From 7aeaa2fc0abbf439534769e15b3a59a5814cc3d1 Mon Sep 17 00:00:00 2001 From: Sverre Rabbelier Date: Mon, 29 Mar 2010 11:48:28 -0500 Subject: remote-helpers: add testgit helper Currently the remote helper infrastructure is only used by the curl helper, which does not give a good impression of how remote helpers can be used to interact with foreign repositories. Since implementing such a helper is non-trivial it would be good to have at least one easy-to-follow example demonstrating how to implement a helper that interacts with a foreign vcs using fast-import/fast-export. The testgit helper can be used to interact with remote git repositories by prefixing the url with "testgit::". Signed-off-by: Junio C Hamano --- git_remote_helpers/git/repo.py | 70 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 git_remote_helpers/git/repo.py (limited to 'git_remote_helpers/git/repo.py') diff --git a/git_remote_helpers/git/repo.py b/git_remote_helpers/git/repo.py new file mode 100644 index 0000000000..82d5f78c7e --- /dev/null +++ b/git_remote_helpers/git/repo.py @@ -0,0 +1,70 @@ +import os +import subprocess + +def sanitize(rev, sep='\t'): + """Converts a for-each-ref line to a name/value pair. + """ + + splitrev = rev.split(sep) + branchval = splitrev[0] + branchname = splitrev[1].strip() + if branchname.startswith("refs/heads/"): + branchname = branchname[11:] + + return branchname, branchval + +def is_remote(url): + """Checks whether the specified value is a remote url. + """ + + prefixes = ["http", "file", "git"] + + return any(url.startswith(i) for i in prefixes) + +class GitRepo(object): + """Repo object representing a repo. + """ + + def __init__(self, path): + """Initializes a new repo at the given path. + """ + + self.path = path + self.head = None + self.revmap = {} + self.local = not is_remote(self.path) + + if(self.path.endswith('.git')): + self.gitpath = self.path + else: + self.gitpath = os.path.join(self.path, '.git') + + if self.local and not os.path.exists(self.gitpath): + os.makedirs(self.gitpath) + + def get_revs(self): + """Fetches all revs from the remote. + """ + + args = ["git", "ls-remote", self.gitpath] + path = ".cached_revs" + ofile = open(path, "w") + + subprocess.check_call(args, stdout=ofile) + output = open(path).readlines() + self.revmap = dict(sanitize(i) for i in output) + if "HEAD" in self.revmap: + del self.revmap["HEAD"] + self.revs = self.revmap.keys() + ofile.close() + + def get_head(self): + """Determines the head of a local repo. + """ + + if not self.local: + return + + path = os.path.join(self.gitpath, "HEAD") + head = open(path).readline() + self.head, _ = sanitize(head, ' ') -- cgit v1.2.1