oh-my-zsh/plugins/git-prompt/gitstatus.py

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#!/usr/bin/env python
from __future__ import print_function
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import sys
import re
import shlex
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from subprocess import Popen, PIPE, check_output
def get_tagname_or_hash():
"""return tagname if exists else hash"""
cmd = 'git log -1 --format="%h%d"'
output = check_output(shlex.split(cmd)).decode('utf-8').strip()
hash_, tagname = None, None
# get hash
m = re.search('\(.*\)$', output)
if m:
hash_ = output[:m.start()-1]
# get tagname
m = re.search('tag: .*[,\)]', output)
if m:
tagname = 'tags/' + output[m.start()+len('tag: '): m.end()-1]
if tagname:
return tagname
elif hash_:
return hash_
return None
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# `git status --porcelain --branch` can collect all information
# branch, remote_branch, untracked, staged, changed, conflicts, ahead, behind
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po = Popen(['git', 'status', '--porcelain', '--branch'], stdout=PIPE, stderr=PIPE)
stdout, sterr = po.communicate()
if po.returncode != 0:
sys.exit(0) # Not a git repository
# collect git status information
untracked, staged, changed, conflicts = [], [], [], []
ahead, behind = 0, 0
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status = [(line[0], line[1], line[2:]) for line in stdout.decode('utf-8').splitlines()]
for st in status:
if st[0] == '#' and st[1] == '#':
if re.search('Initial commit on', st[2]):
branch = st[2].split(' ')[-1]
elif re.search('no branch', st[2]): # detached status
branch = get_tagname_or_hash()
elif len(st[2].strip().split('...')) == 1:
branch = st[2].strip()
else:
# current and remote branch info
branch, rest = st[2].strip().split('...')
if len(rest.split(' ')) == 1:
# remote_branch = rest.split(' ')[0]
pass
else:
# ahead or behind
divergence = ' '.join(rest.split(' ')[1:])
divergence = divergence.lstrip('[').rstrip(']')
for div in divergence.split(', '):
if 'ahead' in div:
ahead = int(div[len('ahead '):].strip())
elif 'behind' in div:
behind = int(div[len('behind '):].strip())
elif st[0] == '?' and st[1] == '?':
untracked.append(st)
else:
if st[1] == 'M':
changed.append(st)
if st[0] == 'U':
conflicts.append(st)
elif st[0] != ' ':
staged.append(st)
out = ' '.join([
branch,
str(ahead),
str(behind),
str(len(staged)),
str(len(conflicts)),
str(len(changed)),
str(len(untracked)),
])
print(out, end='')