1 import os
2 import subprocess
3 import sys
6 class GitExporter(object):
7 """An exporter for testgit repositories.
9 The exporter simply delegates to git fast-export.
10 """
12 def __init__(self, repo):
13 """Creates a new exporter for the specified repo.
14 """
16 self.repo = repo
18 def export_repo(self, base, refs=None):
19 """Exports a fast-export stream for the given directory.
21 Simply delegates to git fast-epxort and pipes it through sed
22 to make the refs show up under the prefix rather than the
23 default refs/heads. This is to demonstrate how the export
24 data can be stored under it's own ref (using the refspec
25 capability).
27 If None, refs defaults to ["HEAD"].
28 """
30 if not refs:
31 refs = ["HEAD"]
33 dirname = self.repo.get_base_path(base)
34 path = os.path.abspath(os.path.join(dirname, 'testgit.marks'))
36 if not os.path.exists(dirname):
37 os.makedirs(dirname)
39 print "feature relative-marks"
40 if os.path.exists(os.path.join(dirname, 'git.marks')):
41 print "feature import-marks=%s/git.marks" % self.repo.hash
42 print "feature export-marks=%s/git.marks" % self.repo.hash
43 sys.stdout.flush()
45 args = ["git", "--git-dir=" + self.repo.gitpath, "fast-export", "--export-marks=" + path]
47 if os.path.exists(path):
48 args.append("--import-marks=" + path)
50 args.extend(refs)
52 p1 = subprocess.Popen(args, stdout=subprocess.PIPE)
54 args = ["sed", "s_refs/heads/_" + self.repo.prefix + "_g"]
56 child = subprocess.Popen(args, stdin=p1.stdout)
57 if child.wait() != 0:
58 raise CalledProcessError