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diff --git a/docs/.gitignore b/docs/.gitignore new file mode 100644 index 0000000..e35d885 --- /dev/null +++ b/docs/.gitignore @@ -0,0 +1 @@ +_build diff --git a/docs/Makefile b/docs/Makefile new file mode 100644 index 0000000..3b41221 --- /dev/null +++ b/docs/Makefile @@ -0,0 +1,39 @@ +# Makefile for Sphinx documentation +SPHINXOPTS = +SPHINXBUILD = sphinx-build +PAPER = +BUILDDIR = _build + +# Internal variables +PAPEROPT_a4 = -D latex_paper_size=a4 +PAPEROPT_letter = -D latex_paper_size=letter +ALLSPHINXOPTS = -T -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source + +GH_PAGES_SOURCES = source Makefile +GH_SOURCE_BRANCH = develop + +.PHONY: html clean html latexpdf + +help: + @echo "Please use \`make <target>' where <target> is one of" + @echo " html to make standalone HTML files" + @echo " latexpdf to make LaTeX files and run them through pdflatex" + +clean: + -rm -rf $(BUILDDIR)/* + +latexpdf: + $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex + @echo "Running LaTeX files through pdflatex..." + $(MAKE) -C $(BUILDDIR)/latex all-pdf + @echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex." + +html: + $(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html + @echo + @echo "Build finished. The HTML pages are in $(BUILDDIR)/html." + +man: + $(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man + @echo + @echo "Build finished. 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commands/* diff --git a/docs/source/commands/config.rst b/docs/source/commands/config.rst new file mode 100644 index 0000000..3fc25aa --- /dev/null +++ b/docs/source/commands/config.rst @@ -0,0 +1,12 @@ +:orphan: + +powerline-config manual page +============================ + +.. automan:: powerline.commands.config + :prog: powerline-config + +See also +-------- + +:manpage:`powerline(1)` diff --git a/docs/source/commands/daemon.rst b/docs/source/commands/daemon.rst new file mode 100644 index 0000000..d899c73 --- /dev/null +++ b/docs/source/commands/daemon.rst @@ -0,0 +1,12 @@ +:orphan: + +powerline-daemon manual page +============================ + +.. automan:: powerline.commands.daemon + :prog: powerline-daemon + +See also +-------- + +:manpage:`powerline(1)` diff --git a/docs/source/commands/lint.rst b/docs/source/commands/lint.rst new file mode 100644 index 0000000..92d676d --- /dev/null +++ b/docs/source/commands/lint.rst @@ -0,0 +1,14 @@ +:orphan: + +.. _command-powerline-lint: + +powerline-lint manual page +========================== + +.. automan:: powerline.commands.lint + :prog: powerline-lint + +See also +-------- + +:manpage:`powerline(1)`, :manpage:`powerline-config(1)` diff --git a/docs/source/commands/main.rst b/docs/source/commands/main.rst new file mode 100644 index 0000000..178bcb9 --- /dev/null +++ b/docs/source/commands/main.rst @@ -0,0 +1,12 @@ +:orphan: + +powerline manual page +===================== + +.. automan:: powerline.commands.main + :prog: powerline + +See also +-------- + +:manpage:`powerline-daemon(1)`, :manpage:`powerline-config(1)` diff --git a/docs/source/conf.py b/docs/source/conf.py new file mode 100644 index 0000000..5577ef6 --- /dev/null +++ b/docs/source/conf.py @@ -0,0 +1,70 @@ +# vim:fileencoding=utf-8:noet +from __future__ import (unicode_literals, division, absolute_import, print_function) + +import os +import sys + + +sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(os.getcwd())))) +sys.path.insert(0, os.path.abspath(os.getcwd())) + +extensions = [ + 'powerline_autodoc', 'powerline_automan', + 'sphinx.ext.todo', 'sphinx.ext.coverage', 'sphinx.ext.viewcode', +] +source_suffix = '.rst' +master_doc = 'index' +project = 'Powerline' +version = 'beta' +release = 'beta' +exclude_patterns = ['_build'] +pygments_style = 'sphinx' + +html_theme = 'default' +html_static_path = ['_static'] +html_show_copyright = False + +latex_show_urls = 'footnote' +latex_elements = { + 'preamble': ''' + \\DeclareUnicodeCharacter{22EF}{$\\cdots$} % Dots + \\DeclareUnicodeCharacter{2665}{\\ding{170}} % Heart + \\DeclareUnicodeCharacter{2746}{\\ding{105}} % Snow + \\usepackage{pifont} + ''', +} + +man_pages = [] +for doc in os.listdir(os.path.join(os.path.dirname(__file__), 'commands')): + if doc.endswith('.rst'): + name = doc[:-4] + module = 'powerline.commands.{0}'.format(name) + get_argparser = __import__(str(module), fromlist=[str('get_argparser')]).get_argparser + parser = get_argparser() + description = parser.description + man_pages.append([ + 'commands/' + name, + 'powerline' if name == 'main' else 'powerline-' + name, + description, + '', + 1 + ]) + +on_rtd = os.environ.get('READTHEDOCS', None) == 'True' + +if not on_rtd: # only import and set the theme if we’re building docs locally + try: + import sphinx_rtd_theme + html_theme = 'sphinx_rtd_theme' + html_theme_path = [sphinx_rtd_theme.get_html_theme_path()] + except ImportError: + pass + +if on_rtd or html_theme == 'sphinx_rtd_theme': + html_context = { + 'css_files': [ + 'https://media.readthedocs.org/css/sphinx_rtd_theme.css', + 'https://media.readthedocs.org/css/readthedocs-doc-embed.css', + '_static/css/theme_overrides.css', + ], + } diff --git a/docs/source/configuration.rst b/docs/source/configuration.rst new file mode 100644 index 0000000..412fb6a --- /dev/null +++ b/docs/source/configuration.rst @@ -0,0 +1,146 @@ +******************************* +Configuration and customization +******************************* + +.. note:: + **Forking the main GitHub repo is not needed to personalize Powerline + configuration!** Please read through the :ref:`quick-guide` for a quick + introduction to user configuration. + +Powerline is configured with one main configuration file, and with separate +configuration files for themes and colorschemes. All configuration files are +written in JSON, with the exception of segment definitions, which are +written in Python. + +Powerline provides default configurations in the following locations: + +:ref:`Main configuration <config-main>` + :file:`{powerline}/config.json` +:ref:`Colorschemes <config-colorschemes>` + :file:`{powerline}/colorschemes/{name}.json`, + :file:`{powerline}/colorschemes/{extension}/__main__.json`, + :file:`{powerline}/colorschemes/{extension}/{name}.json` +:ref:`Themes <config-themes>` + :file:`{powerline}/themes/{top_theme}.json`, + :file:`{powerline}/themes/{extension}/__main__.json`, + :file:`{powerline}/themes/{extension}/default.json` + +Here `{powerline}` is one of the following: + +#. The default configuration directory located in the main package: + :file:`{powerline_root}/powerline/config_files`. May be absent in some + packages (e.g. when installing via Gentoo ebuilds). +#. If variable ``$XDG_CONFIG_DIRS`` is set and non-empty then to any + :file:`{directory}/powerline` where `{directory}` is a directory listed in + a colon-separated ``$XDG_CONFIG_DIRS`` list. Directories are checked in + reverse order. +#. User configuration directory located in :file:`$XDG_CONFIG_HOME/powerline`. + This usually corresponds to :file:`~/.config/powerline` on all platforms. + +If per-instance configuration is needed please refer to :ref:`Local +configuration overrides <local-configuration-overrides>`. + +.. _configuration-merging: + +.. note:: + Existing multiple configuration files that have the same name, but are placed + in different directories, will be merged. Merging happens in the order given + in the above list of possible `{powerline}` meanings. + + When merging configuration only dictionaries are merged and they are merged + recursively: keys from next file overrule those from the previous unless + corresponding values are both dictionaries in which case these dictionaries + are merged and key is assigned the result of the merge. + +.. note:: Some configuration files (i.e. themes and colorschemes) have two level + of merging: first happens merging described above, second theme- or + colorscheme-specific merging happens. + +.. _quick-guide: + +Quick setup guide +================= + +This guide will help you with the initial configuration of Powerline. + +Look at configuration in :file:`{powerline_root}/powerline/config_files`. If you +want to modify some file you can create :file:`~/.config/powerline` directory +and put modifications there: all configuration files are :ref:`merged +<configuration-merging>` with each other. + +Each extension (vim, tmux, etc.) has its own theme, and they are located in +:file:`{config directory}/themes/{extension}/default.json`. Best way to modify +it is to copy this theme as a whole, remove ``segment_data`` key with +corresponding value if present (unless you need to modify it, in which case only +modifications must be left) and do necessary modifications in the list of +segments (lists are not subject to merging: this is why you need a copy). + +If you want to move, remove or customize any of the provided segments in the +copy, you can do that by updating the segment dictionary in the theme you want +to customize. A segment dictionary looks like this: + +.. code-block:: javascript + + { + "name": "segment_name" + ... + } + +You can move the segment dictionaries around to change the segment +positions, or remove the entire dictionary to remove the segment from the +prompt or statusline. + +.. note:: It’s essential that the contents of all your configuration files + is valid JSON! It’s strongly recommended that you run your configuration + files through ``jsonlint`` after changing them. + +.. note:: + If your modifications appear not to work, run :ref:`powerline-lint script + <command-powerline-lint>`. This script should show you the location of the + error. + +Some segments need a user configuration to work properly. Here’s a couple of +segments that you may want to customize right away: + +**E-mail alert segment** + You have to set your username and password (and possibly server/port) + for the e-mail alert segment. If you’re using GMail it’s recommended + that you `generate an application-specific password + <https://accounts.google.com/IssuedAuthSubTokens>`_ for this purpose. + + Open a theme file, scroll down to the ``email_imap_alert`` segment and + set your ``username`` and ``password``. The server defaults to GMail’s + IMAP server, but you can set the server/port by adding a ``server`` and + a ``port`` argument. +**Weather segment** + The weather segment will try to find your location using a GeoIP lookup, + so unless you’re on a VPN you probably won’t have to change the location + query. + + If you want to change the location query or the temperature unit you’ll + have to update the segment arguments. Open a theme file, scroll down to + the weather segment and update it to include unit/location query + arguments: + + .. code-block:: javascript + + { + "name": "weather", + "priority": 50, + "args": { + "unit": "F", + "location_query": "oslo, norway" + } + }, + +References +========== + +.. toctree:: + :glob: + + configuration/reference + configuration/segments + configuration/listers + configuration/selectors + configuration/local diff --git a/docs/source/configuration/listers.rst b/docs/source/configuration/listers.rst new file mode 100644 index 0000000..7aaaabc --- /dev/null +++ b/docs/source/configuration/listers.rst @@ -0,0 +1,35 @@ +.. _config-listers: + +**************** +Lister reference +**************** + +Listers are special segment collections which allow to show some list of +segments for each entity in the list of entities (multiply their segments list +by a list of entities). E.g. ``powerline.listers.vim.tablister`` presented with +``powerline.segments.vim.tabnr`` and ``….file_name`` as segments will emit +segments with buffer names and tabpage numbers for each tabpage shown by vim. + +Listers appear in configuration as irregular segments having ``segment_list`` as +their type and ``segments`` key with a list of segments (a bit more details in +:ref:`Themes section of configuration reference <config-themes-segments>`). + +More information in :ref:`Writing listers <dev-listers>` section. + +Vim listers +----------- + +.. automodule:: powerline.listers.vim + :members: + +Pdb listers +----------- + +.. automodule:: powerline.listers.pdb + :members: + +i3wm listers +------------ + +.. automodule:: powerline.listers.i3wm + :members: diff --git a/docs/source/configuration/local.rst b/docs/source/configuration/local.rst new file mode 100644 index 0000000..0f3d110 --- /dev/null +++ b/docs/source/configuration/local.rst @@ -0,0 +1,260 @@ +.. _local-configuration-overrides: + +***************************** +Local configuration overrides +***************************** + +Depending on the application used it is possible to override configuration. Here +is the list: + +Vim overrides +============= + +Vim configuration can be overridden using the following options: + +.. _local-configuration-overrides-vim-config: + +``g:powerline_config_overrides`` + Dictionary, recursively merged with contents of + :file:`powerline/config.json`. + +``g:powerline_theme_overrides`` + Dictionary mapping theme names to theme overrides, recursively merged with + contents of :file:`powerline/themes/vim/{key}.json`. Note that this way some + value (e.g. segment) in a list cannot be redefined, only the whole list + itself: only dictionaries are merged recursively. + +``g:powerline_config_paths`` + Paths list (each path must be expanded, ``~`` shortcut is not supported). + Points to the list of directories which will be searched for configuration. + When this option is present, none of the other locations are searched. + +``g:powerline_no_python_error`` + If this variable is set to a true value it will prevent Powerline from reporting + an error when loaded in a copy of vim without the necessary Python support. + +``g:powerline_use_var_handler`` + This variable may be set to either 0 or 1. If it is set to 1 then Vim will + save log in ``g:powerline_log_messages`` variable in addition to whatever + was configured in :ref:`log_* options <config-common-log>`. Level is always + :ref:`log_level <config-common-log_level>`, same for format. + + .. warning:: + This variable is deprecated. Use :ref:`log_file option + <config-common-log>` in conjunction with + :py:class:`powerline.vim.VimVarHandler` class and :ref:`Vim config + overrides variable <local-configuration-overrides-vim-config>`. Using + this is also the only variant to make saving into the environment + variable the *only* place where log is saved or save into different + variable. + + .. autoclass:: powerline.vim.VimVarHandler + +.. _local-configuration-overrides-script: + +Powerline script overrides +========================== + +Powerline script has a number of options controlling powerline behavior. Here +``VALUE`` always means “some JSON object”. + +``-c KEY.NESTED_KEY=VALUE`` or ``--config-override=KEY.NESTED_KEY=VALUE`` + Overrides options from :file:`powerline/config.json`. + ``KEY.KEY2.KEY3=VALUE`` is a shortcut for ``KEY={"KEY2": {"KEY3": VALUE}}``. + Multiple options (i.e. ``-c K1=V1 -c K2=V2``) are allowed, result (in the + example: ``{"K1": V1, "K2": V2}``) is recursively merged with the contents + of the file. + + If ``VALUE`` is omitted then corresponding key will be removed from the + configuration (if it was present). + +``-t THEME_NAME.KEY.NESTED_KEY=VALUE`` or ``--theme-override=THEME_NAME.KEY.NESTED_KEY=VALUE`` + Overrides options from :file:`powerline/themes/{ext}/{THEME_NAME}.json`. + ``KEY.NESTED_KEY=VALUE`` is processed like described above, ``{ext}`` is the + first argument to powerline script. May be passed multiple times. + + If ``VALUE`` is omitted then corresponding key will be removed from the + configuration (if it was present). + +``-p PATH`` or ``--config-path=PATH`` + Sets directory where configuration should be read from. If present, no + default locations are searched for configuration. No expansions are + performed by powerline script itself, but ``-p ~/.powerline`` will likely be + expanded by the shell to something like ``-p /home/user/.powerline``. + +.. warning:: + Such overrides are suggested for testing purposes only. Use + :ref:`Environment variables overrides <local-configuration-overrides-env>` + for other purposes. + +.. _local-configuration-overrides-env: + +Environment variables overrides +=============================== + +All bindings that use ``POWERLINE_COMMAND`` environment variable support taking +overrides from environment variables. In this case overrides should look like +the following:: + + OVERRIDE='key1.key2.key3=value;key4.key5={"value":1};key6=true;key1.key7=10' + +. This will be parsed into + +.. code-block:: Python + + { + "key1": { + "key2": { + "key3": "value" + }, + "key7": 10, + }, + "key4": { + "key5": { + "value": 1, + }, + }, + "key6": True, + } + +. Rules: + +#. Environment variable must form a semicolon-separated list of key-value pairs: + ``key=value;key2=value2``. +#. Keys are always dot-separated strings that must not contain equals sign (as + well as semicolon) or start with an underscore. They are interpreted + literally and create a nested set of dictionaries: ``k1.k2.k3`` creates + ``{"k1":{"k2":{}}}`` and inside the innermost dictionary last key (``k3`` in + the example) is contained with its value. +#. Value may be empty in which case they are interpreted as an order to remove + some value: ``k1.k2=`` will form ``{"k1":{"k2":REMOVE_THIS_KEY}}`` nested + dictionary where ``k2`` value is a special value that tells + dictionary-merging function to remove ``k2`` rather then replace it with + something. +#. Value may be a JSON strings like ``{"a":1}`` (JSON dictionary), ``["a",1]`` + (JSON list), ``1`` or ``-1`` (JSON number), ``"abc"`` (JSON string) or + ``true``, ``false`` and ``null`` (JSON boolean objects and ``Null`` object + from JSON). General rule is that anything starting with a digit (U+0030 till + U+0039, inclusive), a hyphenminus (U+002D), a quotation mark (U+0022), a left + curly bracket (U+007B) or a left square bracket (U+005B) is considered to be + some JSON object, same for *exact* values ``true``, ``false`` and ``null``. +#. Any other value is considered to be literal string: ``k1=foo:bar`` parses to + ``{"k1": "foo:bar"}``. + +The following environment variables may be used for overrides according to the +above rules: + +``POWERLINE_CONFIG_OVERRIDES`` + Overrides values from :file:`powerline/config.json`. + +``POWERLINE_THEME_OVERRIDES`` + Overrides values from :file:`powerline/themes/{ext}/{key}.json`. Top-level + key is treated as a name of the theme for which overrides are used: e.g. to + disable cwd segment defined in :file:`powerline/themes/shell/default.json` + one needs to use:: + + POWERLINE_THEME_OVERRIDES=default.segment_data.cwd.display=false + +Additionally one environment variable is a usual *colon*-separated list of +directories: ``POWERLINE_CONFIG_PATHS``. This one defines paths which will be +searched for configuration. Empty paths in ``POWERLINE_CONFIG_PATHS`` are +ignored. + +.. note:: + Overrides from environment variables have lower priority then + :ref:`Powerline script overrides <local-configuration-overrides-script>`. + Latter are suggested for tests only. + +Zsh/zpython overrides +===================== + +Here overrides are controlled by similarly to the powerline script, but values +are taken from zsh variables. :ref:`Environment variable overrides +<local-configuration-overrides-env>` are also supported: if variable is a string +this variant is used. + +``POWERLINE_CONFIG_OVERRIDES`` + Overrides options from :file:`powerline/config.json`. Should be a zsh + associative array with keys equal to ``KEY.NESTED_KEY`` and values being + JSON strings. Pair ``KEY.KEY1 VALUE`` is equivalent to ``{"KEY": {"KEY1": + VALUE}}``. All pairs are then recursively merged into one dictionary and + this dictionary is recursively merged with the contents of the file. + +``POWERLINE_THEME_OVERRIDES`` + Overrides options from :file:`powerline/themes/shell/*.json`. Should be + a zsh associative array with keys equal to ``THEME_NAME.KEY.NESTED_KEY`` and + values being JSON strings. Is processed like the above + ``POWERLINE_CONFIG_OVERRIDES``, but only subdictionaries for ``THEME_NAME`` + key are merged with theme configuration when theme with given name is + requested. + +``POWERLINE_CONFIG_PATHS`` + Sets directories where configuration should be read from. If present, no + default locations are searched for configuration. No expansions are + performed by powerline script itself, but zsh usually performs them on its + own if variable without is set without quotes: ``POWERLINE_CONFIG_PATHS=( + ~/example )``. In addition to arrays usual colon-separated “array” string + can be used: ``POWERLINE_CONFIG_PATHS=$HOME/path1:$HOME/path2``. + +Ipython overrides +================= + +Ipython overrides depend on ipython version. Before ipython-0.11 additional +keyword arguments should be passed to setup() function. After ipython-0.11 +``c.Powerline.KEY`` should be used. Supported ``KEY`` strings or keyword +argument names: + +``config_overrides`` + Overrides options from :file:`powerline/config.json`. Should be a dictionary + that will be recursively merged with the contents of the file. + +``theme_overrides`` + Overrides options from :file:`powerline/themes/ipython/*.json`. Should be + a dictionary where keys are theme names and values are dictionaries which + will be recursively merged with the contents of the given theme. + +``config_paths`` + Sets directories where configuration should be read from. If present, no + default locations are searched for configuration. No expansions are + performed thus paths starting with ``~/`` cannot be used: use + :py:func:`os.path.expanduser`. + +Prompt command +============== + +In addition to the above configuration options ``$POWERLINE_COMMAND`` +environment variable can be used to tell shell or tmux to use specific powerline +implementation and ``$POWERLINE_CONFIG_COMMAND`` to tell zsh or tmux where +``powerline-config`` script is located. This is mostly useful for putting +powerline into different directory. + +.. note:: + + ``$POWERLINE_COMMAND`` is always treated as one path in shell bindings, so + path with spaces in it may be used. To specify additional arguments one may + use ``$POWERLINE_COMMAND_ARGS``, but note that this variable exists for + testing purposes only and may be removed. One should use :ref:`Environment + variable overrides <local-configuration-overrides-env>` instead. + +To disable prompt in shell, but still have tmux support or to disable tmux +support environment variables ``$POWERLINE_NO_{SHELL}_PROMPT`` and +``$POWERLINE_NO_{SHELL}_TMUX_SUPPORT`` can be used (substitute ``{SHELL}`` with +the name of the shell (all-caps) that should be affected (e.g. ``BASH``) or use +all-inclusive ``SHELL`` that will disable support for all shells). These +variables have no effect after configuration script was sourced (in fish case: +after ``powerline-setup`` function was run). To disable specific feature support +set one of these variables to some non-empty value. + +In order to keep shell prompt, but avoid launching Python twice to get unused +:ref:`above <config-themes-above>` lines in tcsh ``$POWERLINE_NO_TCSH_ABOVE`` or +``$POWERLINE_NO_SHELL_ABOVE`` variable should be set. + +In order to remove additional space from the end of the right prompt in fish +that was added in order to support multiline prompt ``$POWERLINE_NO_FISH_ABOVE`` +or ``$POWERLINE_NO_SHELL_ABOVE`` variable should be set. + +PDB overrides +============= + +Like shell bindings :ref:`PDB bindings <pdb-prompt>` take overrides from +:ref:`environment variables <local-configuration-overrides-env>`. diff --git a/docs/source/configuration/reference.rst b/docs/source/configuration/reference.rst new file mode 100644 index 0000000..d4fd4ab --- /dev/null +++ b/docs/source/configuration/reference.rst @@ -0,0 +1,602 @@ +*********************** +Configuration reference +*********************** + +.. _config-main: + +Main configuration +================== + +:Location: :file:`powerline/config.json` + +The main configuration file defines some common options that applies to all +extensions, as well as some extension-specific options like themes and +colorschemes. + +Common configuration +-------------------- + +Common configuration is a subdictionary that is a value of ``common`` key in +:file:`powerline/config.json` file. + +.. _config-common-term_truecolor: + +``term_truecolor`` + Defines whether to output cterm indices (8-bit) or RGB colors (24-bit) + to the terminal emulator. See the :ref:`term-feature-support-matrix` for + information on whether used terminal emulator supports 24-bit colors. + + This variable is forced to be ``false`` if :ref:`term_escape_style + <config-common-term_escape_style>` option is set to ``"fbterm"`` or if it is + set to ``"auto"`` and powerline detected fbterm. + +.. _config-common-term_escape_style: + +``term_escape_style`` + Defines what escapes sequences should be used. Accepts three variants: + + ======= =================================================================== + Variant Description + ======= =================================================================== + auto ``xterm`` or ``fbterm`` depending on ``$TERM`` variable value: + ``TERM=fbterm`` implies ``fbterm`` escaping style, all other values + select ``xterm`` escaping. + xterm Uses ``\e[{fb};5;{color}m`` for colors (``{fb}`` is either ``38`` + (foreground) or ``48`` (background)). Should be used for most + terminals. + fbterm Uses ``\e[{fb};{color}}`` for colors (``{fb}`` is either ``1`` + (foreground) or ``2`` (background)). Should be used for fbterm: + framebuffer terminal. + ======= =================================================================== + +.. _config-common-ambiwidth: + +``ambiwidth`` + Tells powerline what to do with characters with East Asian Width Class + Ambiguous (such as Euro, Registered Sign, Copyright Sign, Greek + letters, Cyrillic letters). Valid values: any positive integer; it is + suggested that this option is only set it to 1 (default) or 2. + +.. _config-common-watcher: + +``watcher`` + Select filesystem watcher. Variants are + + ======= =================================== + Variant Description + ======= =================================== + auto Selects most performant watcher. + inotify Select inotify watcher. Linux only. + stat Select stat-based polling watcher. + uv Select libuv-based watcher. + ======= =================================== + + Default is ``auto``. + +.. _config-common-additional_escapes: + +``additional_escapes`` + Valid for shell extensions, makes sense only if :ref:`term_truecolor + <config-common-term_truecolor>` is enabled. Is to be set from command-line. + Controls additional escaping that is needed for tmux/screen to work with + terminal true color escape codes: normally tmux/screen prevent terminal + emulator from receiving these control codes thus rendering powerline prompt + colorless. Valid values: ``"tmux"``, ``"screen"``, ``null`` (default). + +.. _config-common-paths: + +``paths`` + Defines additional paths which will be searched for modules when using + :ref:`function segment option <config-themes-seg-function>` or :ref:`Vim + local_themes option <config-ext-local_themes>`. Paths defined here have + priority when searching for modules. + +.. _config-common-log: + +``log_file`` + Defines how logs will be handled. There are three variants here: + + #. Absent. In this case logging will be done to stderr: equivalent to + ``[["logging.StreamHandler", []]]`` or ``[null]``. + #. Plain string. In this case logging will be done to the given file: + ``"/file/name"`` is equivalent to ``[["logging.FileHandler", + [["/file/name"]]]]`` or ``["/file/name"]``. Leading ``~/`` is expanded in + the file name, so using ``"~/.log/foo"`` is permitted. If directory + pointed by the option is absent, it will be created, but not its parent. + #. List of handler definitions. Handler definition may either be ``null``, + a string or a list with two or three elements: + + #. Logging class name and module. If module name is absent, it is + equivalent to ``logging.handlers``. + #. Class constructor arguments in a form ``[[args[, kwargs]]]``: accepted + variants are ``[]`` (no arguments), ``[args]`` (e.g. + ``[["/file/name"]]``: only positional arguments) or ``[args, kwargs]`` + (e.g. ``[[], {"host": "localhost", "port": 6666}]``: positional and + keyword arguments, but no positional arguments in the example). + #. Optional logging level. Overrides :ref:`log_level key + <config-common-log_level>` and has the same format. + #. Optional format string. Partially overrides :ref:`log_format key + <config-common-log_format>` and has the same format. “Partially” here + means that it may only specify more critical level. + +.. _config-common-log_level: + +``log_level`` + String, determines logging level. Defaults to ``WARNING``. + +.. _config-common-log_format: + +``log_format`` + String, determines format of the log messages. Defaults to + ``'%(asctime)s:%(level)s:%(message)s'``. + +``interval`` + Number, determines time (in seconds) between checks for changed + configuration. Checks are done in a separate thread. Use ``null`` to check + for configuration changes on ``.render()`` call in main thread. + Defaults to ``None``. + +``reload_config`` + Boolean, determines whether configuration should be reloaded at all. + Defaults to ``True``. + +.. _config-common-default_top_theme: + +``default_top_theme`` + String, determines which top-level theme will be used as the default. + Defaults to ``powerline_terminus`` in unicode locales and ``ascii`` in + non-unicode locales. See `Themes`_ section for more details. + +Extension-specific configuration +-------------------------------- + +Common configuration is a subdictionary that is a value of ``ext`` key in +:file:`powerline/config.json` file. + +``colorscheme`` + Defines the colorscheme used for this extension. + +.. _config-ext-theme: + +``theme`` + Defines the theme used for this extension. + +.. _config-ext-top_theme: + +``top_theme`` + Defines the top-level theme used for this extension. See `Themes`_ section + for more details. + +.. _config-ext-local_themes: + +``local_themes`` + Defines themes used when certain conditions are met, e.g. for + buffer-specific statuslines in vim. Value depends on extension used. For vim + it is a dictionary ``{matcher_name : theme_name}``, where ``matcher_name`` + is either ``matcher_module.module_attribute`` or ``module_attribute`` + (``matcher_module`` defaults to ``powerline.matchers.vim``) and + ``module_attribute`` should point to a function that returns boolean value + indicating that current buffer has (not) matched conditions. There is an + exception for ``matcher_name`` though: if it is ``__tabline__`` no functions + are loaded. This special theme is used for ``tabline`` Vim option. + + For shell and ipython it is a simple ``{prompt_type : theme_name}``, where + ``prompt_type`` is a string with no special meaning (specifically it does + not refer to any Python function). Shell has ``continuation``, and + ``select`` prompts with rather self-explanatory names, IPython has ``in2``, + ``out`` and ``rewrite`` prompts (refer to IPython documentation for more + details) while ``in`` prompt is the default. + + For wm (:ref:`lemonbar <lemonbar-usage>` only) it is a dictionary + ``{output : theme_name}`` that maps the ``xrandr`` output names to the + local themes to use on that output. + +.. _config-ext-components: + +``components`` + Determines which extension components should be enabled. This key is highly + extension-specific, here is the table of extensions and corresponding + components: + + +---------+----------+-----------------------------------------------------+ + |Extension|Component |Description | + +---------+----------+-----------------------------------------------------+ + |vim |statusline|Makes Vim use powerline statusline. | + | +----------+-----------------------------------------------------+ + | |tabline |Makes Vim use powerline tabline. | + +---------+----------+-----------------------------------------------------+ + |shell |prompt |Makes shell display powerline prompt. | + | +----------+-----------------------------------------------------+ + | |tmux |Makes shell report its current working directory | + | | |and screen width to tmux for tmux powerline | + | | |bindings. | + | | | | + +---------+----------+-----------------------------------------------------+ + + All components are enabled by default. + +.. _config-ext-update_interval: + +``update_interval`` + Determines how often WM status bars need to be updated, in seconds. Only + valid for WM extensions which use ``powerline-daemon``. Defaults to + 2 seconds. + +.. _config-colors: + +Color definitions +================= + +:Location: :file:`powerline/colors.json` + +.. _config-colors-colors: + +``colors`` + Color definitions, consisting of a dict where the key is the name of the + color, and the value is one of the following: + + * A cterm color index. + * A list with a cterm color index and a hex color string (e.g. ``[123, + "aabbcc"]``). This is useful for colorschemes that use colors that + aren’t available in color terminals. + +``gradients`` + Gradient definitions, consisting of a dict where the key is the name of the + gradient, and the value is a list containing one or two items, second item + is optional: + + * A list of cterm color indices. + * A list of hex color strings. + + It is expected that gradients are defined from least alert color to most + alert or non-alert colors are used. + +.. _config-colorschemes: + +Colorschemes +============ + +:Location: :file:`powerline/colorschemes/{name}.json`, + :file:`powerline/colorschemes/__main__.json`, + :file:`powerline/colorschemes/{extension}/{name}.json` + +Colorscheme files are processed in order given: definitions from each next file +override those from each previous file. It is required that either +:file:`powerline/colorschemes/{name}.json`, or +:file:`powerline/colorschemes/{extension}/{name}.json` exists. + +``name`` + Name of the colorscheme. + +.. _config-colorschemes-groups: + +``groups`` + Segment highlighting groups, consisting of a dict where the key is the + name of the highlighting group (usually the function name for function + segments), and the value is either + + #) a dict that defines the foreground color, background color and + attributes: + + ``fg`` + Foreground color. Must be defined in :ref:`colors + <config-colors-colors>`. + + ``bg`` + Background color. Must be defined in :ref:`colors + <config-colors-colors>`. + + ``attrs`` + List of attributes. Valid values are one or more of ``bold``, + ``italic`` and ``underline``. Note that some attributes may be + unavailable in some applications or terminal emulators. If no + attributes are needed this list should be left empty. + + #) a string (an alias): a name of existing group. This group’s definition + will be used when this color is requested. + +``mode_translations`` + Mode-specific highlighting for extensions that support it (e.g. the vim + extension). It’s an easy way of changing a color in a specific mode. + Consists of a dict where the key is the mode and the value is a dict + with the following options: + + ``colors`` + A dict where the key is the color to be translated in this mode, and + the value is the new color. Both the key and the value must be defined + in :ref:`colors <config-colors-colors>`. + + ``groups`` + Segment highlighting groups for this mode. Same syntax as the main + :ref:`groups <config-colorschemes-groups>` option. + +.. _config-themes: + +Themes +====== + +:Location: :file:`powerline/themes/{top_theme}.json`, + :file:`powerline/themes/{extension}/__main__.json`, + :file:`powerline/themes/{extension}/{name}.json` + +Theme files are processed in order given: definitions from each next file +override those from each previous file. It is required that file +:file:`powerline/themes/{extension}/{name}.json` exists. + +`{top_theme}` component of the file name is obtained either from :ref:`top_theme +extension-specific key <config-ext-top_theme>` or from :ref:`default_top_theme +common configuration key <config-common-default_top_theme>`. Powerline ships +with the following top themes: + +.. _config-top_themes-list: + +========================== ==================================================== +Theme Description +========================== ==================================================== +powerline Default powerline theme with fancy powerline symbols +powerline_unicode7 Theme with powerline dividers and unicode-7 symbols +unicode Theme without any symbols from private use area +unicode_terminus Theme containing only symbols from terminus PCF font +unicode_terminus_condensed Like above, but occupies as less space as possible +powerline_terminus Like unicode_terminus, but with powerline symbols +ascii Theme without any unicode characters at all +========================== ==================================================== + +``name`` + Name of the theme. + +.. _config-themes-default_module: + +``default_module`` + Python module where segments will be looked by default. Defaults to + ``powerline.segments.{ext}``. + +``spaces`` + Defines number of spaces just before the divider (on the right side) or just + after it (on the left side). These spaces will not be added if divider is + not drawn. + +``use_non_breaking_spaces`` + Determines whether non-breaking spaces should be used in place of the + regular ones. This option is needed because regular spaces are not displayed + properly when using powerline with some font configuration. Defaults to + ``True``. + + .. note:: + Unlike all other options this one is only checked once at startup using + whatever theme is :ref:`the default <config-ext-theme>`. If this option + is set in the local themes it will be ignored. This option may also be + ignored in some bindings. + +``outer_padding`` + Defines number of spaces at the end of output (on the right side) or at + the start of output (on the left side). Defaults to ``1``. + + +``dividers`` + Defines the dividers used in all Powerline extensions. + + The ``hard`` dividers are used to divide segments with different + background colors, while the ``soft`` dividers are used to divide + segments with the same background color. + +.. _config-themes-cursor_space: + +``cursor_space`` + Space reserved for user input in shell bindings. It is measured in per + cents. + +``cursor_columns`` + Space reserved for user input in shell bindings. Unlike :ref:`cursor_space + <config-themes-cursor_space>` it is measured in absolute amount of columns. + +.. _config-themes-segment_data: + +``segment_data`` + A dict where keys are segment names or strings ``{module}.{function}``. Used + to specify default values for various keys: + :ref:`after <config-themes-seg-after>`, + :ref:`before <config-themes-seg-before>`, + :ref:`contents <config-themes-seg-contents>` (only for string segments + if :ref:`name <config-themes-seg-name>` is defined), + :ref:`display <config-themes-seg-display>`. + + Key :ref:`args <config-themes-seg-args>` (only for function and + segment_list segments) is handled specially: unlike other values it is + merged with all other values, except that a single ``{module}.{function}`` + key if found prevents merging all ``{function}`` values. + + When using :ref:`local themes <config-ext-local_themes>` values of these + keys are first searched in the segment description, then in ``segment_data`` + key of a local theme, then in ``segment_data`` key of a :ref:`default theme + <config-ext-theme>`. For the :ref:`default theme <config-ext-theme>` itself + step 2 is obviously avoided. + + .. note:: Top-level themes are out of equation here: they are merged + before the above merging process happens. + +.. _config-themes-segments: + +``segments`` + A dict with a ``left`` and a ``right`` lists, consisting of segment + dictionaries. Shell themes may also contain ``above`` list of dictionaries. + Each item in ``above`` list may have ``left`` and ``right`` keys like this + dictionary, but no ``above`` key. + + .. _config-themes-above: + + ``above`` list is used for multiline shell configurations. + + ``left`` and ``right`` lists are used for segments that should be put on the + left or right side in the output. Actual mechanizm of putting segments on + the left or the right depends on used renderer, but most renderers require + one to specify segment with :ref:`width <config-themes-seg-width>` ``auto`` + on either side to make generated line fill all of the available width. + + Each segment dictionary has the following options: + + .. _config-themes-seg-type: + + ``type`` + The segment type. Can be one of ``function`` (default), ``string`` or + ``segment_list``: + + ``function`` + The segment contents is the return value of the function defined in + the :ref:`function option <config-themes-seg-function>`. + + List of function segments is available in :ref:`Segment reference + <config-segments>` section. + + ``string`` + A static string segment where the contents is defined in the + :ref:`contents option <config-themes-seg-contents>`, and the + highlighting group is defined in the :ref:`highlight_groups option + <config-themes-seg-highlight_groups>`. + + ``segment_list`` + Sub-list of segments. This list only allows :ref:`function + <config-themes-seg-function>`, :ref:`segments + <config-themes-seg-segments>` and :ref:`args + <config-themes-seg-args>` options. + + List of lister segments is available in :ref:`Lister reference + <config-listers>` section. + + .. _config-themes-seg-name: + + ``name`` + Segment name. If present allows referring to this segment in + :ref:`segment_data <config-themes-segment_data>` dictionary by this + name. If not ``string`` segments may not be referred there at all and + ``function`` and ``segment_list`` segments may be referred there using + either ``{module}.{function_name}`` or ``{function_name}``, whichever + will be found first. Function name is taken from :ref:`function key + <config-themes-seg-function>`. + + .. note:: + If present prevents ``function`` key from acting as a segment name. + + .. _config-themes-seg-function: + + ``function`` + Function used to get segment contents, in format ``{module}.{function}`` + or ``{function}``. If ``{module}`` is omitted :ref:`default_module + option <config-themes-default_module>` is used. + + .. _config-themes-seg-highlight_groups: + + ``highlight_groups`` + Highlighting group for this segment. Consists of a prioritized list of + highlighting groups, where the first highlighting group that is + available in the colorscheme is used. + + Ignored for segments that have ``function`` type. + + .. _config-themes-seg-before: + + ``before`` + A string which will be prepended to the segment contents. + + .. _config-themes-seg-after: + + ``after`` + A string which will be appended to the segment contents. + + .. _config-themes-seg-contents: + + ``contents`` + Segment contents, only required for ``string`` segments. + + .. _config-themes-seg-args: + + ``args`` + A dict of arguments to be passed to a ``function`` segment. + + .. _config-themes-seg-align: + + ``align`` + Aligns the segments contents to the left (``l``), center (``c``) or + right (``r``). Has no sense if ``width`` key was not specified or if + segment provides its own function for ``auto`` ``width`` handling and + does not care about this option. + + .. _config-themes-seg-width: + + ``width`` + Enforces a specific width for this segment. + + This segment will work as a spacer if the width is set to ``auto``. + Several spacers may be used, and the space will be distributed + equally among all the spacer segments. Spacers may have contents, + either returned by a function or a static string, and the contents + can be aligned with the ``align`` property. + + .. _config-themes-seg-priority: + + ``priority`` + Optional segment priority. Segments with priority ``None`` (the default + priority, represented by ``null`` in json) will always be included, + regardless of the width of the prompt/statusline. + + If the priority is any number, the segment may be removed if the + prompt/statusline width is too small for all the segments to be + rendered. A lower number means that the segment has a higher priority. + + Segments are removed according to their priority, with low priority + segments (i.e. with a greater priority number) being removed first. + + .. _config-themes-seg-draw_divider: + + ``draw_hard_divider``, ``draw_soft_divider`` + Whether to draw a divider between this and the adjacent segment. The + adjacent segment is to the *right* for segments on the *left* side, and + vice versa. Hard dividers are used between segments with different + background colors, soft ones are used between segments with same + background. Both options default to ``True``. + + .. _config-themes-seg-draw_inner_divider: + + ``draw_inner_divider`` + Determines whether inner soft dividers are to be drawn for function + segments. Only applicable for functions returning multiple segments. + Defaults to ``False``. + + .. _config-themes-seg-exclude_modes: + + ``exclude_modes``, ``include_modes`` + A list of modes where this segment will be excluded: the segment is not + included or is included in all modes, *except* for the modes in one of + these lists respectively. If ``exclude_modes`` is not present then it + acts like an empty list (segment is not excluded from any modes). + Without ``include_modes`` it acts like a list with all possible modes + (segment is included in all modes). When there are both + ``exclude_modes`` overrides ``include_modes``. + + .. _config-themes-seg-exclude_function: + + ``exclude_function``, ``include_function`` + Function name in a form ``{name}`` or ``{module}.{name}`` (in the first + form ``{module}`` defaults to ``powerline.selectors.{ext}``). Determines + under which condition specific segment will be included or excluded. By + default segment is always included and never excluded. + ``exclude_function`` overrides ``include_function``. + + .. note:: + Options :ref:`exclude_/include_modes + <config-themes-seg-exclude_modes>` complement + ``exclude_/include_functions``: segment will be included if it is + included by either ``include_mode`` or ``include_function`` and will + be excluded if it is excluded by either ``exclude_mode`` or + ``exclude_function``. + + .. _config-themes-seg-display: + + ``display`` + Boolean. If false disables displaying of the segment. + Defaults to ``True``. + + .. _config-themes-seg-segments: + + ``segments`` + A list of subsegments. diff --git a/docs/source/configuration/segments.rst b/docs/source/configuration/segments.rst new file mode 100644 index 0000000..63b4975 --- /dev/null +++ b/docs/source/configuration/segments.rst @@ -0,0 +1,28 @@ +.. _config-segments: + +***************** +Segment reference +***************** + +Segments +======== + +Segments are written in Python, and the default segments provided with +Powerline are located in :file:`powerline/segments/{extension}.py`. +User-defined segments can be defined in any module in ``sys.path`` or +:ref:`paths common configuration option <config-common-paths>`, import is +always absolute. + +Segments are regular Python functions, and they may accept arguments. All +arguments should have a default value which will be used for themes that +don’t provide an ``args`` dict. + +More information is available in :ref:`Writing segments <dev-segments>` section. + +Available segments +================== + +.. toctree:: + :glob: + + segments/* diff --git a/docs/source/configuration/segments/common.rst b/docs/source/configuration/segments/common.rst new file mode 100644 index 0000000..5d52d69 --- /dev/null +++ b/docs/source/configuration/segments/common.rst @@ -0,0 +1,57 @@ +*************** +Common segments +*************** + +VCS submodule +============= + +.. automodule:: powerline.segments.common.vcs + :members: + +System properties +================= + +.. automodule:: powerline.segments.common.sys + :members: + +Network +======= + +.. automodule:: powerline.segments.common.net + :members: + +Current environment +=================== + +.. automodule:: powerline.segments.common.env + :members: + +Battery +======= + +.. automodule:: powerline.segments.common.bat + :members: + +Weather +======= + +.. automodule:: powerline.segments.common.wthr + :members: + +Date and time +============= + +.. automodule:: powerline.segments.common.time + :members: + +Mail +==== + +.. automodule:: powerline.segments.common.mail + :members: + +Media players +============= + +.. automodule:: powerline.segments.common.players + :members: diff --git a/docs/source/configuration/segments/i3wm.rst b/docs/source/configuration/segments/i3wm.rst new file mode 100644 index 0000000..d103374 --- /dev/null +++ b/docs/source/configuration/segments/i3wm.rst @@ -0,0 +1,6 @@ +************* +i3wm segments +************* + +.. automodule:: powerline.segments.i3wm + :members: diff --git a/docs/source/configuration/segments/pdb.rst b/docs/source/configuration/segments/pdb.rst new file mode 100644 index 0000000..b9a104b --- /dev/null +++ b/docs/source/configuration/segments/pdb.rst @@ -0,0 +1,7 @@ +************ +PDB segments +************ + +.. automodule:: powerline.segments.pdb + :members: + diff --git a/docs/source/configuration/segments/shell.rst b/docs/source/configuration/segments/shell.rst new file mode 100644 index 0000000..fb3c804 --- /dev/null +++ b/docs/source/configuration/segments/shell.rst @@ -0,0 +1,6 @@ +************** +Shell segments +************** + +.. automodule:: powerline.segments.shell + :members: diff --git a/docs/source/configuration/segments/tmux.rst b/docs/source/configuration/segments/tmux.rst new file mode 100644 index 0000000..1a4a78f --- /dev/null +++ b/docs/source/configuration/segments/tmux.rst @@ -0,0 +1,6 @@ +************* +Tmux segments +************* + +.. automodule:: powerline.segments.tmux + :members: diff --git a/docs/source/configuration/segments/vim.rst b/docs/source/configuration/segments/vim.rst new file mode 100644 index 0000000..5df70d6 --- /dev/null +++ b/docs/source/configuration/segments/vim.rst @@ -0,0 +1,46 @@ +************ +Vim segments +************ + +.. automodule:: powerline.segments.vim + :members: + + +Plugin-specific segments +======================== + +Asynchronous Linter Engine (ALE) segments +----------------------------------------- + +.. automodule:: powerline.segments.vim.plugin.ale + :members: + +Syntastic segments +------------------ + +.. automodule:: powerline.segments.vim.plugin.syntastic + :members: + +Command-T segments +------------------ + +.. automodule:: powerline.segments.vim.plugin.commandt + :members: + +Tagbar segments +--------------- + +.. automodule:: powerline.segments.vim.plugin.tagbar + :members: + +NERDTree segments +----------------- + +.. automodule:: powerline.segments.vim.plugin.nerdtree + :members: + +Capslock segments +----------------- + +.. automodule:: powerline.segments.vim.plugin.capslock + :members: diff --git a/docs/source/configuration/selectors.rst b/docs/source/configuration/selectors.rst new file mode 100644 index 0000000..f9367b2 --- /dev/null +++ b/docs/source/configuration/selectors.rst @@ -0,0 +1,17 @@ +.. _config-selectors: + +****************** +Selector functions +****************** + +Selector functions are functions that return ``True`` or ``False`` depending on +application state. They are used for :ref:`exclude_function and include_function +segment options <config-themes-seg-exclude_function>`. + +Available selectors +=================== + +.. toctree:: + :glob: + + selectors/* diff --git a/docs/source/configuration/selectors/vim.rst b/docs/source/configuration/selectors/vim.rst new file mode 100644 index 0000000..5097320 --- /dev/null +++ b/docs/source/configuration/selectors/vim.rst @@ -0,0 +1,6 @@ +************* +Vim selectors +************* + +.. automodule:: powerline.selectors.vim + :members: diff --git a/docs/source/develop.rst b/docs/source/develop.rst new file mode 100644 index 0000000..bf45498 --- /dev/null +++ b/docs/source/develop.rst @@ -0,0 +1,13 @@ +*************** +Developer guide +*************** + +.. toctree:: + :maxdepth: 2 + :glob: + + develop/segments + develop/listers + develop/local-themes + develop/extensions + develop/tips-and-tricks diff --git a/docs/source/develop/extensions.rst b/docs/source/develop/extensions.rst new file mode 100644 index 0000000..2ddf223 --- /dev/null +++ b/docs/source/develop/extensions.rst @@ -0,0 +1,47 @@ +******************************** +Creating new powerline extension +******************************** + +Powerline extension is a code that tells powerline how to highlight and display +segments in some set of applications. Specifically this means + +#. Creating a :py:class:`powerline.Powerline` subclass that knows how to obtain + :ref:`local configuration overrides <local-configuration-overrides>`. It also + knows how to load local themes, but not when to apply them. + + Instance of this class is the only instance that interacts directly with + bindings code, so it has a proxy :py:meth:`powerline.Powerline.render` and + :py:meth:`powerline.Powerline.shutdown` methods and other methods which may + be useful for bindings. + + This subclass must be placed directly in :file:`powerline` directory (e.g. in + :file:`powerline/vim.py`) and named like ``VimPowerline`` (version of the + file name without directory and extension and first capital letter + + ``Powerline``). There is no technical reason for naming classes like this. +#. Creating a :py:class:`powerline.renderer.Renderer` subclass that knows how to + highlight a segment or reset highlighting to the default value (only makes + sense in prompts). It is also responsible for selecting local themes and + computing text width. + + This subclass must be placed directly in :file:`powerline/renderers` + directory (for powerline extensions developed for a set of applications use + :file:`powerline/renderers/{ext}/*.py`) and named like ``ExtRenderer`` or + ``AppPromptRenderer``. For technical reasons the class itself must be + referenced in ``renderer`` module attribute thus allowing only one renderer + per one module. +#. Creating an extension bindings. These are to be placed in + :file:`powerline/bindings/{ext}` and may contain virtually anything which may + be required for powerline to work inside given applications, assuming it does + not fit in other places. + +Powerline class +=============== + +.. autoclass:: powerline.Powerline + :members: + +Renderer class +============== + +.. autoclass:: powerline.renderer.Renderer + :members: diff --git a/docs/source/develop/listers.rst b/docs/source/develop/listers.rst new file mode 100644 index 0000000..e779704 --- /dev/null +++ b/docs/source/develop/listers.rst @@ -0,0 +1,49 @@ +.. _dev-listers: + +*************** +Writing listers +*************** + +Listers provide a way to show some segments multiple times: once per each entity +(buffer, tabpage, etc) lister knows. They are functions which receive the +following arguments: + +``pl`` + A :py:class:`powerline.PowerlineLogger` class instance. It must be used for + logging. + +``segment_info`` + Base segment info dictionary. Lister function or class must have + ``powerline_requires_segment_info`` to receive this argument. + + .. warning:: + Listers are close to useless if they do not have access to this + argument. + + Refer to :ref:`segment_info detailed description <dev-segments-info>` for + further details. + +``draw_inner_divider`` + If False (default) soft dividers between segments in the listed group will + not be drawn regardless of actual segment settings. If True they will be + drawn, again regardless of actual segment settings. Set it to ``None`` in + order to respect segment settings. + +And also any other argument(s) specified by user in :ref:`args key +<config-themes-seg-args>` (no additional arguments by default). + +Listers must return a sequence of pairs. First item in the pair must contain +a ``segment_info`` dictionary specific to one of the listed entities. + +Second item must contain another dictionary: it will be used to modify the +resulting segment. In addition to :ref:`usual keys that describe segment +<dev-segments-segment>` the following keys may be present (it is advised that +*only* the following keys will be used): + +``priority_multiplier`` + Value (usually a ``float``) used to multiply segment priority. It is useful + for finer-grained controlling which segments disappear first: e.g. when + listing tab pages make first disappear directory names of the tabpages which + are most far away from current tabpage, then (when all directory names + disappeared) buffer names. Check out existing listers implementation in + :file:`powerline/listers/vim.py`. diff --git a/docs/source/develop/local-themes.rst b/docs/source/develop/local-themes.rst new file mode 100644 index 0000000..959e1c4 --- /dev/null +++ b/docs/source/develop/local-themes.rst @@ -0,0 +1,59 @@ +************ +Local themes +************ + +From the user point of view local themes are the regular themes with a specific +scope where they are applied (i.e. specific vim window or specific kind of +prompt). Used themes are defined in :ref:`local_themes key +<config-ext-local_themes>`. + +Vim local themes +================ + +Vim is the only available extension that has a wide variaty of options for local +themes. It is the only extension where local theme key refers to a function as +described in :ref:`local_themes value documentation <config-ext-local_themes>`. + +This function always takes a single value named ``matcher_info`` which is the +same dictionary as :ref:`segment_info dictionary <dev-segment_info-vim>`. Unlike +segments it takes this single argument as a *positional* argument, not as +a keyword one. + +Matcher function should return a boolean value: ``True`` if theme applies for +the given ``matcher_info`` dictionary or ``False`` if it is not. When one of the +matcher functions returns ``True`` powerline takes the corresponding theme at +uses it for the given window. Matchers are not tested in any particular order. + +In addition to :ref:`local_themes configuration key <config-ext-local_themes>` +developer of some plugin which wishes to support powerline without including his +code in powerline tree may use +:py:meth:`powerline.vim.VimPowerline.add_local_theme` method. It accepts two +arguments: matcher name (same as in :ref:`local_themes +<config-ext-local_themes>`) and dictionary with theme. This dictionary is merged +with :ref:`top theme <config-ext-top_theme>` and +:file:`powerline/themes/vim/__main__.json`. Note that if user already specified +the matcher in his configuration file ``KeyError`` is raised. + +Other local themes +================== + +Except for Vim only IPython and shells have local themes. Unlike Vim these +themes are names with no special meaning (they do not refer to or cause loading +of any Python functions): + ++---------+------------+-------------------------------------------------------+ +|Extension|Theme name |Description | ++---------+------------+-------------------------------------------------------+ +|Shell |continuation|Shown for unfinished command (unclosed quote, | +| | |unfinished cycle). | +| +------------+-------------------------------------------------------+ +| |select |Shown for ``select`` command available in some shells. | ++---------+------------+-------------------------------------------------------+ +|IPython |in2 |Continuation prompt: shown for unfinished (multiline) | +| | |expression, unfinished class or function definition. | +| +------------+-------------------------------------------------------+ +| |out |Displayed before the result. | +| +------------+-------------------------------------------------------+ +| |rewrite |Displayed before the actually executed code when | +| | |``autorewrite`` IPython feature is enabled. | ++---------+------------+-------------------------------------------------------+ diff --git a/docs/source/develop/segments.rst b/docs/source/develop/segments.rst new file mode 100644 index 0000000..543ddd5 --- /dev/null +++ b/docs/source/develop/segments.rst @@ -0,0 +1,547 @@ +.. _dev-segments: + +**************** +Writing segments +**************** + +Each powerline segment is a callable object. It is supposed to be either +a Python function or :py:class:`powerline.segments.Segment` class. As a callable +object it should receive the following arguments: + +.. note:: All received arguments are keyword arguments. + +``pl`` + A :py:class:`powerline.PowerlineLogger` instance. It must be used every time + something needs to be logged. + +``segment_info`` + A dictionary. It is only received if callable has + ``powerline_requires_segment_info`` attribute. + + Refer to :ref:`segment_info detailed description <dev-segments-info>` for + further details. + +``create_watcher`` + Function that will create filesystem watcher once called. Which watcher will + be created exactly is controlled by :ref:`watcher configuration option + <config-common-watcher>`. + +And also any other argument(s) specified by user in :ref:`args key +<config-themes-seg-args>` (no additional arguments by default). + +.. note:: + For powerline-lint to work properly the following things may be needed: + + #. If segment is a :py:class:`powerline.segments.Segment` instance and used + arguments are scattered over multiple methods + :py:meth:`powerline.segments.Segment.argspecobjs` should be overridden in + subclass to tell powerline-lint which objects should be inspected for + arguments. + #. If segment takes some arguments that are never listed, but accessed via + ``kwargs.get()`` or previous function cannot be used for whatever reason + :py:meth:`powerline.segments.Segment.additional_args` should be + overridden in subclass. + #. If user is expected to use one :ref:`name <config-themes-seg-name>` for + multiple segments which cannot be linked to the segment function + automatically by powerline-lint (e.g. because there are no instances of + the segments in question in the default configuration) + :py:func:`powerline.lint.checks.register_common_name` function should be + used. + +Object representing segment may have the following attributes used by +powerline: + +``powerline_requires_segment_info`` + This attribute controls whether segment will receive ``segment_info`` + argument: if it is present argument will be received. + +``powerline_requires_filesystem_watcher`` + This attribute controls whether segment will receive ``create_watcher`` + argument: if it is present argument will be received. + +``powerline_segment_datas`` + This attribute must be a dictionary containing ``top_theme: segment_data`` + mapping where ``top_theme`` is any theme name (it is expected that all of + the names from :ref:`top-level themes list <config-top_themes-list>` are + present) and ``segment_data`` is a dictionary like the one that is contained + inside :ref:`segment_data dictionary in configuration + <config-themes-segment_data>`. This attribute should be used to specify + default theme-specific values for *third-party* segments: powerline + theme-specific values go directly to :ref:`top-level themes + <config-themes>`. + +.. _dev-segments-startup: + +``startup`` + This attribute must be a callable which accepts the following keyword + arguments: + + * ``pl``: :py:class:`powerline.PowerlineLogger` instance which is to be used + for logging. + * ``shutdown_event``: :py:class:`Event` object which will be set when + powerline will be shut down. + * Any arguments found in user configuration for the given segment (i.e. + :ref:`args key <config-themes-seg-args>`). + + This function is called at powerline startup when using long-running + processes (e.g. powerline in vim, in zsh with libzpython, in ipython or in + powerline daemon) and not called when ``powerline-render`` executable is + used (more specific: when :py:class:`powerline.Powerline` constructor + received true ``run_once`` argument). + +.. _dev-segments-shutdown: + +``shutdown`` + This attribute must be a callable that accepts no arguments and shuts down + threads and frees any other resources allocated in ``startup`` method of the + segment in question. + + This function is not called when ``startup`` method is not called. + +.. _dev-segments-expand: + +``expand`` + This attribute must be a callable that accepts the following keyword + arguments: + + * ``pl``: :py:class:`powerline.PowerlineLogger` instance which is to be used + for logging. + * ``amount``: integer number representing amount of display cells result + must occupy. + + .. warning:: + “Amount of display cells” is *not* number of Unicode codepoints, string + length, or byte count. It is suggested that this function should look + something like ``return (' ' * amount) + segment['contents']`` where + ``' '`` may be replaced with anything that is known to occupy exactly + one display cell. + * ``segment``: :ref:`segment dictionary <dev-segments-segment>`. + * Any arguments found in user configuration for the given segment (i.e. + :ref:`args key <config-themes-seg-args>`). + + It must return new value of :ref:`contents <dev-segments-seg-contents>` key. + +.. _dev-segments-truncate: + +``truncate`` + Like :ref:`expand function <dev-segments-expand>`, but for truncating + segments. Here ``amount`` means the number of display cells which must be + freed. + + This function is called for all segments before powerline starts purging + them to free space. + +This callable object should may return either a string (``unicode`` in Python2 +or ``str`` in Python3, *not* ``str`` in Python2 or ``bytes`` in Python3) object +or a list of dictionaries. String object is a short form of the following return +value: + +.. code-block:: python + + [{ + 'contents': original_return, + 'highlight_groups': [segment_name], + }] + +.. _dev-segments-return: + +Returned list is a list of segments treated independently, except for +:ref:`draw_inner_divider key <dev-segments-draw_inner_divider>`. + +All keys in segments returned by the function override those obtained from +:ref:`configuration <config-themes-segments>` and have the same meaning. + +Detailed description of used dictionary keys: + +.. _dev-segments-contents: + +``contents`` + Text displayed by segment. Should be a ``unicode`` (Python2) or ``str`` + (Python3) instance. + +``literal_contents`` + Text that needs to be output literally (i.e. without passing through + :py:meth:`powerline.renderer.strwidth` to determine length, through + :py:meth:`powerline.renderer.escape` to escape special characters and + through :py:meth:`powerline.renderer.hl` to highlight it). Should be a tuple + ``(contents_length, contents)`` where ``contents_length`` is an integer and + ``contents`` is a ``unicode`` (Python2) or ``str`` (Python3) instance. + + If this key is present and its second value is true then other contents keys + (:ref:`contents <dev-segments-contents>`, :ref:`after + <config-themes-seg-after>`, :ref:`before <config-themes-seg-before>`) will + be ignored. + + .. note:: + If target is inclusion of the segment in powerline upstream all segment + functions that output *only* subsegments with ``literal_contents`` key + must contain the following string in documentation:: + + No highlight groups are used (literal segment). + + String must be present on the separate line. + +.. _dev-segments-draw_inner_divider: + +``draw_hard_divider``, ``draw_soft_divider``, ``draw_inner_divider`` + Determines whether given divider should be drawn. All have the same meaning + as :ref:`the similar keys in configuration <config-themes-seg-draw_divider>` + (:ref:`draw_inner_divider <config-themes-seg-draw_inner_divider>`). + +.. _dev-segments-highlight_groups: + +``highlight_groups`` + Determines segment highlighting. Refer to :ref:`themes documentation + <config-themes-seg-highlight_groups>` for more details. + + Defaults to the name of the segment. + + .. note:: + If target is inclusion of the segment in powerline upstream all used + highlighting groups must be specified in the segment documentation in the + form:: + + Highlight groups used: ``g1``[ or ``g2``]*[, ``g3`` (gradient)[ or ``g4``]*]*. + + I.e. use:: + + Highlight groups used: ``foo_gradient`` (gradient) or ``foo``, ``bar``. + + to specify that the segment uses *either* ``foo_gradient`` group or + ``foo`` group *and* ``bar`` group meaning that ``powerline-lint`` will + check that at least one of the first two groups is defined (and if + ``foo_gradient`` is defined it must use at least one gradient color) and + third group is defined as well. + + All groups must be specified on one line. + +``divider_highlight_group`` + Determines segment divider highlight group. Only applicable for soft + dividers: colors for hard dividers are determined by colors of adjacent + segments. + + .. note:: + If target is inclusion of the segment in powerline upstream used divider + highlight group must be specified in the segment documentation in the + form:: + + Divider highlight group used: ``group``. + + This text must not wrap and all divider highlight group names are + supposed to end with ``:divider``: e.g. ``cwd:divider``. + +``gradient_level`` + First and the only key that may not be specified in user configuration. It + determines which color should be used for this segment when one of the + highlighting groups specified by :ref:`highlight_groups + <dev-segments-highlight_groups>` was defined to use the color gradient. + + This key may have any value from 0 to 100 inclusive, value is supposed to be + an ``int`` or ``float`` instance. + + No error occurs if segment has this key, but no used highlight groups use + gradient color. + +``_*`` + Keys starting with underscore are reserved for powerline and must not be + returned. + +``__*`` + Keys starting with two underscores are reserved for the segment functions, + specifically for :ref:`expand function <dev-segments-expand>`. + +.. _dev-segments-segment: + +Segment dictionary +================== + +Segment dictionary contains the following keys: + +* All keys returned by segment function (if it was used). + +* All of the following keys: + + ``name`` + Segment name: value of the :ref:`name key <config-themes-seg-name>` or + function name (last component of the :ref:`function key + <config-themes-seg-function>`). May be ``None``. + + ``type`` + :ref:`Segment type <config-themes-seg-type>`. Always represents actual type + and is never ``None``. + + ``highlight_groups``, ``divider_highlight_group`` + Used highlight groups. May be ``None``. + + ``highlight_group_prefix`` + If this key is present then given prefix will be prepended to each highlight + group (both regular and divider) used by this segment in a form + ``{prefix}:{group}`` (note the colon). This key is mostly useful for + :ref:`segment listers <dev-listers>`. + + .. _dev-segments-seg-around: + + ``before``, ``after`` + Value of :ref:`before <config-themes-seg-before>` or :ref:`after + <config-themes-seg-after>` configuration options. May be ``None`` as well as + an empty string. + + ``contents_func`` + Function used to get segment contents. May be ``None``. + + .. _dev-segments-seg-contents: + + ``contents`` + Actual segment contents, excluding dividers and :ref:`before/after + <dev-segments-seg-around>`. May be ``None``. + + ``priority`` + :ref:`Segment priority <config-themes-seg-priority>`. May be ``None`` for no + priority (such segments are always shown). + + ``draw_soft_divider``, ``draw_hard_divider``, ``draw_inner_divider`` + :ref:`Divider control flags <dev-segments-draw_inner_divider>`. + + ``side`` + Segment side: ``right`` or ``left``. + + ``display_condition`` + Contains function that takes three position parameters: + :py:class:`powerline.PowerlineLogger` instance, :ref:`segment_info + <dev-segments-info>` dictionary and current mode and returns either ``True`` + or ``False`` to indicate whether particular segment should be processed. + + This key is constructed based on :ref:`exclude_/include_modes keys + <config-themes-seg-exclude_modes>` and :ref:`exclude_/include_function keys + <config-themes-seg-exclude_function>`. + + ``width``, ``align`` + :ref:`Width and align options <config-themes-seg-align>`. May be ``None``. + + ``expand``, ``truncate`` + Partially applied :ref:`expand <dev-segments-expand>` or :ref:`truncate + <dev-segments-truncate>` function. Accepts ``pl``, ``amount`` and + ``segment`` positional parameters, keyword parameters from :ref:`args + <config-themes-seg-args>` key were applied. + + ``startup`` + Partially applied :ref:`startup function <dev-segments-startup>`. Accepts + ``pl`` and ``shutdown_event`` positional parameters, keyword parameters from + :ref:`args <config-themes-seg-args>` key were applied. + + ``shutdown`` + :ref:`Shutdown function <dev-segments-shutdown>`. Accepts no argument. + +Segments layout +=============== + +Powerline segments are all located in one of the ``powerline.segments`` +submodules. For extension-specific segments ``powerline.segments.{ext}`` module +should be used (e.g. ``powerline.segments.shell``), for extension-agnostic there +is ``powerline.segments.common``. + +Plugin-specific segments (currently only those that are specific to vim plugins) +should live in ``powerline.segments.{ext}.plugin.{plugin_name}``: e.g. +``powerline.segments.vim.plugin.gundo``. + +.. _dev-segments-info: + +Segment information used in various extensions +============================================== + +Each ``segment_info`` value should be a dictionary with at least the following +keys: + +``environ`` + Current environment, may be an alias to ``os.environ``. Is guaranteed to + have ``__getitem__`` and ``get`` methods and nothing more. + + .. warning:: + ``os.environ`` must not ever be used: + + * If segment is run in the daemon this way it will get daemon’s + environment which is not correct. + * If segment is run in Vim or in zsh with libzpython ``os.environ`` will + contain Vim or zsh environ *at the moment Python interpreter was + loaded*. + +``getcwd`` + Function that returns current working directory being called with no + arguments. ``os.getcwd`` must not be used for the same reasons the use of + ``os.environ`` is forbidden, except that current working directory is valid + in Vim and zsh (but not in daemon). + +``home`` + Current home directory. May be false. + +.. _dev-segment_info-vim: + +Vim +--- + +Vim ``segment_info`` argument is a dictionary with the following keys: + +``window`` + ``vim.Window`` object. ``vim.current.window`` or ``vim.windows[number - 1]`` + may be used to obtain such object. May be a false object, in which case any + of this object’s properties must not be used. + +``winnr`` + Window number. Same as ``segment_info['window'].number`` *assuming* Vim is + new enough for ``vim.Window`` object to have ``number`` attribute. + +``window_id`` + Internal powerline window id, unique for each newly created window. It is + safe to assume that this ID is hashable and supports equality comparison, + but no other assumptions about it should be used. Currently uses integer + numbers incremented each time window is created. + +``buffer`` + ``vim.Buffer`` object. One may be obtained using ``vim.current.buffer``, + ``segment_info['window'].buffer`` or ``vim.buffers[some_number]``. Note that + in the latter case depending on vim version ``some_number`` may be ``bufnr`` + or the internal Vim buffer index which is *not* buffer number. For this + reason to get ``vim.Buffer`` object other then stored in ``segment_info`` + dictionary iteration over ``vim.buffers`` and checking their ``number`` + attributes should be performed. + +``bufnr`` + Buffer number. + +``tabpage`` + ``vim.Tabpage`` object. One may be obtained using ``vim.current.tabpage`` or + ``vim.tabpages[number - 1]``. May be a false object, in which case no + object’s properties can be used. + +``tabnr`` + Tabpage number. + +``mode`` + Current mode. + +``encoding`` + Value of ``&encoding`` from the time when powerline was initialized. It + should be used to convert return values. + +.. note:: + Segment generally should not assume that it is run for the current window, + current buffer or current tabpage. “Current window” and “current buffer” + restrictions may be ignored if ``window_cached`` decorator is used, “current + tabpage” restriction may be safely ignored if segment is not supposed to be + used in tabline. + +.. warning:: + Powerline is being tested with vim-7.0.112 (some minor sanity check) and + latest Vim. This means that most of the functionality like + ``vim.Window.number``, ``vim.*.vars``, ``vim.*.options`` or even ``dir(vim + object)`` should be avoided in segments that want to be included in the + upstream. + +Shell +----- + +``args`` + Parsed shell arguments: a ``argparse.Namespace`` object. Check out + ``powerline-render --help`` for the list of all available arguments. + Currently it is expected to contain at least the following attributes: + + ``last_exit_code`` + Exit code returned by last shell command. Is either one integer, + ``sig{name}`` or ``sig{name}+core`` (latter two are only seen in ``rc`` + shell). + + ``last_pipe_status`` + List of exit codes returned by last programs in the pipe or some false + object. Only available in ``zsh`` and ``rc``. Is a list of either + integers, ``sig{name}`` or ``sig{name}+core`` (latter two are only seen + in ``rc`` shell). + + ``jobnum`` + Number of background jobs. + + ``renderer_arg`` + Dictionary containing some keys that are additional arguments used by + shell bindings. *This attribute must not be used directly*: all + arguments from this dictionary are merged with ``segment_info`` + dictionary. Known to have at least the following keys: + + ``client_id`` + Identifier unique to one shell instance. Is used to record instance + state by powerline daemon. In tmux this is the same as :ref:`pane_id + <dev-seginfo-shell-renarg-pane_id>`. + + It is not guaranteed that existing client ID will not be retaken + when old shell with this ID quit: usually process PID is used as + a client ID. + + It is also not guaranteed that client ID will be process PID, number + or something else at all. It is guaranteed though that client ID + will be some hashable object which supports equality comparison. + + ``local_theme`` + Local theme that will be used by shell. One should not rely on the + existence of this key. + + .. _dev-seginfo-shell-renarg-pane_id: + + ``pane_id`` + Identifier unique to each tmux pane. Is always an integer, optional. + Obtained by using ``tmux display -p '#D'``, then all leading spaces + and per cent signs are stripped and the result is converted into an + integer. + + Other keys, if any, are specific to segments. + +Ipython +------- + +``ipython`` + Some object which has ``prompt_count`` attribute. Currently it is guaranteed + to have only this attribute. + + Attribute ``prompt_count`` contains the so-called “history count” + (equivalent to ``\N`` in ``in_template``). + +Pdb +--- + +``pdb`` + Currently active :py:class:`pdb.Pdb` instance. + +``curframe`` + Frame which will be run next. Note: due to the existence of + :py:func:`powerline.listers.pdb.frame_lister` one must not use + ``segment_info['pdb'].curframe``. + +``initial_stack_length`` + Equal to the length of :py:attr:`pdb.Pdb.stack` at the first invocation of + the prompt decremented by one. + +i3wm +---- + +``mode`` + Currently active i3 mode (as a string). + +``output`` + ``xrandr`` output name currently drawing to. Currently only available + in lemonbar bindings. + +``workspace`` + dictionary containing the workspace name under the key ``"name"`` and + boolean values for the ``"visible"``, ``"urgent"`` and ``"focused"`` + keys, indicating the state of the workspace. Currently only provided by + the :py:func:`powerline.listers.i3wm.workspace_lister` lister. + +Segment class +============= + +.. autoclass:: powerline.segments.Segment + :members: + +PowerlineLogger class +===================== + +.. autoclass:: powerline.PowerlineLogger + :members: + :undoc-members: diff --git a/docs/source/develop/tips-and-tricks.rst b/docs/source/develop/tips-and-tricks.rst new file mode 100644 index 0000000..c850659 --- /dev/null +++ b/docs/source/develop/tips-and-tricks.rst @@ -0,0 +1,21 @@ +**************************************** +Tips and tricks for powerline developers +**************************************** + +Profiling powerline in Vim +========================== + +Given that current directory is the root of the powerline repository the +following command may be used: + +.. code-block:: sh + + vim --cmd 'let g:powerline_pyeval="powerline#debug#profile_pyeval"' \ + --cmd 'set rtp=powerline/bindings/vim' \ + -c 'runtime! plugin/powerline.vim' \ + {other arguments if needed} + +After some time run ``:WriteProfiling {filename}`` Vim command. Currently this +only works with recent Vim and python-2*. It should be easy to modify +:file:`powerline/bindings/vim/autoload/powerline/debug.vim` to suit other +needs. diff --git a/docs/source/index.rst b/docs/source/index.rst new file mode 100644 index 0000000..9a4d84b --- /dev/null +++ b/docs/source/index.rst @@ -0,0 +1,28 @@ +********* +Powerline +********* + +.. toctree:: + :maxdepth: 3 + :glob: + + overview + installation + usage + configuration + develop + troubleshooting + tips-and-tricks + license-and-credits + +.. toctree:: + :maxdepth: 2 + + commands + +Indices and tables +================== + +* :ref:`genindex` +* :ref:`modindex` +* :ref:`search` diff --git a/docs/source/installation.rst b/docs/source/installation.rst new file mode 100644 index 0000000..eb40ed0 --- /dev/null +++ b/docs/source/installation.rst @@ -0,0 +1,132 @@ +************ +Installation +************ + +Generic requirements +==================== + +* Python 2.6 or later, 3.2 or later, PyPy 2.0 or later, PyPy3 2.3 or later. It + is the only non-optional requirement. + + .. warning: + It is highly advised to use UCS-4 version of Python because UCS-2 version + uses significantly slower text processing (length determination and + non-printable character replacement) functions due to the need of + supporting unicode characters above U+FFFF which are represented as + surrogate pairs. This price will be paid even if configuration has no such + characters. + +* C compiler. Required to build powerline client on linux. If it is not present + then powerline will fall back to shell script or python client. +* ``socat`` program. Required for shell variant of client which runs a bit + faster than python version of the client, but still slower than C version. +* ``psutil`` python package. Required for some segments like cpu_percent. Some + segments have linux-only fallbacks for ``psutil`` functionality. +* ``hglib`` python package *and* mercurial executable. Required to work with + mercurial repositories. +* ``pygit2`` python package or ``git`` executable. Required to work with ``git`` + repositories. +* ``bzr`` python package (note: *not* standalone executable). Required to work + with bazaar repositories. +* ``pyuv`` python package. Required for :ref:`libuv-based watcher + <config-common-watcher>` to work. +* ``i3ipc`` python package. Required for i3wm bindings and segments. +* ``xrandr`` program. Required for the multi-monitor lemonbar binding and the + :py:func:`powerline.listers.i3wm.output_lister`. + +.. note:: + Until bazaar supports Python-3 or PyPy powerline will not support + repository information when running in these interpreters. + +.. _repository-root: + +.. note:: + When using ``pip``, the ``{repository_root}`` directory referenced in + documentation may be found using ``pip show powerline-status``. In the output + of ``pip show`` there is a line like ``Location: {path}``, that ``{path}`` is + ``{repository_root}``. Unless it is ``--editable`` installation this is only + applicable for ``{repository_root}/powerline/…`` paths: something like + ``{repository_root}/scripts/powerline-render`` is not present. + + When using other packages referenced paths may not exist, in this case refer + to package documentation. + +Pip installation +================ + +Due to a naming conflict with an unrelated project powerline is available on +PyPI under the ``powerline-status`` name: + +.. code-block:: sh + + pip install powerline-status + +is the preferred method because this will get the latest release. To get current +development version + +.. code-block:: sh + + pip install --user git+git://github.com/powerline/powerline + +may be used. If powerline was already checked out into some directory + +.. code-block:: sh + + pip install --user --editable={path_to_powerline} + +is useful, but note that in this case ``pip`` will not install ``powerline`` +executable and something like + +.. code-block:: sh + + ln -s {path_to_powerline}/scripts/powerline ~/.local/bin + +will have to be done (:file:`~/.local/bin` should be replaced with some path +present in ``$PATH``). + +.. note:: + If ISP blocks git protocol for some reason github also provides ``ssh`` + (``git+ssh://git@github.com/powerline/powerline``) and ``https`` + (``git+https://github.com/powerline/powerline``) protocols. ``git`` protocol + should be the fastest, but least secure one though. + +Fonts installation +================== + +Powerline uses several special glyphs to get the arrow effect and some custom +symbols for developers. This requires having either a symbol font or a patched +font installed in the system. The used application (e.g. terminal emulator) must +also either be configured to use patched fonts (in some cases even support it +because custom glyphs live in private use area which some applications reserve +for themselves) or support fontconfig for powerline to work properly with +powerline-specific glyphs. + +:ref:`24-bit color support <config-common-term_truecolor>` may be enabled if +used terminal emulator supports it (see :ref:`the terminal emulator support +matrix <usage-terminal-emulators>`). + +There are basically two ways to get powerline glyphs displayed: use +:file:`PowerlineSymbols.otf` font as a fallback for one of the existing fonts or +install a patched font. + +.. _installation-patched-fonts: + +Patched fonts +------------- + +This method is the fallback method and works for every terminal. + +Download the font from `powerline-fonts`_. If preferred font can’t be found in +the `powerline-fonts`_ repo, then patching the preferred font is needed instead. + +.. _powerline-fonts: https://github.com/powerline/fonts + +After downloading this font refer to platform-specific instructions. + +Installation on various platforms +================================= + +.. toctree:: + + Linux <installation/linux> + OS X <installation/osx> diff --git a/docs/source/installation/linux.rst b/docs/source/installation/linux.rst new file mode 100644 index 0000000..95b6636 --- /dev/null +++ b/docs/source/installation/linux.rst @@ -0,0 +1,110 @@ +********************* +Installation on Linux +********************* + +The following distribution-specific packages are officially supported, and they +provide an easy way of installing and upgrading Powerline. The packages will +automatically do most of the configuration. + +* `Arch Linux (AUR), Python 2 version <https://aur.archlinux.org/packages/python2-powerline-git/>`_ +* `Arch Linux (AUR), Python 3 version <https://aur.archlinux.org/packages/python-powerline-git/>`_ +* Gentoo Live ebuild in `raiagent <https://github.com/leycec/raiagent>`_ overlay +* Powerline package is available for Debian starting from Wheezy (via `backports + <https://packages.debian.org/wheezy-backports/powerline>`_). Use `search + <https://packages.debian.org/search?keywords=powerline&searchon=names&suite=all§ion=all>`_ + to get more information. + +If used distribution does not have an official package installation guide below +should be followed: + +1. Install Python 3.2+, Python 2.6+ or PyPy and ``pip`` with ``setuptools``. + This step is distribution-specific, so no commands provided. +2. Install Powerline using one of the following commands: + + .. code-block:: sh + + pip install --user powerline-status + + will get the latest release version and + + .. code-block:: sh + + pip install --user git+git://github.com/powerline/powerline + + will get the latest development version. + + .. note:: Due to the naming conflict with an unrelated project powerline is + named ``powerline-status`` in PyPI. + + .. note:: + Powerline developers should be aware that``pip install --editable`` does + not currently fully work. Installation performed this way are missing + ``powerline`` executable that needs to be symlinked. It will be located in + ``scripts/powerline``. + +Fonts installation +================== + +Fontconfig +---------- + +This method only works on Linux. It’s the second recommended method if terminal +emulator supports it as patching fonts is not needed, and it generally works +with any coding font. + +#. Download the latest version of the symbol font and fontconfig file:: + + wget https://github.com/powerline/powerline/raw/develop/font/PowerlineSymbols.otf + wget https://github.com/powerline/powerline/raw/develop/font/10-powerline-symbols.conf + +#. Move the symbol font to a valid X font path. Valid font paths can be + listed with ``xset q``:: + + mv PowerlineSymbols.otf ~/.local/share/fonts/ + +#. Update font cache for the path the font was moved to (root privileges may be + needed to update cache for the system-wide paths):: + + fc-cache -vf ~/.local/share/fonts/ + +#. Install the fontconfig file. For newer versions of fontconfig the config + path is ``~/.config/fontconfig/conf.d/``, for older versions it’s + ``~/.fonts.conf.d/``:: + + mv 10-powerline-symbols.conf ~/.config/fontconfig/conf.d/ + +If custom symbols still cannot be seen then try closing all instances of the +terminal emulator. Restarting X may be needed for the changes to take effect. + +If custom symbols *still* can’t be seen, double-check that the font have been +installed to a valid X font path, and that the fontconfig file was installed to +a valid fontconfig path. Alternatively try to install a :ref:`patched font +<installation-patched-fonts>`. + +Patched font installation +------------------------- + +This is the preferred method, but it is not always available because not all +fonts were patched and not all fonts *can* be patched due to licensing issues. + +After downloading font the following should be done: + +#. Move the patched font to a valid X font path. Valid font paths can be + listed with ``xset q``:: + + mv 'SomeFont for Powerline.otf' ~/.local/share/fonts/ + +#. Update font cache for the path the font was moved to (root privileges may be + needed for updating font cache for some paths):: + + fc-cache -vf ~/.local/share/fonts/ + +After installing patched font terminal emulator, GVim or whatever application +powerline should work with must be configured to use the patched font. The +correct font usually ends with *for Powerline*. + +If custom symbols cannot be seen then try closing all instances of the terminal +emulator. X server may need to be restarted for the changes to take effect. + +If custom symbols *still* can’t be seen then double-check that the font have +been installed to a valid X font path. diff --git a/docs/source/installation/osx.rst b/docs/source/installation/osx.rst new file mode 100644 index 0000000..e520348 --- /dev/null +++ b/docs/source/installation/osx.rst @@ -0,0 +1,67 @@ +******************** +Installation on OS X +******************** + +Python package +============== + +1. Install a proper Python version (see `issue #39 + <https://github.com/powerline/powerline/issues/39>`_ for a discussion + regarding the required Python version on OS X):: + + sudo port select python python27-apple + + Homebrew may be used here:: + + brew install python + + .. note:: + In case :file:`powerline.sh` as a client ``socat`` and ``coreutils`` need + to be installed. ``coreutils`` may be installed using ``brew install + coreutils``. + +2. Install Powerline using one of the following commands: + + .. code-block:: sh + + pip install --user powerline-status + + will get current release version and + + .. code-block:: sh + + pip install --user git+git://github.com/powerline/powerline + + will get latest development version. + + .. warning:: + When using ``brew install`` to install Python one must not supply + ``--user`` flag to ``pip``. + + .. note:: + Due to the naming conflict with an unrelated project powerline is named + ``powerline-status`` in PyPI. + + .. note:: + Powerline developers should be aware that ``pip install --editable`` does + not currently fully work. Installation performed this way are missing + ``powerline`` executable that needs to be symlinked. It will be located in + ``scripts/powerline``. + +Vim installation +================ + +Any terminal vim version with Python 3.2+ or Python 2.6+ support should work, +but MacVim users need to install it using the following command:: + + brew install macvim --env-std --with-override-system-vim + +Fonts installation +================== + +To install patched font double-click the font file in Finder, then click +:guilabel:`Install this font` in the preview window. + +After installing the patched font MacVim or terminal emulator (whatever +application powerline should work with) need to be configured to use the patched +font. The correct font usually ends with *for Powerline*. diff --git a/docs/source/license-and-credits.rst b/docs/source/license-and-credits.rst new file mode 100644 index 0000000..5226669 --- /dev/null +++ b/docs/source/license-and-credits.rst @@ -0,0 +1,31 @@ +******************* +License and credits +******************* + +Powerline is licensed under the `MIT license +<https://raw.github.com/powerline/powerline/develop/LICENSE>`_. + +.. + This document is parsed by powerline_automan.py module. Do not forget to + check that file before altering this one. Specifically it expects + ``Authors`` and ``Contributors`` sections underlined by ``---``, a list of + authors in format ``* `{name} <`` in the “Authors” section and fonts + contributor name in format ``The glyphs in the font patcher are created by + {name},`` in the “Contributors” section. + +Authors +------- + +* `Kim Silkebækken <https://github.com/Lokaltog>`_ +* `Nikolay Pavlov <https://github.com/ZyX-I>`_ +* `Kovid Goyal <https://github.com/kovidgoyal>`_ + +Contributors +------------ + +* `List of contributors + <https://github.com/powerline/powerline/contributors>`_ +* The glyphs in the font patcher are created by Fabrizio Schiavi, creator of + the excellent coding font `Pragmata Pro`_. + +.. _`Pragmata Pro`: http://www.fsd.it/fonts/pragmatapro.htm diff --git a/docs/source/overview.rst b/docs/source/overview.rst new file mode 100644 index 0000000..13b6be3 --- /dev/null +++ b/docs/source/overview.rst @@ -0,0 +1,67 @@ +******** +Overview +******** + +**Powerline is a statusline plugin for vim, and provides statuslines and +prompts for several other applications, including zsh, bash, tmux, IPython, +Awesome, i3 and Qtile.** + +Features +-------- + +* **Extensible and feature rich, written in Python.** Powerline was + completely rewritten in Python to get rid of as much vimscript as + possible. This has allowed much better extensibility, leaner and better + config files, and a structured, object-oriented codebase with no mandatory + third-party dependencies other than a Python interpreter. +* **Stable and testable code base.** Using Python has allowed unit testing + of all the project code. The code is tested to work in Python 2.6+ and + Python 3. +* **Support for prompts and statuslines in many applications.** Originally + created exclusively for vim statuslines, the project has evolved to + provide statuslines in tmux and several WMs, and prompts for shells like + bash/zsh and other applications. It’s simple to write renderers for any + other applications that Powerline doesn’t yet support. +* **Configuration and colorschemes written in JSON.** JSON is + a standardized, simple and easy to use file format that allows for easy + user configuration across all of Powerline’s supported applications. +* **Fast and lightweight, with daemon support for even better performance.** + Although the code base spans a couple of thousand lines of code with no + goal of “less than X lines of code”, the main focus is on good performance + and as little code as possible while still providing a rich set of + features. The new daemon also ensures that only one Python instance is + launched for prompts and statuslines, which provides excellent + performance. + +*But I hate Python / I don’t need shell prompts / this is just too much +hassle for me / what happened to the original vim-powerline project / …* + +You should check out some of the Powerline derivatives. The most lightweight +and feature-rich alternative is currently the `vim-airline +<https://github.com/vim-airline/vim-airline>`_ project. + +Screenshots +----------- + +Vim statusline +^^^^^^^^^^^^^^ + +**Mode-dependent highlighting** + +* .. image:: _static/img/pl-mode-normal.png + :alt: Normal mode +* .. image:: _static/img/pl-mode-insert.png + :alt: Insert mode +* .. image:: _static/img/pl-mode-visual.png + :alt: Visual mode +* .. image:: _static/img/pl-mode-replace.png + :alt: Replace mode + +**Automatic truncation of segments in small windows** + +* .. image:: _static/img/pl-truncate1.png + :alt: Truncation illustration +* .. image:: _static/img/pl-truncate2.png + :alt: Truncation illustration +* .. image:: _static/img/pl-truncate3.png + :alt: Truncation illustration diff --git a/docs/source/powerline_autodoc.py b/docs/source/powerline_autodoc.py new file mode 100644 index 0000000..eba42ed --- /dev/null +++ b/docs/source/powerline_autodoc.py @@ -0,0 +1,64 @@ +# vim:fileencoding=utf-8:noet +from __future__ import (unicode_literals, division, absolute_import, print_function) + +import os + +from inspect import formatargspec + +from sphinx.ext import autodoc + +from powerline.lint.inspect import getconfigargspec +from powerline.segments import Segment +from powerline.lib.unicode import unicode + + +def formatvalue(val): + if type(val) is str: + return '="' + unicode(val, 'utf-8').replace('"', '\\"').replace('\\', '\\\\') + '"' + else: + return '=' + repr(val) + + +class ThreadedDocumenter(autodoc.FunctionDocumenter): + '''Specialized documenter subclass for ThreadedSegment subclasses.''' + @classmethod + def can_document_member(cls, member, membername, isattr, parent): + return (isinstance(member, Segment) or + super(ThreadedDocumenter, cls).can_document_member(member, membername, isattr, parent)) + + def format_args(self): + argspec = getconfigargspec(self.object) + return formatargspec(*argspec, formatvalue=formatvalue).replace('\\', '\\\\') + + +class Repr(object): + def __init__(self, repr_contents): + self.repr_contents = repr_contents + + def __repr__(self): + return '<{0}>'.format(self.repr_contents) + + +class EnvironDocumenter(autodoc.AttributeDocumenter): + @classmethod + def can_document_member(cls, member, membername, isattr, parent): + if type(member) is dict and member.get('environ') is os.environ: + return True + else: + return False + + def import_object(self, *args, **kwargs): + ret = super(EnvironDocumenter, self).import_object(*args, **kwargs) + if not ret: + return ret + self.object = self.object.copy() + if 'home' in self.object: + self.object.update(home=Repr('home directory')) + self.object.update(environ=Repr('environ dictionary')) + return True + + +def setup(app): + autodoc.setup(app) + app.add_autodocumenter(ThreadedDocumenter) + app.add_autodocumenter(EnvironDocumenter) diff --git a/docs/source/powerline_automan.py b/docs/source/powerline_automan.py new file mode 100644 index 0000000..85d241c --- /dev/null +++ b/docs/source/powerline_automan.py @@ -0,0 +1,408 @@ +# vim:fileencoding=utf-8:noet +from __future__ import (unicode_literals, division, absolute_import, print_function) + +import os +import re +import codecs + +from collections import namedtuple +from argparse import REMAINDER + +from functools import reduce + +from docutils.parsers.rst import Directive +from docutils.parsers.rst.directives import unchanged_required +from docutils import nodes + +from powerline.lib.unicode import u + + +AUTHOR_LINE_START = '* `' +GLYPHS_AUTHOR_LINE_START = '* The glyphs in the font patcher are created by ' + + +def get_authors(): + credits_file = os.path.join(os.path.dirname(__file__), 'license-and-credits.rst') + authors = [] + glyphs_author = None + with codecs.open(credits_file, encoding='utf-8') as CF: + section = None + prev_line = None + for line in CF: + line = line[:-1] + if line and not line.replace('-', ''): + section = prev_line + elif section == 'Authors': + if line.startswith(AUTHOR_LINE_START): + authors.append(line[len(AUTHOR_LINE_START):line.index('<')].strip()) + elif section == 'Contributors': + if line.startswith(GLYPHS_AUTHOR_LINE_START): + assert(not glyphs_author) + glyphs_author = line[len(GLYPHS_AUTHOR_LINE_START):line.index(',')].strip() + prev_line = line + return { + 'authors': ', '.join(authors), + 'glyphs_author': glyphs_author, + } + + +class AutoManSubparsers(object): + def __init__(self): + self.parsers = [] + + def add_parser(self, command, *args, **kwargs): + self.parsers.append((command, AutoManParser(*args, **kwargs))) + return self.parsers[-1][1] + + +Argument = namedtuple('Argument', ('names', 'help', 'choices', 'metavar', 'required', 'nargs', 'is_option', 'is_long_option', 'is_short_option', 'multi', 'can_be_joined')) + + +def parse_argument(*args, **kwargs): + is_option = args[0].startswith('-') + is_long_option = args[0].startswith('--') + is_short_option = is_option and not is_long_option + action = kwargs.get('action', 'store') + multi = kwargs.get('action') in ('append',) or kwargs.get('nargs') is REMAINDER + nargs = kwargs.get('nargs', (1 if action in ('append', 'store') else 0)) + return Argument( + names=args, + help=u(kwargs.get('help', '')), + choices=[str(choice) for choice in kwargs.get('choices', [])], + metavar=kwargs.get('metavar') or args[-1].lstrip('-').replace('-', '_').upper(), + required=kwargs.get('required', False) if is_option else ( + kwargs.get('nargs') not in ('?',)), + nargs=nargs, + multi=multi, + is_option=is_option, + is_long_option=is_long_option, + is_short_option=is_short_option, + can_be_joined=(is_short_option and not multi and not nargs) + ) + + +class AutoManGroup(object): + is_short_option = False + is_option = False + is_long_option = False + can_be_joined = False + + def __init__(self): + self.arguments = [] + self.required = False + + def add_argument(self, *args, **kwargs): + self.arguments.append(parse_argument(*args, **kwargs)) + + def add_argument_group(self, *args, **kwargs): + self.arguments.append(AutoManGroup()) + return self.arguments[-1] + + +class SurroundWith(): + def __init__(self, ret, condition, start='[', end=']'): + self.ret = ret + self.condition = condition + self.start = start + self.end = end + + def __enter__(self, *args): + if self.condition: + self.ret.append(nodes.Text(self.start)) + + def __exit__(self, *args): + if self.condition: + self.ret.append(nodes.Text(self.end)) + + +def insert_separators(ret, sep): + for i in range(len(ret) - 1, 0, -1): + ret.insert(i, nodes.Text(sep)) + return ret + + +def format_usage_arguments(arguments, base_length=None): + line = [] + prev_argument = None + arg_indexes = [0] + arguments = arguments[:] + while arguments: + argument = arguments.pop(0) + if isinstance(argument, nodes.Text): + line += [argument] + continue + can_join_arguments = ( + argument.is_short_option + and prev_argument + and prev_argument.can_be_joined + and prev_argument.required == argument.required + ) + if ( + prev_argument + and not prev_argument.required + and prev_argument.can_be_joined + and not can_join_arguments + ): + line.append(nodes.Text(']')) + arg_indexes.append(len(line)) + if isinstance(argument, AutoManGroup): + arguments = ( + [nodes.Text(' (')] + + insert_separators(argument.arguments[:], nodes.Text(' |')) + + [nodes.Text(' )')] + + arguments + ) + else: + if not can_join_arguments: + line.append(nodes.Text(' ')) + with SurroundWith(line, not argument.required and not argument.can_be_joined): + if argument.can_be_joined and not can_join_arguments and not argument.required: + line.append(nodes.Text('[')) + if argument.is_option: + line.append(nodes.strong()) + name = argument.names[0] + if can_join_arguments: + name = name[1:] + # `--` is automatically transformed into – (EN DASH) + # when parsing into HTML. We do not need this. + line[-1] += [nodes.Text(char) for char in name] + elif argument.nargs is REMAINDER: + line.append(nodes.Text('[')) + line.append(nodes.strong()) + line[-1] += [nodes.Text(char) for char in '--'] + line.append(nodes.Text('] ')) + if argument.nargs: + assert(argument.nargs in (1, '?', REMAINDER)) + with SurroundWith( + line, ( + True + if argument.nargs is REMAINDER + else (argument.nargs == '?' and argument.is_option) + ) + ): + if argument.is_long_option: + line.append(nodes.Text('=')) + line.append(nodes.emphasis(text=argument.metavar)) + elif not argument.is_option: + line.append(nodes.strong(text=argument.metavar)) + if argument.multi: + line.append(nodes.Text('…')) + prev_argument = argument + if ( + prev_argument + and prev_argument.can_be_joined + and not prev_argument.required + ): + line.append(nodes.Text(']')) + arg_indexes.append(len(line)) + ret = [] + if base_length is None: + ret = line + else: + length = base_length + prev_arg_idx = arg_indexes.pop(0) + while arg_indexes: + next_arg_idx = arg_indexes.pop(0) + arg_length = sum((len(element.astext()) for element in line[prev_arg_idx:next_arg_idx])) + if length + arg_length > 68: + ret.append(nodes.Text('\n' + (' ' * base_length))) + length = base_length + ret += line[prev_arg_idx:next_arg_idx] + length += arg_length + prev_arg_idx = next_arg_idx + return ret + + +LITERAL_RE = re.compile(r"`(.*?)'") + + +def parse_argparse_text(text): + rst_text = LITERAL_RE.subn(r'``\1``', text)[0] + ret = [] + for i, text in enumerate(rst_text.split('``')): + if i % 2 == 0: + ret.append(nodes.Text(text)) + else: + ret.append(nodes.literal(text=text)) + return ret + + +def flatten_groups(arguments): + for argument in arguments: + if isinstance(argument, AutoManGroup): + for group_argument in flatten_groups(argument.arguments): + yield group_argument + else: + yield argument + + +def format_arguments(arguments): + return [nodes.definition_list( + '', *[ + nodes.definition_list_item( + '', + nodes.term( + # node.Text('') is required because otherwise for some + # reason first name node is seen in HTML output as + # `<strong>abc</strong>`. + '', *([nodes.Text('')] + ( + insert_separators([ + nodes.strong('', '', *[nodes.Text(ch) for ch in name]) + for name in argument.names + ], ', ') + if argument.is_option else + # Unless node.Text('') is here metavar is written in + # bold in the man page. + [nodes.Text(''), nodes.emphasis(text=argument.metavar)] + ) + ( + [] if not argument.is_option or not argument.nargs else + [nodes.Text(' '), nodes.emphasis('', argument.metavar)] + )) + ), + nodes.definition('', nodes.paragraph('', *parse_argparse_text(argument.help or ''))), + ) + for argument in flatten_groups(arguments) + ] + [ + nodes.definition_list_item( + '', + nodes.term( + '', nodes.Text(''), + nodes.strong(text='-h'), + nodes.Text(', '), + nodes.strong('', '', nodes.Text('-'), nodes.Text('-help')), + ), + nodes.definition('', nodes.paragraph('', nodes.Text('Display help and exit.'))) + ) + ] + )] + + +def format_subcommand_usage(arguments, subcommands, progname, base_length): + return reduce((lambda a, b: a + reduce((lambda c, d: c + d), b, [])), [ + [ + [progname] + + format_usage_arguments(arguments) + + [nodes.Text(' '), nodes.strong(text=subcmd)] + + format_usage_arguments(subparser.arguments) + + [nodes.Text('\n')] + for subcmd, subparser in subparsers.parsers + ] + for subparsers in subcommands + ], []) + + +def format_subcommands(subcommands): + return reduce((lambda a, b: a + reduce((lambda c, d: c + d), b, [])), [ + [ + [ + nodes.section( + '', + nodes.title(text='Arguments specific to ' + subcmd + ' subcommand'), + *format_arguments(subparser.arguments), + ids=['subcmd-' + subcmd] + ) + ] + for subcmd, subparser in subparsers.parsers + ] + for subparsers in subcommands + ], []) + + +class AutoManParser(object): + def __init__(self, description=None, help=None): + self.description = description + self.help = help + self.arguments = [] + self.subcommands = [] + + def add_argument(self, *args, **kwargs): + self.arguments.append(parse_argument(*args, **kwargs)) + + def add_subparsers(self): + self.subcommands.append(AutoManSubparsers()) + return self.subcommands[-1] + + def add_mutually_exclusive_group(self): + self.arguments.append(AutoManGroup()) + return self.arguments[-1] + + def automan_usage(self, prog): + block = nodes.literal_block() + progname = nodes.strong() + progname += [nodes.Text(prog)] + base_length = len(prog) + if self.subcommands: + block += format_subcommand_usage(self.arguments, self.subcommands, progname, base_length) + else: + block += [progname] + block += format_usage_arguments(self.arguments, base_length) + return [block] + + def automan_description(self): + ret = [] + if self.help: + ret += parse_argparse_text(self.help) + ret += format_arguments(self.arguments) + format_subcommands(self.subcommands) + return ret + + +class AutoMan(Directive): + required_arguments = 1 + optional_arguments = 0 + option_spec = dict(prog=unchanged_required, minimal=bool) + has_content = False + + def run(self): + minimal = self.options.get('minimal') + module = self.arguments[0] + template_args = {} + template_args.update(get_authors()) + get_argparser = __import__(str(module), fromlist=[str('get_argparser')]).get_argparser + parser = get_argparser(AutoManParser) + if minimal: + container = nodes.container() + container += parser.automan_usage(self.options['prog']) + container += parser.automan_description() + return [container] + synopsis_section = nodes.section( + '', + nodes.title(text='Synopsis'), + ids=['synopsis-section'], + ) + synopsis_section += parser.automan_usage(self.options['prog']) + description_section = nodes.section( + '', nodes.title(text='Description'), + ids=['description-section'], + ) + description_section += parser.automan_description() + author_section = nodes.section( + '', nodes.title(text='Author'), + nodes.paragraph( + '', + nodes.Text('Written by {authors} and contributors. The glyphs in the font patcher are created by {glyphs_author}.'.format( + **get_authors() + )) + ), + ids=['author-section'] + ) + issues_url = 'https://github.com/powerline/powerline/issues' + reporting_bugs_section = nodes.section( + '', nodes.title(text='Reporting bugs'), + nodes.paragraph( + '', + nodes.Text('Report {prog} bugs to '.format( + prog=self.options['prog'])), + nodes.reference( + issues_url, issues_url, + refuri=issues_url, + internal=False, + ), + nodes.Text('.'), + ), + ids=['reporting-bugs-section'] + ) + return [synopsis_section, description_section, author_section, reporting_bugs_section] + + +def setup(app): + app.add_directive('automan', AutoMan) diff --git a/docs/source/tips-and-tricks.rst b/docs/source/tips-and-tricks.rst new file mode 100644 index 0000000..0af780e --- /dev/null +++ b/docs/source/tips-and-tricks.rst @@ -0,0 +1,110 @@ +*************** +Tips and tricks +*************** + +Vim +=== + +Useful settings +--------------- + +You may find the following vim settings useful when using the Powerline +statusline: + +.. code-block:: vim + + set laststatus=2 " Always display the statusline in all windows + set showtabline=2 " Always display the tabline, even if there is only one tab + set noshowmode " Hide the default mode text (e.g. -- INSERT -- below the statusline) + +.. _tips-and-tricks-vscode: + +VS-Code +======= + +Useful settings +--------------- + +To make powerline work in the internal terminal, add the following settings; +where the shell command needs to be adjusted according to your preferred shell. + +.. code-block:: json + + "terminal.integrated.shell.linux": "/bin/bash" + "terminal.integrated.inheritEnv": true + +.. _tips-and-tricks-urxvt: + +Rxvt-unicode +============ + +Terminus font and urxvt +----------------------- + +The Terminus fonts does not have the powerline glyphs and unless someone submits +a patch to the font author, it is unlikely to happen. However, Andre Klärner +came up with this work around: In your ``~/.Xdefault`` file add the following:: + + urxvt*font: xft:Terminus:pixelsize=12,xft:Inconsolata\ for\ Powerline:pixelsize=12 + +This will allow urxvt to fallback onto the Inconsolata fonts in case it does not +find the right glyphs within the terminus font. + +Source Code Pro font and urxvt +------------------------------ + +Much like the terminus font that was mentioned above, a similar fix can be +applied to the Source Code Pro fonts. + +In the ``~/.Xdefaults`` add the following:: + + URxvt*font: xft:Source\ Code\ Pro\ Medium:pixelsize=13:antialias=true:hinting=true,xft:Source\ Code\ Pro\ Medium:pixelsize=13:antialias=true:hinting=true + +I noticed that Source Code Pro has the glyphs there already, but the pixel size +of the fonts play a role in whether or not the > or the < separators showing up +or not. Using font size 12, glyphs on the right hand side of the powerline are +present, but the ones on the left don’t. Pixel size 14, brings the reverse +problem. Font size 13 seems to work just fine. + +Reloading powerline after update +================================ + +Once you have updated powerline you generally have the following options: + +#. Restart the application you are using it in. This is the safest one. Will not + work if the application uses ``powerline-daemon``. +#. For shell and tmux bindings (except for zsh with libzpython): do not do + anything if you do not use ``powerline-daemon``, run ``powerline-daemon + --replace`` if you do. +#. Use powerline reloading feature. + + .. warning:: + This feature is an unsafe one. It is not guaranteed to work always, it may + render your Python constantly error out in place of displaying powerline + and sometimes may render your application useless, forcing you to + restart. + + *Do not report any bugs occurred when using this feature unless you know + both what caused it and how this can be fixed.* + + * When using zsh with libzpython use + + .. code-block:: bash + + powerline-reload + + .. note:: This shell function is only defined when using libzpython. + + * When using IPython use + + :: + + %powerline reload + + * When using Vim use + + .. code-block:: Vim + + py powerline.reload() + " or (depending on Python version you are using) + py3 powerline.reload() diff --git a/docs/source/troubleshooting.rst b/docs/source/troubleshooting.rst new file mode 100644 index 0000000..30f5d4c --- /dev/null +++ b/docs/source/troubleshooting.rst @@ -0,0 +1,329 @@ +*************** +Troubleshooting +*************** + +System-specific issues +====================== + +.. toctree:: + + Linux <troubleshooting/linux> + OS X <troubleshooting/osx> + +Common issues +============= + +After an update something stopped working +----------------------------------------- + +Assuming powerline was working before update and stopped only after there are +two possible explanations: + +* You have more then one powerline installation (e.g. ``pip`` and ``Vundle`` + installations) and you have updated only one. +* Update brought some bug to powerline. + +In the second case you, of course, should report the bug to `powerline bug +tracker <https://github.com/powerline/powerline>`_. In the first you should +make sure you either have only one powerline installation or you update all of +them simultaneously (beware that in the second case you are not supported). To +diagnose this problem you may do the following: + +#) If this problem is observed within the shell make sure that + + .. code-block:: sh + + python -c 'import powerline; print (powerline.__file__)' + + which should report something like + :file:`/usr/lib64/python2.7/site-packages/powerline/__init__.pyc` (if + powerline is installed system-wide) or + :file:`/home/USER/.../powerline/__init__.pyc` (if powerline was cloned + somewhere, e.g. in :file:`/home/USER/.vim/bundle/powerline`) reports the same + location you use to source in your shell configuration: in first case it + should be some location in :file:`/usr` (e.g. + :file:`/usr/share/zsh/site-contrib/powerline.zsh`), in the second it should + be something like + :file:`/home/USER/.../powerline/bindings/zsh/powerline.zsh`. If this is true + it may be a powerline bug, but if locations do not match you should not + report the bug until you observe it on configuration where locations do + match. +#) If this problem is observed specifically within bash make sure that you clean + ``$POWERLINE_COMMAND`` and ``$PROMPT_COMMAND`` environment variables on + startup or, at least, that it was cleaned after update. While different + ``$POWERLINE_COMMAND`` variable should not cause any troubles most of time + (and when it will cause troubles are rather trivial) spoiled + ``$PROMPT_COMMAND`` may lead to strange error messages or absence of exit + code reporting. + + These are the sources which may keep outdated environment variables: + + * Any command launched from any application inherits its environment unless + callee explicitly requests to use specific environment. So if you did + ``exec bash`` after update it is rather unlikely to fix the problem. + * More interesting: `tmux` is a client-server application, it keeps one + server instance per one user. You probably already knew that, but there is + an interesting consequence: once `tmux` server was started it inherits its + environment from the callee and keeps it *forever* (i.e. until server is + killed). This environment is then inherited by applications you start with + ``tmux new-session``. Easiest solution is to kill tmux with ``tmux + kill-server``, but you may also use ``tmux set-environment -u`` to unset + offending variables. + * Also check `When using z powerline shows wrong number of jobs`_: though + this problem should not be seen after update only, it contains another + example of ``$PROMPT_COMMAND`` spoiling results. + +#) If this problem is observed within the vim instance you should check out the + output of the following Ex mode commands + + .. code-block:: vim + + python import powerline as pl ; print (pl.__file__) + python3 import powerline as pl ; print (pl.__file__) + + One (but not both) of them will most likely error out, this is OK. The same + rules apply as in the 1), but in place of sourcing you should seek for the + place where you modify `runtimepath` vim option. If you install powerline + using `VAM <https://github.com/MarcWeber/vim-addon-manager>`_ then no + explicit modifications of runtimpath were performed in your vimrc + (runtimepath is modified by VAM in this case), but powerline will be placed + in :file:`{plugin_root_dir}/powerline` where `{plugin_root_dir}` is stored in + VAM settings dictionary: do `echo g:vim_addon_manager.plugin_root_dir`. + +There is a hint if you want to place powerline repository somewhere, but still +make powerline package importable anywhere: use + + .. code-block:: sh + + pip install --user --editable path/to/powerline + +Tmux/screen-related issues +========================== + +I’m using tmux and Powerline looks like crap, what’s wrong? +----------------------------------------------------------- + +* You need to tell tmux that it has 256-color capabilities. Add this to your + :file:`.tmux.conf` to solve this issue:: + + set -g default-terminal "screen-256color" +* If you’re using iTerm2, make sure that you have enabled the setting + :guilabel:`Set locale variables automatically` in :menuselection:`Profiles --> + Terminal --> Environment`. +* Make sure tmux knows that terminal it is running in support 256 colors. You + may tell it tmux by using ``-2`` option when launching it. + +I’m using tmux/screen and Powerline is colorless +------------------------------------------------ + +* If the above advices do not help, then you need to disable + :ref:`term_truecolor <config-common-term_truecolor>`. +* Alternative: set :ref:`additional_escapes <config-common-additional_escapes>` + to ``"tmux"`` or ``"screen"``. Note that it is known to work perfectly in + screen, but in tmux it may produce ugly spaces. + + .. warning:: + Both tmux and screen are not resending sequences escaped in such a way. Thus + even though additional escaping will work for the last shown prompt, + highlighting will eventually go away when tmux or screen will redraw screen + for some reason. + + E.g. in screen it will go away when you used copy mode and prompt got out of + screen and in tmux it will go away immediately after you press ``<Enter>``. + +In tmux there is a green bar in place of powerline +-------------------------------------------------- + +In order for tmux bindings to work ``powerline-config`` script is required to be +present in ``$PATH``. Alternatively one may define ``$POWERLINE_CONFIG_COMMAND`` +environment variable pointing to the location of the script. *This variable must +be defined prior to launching tmux server and in the environment where server is +started from.* + +Shell issues +============ + +Pipe status segment displays only last value in bash +---------------------------------------------------- + +Make sure that powerline command that sets prompt appears the very first in +``$PROMPT_COMMAND``. To do this ``powerline.sh`` needs to be sourced the very +last, after all other users of ``$PROMPT_COMMAND``. + +Bash prompt stopped updating +---------------------------- + +Make sure that powerline commands appear in ``$PROMPT_COMMAND``: some users of +``$PROMPT_COMMAND`` have a habit of overwriting the value instead of +prepending/appending to it. All powerline commands start with ``_powerline`` or +``powerline``, e.g. ``_powerline_set_prompt``. + +Bash prompt does not show last exit code +---------------------------------------- + +There are two possibilities here: + +* You are using ``default`` theme in place of ``default_leftonly``. Unlike + ``default_leftonly`` ``default`` theme was designed for shells with right + prompt support (e.g. zsh, tcsh, fish) and status in question is supposed to be + shown on the right side which bash cannot display. + +* There is some other user of ``$PROMPT_COMMAND`` which prepended to this + variable, but did not bother keeping the exit code. For the best experience + powerline must appear first in ``$PROMPT_COMMAND`` which may be achieved by + sourcing powerline bindings the last. + + .. note:: + Resourcing bash bindings will not resolve the problem unless you clear + powerline commands from ``$PROMPT_COMMAND`` first. + +When sourcing shell bindings it complains about missing command or file +----------------------------------------------------------------------- + +If you are using ``pip`` based installation do not forget to add pip-specific +executable path to ``$PATH`` environment variable. This path usually looks +something like ``$HOME/.local/bin`` (linux) or +``$HOME/Library/Python/{python_version}/bin`` (OS X). One may check out where +``powerline-config`` script was installed by using ``pip show -f +powerline-status | grep powerline-config`` (does not always work). + +I am suffering bad lags before displaying shell prompt +------------------------------------------------------ + +To get rid of these lags there currently are two options: + +* Run ``powerline-daemon``. Powerline does not automatically start it for you. +* Compile and install ``libzpython`` module that lives in + https://bitbucket.org/ZyX_I/zpython. This variant is zsh-specific. + +Prompt is spoiled after completing files in ksh +----------------------------------------------- + +This is exactly why powerline has official mksh support, but not official ksh +support. If you know the solution feel free to share it in `powerline bug +tracker`_. + +When using z powerline shows wrong number of jobs +------------------------------------------------- + +This happens because `z <https://github.com/rupa/z>`_ is launching some jobs in +the background from ``$POWERLINE_COMMAND`` and these jobs fail to finish before +powerline prompt is run. + +Solution to this problem is simple: be sure that :file:`z.sh` is sourced +strictly after :file:`powerline/bindings/bash/powerline.sh`. This way background +jobs are spawned by `z <https://github.com/rupa/z>`_ after powerline has done +its job. + +When using shell I do not see powerline fancy characters +-------------------------------------------------------- + +If your locale encoding is not unicode (any encoding that starts with “utf” or +“ucs” will work, case is ignored) powerline falls back to ascii-only theme. You +should set up your system to use unicode locale or forget about powerline fancy +characters. + +Urxvt unicode3 and frills +------------------------- + +Make sure that, whatever urxvt package you're installing, both the `unicode3` +and `frills` features are enabled at compile time. Run +``urxvt --help 2>&1 | grep options:`` to get a list of enabled options. +This should contain at least `frills`, `unicode3` and optionally `iso14755` +if you want to input Unicode characters as well. + +Compiler flags example: + + --enable-frills \ + --enable-unicode3 + +As long as your terminal emulator is compiled without unicode rendering, +no amount of configuration will make it display unicode characters. +They're being considered 'unnecessary features', but they add negligible +overhead to the size of the installed package (~100KB). + +Vim issues +========== + +My vim statusline has strange characters like ``^B`` in it! +----------------------------------------------------------- + +* Please add ``set encoding=utf-8`` to your :file:`vimrc`. + +My vim statusline has a lot of ``^`` or underline characters in it! +------------------------------------------------------------------- + +* You need to configure the ``fillchars`` setting to disable statusline + fillchars (see ``:h 'fillchars'`` for details). Add this to your :file:`vimrc` + to solve this issue: + + .. code-block:: vim + + set fillchars+=stl:\ ,stlnc:\ + +My vim statusline is hidden/only appears in split windows! +---------------------------------------------------------- + +* Make sure that you have ``set laststatus=2`` in your :file:`vimrc`. + +My vim statusline is not displayed completely and has too much spaces +--------------------------------------------------------------------- + +* Be sure you have ``ambiwidth`` option set to ``single``. +* Alternative: set :ref:`ambiwidth <config-common-ambiwidth>` to 2, remove fancy + dividers (they suck when ``ambiwidth`` is set to double). + +Powerline loses color after editing vimrc +----------------------------------------- + +If your vimrc has something like + +.. code-block:: vim + + autocmd! BufWritePost ~/.vimrc :source ~/.vimrc + +used to automatically source vimrc after saving it then you must add ``nested`` +after pattern (``vimrc`` in this case): + +.. code-block:: vim + + autocmd! BufWritePost ~/.vimrc nested :source ~/.vimrc + +. Alternatively move ``:colorscheme`` command out of the vimrc to the file which +will not be automatically resourced. + +Observed problem is that when you use ``:colorscheme`` command existing +highlighting groups are usually cleared, including those defined by powerline. +To workaround this issue powerline hooks ``Colorscheme`` event, but when you +source vimrc with ``BufWritePost`` (or any other) event, but without ``nested`` +this event is not launched. See also `autocmd-nested +<http://vimcommunity.bitbucket.org/doc/autocmd.txt.html#autocmd-nested>`_ Vim +documentation. + +Powerline loses color after saving any file +------------------------------------------- + +It may be one of the incarnations of the above issue: specifically minibufexpl +is known to trigger it. If you are using minibufexplorer you should set + +.. code-block:: vim + + let g:miniBufExplForceSyntaxEnable = 1 + +variable so that this issue is not triggered. Complete explanation: + +#. When MBE autocommand is executed it launches ``:syntax enable`` Vim command… +#. … which makes Vim source :file:`syntax/syntax.vim` file … +#. … which in turn sources :file:`syntax/synload.vim` … +#. … which executes ``:colorscheme`` command. Normally this command triggers + ``Colorscheme`` event, but in the first point minibufexplorer did set up + autocommands that miss ``nested`` attribute meaning that no events will be + triggered when processing MBE events. + +.. note:: + This setting was introduced in version 6.3.1 of `minibufexpl + <http://www.vim.org/scripts/script.php?script_id=159>`_ and removed in + version 6.5.0 of its successor `minibufexplorer + <http://www.vim.org/scripts/script.php?script_id=3239>`_. It is highly + advised to use the latter because `minibufexpl`_ was last updated late in + 2004. diff --git a/docs/source/troubleshooting/linux.rst b/docs/source/troubleshooting/linux.rst new file mode 100644 index 0000000..e0493c6 --- /dev/null +++ b/docs/source/troubleshooting/linux.rst @@ -0,0 +1,78 @@ +************************ +Troubleshooting on Linux +************************ + +I can’t see any fancy symbols, what’s wrong? +-------------------------------------------- + +* Make sure that you’ve configured gvim or your terminal emulator to use + a patched font. +* You need to set your ``LANG`` and ``LC_*`` environment variables to + a UTF-8 locale (e.g. ``LANG=en_US.utf8``). Consult your Linux distro’s + documentation for information about setting these variables correctly. +* Make sure that vim is compiled with the ``--with-features=big`` flag. +* If you’re using rxvt-unicode make sure that it’s compiled with the + ``--enable-unicode3`` flag. +* If you’re using xterm make sure you have told it to work with unicode. You may + need ``-u8`` command-line argument, ``uxterm`` shell wrapper that is usually + shipped with xterm for this or ``xterm*utf8`` property set to ``1`` or ``2`` + in ``~/.Xresources`` (applied with ``xrdb``). Note that in case ``uxterm`` is + used configuration is done via ``uxterm*…`` properties and not ``xterm*…``. + + In any case the only absolute requirement is launching xterm with UTF-8 + locale. +* If you are using bitmap font make sure that + :file:`/etc/fonts/conf.d/70-no-bitmaps.conf` does not exist. If it does check + out your distribution documentation to find a proper way to remove it (so that + it won’t reappear after update). E.g. in Gentoo this is:: + + eselect fontconfig disable 70-no-bitmaps.conf + + (currently this only removes the symlink from :file:`/etc/fonts/conf.d`). Also + check out that no other fontconfig file does not have ``rejectfont`` tag that + tells fontconfig to disable bitmap fonts (they are referenced as not + scalable). + +The fancy symbols look a bit blurry or “off”! +--------------------------------------------- + +* Make sure that you have patched all variants of your font (i.e. both the + regular and the bold font files). + +I am seeing strange blocks in place of playing/paused/stopped signs +------------------------------------------------------------------- + +If you are using ``powerline_unicode7`` :ref:`top-level theme +<config-common-default_top_theme>` then symbols for player segments are taken +from U+23F4–U+23FA range which is missing from most fonts. You may fix the issue +by using `Symbola <http://users.teilar.gr/~g1951d/>`_ font (or any other font +which contains these glyphs). + +If your terminal emulator is using fontconfig library then you can create +a fontconfig configuration file with the following contents: + +.. code-block:: xml + + <?xml version="1.0"?> + <!DOCTYPE fontconfig SYSTEM "fonts.dtd"> + + <fontconfig> + <alias> + <family>Terminus</family> + <prefer><family>Symbola</family></prefer> + </alias> + </fontconfig> + +(replace ``Terminus`` with the name of the font you are using). Exact sequence +of actions you need to perform is different across distributions, most likely it +will work if you put the above xml into +:file:`/etc/fonts/conf.d/99-prefer-symbola.conf`. On Gentoo you need to put it +into :file:`/etc/fonts/conf.d/99-prefer-symbola.conf` and run:: + + eselect fontconfig enable 99-prefer-symbola + +. + +.. warning:: + This answer is only applicable if you use ``powerline_unicode7`` theme or if + you configured powerline to use the same characters yourself. diff --git a/docs/source/troubleshooting/osx.rst b/docs/source/troubleshooting/osx.rst new file mode 100644 index 0000000..b61063e --- /dev/null +++ b/docs/source/troubleshooting/osx.rst @@ -0,0 +1,71 @@ +*********************** +Troubleshooting on OS X +*********************** + +I can’t see any fancy symbols, what’s wrong? +-------------------------------------------- + +* If you’re using iTerm2, please update to `this revision + <https://github.com/gnachman/iTerm2/commit/8e3ad6dabf83c60b8cf4a3e3327c596401744af6>`_ + or newer. Also make sure that Preferences>Profiles>Text>Non-ASCII Font is the same as + your main Font. +* You need to set your ``LANG`` and ``LC_*`` environment variables to + a UTF-8 locale (e.g. ``LANG=en_US.utf8``). Consult your Linux distro’s + documentation for information about setting these variables correctly. + +The colors look weird in the default OS X Terminal app! +------------------------------------------------------- + +* The arrows may have the wrong colors if you have changed the “minimum + contrast” slider in the color tab of your OS X settings. +* The default OS X Terminal app is known to have some issues with the + Powerline colors. Please use another terminal emulator. iTerm2 should work + fine. + +The colors look weird in iTerm2! +-------------------------------- + +* The arrows may have the wrong colors if you have changed the “minimum + contrast” slider in the color tab of your OS X settings. +* If you're using transparency, check “Keep background colors opaque”. + +Statusline is getting wrapped to the next line in iTerm2 +-------------------------------------------------------- + +* Turn off “Treat ambigious-width characters as double width” in `Preferences + --> Text`. +* Alternative: remove fancy dividers (they suck in this case), set + :ref:`ambiwidth <config-common-ambiwidth>` to 2. + +I receive a ``NameError`` when trying to use Powerline with MacVim! +------------------------------------------------------------------- + +* Please install MacVim using this command:: + + brew install macvim --env-std --override-system-vim + + Then install Powerline locally with ``pip install --user``, or by + running these commands in the ``powerline`` directory:: + + ./setup.py build + ./setup.py install --user + +I receive an ``ImportError`` when trying to use Powerline on OS X! +------------------------------------------------------------------ + +* This is caused by an invalid ``sys.path`` when using system vim and system + Python. Please try to select another Python distribution:: + + sudo port select python python27-apple + +* See `issue #39 <https://github.com/powerline/powerline/issues/39>`_ for + a discussion and other possible solutions for this issue. + +I receive “FSEventStreamStart: register_with_server: ERROR” with status_colors +------------------------------------------------------------------------------ + +This is `a known <https://github.com/joyent/node/issues/5463>`_ libuv issue that +happens if one is trying to watch too many files. It should be fixed in +libuv-0.12. Until then it is suggested to either disable ``status_colors`` (from +:py:func:`powerline.segments.common.vcs.branch`) or choose stat-based watcher +(will have effectively the same effect as disabling ``status_colors``). diff --git a/docs/source/usage.rst b/docs/source/usage.rst new file mode 100644 index 0000000..5bfd304 --- /dev/null +++ b/docs/source/usage.rst @@ -0,0 +1,88 @@ +***** +Usage +***** + +Application-specific requirements +--------------------------------- + +Vim plugin requirements +^^^^^^^^^^^^^^^^^^^^^^^ + +The vim plugin requires a vim version with Python support compiled in. Presence +of Python support in Vim can be checked by running ``vim --version | grep ++python``. + +If Python support is absent then Vim needs to be compiled with it. To do this +use ``--enable-pythoninterp`` :file:`./configure` flag (Python 3 uses +``--enable-python3interp`` flag instead). Note that this also requires the +related Python headers to be installed. Please consult distribution’s +documentation for details on how to compile and install packages. + +Vim version 7.4 or newer is recommended for performance reasons, but Powerline +supports Vim 7.0.112 and higher. + +Shell prompts requirements +^^^^^^^^^^^^^^^^^^^^^^^^^^ + +Due to fish having incorrect code for prompt width calculations up to version +2.1 and no way to tell that certain sequence of characters has no width +(``%{…%}`` in zsh and ``\[…\]`` in bash prompts serve exactly this purpose) +users that have fish versions below 2.1 are not supported.. + + +WM widgets requirements +^^^^^^^^^^^^^^^^^^^^^^^ + +Awesome is supported starting from version 3.5.1, inclusive. QTile is supported +from version 0.6, inclusive. + +.. _usage-terminal-emulators: + +Terminal emulator requirements +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +Powerline uses several special glyphs to get the arrow effect and some custom +symbols for developers. This requires either a symbol font or a patched font +installed. Used terminal emulator must also support either patched fonts or +fontconfig for Powerline to work properly. + +:ref:`24-bit color support <config-common-term_truecolor>` can also be enabled +if terminal emulator supports it. + +.. table:: Application/terminal emulator feature support matrix + :name: term-feature-support-matrix + + ===================== ======= ===================== ===================== ===================== + Name OS Patched font support Fontconfig support 24-bit color support + ===================== ======= ===================== ===================== ===================== + Gvim Linux |i_yes| |i_no| |i_yes| + iTerm2 OS X |i_yes| |i_no| |i_no| + Konsole Linux |i_yes| |i_yes| |i_yes| + lxterminal Linux |i_yes| |i_yes| |i_no| + MacVim OS X |i_yes| |i_no| |i_yes| + rxvt-unicode Linux |i_partial| [#]_ |i_no| |i_no| + st Linux |i_yes| |i_yes| |i_yes| [#]_ + Terminal.app OS X |i_yes| |i_no| |i_no| + libvte-based [#]_ Linux |i_yes| |i_yes| |i_yes| [#]_ + xterm Linux |i_yes| |i_no| |i_partial| [#]_ + fbterm Linux |i_yes| |i_yes| |i_no| + ===================== ======= ===================== ===================== ===================== + +.. |i_yes| image:: _static/img/icons/tick.png +.. |i_no| image:: _static/img/icons/cross.png +.. |i_partial| image:: _static/img/icons/error.png + +.. [#] Must be compiled with ``--enable-unicode3`` for the patched font to work. +.. [#] Since version 0.5. +.. [#] Including XFCE terminal and GNOME terminal. +.. [#] Since version 0.36. +.. [#] Uses nearest color from 8-bit palette. + +Plugins +------- + +.. toctree:: + + usage/shell-prompts + usage/wm-widgets + usage/other diff --git a/docs/source/usage/other.rst b/docs/source/usage/other.rst new file mode 100644 index 0000000..ff0ccae --- /dev/null +++ b/docs/source/usage/other.rst @@ -0,0 +1,224 @@ +************* +Other plugins +************* + +.. _vim-vimrc: + +Vim statusline +============== + +If installed using pip just add + +.. code-block:: vim + + python from powerline.vim import setup as powerline_setup + python powerline_setup() + python del powerline_setup + +(replace ``python`` with ``python3`` if appropriate) to the :file:`vimrc`. + +.. note:: + Status line will not appear by default when there is only a single window + displayed. Run ``:h 'laststatus'`` in Vim for more information. + +If the repository was just cloned the following line needs to be added to the +:file:`vimrc`: + +.. code-block:: vim + + set rtp+={repository_root}/powerline/bindings/vim + +where ``{repository_root}`` is the absolute path to the Powerline installation +directory (see :ref:`repository root <repository-root>`). + +If pathogen is used and Powerline functionality is not needed outside of Vim +then it is possible to simply add Powerline as a bundle and point the path above +to the Powerline bundle directory, e.g. +:file:`~/.vim/bundle/powerline/powerline/bindings/vim`. + +Vundle and NeoBundle users may instead use + +.. code-block:: vim + + Bundle 'powerline/powerline', {'rtp': 'powerline/bindings/vim/'} + +(NeoBundle users need ``NeoBundle`` in place of ``Bundle``, otherwise setup is +the same). + +Vim-addon-manager setup is even easier because it is not needed to write this +big path or install anything by hand: ``powerline`` can be installed and +activated just like any other plugin using + +.. code-block:: vim + + call vam#ActivateAddons(['powerline']) + +.. warning:: + *Never* install powerline with pathogen/VAM/Vundle/NeoBundle *and* with pip. + If powerline functionality is needed in applications other then Vim then + system-wide installation (in case used OS distribution has powerline + package), pip-only or ``pip install --editable`` kind of installation + performed on the repository installed by Vim plugin manager should be used. + + No issues are accepted in powerline issue tracker for double pip/non-pip + installations, especially if these issues occur after update. + +.. note:: + If supplied :file:`powerline.vim` file is used to load powerline there are + additional configuration variables available: ``g:powerline_pycmd`` and + ``g:powerline_pyeval``. First sets command used to load powerline: expected + values are ``"py"`` and ``"py3"``. Second sets function used in statusline, + expected values are ``"pyeval"`` and ``"py3eval"``. + + If ``g:powerline_pycmd`` is set to the one of the expected values then + ``g:powerline_pyeval`` will be set accordingly. If it is set to some other + value then ``g:powerline_pyeval`` must also be set. Powerline will not check + that Vim is compiled with Python support if ``g:powerline_pycmd`` is set to + an unexpected value. + + These values are to be used to specify the only Python that is to be loaded + if both versions are present: Vim may disable loading one python version if + other was already loaded. They should also be used if two python versions + are able to load simultaneously, but powerline was installed only for + python-3 version. + +Tmux statusline +=============== + +Add the following lines to :file:`.tmux.conf`, where ``{repository_root}`` is +the absolute path to the Powerline installation directory (see :ref:`repository +root <repository-root>`):: + + source "{repository_root}/powerline/bindings/tmux/powerline.conf" + +.. note:: + The availability of the ``powerline-config`` command is required for + powerline support. The location of this script may be specified via + the ``$POWERLINE_CONFIG_COMMAND`` environment variable. + +.. note:: + It is advised to run ``powerline-daemon`` before adding the above line to + tmux.conf. To do so add:: + + run-shell "powerline-daemon -q" + + to :file:`.tmux.conf`. + +.. warning:: + Segments which depend on current working directory (e.g. + :py:func:`powerline.segments.common.vcs.branch`) require also setting up + :ref:`shell bindings <usage-shell>`. It is not required to use powerline + shell prompt, :ref:`components setting <config-ext-components>` allows to + set up only powerline bindings for tmux without altering your prompt. + Without setting up shell bindings powerline will use current working + directory of *tmux server* which is probably not what you need. + + Segments which depend on environment like + :py:func:`powerline.segments.common.env.virtualenv` will not work at all + (i.e. they will use environment of the tmux server), tracking environment + changes is going to slow down shell a lot. + + In any case it is suggested to avoid both kinds of segments in tmux + :ref:`themes <config-themes>` because even support for tracking current + directory is very limited: + + #. It works only in shell. Should you e.g. run Vim and run ``:cd`` there you + will get current working directory from shell. + #. It works only in local shell and requires configuring it. + #. Some shells are not supported at all. + +IPython prompt +============== + +For IPython>=7.0, add the following line to +:file:`~/.ipython/profile_default/ipython_config.py` file in the used profile: + + +.. code-block:: Python + + from powerline.bindings.ipython.since_7 import PowerlinePrompts + c.TerminalInteractiveShell.prompts_class = PowerlinePrompts + +.. note:: + If certain graphical/colored elements are not showing, make sure `c.TerminalInteractiveShell.simple_prompt` + is set to `False` in your config. + Setting ``simple_prompt`` to False after IPython-5.0 is required regardless + of whether you use ``c.InteractiveShellApp.extensions`` setting or + ``c.TerminalInteractiveShell.prompts_class``. But you probably already have + this line because ``simple_prompt`` is set to ``False`` by default and IPython + is not very useful without it. + +For IPython>=5.0 and <7.0 it is suggested to use + +.. code-block:: Python + + from powerline.bindings.ipython.since_5 import PowerlinePrompts + c = get_config() + c.TerminalInteractiveShell.simple_prompt = False + c.TerminalInteractiveShell.prompts_class = PowerlinePrompts + + + +For IPython>=5.0 and <7.0 you may use the below set up, but it is deprecated. +For IPython>=0.11 add the following line to +:file:`~/.ipython/profile_default/ipython_config.py` file in the used profile: + +.. code-block:: Python + + c = get_config() + c.InteractiveShellApp.extensions = [ + 'powerline.bindings.ipython.post_0_11' + ] + +For IPython<0.11 add the following lines to :file:`.ipython/ipy_user_conf.py`: + +.. code-block:: Python + + # top + from powerline.bindings.ipython.pre_0_11 import setup as powerline_setup + + # main() function (assuming ipython was launched without configuration to + # create skeleton ipy_user_conf.py file): + powerline_setup() + + +IPython=0.11* is not supported and does not work. IPython<0.10 was not +tested (not installable by pip). + +.. _pdb-prompt: + +PDB prompt +========== + +To use Powerline with PDB prompt you need to use custom class. Inherit your +class from :py:class:`pdb.Pdb` and decorate it with +:py:func:`powerline.bindings.pdb.use_powerline_prompt`: + +.. code-block:: Python + + import pdb + + from powerline.bindings.pdb import use_powerline_prompt + + @use_powerline_prompt + class MyPdb(pdb.Pdb): + pass + + MyPdb.run('some.code.to.debug()') + +. Alternatively you may use + +.. code-block:: bash + + python -mpowerline.bindings.pdb path/to/script.py + +just like you used ``python -m pdb``. + +.. note: + If you are using Python-2.6 you need to use ``python + -mpowerline.bindings.pdb.__main__``, not what is shown above. + +.. warning: + Using PyPy (not PyPy3) forces ASCII-only prompts. In other cases unicode + characters are allowed, even if you use `pdbpp + <https://pypi.python.org/pypi/pdbpp>`_. diff --git a/docs/source/usage/shell-prompts.rst b/docs/source/usage/shell-prompts.rst new file mode 100644 index 0000000..1ddb0a1 --- /dev/null +++ b/docs/source/usage/shell-prompts.rst @@ -0,0 +1,144 @@ +.. _usage-shell: + +************* +Shell prompts +************* + +.. note:: + Powerline daemon is not run automatically by any of my bindings. It is + advised to add + + .. code-block:: bash + + powerline-daemon -q + + before any other powerline-related code in the shell configuration file. + +Bash prompt +=========== + +Add the following line to the :file:`bashrc`, where ``{repository_root}`` is the +absolute path to the Powerline installation directory (see :ref:`repository root +<repository-root>`): + +.. code-block:: bash + + . {repository_root}/powerline/bindings/bash/powerline.sh + +.. note:: + Since without powerline daemon bash bindings are very slow PS2 + (continuation) and PS3 (select) prompts are not set up. Thus it is advised + to use + + .. code-block:: bash + + powerline-daemon -q + POWERLINE_BASH_CONTINUATION=1 + POWERLINE_BASH_SELECT=1 + . {repository_root}/powerline/bindings/bash/powerline.sh + + in the bash configuration file. Without ``POWERLINE_BASH_*`` variables PS2 + and PS3 prompts are computed exactly once at bash startup. + +.. warning:: + At maximum bash continuation PS2 and select PS3 prompts are computed each + time main PS1 prompt is computed. Thus putting e.g. current time into PS2 or + PS3 prompt will not work as expected. + + At minimum they are computed once on startup. + +Zsh prompt +========== + +Add the following line to the :file:`zshrc`, where ``{repository_root}`` is the +absolute path to the Powerline installation directory (see :ref:`repository root +<repository-root>`): + +.. code-block:: bash + + . {repository_root}/powerline/bindings/zsh/powerline.zsh + +Fish prompt +=========== + +Add the following line to :file:`config.fish`, where ``{repository_root}`` is +the absolute path to the Powerline installation directory (see :ref:`repository +root <repository-root>`): + +.. code-block:: bash + + set fish_function_path $fish_function_path "{repository_root}/powerline/bindings/fish" + powerline-setup + +.. warning:: Fish is supported only starting from version 2.1. + +Rcsh prompt +=========== + +Powerline supports Plan9 rc reimplementation *by Byron Rakitzis* packaged by +many \*nix distributions. To use it add + +.. code-block:: bash + + . {repository_root}/powerline/bindings/rc/powerline.rc + +(``{repository_root}`` is the absolute path to the Powerline installation +directory, see :ref:`repository root <repository-root>`) to :file:`rcrc` file +(usually :file:`~/.rcrc`) and make sure ``rc`` is started as a login shell (with +``-l`` argument): otherwise this configuration file is not read. + +.. warning:: + Original Plan9 shell and its \*nix port are not supported because they are + missing ``prompt`` special function (it is being called once before each + non-continuation prompt). Since powerline could not support shell without + this or equivalent feature some other not-so-critical features of that port + were used. + +Busybox (ash), mksh and dash prompt +===================================== + +After launching busybox run the following command: + +.. code-block:: bash + + . {repository_root}/powerline/bindings/shell/powerline.sh + +where ``{repository_root}`` is the absolute path to the Powerline installation +directory (see :ref:`repository root <repository-root>`). + +Mksh users may put this line into ``~/.mkshrc`` file. Dash users may use the +following in ``~/.profile``: + +.. code-block:: bash + + if test "$0" != "${0#dash}" ; then + export ENV={repository_root}/powerline/bindings/shell/powerline.sh + fi + +.. note:: + Dash users that already have ``$ENV`` defined should either put the ``. + …/shell/powerline.sh`` line in the ``$ENV`` file or create a new file which + will source (using ``.`` command) both former ``$ENV`` file and + :file:`powerline.sh` files and set ``$ENV`` to the path of this new file. + +.. warning:: + Mksh users have to set ``$POWERLINE_SHELL_CONTINUATION`` and + ``$POWERLINE_SHELL_SELECT`` to 1 to get PS2 and PS3 (continuation and + select) prompts support respectively: as command substitution is not + performed in these shells for these prompts they are updated once each time + PS1 prompt is displayed which may be slow. + + It is also known that while PS2 and PS3 update is triggered at PS1 update it + is *actually performed* only *next* time PS1 is displayed which means that + PS2 and PS3 prompts will be outdated and may be incorrect for this reason. + + Without these variables PS2 and PS3 prompts will be set once at startup. + This only touches mksh users: busybox and dash both have no such problem. + +.. warning:: + Job count is using some weird hack that uses signals and temporary files for + interprocess communication. It may be wrong sometimes. Not the case in mksh. + +.. warning:: + Busybox has two shells: ``ash`` and ``hush``. Second is known to segfault in + busybox 1.22.1 when using :file:`powerline.sh` script. diff --git a/docs/source/usage/wm-widgets.rst b/docs/source/usage/wm-widgets.rst new file mode 100644 index 0000000..204c008 --- /dev/null +++ b/docs/source/usage/wm-widgets.rst @@ -0,0 +1,102 @@ +********************** +Window manager widgets +********************** + +Awesome widget +============== + +.. note:: Powerline currently only supports awesome 3.5 and 4+. + +.. note:: The Powerline widget will spawn a shell script that runs in the + background and updates the statusline with ``awesome-client``. + +Add the following to :file:`rc.lua`, where ``{repository_root}`` is the absolute +path to Powerline installation directory (see :ref:`repository root +<repository-root>`): + +.. code-block:: lua + + package.path = package.path .. ';{repository_root}/powerline/bindings/awesome/?.lua' + require('powerline') + +Then add the ``powerline_widget`` to ``wibox``: + +.. code-block:: lua + + -- awesome3.5 + right_layout:add(powerline_widget) + + -- awesome4+ + s.mywibox:setup { + ... + { -- Right widgets + ... + powerline_widget, + }, + } + +Qtile widget +============ + +Add the following to :file:`~/.config/qtile/config.py`: + +.. code-block:: python + + from libqtile.bar import Bar + from libqtile.config import Screen + from libqtile.widget import Spacer + + from powerline.bindings.qtile.widget import PowerlineTextBox + + screens = [ + Screen( + top=Bar([ + PowerlineTextBox(update_interval=2, side='left'), + Spacer(), + PowerlineTextBox(update_interval=2, side='right'), + ], + 35 # width + ), + ), + ] + +.. _lemonbar-usage: + +lemonbar (formerly bar-aint-recursive) +====================================== + +To run the bar simply start the binding script: + + python /path/to/powerline/bindings/lemonbar/powerline-lemonbar.py + +You can specify options to be passed to ``lemonbar`` after ``--``, like so: + + python /path/to/powerline/bindings/lemonbar/powerline-lemonbar.py --height 16 -- -f "Source Code Pro for Powerline-9" + +to run with i3, simply ``exec`` this in the i3 config file and set the ``--i3`` switch: + + exec python /path/to/powerline/bindings/lemonbar/powerline-lemonbar.py --i3 + +Running the binding in i3-mode will require `i3ipc <https://github.com/acrisci/i3ipc-python>`_ +(or the outdated `i3-py <https://github.com/ziberna/i3-py>`_). + +See the `lemonbar documentation <https://github.com/LemonBoy/bar>`_ for more +information and options. + +All ``powerline-lemonbar.py`` arguments: + +.. automan:: powerline.commands.lemonbar + :prog: powerline-lemonbar.py + :minimal: true + +I3 bar +====== + +Add the following to :file:`~/.config/i3/config`:: + + bar { + status_command python /path/to/powerline/bindings/i3/powerline-i3.py + font pango:PowerlineFont 12 + } + +where ``PowerlineFont`` is any system font with powerline support. |
