We want to know the list of declared remotes, the local branches they
hold, and which remotes holds a given branch. All this regardless of
where the information is stored.
If there are any git-1.5 remotes declared in .git/config, we suppose
you know what you're doing and they will take precedence on any
pre-1.5 remotes.
This does not use git-remote for now, since it is 1.5 material not
released yet, does not support legacy branches/ remotes, and does not
allow yet to query all of the information we need.
Signed-off-by: Yann Dirson <ydirson@xxxxxxxxxx>
---
stgit/git.py | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 68 insertions(+), 0 deletions(-)
diff --git a/stgit/git.py b/stgit/git.py
index 249080e..038aaac 100644
--- a/stgit/git.py
+++ b/stgit/git.py
@@ -881,3 +881,71 @@ def modifying_revs(files, base_rev):
revs = [line.strip() for line in _output_lines(cmd + files)]
return revs
+
+
+def refspec_localpart(refspec):
+ m = re.match('^[^:]*:([^:]*)$', refspec)
+ if m:
+ return m.group(1)
+ else:
+ raise GitException, 'Cannot parse refspec "%s"' % line
+
+def refspec_remotepart(refspec):
+ m = re.match('^([^:]*):[^:]*$', refspec)
+ if m:
+ return m.group(1)
+ else:
+ raise GitException, 'Cannot parse refspec "%s"' % line
+
+
+def __remotes_from_config():
+ return config.sections_matching(r'remote\.(.*)\.url')
+
+def __remotes_from_dir(dir):
+ return os.listdir(os.path.join(basedir.get(), dir))
+
+def remotes_list():
+ """Return the list of remotes in the repository
+ """
+
+ return set(__remotes_from_config()) | \
+ set(__remotes_from_dir('remotes')) | \
+ set(__remotes_from_dir('branches'))
+
+def remotes_local_branches(remote):
+ """Returns the list of local branches fetched from given remote
+ """
+
+ branches = []
+ if remote in __remotes_from_config():
+ for line in config.getall('remote.%s.fetch' % remote):
+ branches.append(refspec_localpart(line))
+ elif remote in __remotes_from_dir('remotes'):
+ stream = open(os.path.join(basedir.get(), 'remotes', remote), 'r')
+ for line in stream:
+ # Only consider Pull lines
+ m = re.match('^Pull: (.*)\n$', line)
+ branches.append(refspec_localpart(m.group(1)))
+ stream.close()
+ elif remote in __remotes_from_dir('branches'):
+ # old-style branches only declare one branch
+ branches.append('refs/heads/'+remote);
+ else:
+ raise GitException, 'Unknown remote "%s"' % remote
+
+ return branches
+
+def identify_remote(branchname):
+ """Return the name for the remote to pull the given branchname
+ from, or None if we believe it is a local branch.
+ """
+
+ for remote in remotes_list():
+ if branchname in remotes_local_branches(remote):
+ return remote
+
+ # FIXME: in the case of local branch we should maybe set remote to
+ # "." but are we even sure it is the only case left ?
+
+ # if we get here we've found nothing
+ return None
-
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