diff options
Diffstat (limited to 'git_remote_helpers/git')
| -rw-r--r-- | git_remote_helpers/git/exporter.py | 51 | ||||
| -rw-r--r-- | git_remote_helpers/git/importer.py | 38 | ||||
| -rw-r--r-- | git_remote_helpers/git/non_local.py | 61 | ||||
| -rw-r--r-- | git_remote_helpers/git/repo.py | 70 |
4 files changed, 220 insertions, 0 deletions
diff --git a/git_remote_helpers/git/exporter.py b/git_remote_helpers/git/exporter.py new file mode 100644 index 0000000..dfaab00 --- /dev/null +++ b/git_remote_helpers/git/exporter.py @@ -0,0 +1,51 @@ +import os +import subprocess +import sys + + +class GitExporter(object): + """An exporter for testgit repositories. + + The exporter simply delegates to git fast-export. + """ + + def __init__(self, repo): + """Creates a new exporter for the specified repo. + """ + + self.repo = repo + + def export_repo(self, base): + """Exports a fast-export stream for the given directory. + + Simply delegates to git fast-epxort and pipes it through sed + to make the refs show up under the prefix rather than the + default refs/heads. This is to demonstrate how the export + data can be stored under it's own ref (using the refspec + capability). + """ + + dirname = self.repo.get_base_path(base) + path = os.path.abspath(os.path.join(dirname, 'testgit.marks')) + + if not os.path.exists(dirname): + os.makedirs(dirname) + + print "feature relative-marks" + if os.path.exists(os.path.join(dirname, 'git.marks')): + print "feature import-marks=%s/git.marks" % self.repo.hash + print "feature export-marks=%s/git.marks" % self.repo.hash + sys.stdout.flush() + + args = ["git", "--git-dir=" + self.repo.gitpath, "fast-export", "--export-marks=" + path] + + if os.path.exists(path): + args.append("--import-marks=" + path) + + args.append("HEAD") + + p1 = subprocess.Popen(args, stdout=subprocess.PIPE) + + args = ["sed", "s_refs/heads/_" + self.repo.prefix + "_g"] + + subprocess.check_call(args, stdin=p1.stdout) diff --git a/git_remote_helpers/git/importer.py b/git_remote_helpers/git/importer.py new file mode 100644 index 0000000..af2919d --- /dev/null +++ b/git_remote_helpers/git/importer.py @@ -0,0 +1,38 @@ +import os +import subprocess + + +class GitImporter(object): + """An importer for testgit repositories. + + This importer simply delegates to git fast-import. + """ + + def __init__(self, repo): + """Creates a new importer for the specified repo. + """ + + self.repo = repo + + def do_import(self, base): + """Imports a fast-import stream to the given directory. + + Simply delegates to git fast-import. + """ + + dirname = self.repo.get_base_path(base) + if self.repo.local: + gitdir = self.repo.gitpath + else: + gitdir = os.path.abspath(os.path.join(dirname, '.git')) + path = os.path.abspath(os.path.join(dirname, 'git.marks')) + + if not os.path.exists(dirname): + os.makedirs(dirname) + + args = ["git", "--git-dir=" + gitdir, "fast-import", "--quiet", "--export-marks=" + path] + + if os.path.exists(path): + args.append("--import-marks=" + path) + + subprocess.check_call(args) diff --git a/git_remote_helpers/git/non_local.py b/git_remote_helpers/git/non_local.py new file mode 100644 index 0000000..d75ef8f --- /dev/null +++ b/git_remote_helpers/git/non_local.py @@ -0,0 +1,61 @@ +import os +import subprocess + +from git_remote_helpers.util import die, warn + + +class NonLocalGit(object): + """Handler to interact with non-local repos. + """ + + def __init__(self, repo): + """Creates a new non-local handler for the specified repo. + """ + + self.repo = repo + + def clone(self, base): + """Clones the non-local repo to base. + + Does nothing if a clone already exists. + """ + + path = os.path.join(self.repo.get_base_path(base), '.git') + + # already cloned + if os.path.exists(path): + return path + + os.makedirs(path) + args = ["git", "clone", "--bare", "--quiet", self.repo.gitpath, path] + + subprocess.check_call(args) + + return path + + def update(self, base): + """Updates checkout of the non-local repo in base. + """ + + path = os.path.join(self.repo.get_base_path(base), '.git') + + if not os.path.exists(path): + die("could not find repo at %s", path) + + args = ["git", "--git-dir=" + path, "fetch", "--quiet", self.repo.gitpath] + subprocess.check_call(args) + + args = ["git", "--git-dir=" + path, "update-ref", "refs/heads/master", "FETCH_HEAD"] + subprocess.check_call(args) + + def push(self, base): + """Pushes from the non-local repo to base. + """ + + path = os.path.join(self.repo.get_base_path(base), '.git') + + if not os.path.exists(path): + die("could not find repo at %s", path) + + args = ["git", "--git-dir=" + path, "push", "--quiet", self.repo.gitpath] + subprocess.check_call(args) diff --git a/git_remote_helpers/git/repo.py b/git_remote_helpers/git/repo.py new file mode 100644 index 0000000..82d5f78 --- /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, ' ') |