Mercurial > hg > config
annotate python/hg-merge.py @ 547:2b0d254d4271
-> example
author | Jeff Hammel <jhammel@mozilla.com> |
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date | Wed, 13 Nov 2013 20:41:56 -0800 |
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1 #!/usr/bin/env python |
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2 |
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3 """ |
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4 merge mercurial repositories |
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5 |
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6 Example: |
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7 hg-merge.py --master http://hg.mozilla.org/build/talos http://hg.mozilla.org/build/pageloader#talos/pageloader |
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8 """ |
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9 |
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10 import optparse |
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11 import os |
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12 import shutil |
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13 import subprocess |
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14 import sys |
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15 import tempfile |
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16 import urlparse |
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17 try: |
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18 from subprocess import check_call as call |
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19 except: |
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20 from subprocess import call |
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21 |
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22 def url2filename(url): |
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23 """gets a filename from a url""" |
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24 scheme, netloc, path, query, fragment = urlparse.urlsplit(url) |
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25 path = path.rstrip('/') |
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26 assert path and '/' in path |
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27 return path.split('/')[-1] |
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28 |
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29 def manifest(hgrepo): |
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30 """manifest of a local hg repository""" |
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31 process = subprocess.Popen(['hg', 'manifest'], cwd=hgrepo, stdout=subprocess.PIPE) |
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32 stdout, stderr = process.communicate() |
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33 assert not process.returncode |
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34 manifest = stdout.strip().splitlines() |
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35 return set(manifest) |
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36 |
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37 def merge(hgroot, repo, subpath=None): |
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38 """merge repo to hgroot at subpath (None for repository root)""" |
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39 |
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40 # get a manifest of the current repository |
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41 root_manifest = manifest(hgroot) |
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42 toplevel_contents = os.listdir(hgroot) |
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43 |
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44 # staging area |
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45 tempdir = tempfile.mkdtemp() |
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46 fd, tmpfile = tempfile.mkstemp() |
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47 os.close(fd) |
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48 |
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49 exception = None |
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50 try: |
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51 |
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52 # clone the repository to be merged in |
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53 call(['hg', 'clone', repo, tempdir]) |
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54 |
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55 # check manifest for conflicts |
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56 repo_manifest = manifest(tempdir) |
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57 assert repo_manifest, "Empty repository: %s" % repo |
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58 intersection = root_manifest.intersection(repo_manifest) |
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59 assert not intersection, "Overlap between %s and %s: %s" % (hgroot, repo, intersection) |
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60 |
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61 # create a bundle |
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62 call(['hg', 'bundle', tmpfile, '--all'], cwd=tempdir) |
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63 |
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64 # apply the bundle |
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65 call(['hg', 'unbundle', tmpfile], cwd=hgroot) |
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66 call(['hg', 'merge'], cwd=hgroot) |
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67 |
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68 if subpath: |
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69 # move the new files to their new locations |
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70 for item in repo_manifest: |
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71 path = os.path.join(subpath, item) |
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72 fullpath = os.path.join(hgroot, path) |
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73 assert not os.path.exists(fullpath), "%s already exists" % fullpath |
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74 subdirectory = os.path.dirname(fullpath) |
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75 if not os.path.exists(subdirectory): |
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76 os.makedirs(subdirectory) |
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77 call(['hg', 'mv', item, path], cwd=hgroot) |
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78 call(['hg', 'commit', '-m', 'merge %s to %s' % (repo, subpath)], cwd=hgroot) |
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79 else: |
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80 call(['hg', 'commit', '-m', 'merge in %s' % repo], cwd=hgroot) |
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81 |
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82 except Exception, exception: |
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83 pass # reraise on cleanup |
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84 |
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85 # cleanup |
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86 shutil.rmtree(tempdir) |
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87 os.remove(tmpfile) |
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88 if exception is not None: |
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89 raise exception |
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90 |
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91 def main(args=sys.argv[1:]): |
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92 |
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93 # parse command line options |
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94 usage = "%prog [options] http://hg.example.com/repository/path#destination/path [...]" |
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95 parser = optparse.OptionParser(usage=usage, description=__doc__) |
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96 parser.add_option('-m', '--master', dest='master', |
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97 help="use this as the master repository (new clone, otherwise use CWD)") |
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98 options, args = parser.parse_args(args) |
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99 if not args: |
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100 parser.print_help() |
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101 parser.exit() |
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102 |
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103 if options.master: |
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104 # clone the new repository |
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105 directory = url2filename(options.master) |
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106 if os.path.exists(directory): |
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107 shutil.rmtree(directory) |
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108 call(['hg', 'clone', options.master]) |
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109 hgroot = os.path.join(os.getcwd(), directory) |
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110 else: |
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111 # get the root of the repository |
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112 process = subprocess.Popen(['hg', 'root'], stdout=subprocess.PIPE) |
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113 hgroot, stderr = process.communicate() |
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114 hgroot = hgroot.strip() |
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115 if process.returncode: |
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116 sys.exit(1) |
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117 assert os.path.exists(hgroot) and os.path.isdir(hgroot), "%s not found" % hgroot |
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118 |
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119 # get the other repos to add |
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120 for repo in args: |
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121 subpath = None |
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122 if '#' in repo: |
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123 repo, subpath = repo.rsplit('#', 1) |
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124 merge(hgroot, repo, subpath) |
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125 |
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126 if __name__ == '__main__': |
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127 main() |