blob: f5edfb16717691c384fe8d2b7b04ae2f1a9bfcab [file] [log] [blame]
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Monkeypatch IMapIterator so that Ctrl-C can kill everything properly.
# Derived from
from __future__ import print_function
import multiprocessing.pool
from multiprocessing.pool import IMapIterator
def wrapper(func):
def wrap(self, timeout=None):
return func(self, timeout=timeout or 1e100)
return wrap = wrapper(
IMapIterator.__next__ =
# TODO(iannucci): Monkeypatch all other 'wait' methods too.
import binascii
import collections
import contextlib
import functools
import logging
import os
import re
import setup_color
import shutil
import signal
import sys
import tempfile
import textwrap
import threading
import subprocess2
from io import BytesIO
ROOT = os.path.abspath(os.path.dirname(__file__))
IS_WIN = sys.platform == 'win32'
def win_find_git():
for elem in os.environ.get('PATH', '').split(os.pathsep):
for candidate in ('git.exe', 'git.bat'):
path = os.path.join(elem, candidate)
if os.path.isfile(path):
return path
raise ValueError('Could not find Git on PATH.')
GIT_EXE = 'git' if not IS_WIN else win_find_git()
'indexed': 'soft',
'unindexed': 'mixed'
FREEZE_MATCHER = re.compile(r'%s.(%s)' % (FREEZE, '|'.join(FREEZE_SECTIONS)))
# NOTE: This list is DEPRECATED in favor of the Infra Git wrapper:
# New entries should be added to the Git wrapper, NOT to this list. "git_retry"
# is, similarly, being deprecated in favor of the Git wrapper.
# ---
# Retry a git operation if git returns a error response with any of these
# messages. It's all observed 'bad' GoB responses so far.
# This list is inspired/derived from the one in ChromiumOS's Chromite:
# <CHROMITE>/lib/
# It was last imported from '7add3ac29564d98ac35ce426bc295e743e7c0c02'.
r'!.*\[remote rejected\].*\(error in hook\)',
r'!.*\[remote rejected\].*\(failed to lock\)',
r'!.*\[remote rejected\].*\(error in Gerrit backend\)',
r'remote error: Internal Server Error',
r'fatal: Couldn\'t find remote ref ',
r'git fetch_pack: expected ACK/NAK, got',
r'protocol error: bad pack header',
r'The remote end hung up unexpectedly',
r'TLS packet with unexpected length was received',
r'RPC failed; result=\d+, HTTP code = \d+',
r'Connection timed out',
# TODO(dnj): Resync with Chromite.
r'The requested URL returned error: 5\d+',
r'Connection reset by peer',
r'Unable to look up',
r'Couldn\'t resolve host',
# git's for-each-ref command first supported the upstream:track token in its
# format string in version 1.9.0, but some usages were broken until 2.3.0.
# See git commit b6160d95 for more information.
class BadCommitRefException(Exception):
def __init__(self, refs):
msg = ('one of %s does not seem to be a valid commitref.' %
super(BadCommitRefException, self).__init__(msg)
def memoize_one(**kwargs):
"""Memoizes a single-argument pure function.
Values of None are not cached.
threadsafe (bool) - REQUIRED. Specifies whether to use locking around
cache manipulation functions. This is a kwarg so that users of memoize_one
are forced to explicitly and verbosely pick True or False.
Adds three methods to the decorated function:
* get(key, default=None) - Gets the value for this key from the cache.
* set(key, value) - Sets the value for this key from the cache.
* clear() - Drops the entire contents of the cache. Useful for unittests.
* update(other) - Updates the contents of the cache from another dict.
assert 'threadsafe' in kwargs, 'Must specify threadsafe={True,False}'
threadsafe = kwargs['threadsafe']
if threadsafe:
def withlock(lock, f):
def inner(*args, **kwargs):
with lock:
return f(*args, **kwargs)
return inner
def withlock(_lock, f):
return f
def decorator(f):
# Instantiate the lock in decorator, in case users of memoize_one do:
# memoizer = memoize_one(threadsafe=True)
# @memoizer
# def fn1(val): ...
# @memoizer
# def fn2(val): ...
lock = threading.Lock() if threadsafe else None
cache = {}
_get = withlock(lock, cache.get)
_set = withlock(lock, cache.__setitem__)
def inner(arg):
ret = _get(arg)
if ret is None:
ret = f(arg)
if ret is not None:
_set(arg, ret)
return ret
inner.get = _get
inner.set = _set
inner.clear = withlock(lock, cache.clear)
inner.update = withlock(lock, cache.update)
return inner
return decorator
def _ScopedPool_initer(orig, orig_args): # pragma: no cover
"""Initializer method for ScopedPool's subprocesses.
This helps ScopedPool handle Ctrl-C's correctly.
signal.signal(signal.SIGINT, signal.SIG_IGN)
if orig:
def ScopedPool(*args, **kwargs):
"""Context Manager which returns a multiprocessing.pool instance which
correctly deals with thrown exceptions.
*args - Arguments to multiprocessing.pool
kind ('threads', 'procs') - The type of underlying coprocess to use.
**etc - Arguments to multiprocessing.pool
if kwargs.pop('kind', None) == 'threads':
pool = multiprocessing.pool.ThreadPool(*args, **kwargs)
orig, orig_args = kwargs.get('initializer'), kwargs.get('initargs', ())
kwargs['initializer'] = _ScopedPool_initer
kwargs['initargs'] = orig, orig_args
pool = multiprocessing.pool.Pool(*args, **kwargs)
yield pool
class ProgressPrinter(object):
"""Threaded single-stat status message printer."""
def __init__(self, fmt, enabled=None, fout=sys.stderr, period=0.5):
"""Create a ProgressPrinter.
Use it as a context manager which produces a simple 'increment' method:
with ProgressPrinter('(%%(count)d/%d)' % 1000) as inc:
for i in xrange(1000):
# do stuff
if i % 10 == 0:
fmt - String format with a single '%(count)d' where the counter value
should go.
enabled (bool) - If this is None, will default to True if
logging.getLogger() is set to INFO or more verbose.
fout (file-like) - The stream to print status messages to.
period (float) - The time in seconds for the printer thread to wait
between printing.
self.fmt = fmt
if enabled is None: # pragma: no cover
self.enabled = logging.getLogger().isEnabledFor(logging.INFO)
self.enabled = enabled
self._count = 0
self._dead = False
self._dead_cond = threading.Condition()
self._stream = fout
self._thread = threading.Thread(target=self._run)
self._period = period
def _emit(self, s):
if self.enabled:
self._stream.write('\r' + s)
def _run(self):
with self._dead_cond:
while not self._dead:
self._emit(self.fmt % {'count': self._count})
self._emit((self.fmt + '\n') % {'count': self._count})
def inc(self, amount=1):
self._count += amount
def __enter__(self):
def __exit__(self, _exc_type, _exc_value, _traceback):
self._dead = True
with self._dead_cond:
del self._thread
def once(function):
"""@Decorates |function| so that it only performs its action once, no matter
how many times the decorated |function| is called."""
def _inner_gen():
yield function()
while True:
return _inner_gen().next
## Git functions
def die(message, *args):
print(textwrap.dedent(message % args), file=sys.stderr)
def blame(filename, revision=None, porcelain=False, abbrev=None, *_args):
command = ['blame']
if porcelain:
if revision is not None:
if abbrev is not None:
command.append('--abbrev=%d' % abbrev)
command.extend(['--', filename])
return run(*command)
def branch_config(branch, option, default=None):
return get_config('branch.%s.%s' % (branch, option), default=default)
def branch_config_map(option):
"""Return {branch: <|option| value>} for all branches."""
reg = re.compile(r'^branch\.(.*)\.%s$' % option)
lines = get_config_regexp(reg.pattern)
return {reg.match(k).group(1): v for k, v in (l.split() for l in lines)}
except subprocess2.CalledProcessError:
return {}
def branches(use_limit=True, *args):
NO_BRANCH = ('* (no branch', '* (detached', '* (HEAD detached')
key = 'depot-tools.branch-limit'
limit = get_config_int(key, 20)
raw_branches = run('branch', *args).splitlines()
num = len(raw_branches)
if use_limit and num > limit:
Your git repo has too many branches (%d/%d) for this tool to work well.
You may adjust this limit by running:
git config %s <new_limit>
You may also try cleaning up your old branches by running:
git cl archive
""", num, limit, key)
for line in raw_branches:
if line.startswith(NO_BRANCH):
yield line.split()[-1]
def get_config(option, default=None):
return run('config', '--get', option) or default
except subprocess2.CalledProcessError:
return default
def get_config_int(option, default=0):
assert isinstance(default, int)
return int(get_config(option, default))
except ValueError:
return default
def get_config_list(option):
return run('config', '--get-all', option).split()
except subprocess2.CalledProcessError:
return []
def get_config_regexp(pattern):
if IS_WIN: # pragma: no cover
# this madness is because we call git.bat which calls git.exe which calls
# bash.exe (or something to that effect). Each layer divides the number of
# ^'s by 2.
pattern = pattern.replace('^', '^' * 8)
return run('config', '--get-regexp', pattern).splitlines()
def current_branch():
return run('rev-parse', '--abbrev-ref', 'HEAD')
except subprocess2.CalledProcessError:
return None
def del_branch_config(branch, option, scope='local'):
del_config('branch.%s.%s' % (branch, option), scope=scope)
def del_config(option, scope='local'):
run('config', '--' + scope, '--unset', option)
except subprocess2.CalledProcessError:
def diff(oldrev, newrev, *args):
return run('diff', oldrev, newrev, *args)
def freeze():
took_action = False
key = 'depot-tools.freeze-size-limit'
MB = 2**20
limit_mb = get_config_int(key, 100)
untracked_bytes = 0
root_path = repo_root()
for f, s in status():
if is_unmerged(s):
die("Cannot freeze unmerged changes!")
if limit_mb > 0:
if s.lstat == '?':
untracked_bytes += os.stat(os.path.join(root_path, f)).st_size
if limit_mb > 0 and untracked_bytes > limit_mb * MB:
You appear to have too much untracked+unignored data in your git
checkout: %.1f / %d MB.
Run `git status` to see what it is.
In addition to making many git commands slower, this will prevent
depot_tools from freezing your in-progress changes.
You should add untracked data that you want to ignore to your repo's
file. See `git help ignore` for the format of this file.
If this data is indended as part of your commit, you may adjust the
freeze limit by running:
git config %s <new_limit>
Where <new_limit> is an integer threshold in megabytes.""",
untracked_bytes / (MB * 1.0), limit_mb, key)
run('commit', '--no-verify', '-m', FREEZE + '.indexed')
took_action = True
except subprocess2.CalledProcessError:
add_errors = False
run('add', '-A', '--ignore-errors')
except subprocess2.CalledProcessError:
add_errors = True
run('commit', '--no-verify', '-m', FREEZE + '.unindexed')
took_action = True
except subprocess2.CalledProcessError:
ret = []
if add_errors:
ret.append('Failed to index some unindexed files.')
if not took_action:
ret.append('Nothing to freeze.')
return ' '.join(ret) or None
def get_branch_tree():
"""Get the dictionary of {branch: parent}, compatible with topo_iter.
Returns a tuple of (skipped, <branch_tree dict>) where skipped is a set of
branches without upstream branches defined.
skipped = set()
branch_tree = {}
for branch in branches():
parent = upstream(branch)
if not parent:
branch_tree[branch] = parent
return skipped, branch_tree
def get_or_create_merge_base(branch, parent=None):
"""Finds the configured merge base for branch.
If parent is supplied, it's used instead of calling upstream(branch).
base = branch_config(branch, 'base')
base_upstream = branch_config(branch, 'base-upstream')
parent = parent or upstream(branch)
if parent is None or branch is None:
return None
actual_merge_base = run('merge-base', parent, branch)
if base_upstream != parent:
base = None
base_upstream = None
def is_ancestor(a, b):
return run_with_retcode('merge-base', '--is-ancestor', a, b) == 0
if base and base != actual_merge_base:
if not is_ancestor(base, branch):
logging.debug('Found WRONG pre-set merge-base for %s: %s', branch, base)
base = None
elif is_ancestor(base, actual_merge_base):
logging.debug('Found OLD pre-set merge-base for %s: %s', branch, base)
base = None
logging.debug('Found pre-set merge-base for %s: %s', branch, base)
if not base:
base = actual_merge_base
manual_merge_base(branch, base, parent)
return base
def hash_multi(*reflike):
return run('rev-parse', *reflike).splitlines()
def hash_one(reflike, short=False):
args = ['rev-parse', reflike]
if short:
args.insert(1, '--short')
return run(*args)
def in_rebase():
git_dir = run('rev-parse', '--git-dir')
return (
os.path.exists(os.path.join(git_dir, 'rebase-merge')) or
os.path.exists(os.path.join(git_dir, 'rebase-apply')))
def intern_f(f, kind='blob'):
"""Interns a file object into the git object store.
f (file-like object) - The file-like object to intern
kind (git object type) - One of 'blob', 'commit', 'tree', 'tag'.
Returns the git hash of the interned object (hex encoded).
ret = run('hash-object', '-t', kind, '-w', '--stdin', stdin=f)
return ret
def is_dormant(branch):
# TODO(iannucci): Do an oldness check?
return branch_config(branch, 'dormant', 'false') != 'false'
def is_unmerged(stat_value):
return (
'U' in (stat_value.lstat, stat_value.rstat) or
((stat_value.lstat == stat_value.rstat) and stat_value.lstat in 'AD')
def manual_merge_base(branch, base, parent):
set_branch_config(branch, 'base', base)
set_branch_config(branch, 'base-upstream', parent)
def mktree(treedict):
"""Makes a git tree object and returns its hash.
See |tree()| for the values of mode, type, and ref.
treedict - { name: (mode, type, ref) }
with tempfile.TemporaryFile() as f:
for name, (mode, typ, ref) in treedict.iteritems():
f.write('%s %s %s\t%s\0' % (mode, typ, ref, name))
return run('mktree', '-z', stdin=f)
def parse_commitrefs(*commitrefs):
"""Returns binary encoded commit hashes for one or more commitrefs.
A commitref is anything which can resolve to a commit. Popular examples:
* 'HEAD'
* 'origin/master'
* 'cool_branch~2'
return map(binascii.unhexlify, hash_multi(*commitrefs))
except subprocess2.CalledProcessError:
raise BadCommitRefException(commitrefs)
RebaseRet = collections.namedtuple('RebaseRet', 'success stdout stderr')
def rebase(parent, start, branch, abort=False):
"""Rebases |start|..|branch| onto the branch |parent|.
parent - The new parent ref for the rebased commits.
start - The commit to start from
branch - The branch to rebase
abort - If True, will call git-rebase --abort in the event that the rebase
doesn't complete successfully.
Returns a namedtuple with fields:
success - a boolean indicating that the rebase command completed
message - if the rebase failed, this contains the stdout of the failed
args = ['--onto', parent, start, branch]
args.insert(0, '--committer-date-is-author-date')
run('rebase', *args)
return RebaseRet(True, '', '')
except subprocess2.CalledProcessError as cpe:
if abort:
run_with_retcode('rebase', '--abort') # ignore failure
return RebaseRet(False, cpe.stdout, cpe.stderr)
def remove_merge_base(branch):
del_branch_config(branch, 'base')
del_branch_config(branch, 'base-upstream')
def repo_root():
"""Returns the absolute path to the repository root."""
return run('rev-parse', '--show-toplevel')
def root():
return get_config('depot-tools.upstream', 'origin/master')
def less(): # pragma: no cover
"""Runs 'less' as context manager yielding its stdin as a PIPE.
Automatically checks if sys.stdout is a non-TTY stream. If so, it avoids
running less and just yields sys.stdout.
if not setup_color.IS_TTY:
yield sys.stdout
# Run with the same options that git uses (see setup_pager in git repo).
# -F: Automatically quit if the output is less than one screen.
# -R: Don't escape ANSI color codes.
# -X: Don't clear the screen before starting.
cmd = ('less', '-FRX')
proc = subprocess2.Popen(cmd, stdin=subprocess2.PIPE)
yield proc.stdin
def run(*cmd, **kwargs):
"""The same as run_with_stderr, except it only returns stdout."""
return run_with_stderr(*cmd, **kwargs)[0]
def run_with_retcode(*cmd, **kwargs):
"""Run a command but only return the status code."""
run(*cmd, **kwargs)
return 0
except subprocess2.CalledProcessError as cpe:
return cpe.returncode
def run_stream(*cmd, **kwargs):
"""Runs a git command. Returns stdout as a PIPE (file-like object).
stderr is dropped to avoid races if the process outputs to both stdout and
kwargs.setdefault('stderr', subprocess2.VOID)
kwargs.setdefault('stdout', subprocess2.PIPE)
kwargs.setdefault('shell', False)
cmd = (GIT_EXE, '-c', 'color.ui=never') + cmd
proc = subprocess2.Popen(cmd, **kwargs)
return proc.stdout
def run_stream_with_retcode(*cmd, **kwargs):
"""Runs a git command as context manager yielding stdout as a PIPE.
stderr is dropped to avoid races if the process outputs to both stdout and
Raises subprocess2.CalledProcessError on nonzero return code.
kwargs.setdefault('stderr', subprocess2.VOID)
kwargs.setdefault('stdout', subprocess2.PIPE)
kwargs.setdefault('shell', False)
cmd = (GIT_EXE, '-c', 'color.ui=never') + cmd
proc = subprocess2.Popen(cmd, **kwargs)
yield proc.stdout
retcode = proc.wait()
if retcode != 0:
raise subprocess2.CalledProcessError(retcode, cmd, os.getcwd(),
None, None)
def run_with_stderr(*cmd, **kwargs):
"""Runs a git command.
Returns (stdout, stderr) as a pair of strings.
autostrip (bool) - Strip the output. Defaults to True.
indata (str) - Specifies stdin data for the process.
kwargs.setdefault('stdin', subprocess2.PIPE)
kwargs.setdefault('stdout', subprocess2.PIPE)
kwargs.setdefault('stderr', subprocess2.PIPE)
kwargs.setdefault('shell', False)
autostrip = kwargs.pop('autostrip', True)
indata = kwargs.pop('indata', None)
cmd = (GIT_EXE, '-c', 'color.ui=never') + cmd
proc = subprocess2.Popen(cmd, **kwargs)
ret, err = proc.communicate(indata)
retcode = proc.wait()
if retcode != 0:
raise subprocess2.CalledProcessError(retcode, cmd, os.getcwd(), ret, err)
if autostrip:
ret = (ret or '').strip()
err = (err or '').strip()
return ret, err
def set_branch_config(branch, option, value, scope='local'):
set_config('branch.%s.%s' % (branch, option), value, scope=scope)
def set_config(option, value, scope='local'):
run('config', '--' + scope, option, value)
def get_dirty_files():
# Make sure index is up-to-date before running diff-index.
run_with_retcode('update-index', '--refresh', '-q')
return run('diff-index', '--name-status', 'HEAD')
def is_dirty_git_tree(cmd):
w = lambda s: sys.stderr.write(s+"\n")
dirty = get_dirty_files()
if dirty:
w('Cannot %s with a dirty tree. Commit, freeze or stash your changes first.'
% cmd)
w('Uncommitted files: (git diff-index --name-status HEAD)')
if len(dirty) > 4096: # pragma: no cover
w('... (run "git diff-index --name-status HEAD" to see full output).')
return True
return False
def status():
"""Returns a parsed version of git-status.
Returns a generator of (current_name, (lstat, rstat, src)) pairs where:
* current_name is the name of the file
* lstat is the left status code letter from git-status
* rstat is the left status code letter from git-status
* src is the current name of the file, or the original name of the file
if lstat == 'R'
stat_entry = collections.namedtuple('stat_entry', 'lstat rstat src')
def tokenizer(stream):
acc = BytesIO()
c = None
while c != '':
c =
if c in (None, '', '\0'):
if len(acc.getvalue()):
yield acc.getvalue()
acc = BytesIO()
def parser(tokens):
while True:
# Raises StopIteration if it runs out of tokens.
status_dest = next(tokens)
stat, dest = status_dest[:2], status_dest[3:]
lstat, rstat = stat
if lstat == 'R':
src = next(tokens)
src = dest
yield (dest, stat_entry(lstat, rstat, src))
return parser(tokenizer(run_stream('status', '-z', bufsize=-1)))
def squash_current_branch(header=None, merge_base=None):
header = header or 'git squash commit for %s.' % current_branch()
merge_base = merge_base or get_or_create_merge_base(current_branch())
log_msg = header + '\n'
if log_msg:
log_msg += '\n'
log_msg += run('log', '--reverse', '--format=%H%n%B', '%s..HEAD' % merge_base)
run('reset', '--soft', merge_base)
if not get_dirty_files():
# Sometimes the squash can result in the same tree, meaning that there is
# nothing to commit at this point.
print('Nothing to commit; squashed branch is empty')
return False
run('commit', '--no-verify', '-a', '-F', '-', indata=log_msg)
return True
def tags(*args):
return run('tag', *args).splitlines()
def thaw():
took_action = False
for sha in (s.strip() for s in run_stream('rev-list', 'HEAD').xreadlines()):
msg = run('show', '--format=%f%b', '-s', 'HEAD')
match = FREEZE_MATCHER.match(msg)
if not match:
if not took_action:
return 'Nothing to thaw.'
run('reset', '--' + FREEZE_SECTIONS[], sha)
took_action = True
def topo_iter(branch_tree, top_down=True):
"""Generates (branch, parent) in topographical order for a branch tree.
Given a tree:
B1 B2
C1 C2 C3
branch_tree would look like: {
'D1': 'C3',
'C3': 'B2',
'B2': 'A1',
'C1': 'B1',
'C2': 'B1',
'B1': 'A1',
It is OK to have multiple 'root' nodes in your graph.
if top_down is True, items are yielded from A->D. Otherwise they're yielded
from D->A. Within a layer the branches will be yielded in sorted order.
branch_tree = branch_tree.copy()
# TODO(iannucci): There is probably a more efficient way to do these.
if top_down:
while branch_tree:
this_pass = [(b, p) for b, p in branch_tree.iteritems()
if p not in branch_tree]
assert this_pass, "Branch tree has cycles: %r" % branch_tree
for branch, parent in sorted(this_pass):
yield branch, parent
del branch_tree[branch]
parent_to_branches = collections.defaultdict(set)
for branch, parent in branch_tree.iteritems():
while branch_tree:
this_pass = [(b, p) for b, p in branch_tree.iteritems()
if not parent_to_branches[b]]
assert this_pass, "Branch tree has cycles: %r" % branch_tree
for branch, parent in sorted(this_pass):
yield branch, parent
del branch_tree[branch]
def tree(treeref, recurse=False):
"""Returns a dict representation of a git tree object.
treeref (str) - a git ref which resolves to a tree (commits count as trees).
recurse (bool) - include all of the tree's descendants too. File names will
take the form of 'some/path/to/file'.
Return format:
{ 'file_name': (mode, type, ref) }
mode is an integer where:
* 0040000 - Directory
* 0100644 - Regular non-executable file
* 0100664 - Regular non-executable group-writeable file
* 0100755 - Regular executable file
* 0120000 - Symbolic link
* 0160000 - Gitlink
type is a string where it's one of 'blob', 'commit', 'tree', 'tag'.
ref is the hex encoded hash of the entry.
ret = {}
opts = ['ls-tree', '--full-tree']
if recurse:
for line in run(*opts).splitlines():
mode, typ, ref, name = line.split(None, 3)
ret[name] = (mode, typ, ref)
except subprocess2.CalledProcessError:
return None
return ret
def get_remote_url(remote='origin'):
return run('config', 'remote.%s.url' % remote)
except subprocess2.CalledProcessError:
return None
def upstream(branch):
return run('rev-parse', '--abbrev-ref', '--symbolic-full-name',
except subprocess2.CalledProcessError:
return None
def get_git_version():
"""Returns a tuple that contains the numeric components of the current git
version_string = run('--version')
version_match ='(\d+.)+(\d+)', version_string)
version = if version_match else ''
return tuple(int(x) for x in version.split('.'))
def get_branches_info(include_tracking_status):
format_string = (
# This is not covered by the depot_tools CQ which only has git version 1.8.
if (include_tracking_status and
get_git_version() >= MIN_UPSTREAM_TRACK_GIT_VERSION): # pragma: no cover
format_string += '%(upstream:track)'
info_map = {}
data = run('for-each-ref', format_string, 'refs/heads')
BranchesInfo = collections.namedtuple(
'BranchesInfo', 'hash upstream ahead behind')
for line in data.splitlines():
(branch, branch_hash, upstream_branch, tracking_status) = line.split(':')
ahead_match ='ahead (\d+)', tracking_status)
ahead = int( if ahead_match else None
behind_match ='behind (\d+)', tracking_status)
behind = int( if behind_match else None
info_map[branch] = BranchesInfo(
hash=branch_hash, upstream=upstream_branch, ahead=ahead, behind=behind)
# Set None for upstreams which are not branches (e.g empty upstream, remotes
# and deleted upstream branches).
missing_upstreams = {}
for info in info_map.values():
if info.upstream not in info_map and info.upstream not in missing_upstreams:
missing_upstreams[info.upstream] = None
return dict(info_map.items() + missing_upstreams.items())
def make_workdir_common(repository, new_workdir, files_to_symlink,
files_to_copy, symlink=None):
if not symlink:
symlink = os.symlink
for entry in files_to_symlink:
clone_file(repository, new_workdir, entry, symlink)
for entry in files_to_copy:
clone_file(repository, new_workdir, entry, shutil.copy)
def make_workdir(repository, new_workdir):
make_workdir_common(repository, new_workdir, GIT_DIRECTORY_WHITELIST,
def clone_file(repository, new_workdir, link, operation):
if not os.path.exists(os.path.join(repository, link)):
link_dir = os.path.dirname(os.path.join(new_workdir, link))
if not os.path.exists(link_dir):
src = os.path.join(repository, link)
if os.path.islink(src):
src = os.path.realpath(src)
operation(src, os.path.join(new_workdir, link))