]> rtime.felk.cvut.cz Git - git.git/blob - git_remote_helpers/git/exporter.py
Merge branch 'mg/notes-dry-run'
[git.git] / git_remote_helpers / git / exporter.py
1 import os
2 import subprocess
3 import sys
4
5
6 class GitExporter(object):
7     """An exporter for testgit repositories.
8
9     The exporter simply delegates to git fast-export.
10     """
11
12     def __init__(self, repo):
13         """Creates a new exporter for the specified repo.
14         """
15
16         self.repo = repo
17
18     def export_repo(self, base):
19         """Exports a fast-export stream for the given directory.
20
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).
26         """
27
28         dirname = self.repo.get_base_path(base)
29         path = os.path.abspath(os.path.join(dirname, 'testgit.marks'))
30
31         if not os.path.exists(dirname):
32             os.makedirs(dirname)
33
34         print "feature relative-marks"
35         if os.path.exists(os.path.join(dirname, 'git.marks')):
36             print "feature import-marks=%s/git.marks" % self.repo.hash
37         print "feature export-marks=%s/git.marks" % self.repo.hash
38         sys.stdout.flush()
39
40         args = ["git", "--git-dir=" + self.repo.gitpath, "fast-export", "--export-marks=" + path]
41
42         if os.path.exists(path):
43             args.append("--import-marks=" + path)
44
45         args.append("HEAD")
46
47         p1 = subprocess.Popen(args, stdout=subprocess.PIPE)
48
49         args = ["sed", "s_refs/heads/_" + self.repo.prefix + "_g"]
50
51         subprocess.check_call(args, stdin=p1.stdout)