Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 258 insertions, 0 deletions

diff --git a/python/mozterm/mozterm/__init__.py b/python/mozterm/mozterm/__init__.py
new file mode 100644
index 0000000000..0659036f40
--- /dev/null
+++ b/python/mozterm/mozterm/__init__.py
@@ -0,0 +1,6 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+from __future__ import absolute_import, unicode_literals
+
+from .terminal import Terminal, NullTerminal  # noqa
diff --git a/python/mozterm/mozterm/terminal.py b/python/mozterm/mozterm/terminal.py
new file mode 100644
index 0000000000..45aa1bdd41
--- /dev/null
+++ b/python/mozterm/mozterm/terminal.py
@@ -0,0 +1,53 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from __future__ import absolute_import, unicode_literals
+
+import os
+import sys
+
+import six
+
+
+class NullTerminal(object):
+    """Replacement for `blessings.Terminal()` that does no formatting."""
+
+    number_of_colors = 0
+    width = 0
+    height = 0
+
+    def __init__(self, stream=None, **kwargs):
+        self.stream = stream or sys.__stdout__
+        try:
+            self.is_a_tty = os.isatty(self.stream.fileno())
+        except Exception:
+            self.is_a_tty = False
+
+    class NullCallableString(six.text_type):
+        """A dummy callable Unicode stolen from blessings"""
+
+        def __new__(cls):
+            new = six.text_type.__new__(cls, "")
+            return new
+
+        def __call__(self, *args):
+            if len(args) != 1 or isinstance(args[0], int):
+                return ""
+            return args[0]
+
+    def __getattr__(self, attr):
+        return self.NullCallableString()
+
+
+def Terminal(raises=False, disable_styling=False, **kwargs):
+    if disable_styling:
+        return NullTerminal(**kwargs)
+
+    try:
+        import blessings
+    except Exception:
+        if raises:
+            raise
+        return NullTerminal(**kwargs)
+    return blessings.Terminal(**kwargs)
diff --git a/python/mozterm/mozterm/widgets.py b/python/mozterm/mozterm/widgets.py
new file mode 100644
index 0000000000..9c2a3219a9
--- /dev/null
+++ b/python/mozterm/mozterm/widgets.py
@@ -0,0 +1,58 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from __future__ import absolute_import, unicode_literals
+
+from .terminal import Terminal
+
+
+class BaseWidget(object):
+    def __init__(self, terminal=None):
+        self.term = terminal or Terminal()
+        self.stream = self.term.stream
+
+
+class Footer(BaseWidget):
+    """Handles display of a footer in a terminal."""
+
+    def clear(self):
+        """Removes the footer from the current terminal."""
+        self.stream.write(self.term.move_x(0))
+        self.stream.write(self.term.clear_eol())
+
+    def write(self, parts):
+        """Write some output in the footer, accounting for terminal width.
+
+        parts is a list of 2-tuples of (encoding_function, input).
+        None means no encoding."""
+
+        # We don't want to write more characters than the current width of the
+        # terminal otherwise wrapping may result in weird behavior. We can't
+        # simply truncate the line at terminal width characters because a)
+        # non-viewable escape characters count towards the limit and b) we
+        # don't want to truncate in the middle of an escape sequence because
+        # subsequent output would inherit the escape sequence.
+        max_width = self.term.width
+        written = 0
+        write_pieces = []
+        for part in parts:
+            try:
+                func, part = part
+                encoded = getattr(self.term, func)(part)
+            except ValueError:
+                encoded = part
+
+            len_part = len(part)
+            len_spaces = len(write_pieces)
+            if written + len_part + len_spaces > max_width:
+                write_pieces.append(part[0 : max_width - written - len_spaces])
+                written += len_part
+                break
+
+            write_pieces.append(encoded)
+            written += len_part
+
+        with self.term.location():
+            self.term.move(self.term.height - 1, 0)
+            self.stream.write(" ".join(write_pieces))
diff --git a/python/mozterm/setup.cfg b/python/mozterm/setup.cfg
new file mode 100644
index 0000000000..3c6e79cf31
--- /dev/null
+++ b/python/mozterm/setup.cfg
@@ -0,0 +1,2 @@
+[bdist_wheel]
+universal=1
diff --git a/python/mozterm/setup.py b/python/mozterm/setup.py
new file mode 100644
index 0000000000..bfbe291e66
--- /dev/null
+++ b/python/mozterm/setup.py
@@ -0,0 +1,32 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from __future__ import absolute_import
+
+from setuptools import setup
+
+VERSION = "1.0.0"
+DEPS = ["six >= 1.13.0"]
+
+setup(
+    name="mozterm",
+    description="Terminal abstractions built around the blessings module.",
+    license="MPL 2.0",
+    author="Andrew Halberstadt",
+    author_email="ahalberstadt@mozilla.com",
+    url="",
+    packages=["mozterm"],
+    version=VERSION,
+    classifiers=[
+        "Environment :: Console",
+        "Development Status :: 3 - Alpha",
+        "License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)",
+        "Natural Language :: English",
+        "Programming Language :: Python :: 2",
+        "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.5",
+    ],
+    install_requires=DEPS,
+)
diff --git a/python/mozterm/test/python.ini b/python/mozterm/test/python.ini
new file mode 100644
index 0000000000..948628929f
--- /dev/null
+++ b/python/mozterm/test/python.ini
@@ -0,0 +1,5 @@
+[DEFAULT]
+subsuite = mozterm
+
+[test_terminal.py]
+[test_widgets.py]
diff --git a/python/mozterm/test/test_terminal.py b/python/mozterm/test/test_terminal.py
new file mode 100644
index 0000000000..25b63545bb
--- /dev/null
+++ b/python/mozterm/test/test_terminal.py
@@ -0,0 +1,51 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from __future__ import absolute_import, unicode_literals
+
+import os
+import sys
+
+import mozunit
+import pytest
+
+from mozterm import Terminal, NullTerminal
+
+
+def test_terminal():
+    blessings = pytest.importorskip("blessings")
+    term = Terminal()
+    assert isinstance(term, blessings.Terminal)
+
+    term = Terminal(disable_styling=True)
+    assert isinstance(term, NullTerminal)
+
+    del sys.modules["blessings"]
+    orig = sys.path[:]
+    for path in orig:
+        if "blessings" in path:
+            sys.path.remove(path)
+
+    term = Terminal()
+    assert isinstance(term, NullTerminal)
+
+    with pytest.raises(ImportError):
+        term = Terminal(raises=True)
+
+    sys.path = orig
+
+
+def test_null_terminal():
+    term = NullTerminal()
+    assert term.red("foo") == "foo"
+    assert term.red == ""
+    assert term.color(1) == ""
+    assert term.number_of_colors == 0
+    assert term.width == 0
+    assert term.height == 0
+    assert term.is_a_tty == os.isatty(sys.stdout.fileno())
+
+
+if __name__ == "__main__":
+    mozunit.main()
diff --git a/python/mozterm/test/test_widgets.py b/python/mozterm/test/test_widgets.py
new file mode 100644
index 0000000000..f1664f62c5
--- /dev/null
+++ b/python/mozterm/test/test_widgets.py
@@ -0,0 +1,51 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from __future__ import absolute_import, unicode_literals
+
+from io import StringIO
+
+import mozunit
+import pytest
+
+from mozterm import Terminal
+from mozterm.widgets import Footer
+
+
+@pytest.fixture
+def terminal(monkeypatch):
+    blessings = pytest.importorskip("blessings")
+
+    kind = "xterm-256color"
+    try:
+        term = Terminal(stream=StringIO(), force_styling=True, kind=kind)
+    except blessings.curses.error:
+        pytest.skip("terminal '{}' not found".format(kind))
+
+    # For some reason blessings returns None for width/height though a comment
+    # says that shouldn't ever happen.
+    monkeypatch.setattr(term, "_height_and_width", lambda: (100, 100))
+    return term
+
+
+def test_footer(terminal):
+    footer = Footer(terminal=terminal)
+    footer.write(
+        [
+            ("dim", "foo"),
+            ("green", "bar"),
+        ]
+    )
+    value = terminal.stream.getvalue()
+    expected = "\x1b7\x1b[2mfoo\x1b(B\x1b[m \x1b[32mbar\x1b(B\x1b[m\x1b8"
+    assert value == expected
+
+    footer.clear()
+    value = terminal.stream.getvalue()[len(value) :]
+    expected = "\x1b[1G\x1b[K"
+    assert value == expected
+
+
+if __name__ == "__main__":
+    mozunit.main()