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git-prompt: collect all git status information by one cmd

This commit uses the `git status --porcelain -b` format to gather the
number of ahead and behind commits related to the remote branch.
This commit is contained in:
Kentaro Wada 2015-08-02 08:50:56 +09:00 committed by Marc Cornellà
parent 6ff53d173b
commit 94007f7db2

View file

@ -5,25 +5,40 @@ from __future__ import print_function
prehash = ':'
import sys
import subprocess
from subprocess import Popen, PIPE
branch, error = Popen(['git', 'symbolic-ref', 'HEAD'], stdout=PIPE, stderr=PIPE).communicate()
if 'fatal: Not a git repository' in error.decode('utf-8'):
sys.exit(0)
# `git status --porcelain -b` can collect all information
# branch, remote_branch, untracked, staged, changed, conflicts, ahead, behind
po = Popen(['git', 'status', '--porcelain', '-b'], stdout=PIPE, stderr=PIPE)
stdout, sterr = po.communicate()
if po.returncode != 0:
sys.exit(0) # Not a git repository
branch = branch.decode("utf-8").strip()[11:]
# Get git status (staged, change, conflicts and untracked)
try:
res = subprocess.check_output(['git', 'status', '--porcelain'])
except subprocess.CalledProcessError:
sys.exit(0)
status = [(st[0], st[1], st[2:]) for st in res.splitlines()]
# collect git status information
untracked, staged, changed, conflicts = [], [], [], []
ahead, behind = 0, 0
status = [(line[0], line[1], line[2:]) for line in stdout.splitlines()]
for st in status:
if st[0] == '?' and st[1] == '?':
if st[0] == '#' and st[1] == '#':
if 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':
@ -33,26 +48,6 @@ for st in status:
elif st[0] != ' ':
staged.append(st)
ahead, behind = 0,0
if not branch: # not on any branch
branch = prehash + Popen(['git','rev-parse','--short','HEAD'], stdout=PIPE).communicate()[0].decode("utf-8")[:-1]
else:
remote_name = Popen(['git','config','branch.%s.remote' % branch], stdout=PIPE).communicate()[0].decode("utf-8").strip()
if remote_name:
merge_name = Popen(['git','config','branch.%s.merge' % branch], stdout=PIPE).communicate()[0].decode("utf-8").strip()
if remote_name == '.': # local
remote_ref = merge_name
else:
remote_ref = 'refs/remotes/%s/%s' % (remote_name, merge_name[11:])
revgit = Popen(['git', 'rev-list', '--left-right', '%s...HEAD' % remote_ref],stdout=PIPE, stderr=PIPE)
revlist = revgit.communicate()[0]
if revgit.poll(): # fallback to local
revlist = Popen(['git', 'rev-list', '--left-right', '%s...HEAD' % merge_name],stdout=PIPE, stderr=PIPE).communicate()[0]
behead = revlist.decode("utf-8").splitlines()
ahead = len([x for x in behead if x[0]=='>'])
behind = len(behead) - ahead
out = ' '.join([
branch,
str(ahead),