1 """Python GIT interface
5 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 import sys, os, re, gitmergeonefile
22 from shutil import copyfile
24 from stgit.exception import *
25 from stgit import basedir
26 from stgit.utils import *
27 from stgit.out import *
28 from stgit.run import *
29 from stgit.config import config
32 class GitException(StgException):
35 # When a subprocess has a problem, we want the exception to be a
36 # subclass of GitException.
37 class GitRunException(GitException):
41 def __init__(self, *cmd):
42 """Initialise the Run object and insert the 'git' command name.
44 Run.__init__(self, 'git', *cmd)
52 """An author, committer, etc."""
53 def __init__(self, name = None, email = None, date = '',
55 self.name = self.email = self.date = None
56 if name or email or date:
62 assert not (name or email or date)
64 m = re.match(r'^(.+)<(.+)>(.*)$', s)
66 return [x.strip() or None for x in m.groups()]
67 self.name, self.email, self.date = parse_desc(desc)
68 def set_name(self, val):
71 def set_email(self, val):
74 def set_date(self, val):
78 if self.name and self.email:
79 return '%s <%s>' % (self.name, self.email)
81 raise GitException, 'not enough identity data'
84 """Handle the commit objects
86 def __init__(self, id_hash):
87 self.__id_hash = id_hash
89 lines = GRun('cat-file', 'commit', id_hash).output_lines()
90 for i in range(len(lines)):
93 break # we've seen all the header fields
94 key, val = line.split(' ', 1)
99 elif key == 'committer':
100 self.__committer = val
102 pass # ignore other headers
103 self.__log = '\n'.join(lines[i+1:])
105 def get_id_hash(self):
106 return self.__id_hash
111 def get_parent(self):
112 parents = self.get_parents()
118 def get_parents(self):
119 return GRun('rev-list', '--parents', '--max-count=1', self.__id_hash
120 ).output_one_line().split()[1:]
122 def get_author(self):
125 def get_committer(self):
126 return self.__committer
132 return self.get_id_hash()
134 # dictionary of Commit objects, used to avoid multiple calls to git
141 def get_commit(id_hash):
142 """Commit objects factory. Save/look-up them in the __commits
147 if id_hash in __commits:
148 return __commits[id_hash]
150 commit = Commit(id_hash)
151 __commits[id_hash] = commit
155 """Return the list of file conflicts
157 conflicts_file = os.path.join(basedir.get(), 'conflicts')
158 if os.path.isfile(conflicts_file):
159 f = file(conflicts_file)
160 names = [line.strip() for line in f.readlines()]
167 files = [os.path.join(basedir.get(), 'info', 'exclude')]
168 user_exclude = config.get('core.excludesfile')
170 files.append(user_exclude)
173 def ls_files(files, tree = 'HEAD', full_name = True):
174 """Return the files known to GIT or raise an error otherwise. It also
175 converts the file to the full path relative the the .git directory.
182 args.append('--with-tree=%s' % tree)
184 args.append('--full-name')
188 return GRun('ls-files', '--error-unmatch', *args).output_lines()
189 except GitRunException:
190 # just hide the details of the 'git ls-files' command we use
191 raise GitException, \
192 'Some of the given paths are either missing or not known to GIT'
194 def tree_status(files = None, tree_id = 'HEAD', unknown = False,
195 noexclude = True, verbose = False, diff_flags = []):
196 """Get the status of all changed files, or of a selected set of
197 files. Returns a list of pairs - (status, filename).
199 If 'not files', it will check all files, and optionally all
200 unknown files. If 'files' is a list, it will only check the files
203 assert not files or not unknown
206 out.start('Checking for changes in the working directory')
216 cmd = ['ls-files', '-z', '--others', '--directory',
217 '--no-empty-directory']
219 cmd += ['--exclude=%s' % s for s in
220 ['*.[ao]', '*.pyc', '.*', '*~', '#*', 'TAGS', 'tags']]
221 cmd += ['--exclude-per-directory=.gitignore']
222 cmd += ['--exclude-from=%s' % fn
223 for fn in exclude_files()
224 if os.path.exists(fn)]
226 lines = GRun(*cmd).raw_output().split('\0')
227 cache_files += [('?', line) for line in lines if line]
230 conflicts = get_conflicts()
233 cache_files += [('C', filename) for filename in conflicts
234 if not files or filename in files]
235 reported_files = set(conflicts)
236 files_left = [f for f in files if f not in reported_files]
238 # files in the index. Only execute this code if no files were
239 # specified when calling the function (i.e. report all files) or
240 # files were specified but already found in the previous step
241 if not files or files_left:
242 args = diff_flags + [tree_id]
244 args += ['--'] + files_left
245 for line in GRun('diff-index', *args).output_lines():
246 fs = tuple(line.rstrip().split(' ',4)[-1].split('\t',1))
247 # the condition is needed in case files is emtpy and
248 # diff-index lists those already reported
249 if fs[1] not in reported_files:
250 cache_files.append(fs)
251 reported_files.add(fs[1])
252 files_left = [f for f in files if f not in reported_files]
254 # files in the index but changed on (or removed from) disk. Only
255 # execute this code if no files were specified when calling the
256 # function (i.e. report all files) or files were specified but
257 # already found in the previous step
258 if not files or files_left:
259 args = list(diff_flags)
261 args += ['--'] + files_left
262 for line in GRun('diff-files', *args).output_lines():
263 fs = tuple(line.rstrip().split(' ',4)[-1].split('\t',1))
264 # the condition is needed in case files is empty and
265 # diff-files lists those already reported
266 if fs[1] not in reported_files:
267 cache_files.append(fs)
268 reported_files.add(fs[1])
275 def local_changes(verbose = True):
276 """Return true if there are local changes in the tree
278 return len(tree_status(verbose = verbose)) != 0
282 hr = re.compile(r'^[0-9a-f]{40} refs/heads/(.+)$')
283 for line in GRun('show-ref', '--heads').output_lines():
285 heads.append(m.group(1))
292 """Verifies the HEAD and returns the SHA1 id that represents it
297 __head = rev_parse('HEAD')
300 class DetachedHeadException(GitException):
302 GitException.__init__(self, 'Not on any branch')
305 """Return the name of the file pointed to by the HEAD symref.
306 Throw an exception if HEAD is detached."""
309 'refs/heads/', GRun('symbolic-ref', '-q', 'HEAD'
311 except GitRunException:
312 raise DetachedHeadException()
314 def set_head_file(ref):
315 """Resets HEAD to point to a new ref
317 # head cache flushing is needed since we might have a different value
321 GRun('symbolic-ref', 'HEAD', 'refs/heads/%s' % ref).run()
322 except GitRunException:
323 raise GitException, 'Could not set head to "%s"' % ref
325 def set_ref(ref, val):
326 """Point ref at a new commit object."""
328 GRun('update-ref', ref, val).run()
329 except GitRunException:
330 raise GitException, 'Could not update %s to "%s".' % (ref, val)
332 def set_branch(branch, val):
333 set_ref('refs/heads/%s' % branch, val)
336 """Sets the HEAD value
340 if not __head or __head != val:
344 # only allow SHA1 hashes
345 assert(len(__head) == 40)
347 def __clear_head_cache():
348 """Sets the __head to None so that a re-read is forced
355 """Refresh index with stat() information from the working directory.
357 GRun('update-index', '-q', '--unmerged', '--refresh').run()
359 def rev_parse(git_id):
360 """Parse the string and return a verified SHA1 id
363 return GRun('rev-parse', '--verify', git_id
364 ).discard_stderr().output_one_line()
365 except GitRunException:
366 raise GitException, 'Unknown revision: %s' % git_id
375 def branch_exists(branch):
376 return ref_exists('refs/heads/%s' % branch)
378 def create_branch(new_branch, tree_id = None):
379 """Create a new branch in the git repository
381 if branch_exists(new_branch):
382 raise GitException, 'Branch "%s" already exists' % new_branch
384 current_head_file = get_head_file()
385 current_head = get_head()
386 set_head_file(new_branch)
387 __set_head(current_head)
389 # a checkout isn't needed if new branch points to the current head
394 # Tree switching failed. Revert the head file
395 set_head_file(current_head_file)
396 delete_branch(new_branch)
399 if os.path.isfile(os.path.join(basedir.get(), 'MERGE_HEAD')):
400 os.remove(os.path.join(basedir.get(), 'MERGE_HEAD'))
402 def switch_branch(new_branch):
403 """Switch to a git branch
407 if not branch_exists(new_branch):
408 raise GitException, 'Branch "%s" does not exist' % new_branch
410 tree_id = rev_parse('refs/heads/%s^{commit}' % new_branch)
411 if tree_id != get_head():
414 GRun('read-tree', '-u', '-m', get_head(), tree_id).run()
415 except GitRunException:
416 raise GitException, 'read-tree failed (local changes maybe?)'
418 set_head_file(new_branch)
420 if os.path.isfile(os.path.join(basedir.get(), 'MERGE_HEAD')):
421 os.remove(os.path.join(basedir.get(), 'MERGE_HEAD'))
424 if not ref_exists(ref):
425 raise GitException, '%s does not exist' % ref
426 sha1 = GRun('show-ref', '-s', ref).output_one_line()
428 GRun('update-ref', '-d', ref, sha1).run()
429 except GitRunException:
430 raise GitException, 'Failed to delete ref %s' % ref
432 def delete_branch(name):
433 delete_ref('refs/heads/%s' % name)
435 def rename_ref(from_ref, to_ref):
436 if not ref_exists(from_ref):
437 raise GitException, '"%s" does not exist' % from_ref
438 if ref_exists(to_ref):
439 raise GitException, '"%s" already exists' % to_ref
441 sha1 = GRun('show-ref', '-s', from_ref).output_one_line()
443 GRun('update-ref', to_ref, sha1, '0'*40).run()
444 except GitRunException:
445 raise GitException, 'Failed to create new ref %s' % to_ref
447 GRun('update-ref', '-d', from_ref, sha1).run()
448 except GitRunException:
449 raise GitException, 'Failed to delete ref %s' % from_ref
451 def rename_branch(from_name, to_name):
452 """Rename a git branch."""
453 rename_ref('refs/heads/%s' % from_name, 'refs/heads/%s' % to_name)
455 if get_head_file() == from_name:
456 set_head_file(to_name)
457 except DetachedHeadException:
458 pass # detached HEAD, so the renamee can't be the current branch
459 reflog_dir = os.path.join(basedir.get(), 'logs', 'refs', 'heads')
460 if os.path.exists(reflog_dir) \
461 and os.path.exists(os.path.join(reflog_dir, from_name)):
462 rename(reflog_dir, from_name, to_name)
465 """Add the files or recursively add the directory contents
467 # generate the file list
470 if not os.path.exists(i):
471 raise GitException, 'Unknown file or directory: %s' % i
474 # recursive search. We only add files
475 for root, dirs, local_files in os.walk(i):
476 for name in [os.path.join(root, f) for f in local_files]:
477 if os.path.isfile(name):
478 files.append(os.path.normpath(name))
479 elif os.path.isfile(i):
480 files.append(os.path.normpath(i))
482 raise GitException, '%s is not a file or directory' % i
486 GRun('update-index', '--add', '--').xargs(files)
487 except GitRunException:
488 raise GitException, 'Unable to add file'
490 def __copy_single(source, target, target2=''):
491 """Copy file or dir named 'source' to name target+target2"""
493 # "source" (file or dir) must match one or more git-controlled file
494 realfiles = GRun('ls-files', source).output_lines()
495 if len(realfiles) == 0:
496 raise GitException, '"%s" matches no git-controled files' % source
498 if os.path.isdir(source):
499 # physically copy the files, and record them to add them in one run
501 re_string='^'+source+'/(.*)$'
502 prefix_regexp = re.compile(re_string)
503 for f in [f.strip() for f in realfiles]:
504 m = prefix_regexp.match(f)
506 raise Exception, '"%s" does not match "%s"' % (f, re_string)
507 newname = target+target2+'/'+m.group(1)
508 if not os.path.exists(os.path.dirname(newname)):
509 os.makedirs(os.path.dirname(newname))
511 newfiles.append(newname)
514 else: # files, symlinks, ...
515 newname = target+target2
516 copyfile(source, newname)
520 def copy(filespecs, target):
521 if os.path.isdir(target):
522 # target is a directory: copy each entry on the command line,
523 # with the same name, into the target
524 target = target.rstrip('/')
526 # first, check that none of the children of the target
527 # matching the command line aleady exist
528 for filespec in filespecs:
529 entry = target+ '/' + os.path.basename(filespec.rstrip('/'))
530 if os.path.exists(entry):
531 raise GitException, 'Target "%s" already exists' % entry
533 for filespec in filespecs:
534 filespec = filespec.rstrip('/')
535 basename = '/' + os.path.basename(filespec)
536 __copy_single(filespec, target, basename)
538 elif os.path.exists(target):
539 raise GitException, 'Target "%s" exists but is not a directory' % target
540 elif len(filespecs) != 1:
541 raise GitException, 'Cannot copy more than one file to non-directory'
544 # at this point: len(filespecs)==1 and target does not exist
546 # check target directory
547 targetdir = os.path.dirname(target)
548 if targetdir != '' and not os.path.isdir(targetdir):
549 raise GitException, 'Target directory "%s" does not exist' % targetdir
551 __copy_single(filespecs[0].rstrip('/'), target)
554 def rm(files, force = False):
555 """Remove a file from the repository
559 if os.path.exists(f):
560 raise GitException, '%s exists. Remove it first' %f
562 GRun('update-index', '--remove', '--').xargs(files)
565 GRun('update-index', '--force-remove', '--').xargs(files)
573 """Return the user information.
577 name=config.get('user.name')
578 email=config.get('user.email')
579 __user = Person(name, email)
583 """Return the author information.
588 # the environment variables take priority over config
590 date = os.environ['GIT_AUTHOR_DATE']
593 __author = Person(os.environ['GIT_AUTHOR_NAME'],
594 os.environ['GIT_AUTHOR_EMAIL'],
601 """Return the author information.
606 # the environment variables take priority over config
608 date = os.environ['GIT_COMMITTER_DATE']
611 __committer = Person(os.environ['GIT_COMMITTER_NAME'],
612 os.environ['GIT_COMMITTER_EMAIL'],
618 def update_cache(files = None, force = False):
619 """Update the cache information for the given files
621 cache_files = tree_status(files, verbose = False)
623 # everything is up-to-date
624 if len(cache_files) == 0:
627 # check for unresolved conflicts
628 if not force and [x for x in cache_files
629 if x[0] not in ['M', 'N', 'A', 'D']]:
630 raise GitException, 'Updating cache failed: unresolved conflicts'
633 add_files = [x[1] for x in cache_files if x[0] in ['N', 'A']]
634 rm_files = [x[1] for x in cache_files if x[0] in ['D']]
635 m_files = [x[1] for x in cache_files if x[0] in ['M']]
637 GRun('update-index', '--add', '--').xargs(add_files)
638 GRun('update-index', '--force-remove', '--').xargs(rm_files)
639 GRun('update-index', '--').xargs(m_files)
643 def commit(message, files = None, parents = None, allowempty = False,
644 cache_update = True, tree_id = None, set_head = False,
645 author_name = None, author_email = None, author_date = None,
646 committer_name = None, committer_email = None):
647 """Commit the current tree to repository
652 # Get the tree status
653 if cache_update and parents != []:
654 changes = update_cache(files)
655 if not changes and not allowempty:
656 raise GitException, 'No changes to commit'
658 # get the commit message
661 elif message[-1:] != '\n':
664 # write the index to repository
666 tree_id = GRun('write-tree').output_one_line()
672 env['GIT_AUTHOR_NAME'] = author_name
674 env['GIT_AUTHOR_EMAIL'] = author_email
676 env['GIT_AUTHOR_DATE'] = author_date
678 env['GIT_COMMITTER_NAME'] = committer_name
680 env['GIT_COMMITTER_EMAIL'] = committer_email
681 commit_id = GRun('commit-tree', tree_id,
682 *sum([['-p', p] for p in parents], [])
683 ).env(env).raw_input(message).output_one_line()
685 __set_head(commit_id)
689 def apply_diff(rev1, rev2, check_index = True, files = None):
690 """Apply the diff between rev1 and rev2 onto the current
691 index. This function doesn't need to raise an exception since it
692 is only used for fast-pushing a patch. If this operation fails,
693 the pushing would fall back to the three-way merge.
696 index_opt = ['--index']
703 diff_str = diff(files, rev1, rev2)
706 GRun('apply', *index_opt).raw_input(
707 diff_str).discard_stderr().no_output()
708 except GitRunException:
713 def merge(base, head1, head2, recursive = False):
714 """Perform a 3-way merge between base, head1 and head2 into the
721 # this operation tracks renames but it is slower (used in
722 # general when pushing or picking patches)
724 # discard output to mask the verbose prints of the tool
725 GRun('merge-recursive', base, '--', head1, head2
727 except GitRunException, ex:
731 # the fast case where we don't track renames (used when the
732 # distance between base and heads is small, i.e. folding or
733 # synchronising patches)
735 GRun('read-tree', '-u', '-m', '--aggressive',
736 base, head1, head2).run()
737 except GitRunException:
738 raise GitException, 'read-tree failed (local changes maybe?)'
740 # check the index for unmerged entries
742 stages_re = re.compile('^([0-7]+) ([0-9a-f]{40}) ([1-3])\t(.*)$', re.S)
744 for line in GRun('ls-files', '--unmerged', '--stage', '-z'
745 ).raw_output().split('\0'):
749 mode, hash, stage, path = stages_re.findall(line)[0]
751 if not path in files:
753 files[path]['1'] = ('', '')
754 files[path]['2'] = ('', '')
755 files[path]['3'] = ('', '')
757 files[path][stage] = (mode, hash)
759 if err_output and not files:
760 # if no unmerged files, there was probably a different type of
761 # error and we have to abort the merge
762 raise GitException, err_output
764 # merge the unmerged files
767 # remove additional files that might be generated for some
768 # newer versions of GIT
769 for suffix in [base, head1, head2]:
772 fname = path + '~' + suffix
773 if os.path.exists(fname):
777 if gitmergeonefile.merge(stages['1'][1], stages['2'][1],
778 stages['3'][1], path, stages['1'][0],
779 stages['2'][0], stages['3'][0]) != 0:
783 raise GitException, 'GIT index merging failed (possible conflicts)'
785 def diff(files = None, rev1 = 'HEAD', rev2 = None, diff_flags = [],
787 """Show the diff between rev1 and rev2
791 if binary and '--binary' not in diff_flags:
792 diff_flags = diff_flags + ['--binary']
795 return GRun('diff-tree', '-p',
796 *(diff_flags + [rev1, rev2, '--'] + files)).raw_output()
800 return GRun('diff-index', '-p', '-R',
801 *(diff_flags + [rev2, '--'] + files)).raw_output()
803 return GRun('diff-index', '-p',
804 *(diff_flags + [rev1, '--'] + files)).raw_output()
808 # TODO: take another parameter representing a diff string as we
809 # usually invoke git.diff() form the calling functions
810 def diffstat(files = None, rev1 = 'HEAD', rev2 = None):
811 """Return the diffstat between rev1 and rev2."""
812 return GRun('apply', '--stat', '--summary'
813 ).raw_input(diff(files, rev1, rev2)).raw_output()
815 def files(rev1, rev2, diff_flags = []):
816 """Return the files modified between rev1 and rev2
820 for line in GRun('diff-tree', *(diff_flags + ['-r', rev1, rev2])
822 result.append('%s %s' % tuple(line.split(' ', 4)[-1].split('\t', 1)))
824 return '\n'.join(result)
826 def barefiles(rev1, rev2):
827 """Return the files modified between rev1 and rev2, without status info
831 for line in GRun('diff-tree', '-r', rev1, rev2).output_lines():
832 result.append(line.split(' ', 4)[-1].split('\t', 1)[-1])
834 return '\n'.join(result)
836 def pretty_commit(commit_id = 'HEAD', flags = []):
837 """Return a given commit (log + diff)
839 return GRun('show', *(flags + [commit_id])).raw_output()
841 def checkout(files = None, tree_id = None, force = False):
842 """Check out the given or all files
846 GRun('read-tree', '--reset', tree_id).run()
847 except GitRunException:
848 raise GitException, 'Failed "git read-tree" --reset %s' % tree_id
850 cmd = ['checkout-index', '-q', '-u']
854 GRun(*(cmd + ['--'])).xargs(files)
856 GRun(*(cmd + ['-a'])).run()
858 def switch(tree_id, keep = False):
859 """Switch the tree to the given id
862 # only update the index while keeping the local changes
863 GRun('read-tree', tree_id).run()
867 GRun('read-tree', '-u', '-m', get_head(), tree_id).run()
868 except GitRunException:
869 raise GitException, 'read-tree failed (local changes maybe?)'
873 def reset(files = None, tree_id = None, check_out = True):
874 """Revert the tree changes relative to the given tree_id. It removes
881 cache_files = tree_status(files, tree_id)
882 # files which were added but need to be removed
883 rm_files = [x[1] for x in cache_files if x[0] in ['A']]
885 checkout(files, tree_id, True)
886 # checkout doesn't remove files
887 map(os.remove, rm_files)
889 # if the reset refers to the whole tree, switch the HEAD as well
893 def fetch(repository = 'origin', refspec = None):
894 """Fetches changes from the remote repository, using 'git fetch'
904 command = config.get('branch.%s.stgit.fetchcmd' % get_head_file()) or \
905 config.get('stgit.fetchcmd')
906 Run(*(command.split() + args)).run()
908 def pull(repository = 'origin', refspec = None):
909 """Fetches changes from the remote repository, using 'git pull'
919 command = config.get('branch.%s.stgit.pullcmd' % get_head_file()) or \
920 config.get('stgit.pullcmd')
921 Run(*(command.split() + args)).run()
923 def rebase(tree_id = None):
924 """Rebase the current tree to the give tree_id. The tree_id
925 argument may be something other than a GIT id if an external
928 command = config.get('branch.%s.stgit.rebasecmd' % get_head_file()) \
929 or config.get('stgit.rebasecmd')
935 raise GitException, 'Default rebasing requires a commit id'
937 # clear the HEAD cache as the custom rebase command will update it
939 Run(*(command.split() + args)).run()
942 reset(tree_id = tree_id)
945 """Repack all objects into a single pack
947 GRun('repack', '-a', '-d', '-f').run()
949 def apply_patch(filename = None, diff = None, base = None,
951 """Apply a patch onto the current or given index. There must not
952 be any local changes in the tree, otherwise the command fails
964 orig_head = get_head()
970 GRun('apply', '--index').raw_input(diff).no_output()
971 except GitRunException:
975 # write the failed diff to a file
976 f = file('.stgit-failed.patch', 'w+')
979 out.warn('Diff written to the .stgit-failed.patch file')
984 top = commit(message = 'temporary commit used for applying a patch',
987 merge(base, orig_head, top)
989 def clone(repository, local_dir):
990 """Clone a remote repository. At the moment, just use the
993 GRun('clone', repository, local_dir).run()
995 def modifying_revs(files, base_rev, head_rev):
996 """Return the revisions from the list modifying the given files."""
997 return GRun('rev-list', '%s..%s' % (base_rev, head_rev), '--', *files
1000 def refspec_localpart(refspec):
1001 m = re.match('^[^:]*:([^:]*)$', refspec)
1005 raise GitException, 'Cannot parse refspec "%s"' % line
1007 def refspec_remotepart(refspec):
1008 m = re.match('^([^:]*):[^:]*$', refspec)
1012 raise GitException, 'Cannot parse refspec "%s"' % line
1014 def __remotes_from_config():
1015 return config.sections_matching(r'remote\.(.*)\.url')
1017 def __remotes_from_dir(dir):
1018 d = os.path.join(basedir.get(), dir)
1019 if os.path.exists(d):
1020 return os.listdir(d)
1025 """Return the list of remotes in the repository
1027 return (set(__remotes_from_config())
1028 | set(__remotes_from_dir('remotes'))
1029 | set(__remotes_from_dir('branches')))
1031 def remotes_local_branches(remote):
1032 """Returns the list of local branches fetched from given remote
1036 if remote in __remotes_from_config():
1037 for line in config.getall('remote.%s.fetch' % remote):
1038 branches.append(refspec_localpart(line))
1039 elif remote in __remotes_from_dir('remotes'):
1040 stream = open(os.path.join(basedir.get(), 'remotes', remote), 'r')
1042 # Only consider Pull lines
1043 m = re.match('^Pull: (.*)\n$', line)
1045 branches.append(refspec_localpart(m.group(1)))
1047 elif remote in __remotes_from_dir('branches'):
1048 # old-style branches only declare one branch
1049 branches.append('refs/heads/'+remote);
1051 raise GitException, 'Unknown remote "%s"' % remote
1055 def identify_remote(branchname):
1056 """Return the name for the remote to pull the given branchname
1057 from, or None if we believe it is a local branch.
1060 for remote in remotes_list():
1061 if branchname in remotes_local_branches(remote):
1064 # if we get here we've found nothing, the branch is a local one
1068 """Return the git id for the tip of the parent branch as left by
1073 stream = open(os.path.join(basedir.get(), 'FETCH_HEAD'), "r")
1075 # Only consider lines not tagged not-for-merge
1076 m = re.match('^([^\t]*)\t\t', line)
1079 raise GitException, 'StGit does not support multiple FETCH_HEAD'
1081 fetch_head=m.group(1)
1085 out.warn('No for-merge remote head found in FETCH_HEAD')
1087 # here we are sure to have a single fetch_head
1091 """Return a list of all refs in the current repository.
1094 return [line.split()[1] for line in GRun('show-ref').output_lines()]