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# This file is part of ranger, the console file manager.
# License: GNU GPL version 3, see the file "AUTHORS" for details.
"""Git module"""
from __future__ import (absolute_import, print_function)
from datetime import datetime
import os
import re
import unicodedata
from .vcs import Vcs, VcsError
def string_control_replace(string, replacement):
"""Replace all unicode control characters with replacement"""
return ''.join(
(replacement if unicodedata.category(char)[0] == 'C' else char for char in string))
class Git(Vcs):
"""VCS implementation for Git"""
_status_translations = (
('MADRC', ' ', 'staged'),
(' MADRC', 'M', 'changed'),
(' MARC', 'D', 'deleted'),
('D', 'DU', 'conflict'),
('A', 'AU', 'conflict'),
('U', 'ADU', 'conflict'),
('?', '?', 'untracked'),
('!', '!', 'ignored'),
)
# Generic
def _head_ref(self):
"""Returns HEAD reference"""
return self._run(['symbolic-ref', self.HEAD]) or None
def _remote_ref(self, ref):
"""Returns remote reference associated to given ref"""
if ref is None:
return None
return self._run(['for-each-ref', '--format=%(upstream)', ref]) or None
def _log(self, refspec=None, maxres=None, filelist=None):
"""Returns an array of dicts containing revision info for refspec"""
args = ['--no-pager', 'log', '--pretty=%h%x00%H%x00%an <%ae>%x00%ct%x00%s%x00%x00']
if refspec:
args += ['-1', refspec]
elif maxres:
args += ['-{0:d}'.format(maxres)]
if filelist:
args += ['--'] + filelist
try:
output = self._run(args)
except VcsError:
return None
if not output:
return None
log = []
for line in output[:-2].split('\0\0\n'):
commit_hash_abbrev, commit_hash, author, timestamp, subject = line.split('\0')
log.append({
'short': commit_hash_abbrev,
'revid': commit_hash,
'author': string_control_replace(author, ' '),
'date': datetime.fromtimestamp(int(timestamp)),
'summary': string_control_replace(subject, ' '),
})
return log
def _status_translate(self, code):
"""Translate status code"""
for code_x, code_y, status in self._status_translations:
if code[0] in code_x and code[1] in code_y:
return status
return 'unknown'
# Action interface
def action_add(self, filelist=None):
args = ['add', '--all']
if filelist:
args += ['--'] + filelist
self._run(args, catchout=False)
def action_reset(self, filelist=None):
args = ['reset']
if filelist:
args += ['--'] + filelist
self._run(args, catchout=False)
# Data Interface
def data_status_root(self):
statuses = set()
# Paths with status
skip = False
lines = self._run(['status', '--porcelain', '-z']).split('\0')[:-1]
if not lines:
return 'sync'
for line in lines:
if skip:
skip = False
continue
statuses.add(self._status_translate(line[:2]))
if line.startswith('R'):
skip = True
for status in self.DIRSTATUSES:
if status in statuses:
return status
return 'sync'
def data_status_subpaths(self):
statuses = {}
# Ignored directories
paths = self._run([
'ls-files', '-z', '--others', '--directory', '--ignored', '--exclude-standard'
]).split('\0')[:-1]
for path in paths:
if path.endswith('/'):
statuses[os.path.normpath(path)] = 'ignored'
# Empty directories
paths = self._run(
['ls-files', '-z', '--others', '--directory', '--exclude-standard']).split('\0')[:-1]
for path in paths:
if path.endswith('/'):
statuses[os.path.normpath(path)] = 'none'
# Paths with status
lines = self._run(['status', '--porcelain', '-z', '--ignored']).split('\0')[:-1]
skip = False
for line in lines:
if skip:
skip = False
continue
statuses[os.path.normpath(line[3:])] = self._status_translate(line[:2])
if line.startswith('R'):
skip = True
return statuses
def data_status_remote(self):
try:
head = self._head_ref()
remote = self._remote_ref(head)
except VcsError:
head = remote = None
if not head or not remote:
return 'none'
output = self._run(['rev-list', '--left-right', '{0:s}...{1:s}'.format(remote, head)])
ahead = re.search(r'^>', output, flags=re.MULTILINE)
behind = re.search(r'^<', output, flags=re.MULTILINE)
if ahead:
return 'diverged' if behind else 'ahead'
else:
return 'behind' if behind else 'sync'
def data_branch(self):
try:
head = self._head_ref()
except VcsError:
head = None
if head is None:
return 'detached'
match = re.match('refs/heads/([^/]+)', head)
return match.group(1) if match else None
def data_info(self, rev=None):
if rev is None:
rev = self.HEAD
log = self._log(refspec=rev)
if not log:
if rev == self.HEAD:
return None
else:
raise VcsError('Revision {0:s} does not exist'.format(rev))
elif len(log) == 1:
return log[0]
else:
raise VcsError('More than one instance of revision {0:s}'.format(rev))
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