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# vim:fileencoding=utf-8:noet
from powerline.segments import Segment, with_docstring
from powerline.theme import requires_segment_info
from subprocess import PIPE, Popen
import os, re, string
@requires_segment_info
class GitStatusSegment(Segment):
def execute(self, pl, command):
pl.debug('Executing command: %s' % ' '.join(command))
git_env = os.environ.copy()
git_env['LC_ALL'] = 'C'
proc = Popen(command, stdout=PIPE, stderr=PIPE, env=git_env)
out, err = [item.decode('utf-8') for item in proc.communicate()]
if out:
pl.debug('Command output: %s' % out.strip(string.whitespace))
if err:
pl.debug('Command errors: %s' % err.strip(string.whitespace))
return (out.splitlines(), err.splitlines())
def get_base_command(self, cwd, use_dash_c):
if use_dash_c:
return ['git', '-C', cwd]
while cwd and cwd != os.sep:
gitdir = os.path.join(cwd, '.git')
if os.path.isdir(gitdir):
return ['git', '--git-dir=%s' % gitdir, '--work-tree=%s' % cwd]
cwd = os.path.dirname(cwd)
return None
def parse_branch(self, line):
if not line:
return ('', False, 0, 0)
if line.startswith('## '):
line = line[3:]
match = re.search('^Initial commit on (.+)$', line)
if match is not None:
return (match.group(1), False, 0, 0)
match = re.search('^(.+) \(no branch\)$', line)
if match is not None:
return (match.group(1), True, 0, 0)
match = re.search('^(.+?)\.\.\.', line)
if match is not None:
branch = match.group(1)
match = re.search('\[ahead (\d+), behind (\d+)\]$', line)
if match is not None:
return (branch, False, int(match.group(2)), int(match.group(1)))
match = re.search('\[ahead (\d+)\]$', line)
if match is not None:
return (branch, False, 0, int(match.group(1)))
match = re.search('\[behind (\d+)\]$', line)
if match is not None:
return (branch, False, int(match.group(1)), 0)
return (branch, False, 0, 0)
return (line, False, 0, 0)
def parse_status(self, lines):
staged = len([True for l in lines if l[0] in 'MRC' or (l[0] == 'D' and l[1] != 'D') or (l[0] == 'A' and l[1] != 'A')])
unmerged = len([True for l in lines if l[0] == 'U' or l[1] == 'U' or (l[0] == 'A' and l[1] == 'A') or (l[0] == 'D' and l[1] == 'D')])
changed = len([True for l in lines if l[1] == 'M' or (l[1] == 'D' and l[0] != 'D')])
untracked = len([True for l in lines if l[0] == '?'])
return (staged, unmerged, changed, untracked)
def build_segments(self, formats, branch, detached, tag, behind, ahead, staged, unmerged, changed, untracked, stashed):
if detached:
branch_group = 'gitstatus_branch_detached'
elif staged or unmerged or changed or untracked:
branch_group = 'gitstatus_branch_dirty'
else:
branch_group = 'gitstatus_branch_clean'
segments = [
{'contents': formats.get('branch', u'\ue0a0 {}').format(branch), 'highlight_groups': [branch_group, 'gitstatus_branch', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'}
]
if tag:
segments.append({'contents': formats.get('tag', u' \u2605 {}').format(tag), 'highlight_groups': ['gitstatus_tag', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
if behind:
segments.append({'contents': formats.get('behind', ' ↓ {}').format(behind), 'highlight_groups': ['gitstatus_behind', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
if ahead:
segments.append({'contents': formats.get('ahead', ' ↑ {}').format(ahead), 'highlight_groups': ['gitstatus_ahead', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
if staged:
segments.append({'contents': formats.get('staged', ' ● {}').format(staged), 'highlight_groups': ['gitstatus_staged', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
if unmerged:
segments.append({'contents': formats.get('unmerged', ' ✖ {}').format(unmerged), 'highlight_groups': ['gitstatus_unmerged', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
if changed:
segments.append({'contents': formats.get('changed', ' ✚ {}').format(changed), 'highlight_groups': ['gitstatus_changed', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
if untracked:
segments.append({'contents': formats.get('untracked', ' … {}').format(untracked), 'highlight_groups': ['gitstatus_untracked', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
if stashed:
segments.append({'contents': formats.get('stashed', ' ⚑ {}').format(stashed), 'highlight_groups': ['gitstatus_stashed', 'gitstatus'], 'divider_highlight_group': 'gitstatus:divider'})
return segments
def __call__(self, pl, segment_info, use_dash_c=True, show_tag=False, formats={}, detached_head_style='revision'):
pl.debug('Running gitstatus %s -C' % ('with' if use_dash_c else 'without'))
cwd = segment_info['getcwd']()
if not cwd:
return
base = self.get_base_command(cwd, use_dash_c)
if not base:
return
status, err = self.execute(pl, base + ['status', '--branch', '--porcelain'])
if err and ('error' in err[0] or 'fatal' in err[0]):
return
branch, detached, behind, ahead = self.parse_branch(status.pop(0))
if not branch:
return
if branch == 'HEAD':
if detached_head_style == 'revision':
branch = self.execute(pl, base + ['rev-parse', '--short', 'HEAD'])[0][0]
elif detached_head_style == 'ref':
branch = self.execute(pl, base + ['describe', '--contains', '--all'])[0][0]
staged, unmerged, changed, untracked = self.parse_status(status)
stashed = len(self.execute(pl, base + ['stash', 'list', '--no-decorate'])[0])
if not show_tag:
tag, err = [''], False
elif show_tag == 'contains':
tag, err = self.execute(pl, base + ['describe', '--contains'])
elif show_tag == 'last':
tag, err = self.execute(pl, base + ['describe', '--tags'])
elif show_tag == 'annotated':
tag, err = self.execute(pl, base + ['describe'])
else:
tag, err = self.execute(pl, base + ['describe', '--tags', '--exact-match', '--abbrev=0'])
if err and ('error' in err[0] or 'fatal' in err[0] or 'Could not get sha1 for HEAD' in err[0]):
tag = ''
else:
tag = tag[0]
return self.build_segments(formats, branch, detached, tag, behind, ahead, staged, unmerged, changed, untracked, stashed)
gitstatus = with_docstring(GitStatusSegment(),
'''Return the status of a Git working copy.
It will show the branch-name, or the commit hash if in detached head state.
It will also show the number of commits behind, commits ahead, staged files,
unmerged files (conflicts), changed files, untracked files and stashed files
if that number is greater than zero.
:param bool use_dash_c:
Call git with ``-C``, which is more performant and accurate, but requires git 1.8.5 or higher.
Otherwise it will traverse the current working directory up towards the root until it finds a ``.git`` directory, then use ``--git-dir`` and ``--work-tree``.
True by default.
:param bool show_tag:
Show tag description. Valid options are``contains``, ``last``, ``annotated`` and ``exact``. A value of True behaves the same as ``exact``, which only displays a tag when it's assigned to the currently checked-out revision.
False by default, because it needs to execute git an additional time.
:param dict formats:
A string-to-string dictionary for customizing Git status formats. Valid keys include ``branch``, ``tag``, ``ahead``, ``behind``, ``staged``, ``unmerged``, ``changes``, ``untracked``, and ``stashed``.
Empty dictionary by default, which means the default formats are used.
:param detached_head_style:
Display style when in detached HEAD state. Valid values are ``revision``, which shows the current revision id, and ``ref``, which shows the closest reachable ref object.
The default is ``revision``.
Divider highlight group used: ``gitstatus:divider``.
Highlight groups used: ``gitstatus_branch_detached``, ``gitstatus_branch_dirty``, ``gitstatus_branch_clean``, ``gitstatus_branch``, ``gitstatus_tag``, ``gitstatus_behind``, ``gitstatus_ahead``, ``gitstatus_staged``, ``gitstatus_unmerged``, ``gitstatus_changed``, ``gitstatus_untracked``, ``gitstatus_stashed``, ``gitstatus``.
''')
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