Mercurial > hg > mercurial-crew-with-dirclash

annotate hgext/convert/git.py @ 4753:07efcce17d28

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convert: add -r argument specifying latest revision to convert
author Brendan Cully <brendan@kublai.com>
date Sun, 01 Jul 2007 15:02:15 -0700
parents 20ec5cc02f18
children 2d0a823cbba5
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1 # git support for the convert extension
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2
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3 import os
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4
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5 from common import NoRepo, commit, converter_source
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6
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7 class convert_git(converter_source):
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8 def __init__(self, ui, path, rev=None):
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9 if os.path.isdir(path + "/.git"):
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10 path += "/.git"
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11 if not os.path.exists(path + "/objects"):
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12 raise NoRepo("couldn't open GIT repo %s" % path)
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13
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14 self.path = path
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15 self.ui = ui
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16 self.rev = rev
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17 self.encoding = 'utf-8'
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18
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19 def getheads(self):
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20 rev = self.rev or 'HEAD'
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21 fh = os.popen("GIT_DIR=%s git-rev-parse --verify %s" % (self.path, rev))
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22 return [fh.read()[:-1]]
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23
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24 def catfile(self, rev, type):
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25 if rev == "0" * 40: raise IOError()
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26 fh = os.popen("GIT_DIR=%s git-cat-file %s %s 2>/dev/null"
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27 % (self.path, type, rev))
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28 return fh.read()
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29
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30 def getfile(self, name, rev):
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31 return self.catfile(rev, "blob")
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32
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33 def getmode(self, name, rev):
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34 return self.modecache[(name, rev)]
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35
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36 def getchanges(self, version):
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37 self.modecache = {}
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38 fh = os.popen("GIT_DIR=%s git-diff-tree --root -m -r %s"
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39 % (self.path, version))
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40 changes = []
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41 for l in fh:
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42 if "\t" not in l: continue
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43 m, f = l[:-1].split("\t")
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44 m = m.split()
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45 h = m[3]
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46 p = (m[1] == "100755")
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47 s = (m[1] == "120000")
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48 self.modecache[(f, h)] = (p and "x") or (s and "l") or ""
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49 changes.append((f, h))
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50 return changes
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51
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52 def getcommit(self, version):
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53 c = self.catfile(version, "commit") # read the commit hash
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54 end = c.find("\n\n")
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55 message = c[end+2:]
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56 message = self.recode(message)
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57 l = c[:end].splitlines()
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58 manifest = l[0].split()[1]
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59 parents = []
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60 for e in l[1:]:
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61 n, v = e.split(" ", 1)
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62 if n == "author":
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63 p = v.split()
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64 tm, tz = p[-2:]
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65 author = " ".join(p[:-2])
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66 if author[0] == "<": author = author[1:-1]
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67 author = self.recode(author)
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68 if n == "committer":
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69 p = v.split()
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70 tm, tz = p[-2:]
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71 committer = " ".join(p[:-2])
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72 if committer[0] == "<": committer = committer[1:-1]
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73 committer = self.recode(committer)
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74 message += "\ncommitter: %s\n" % committer
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75 if n == "parent": parents.append(v)
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76
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77 tzs, tzh, tzm = tz[-5:-4] + "1", tz[-4:-2], tz[-2:]
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78 tz = -int(tzs) * (int(tzh) * 3600 + int(tzm))
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79 date = tm + " " + str(tz)
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80 author = author or "unknown"
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81
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82 c = commit(parents=parents, date=date, author=author, desc=message)
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83 return c
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84
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85 def gettags(self):
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86 tags = {}
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87 fh = os.popen('git-ls-remote --tags "%s" 2>/dev/null' % self.path)
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88 prefix = 'refs/tags/'
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89 for line in fh:
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90 line = line.strip()
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91 if not line.endswith("^{}"):
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92 continue
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93 node, tag = line.split(None, 1)
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94 if not tag.startswith(prefix):
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95 continue
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96 tag = tag[len(prefix):-3]
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97 tags[tag] = node
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98
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99 return tags