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Copy pathutil.py
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94 lines (70 loc) · 2.68 KB
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import git
from git.exc import InvalidGitRepositoryError
from git.config import GitConfigParser
from io import BytesIO
import weakref
__all__ = ('sm_section', 'sm_name', 'mkhead', 'find_first_remote_branch',
'SubmoduleConfigParser')
#{ Utilities
def sm_section(name):
""":return: section title used in .gitmodules configuration file"""
return 'submodule "%s"' % name
def sm_name(section):
""":return: name of the submodule as parsed from the section name"""
section = section.strip()
return section[11:-1]
def mkhead(repo, path):
""":return: New branch/head instance"""
return git.Head(repo, git.Head.to_full_path(path))
def find_first_remote_branch(remotes, branch_name):
"""Find the remote branch matching the name of the given branch or raise InvalidGitRepositoryError"""
for remote in remotes:
try:
return remote.refs[branch_name]
except IndexError:
continue
# END exception handling
# END for remote
raise InvalidGitRepositoryError("Didn't find remote branch '%r' in any of the given remotes" % branch_name)
#} END utilities
#{ Classes
class SubmoduleConfigParser(GitConfigParser):
"""
Catches calls to _write, and updates the .gitmodules blob in the index
with the new data, if we have written into a stream. Otherwise it will
add the local file to the index to make it correspond with the working tree.
Additionally, the cache must be cleared
Please note that no mutating method will work in bare mode
"""
def __init__(self, *args, **kwargs):
self._smref = None
self._index = None
self._auto_write = True
super(SubmoduleConfigParser, self).__init__(*args, **kwargs)
#{ Interface
def set_submodule(self, submodule):
"""Set this instance's submodule. It must be called before
the first write operation begins"""
self._smref = weakref.ref(submodule)
def flush_to_index(self):
"""Flush changes in our configuration file to the index"""
assert self._smref is not None
# should always have a file here
assert not isinstance(self._file_or_files, BytesIO)
sm = self._smref()
if sm is not None:
index = self._index
if index is None:
index = sm.repo.index
# END handle index
index.add([sm.k_modules_file], write=self._auto_write)
sm._clear_cache()
# END handle weakref
#} END interface
#{ Overridden Methods
def write(self):
rval = super(SubmoduleConfigParser, self).write()
self.flush_to_index()
return rval
# END overridden methods
#} END classes