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annotate hgext/convert/git.py @ 4767:2d0a823cbba5

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convert: gitcmd wrapper for os.popen
author Brendan Cully <brendan@kublai.com>
date Sun, 01 Jul 2007 21:09:08 -0700
parents 07efcce17d28
children f52bfe566583
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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 gitcmd(self, s):
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9 return os.popen('GIT_DIR=%s %s' % (self.path, s))
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10
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11 def __init__(self, ui, path, rev=None):
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12 if os.path.isdir(path + "/.git"):
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13 path += "/.git"
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14 if not os.path.exists(path + "/objects"):
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15 raise NoRepo("couldn't open GIT repo %s" % path)
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16
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17 self.path = path
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18 self.ui = ui
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19 self.rev = rev
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20 self.encoding = 'utf-8'
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21
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22 def getheads(self):
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23 rev = self.rev or 'HEAD'
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24 fh = self.gitcmd("git-rev-parse --verify %s" % rev)
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25 return [fh.read()[:-1]]
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26
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27 def catfile(self, rev, type):
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28 if rev == "0" * 40: raise IOError()
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29 fh = self.gitcmd("git-cat-file %s %s 2>/dev/null" % (type, rev))
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30 return fh.read()
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31
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32 def getfile(self, name, rev):
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33 return self.catfile(rev, "blob")
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34
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35 def getmode(self, name, rev):
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36 return self.modecache[(name, rev)]
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37
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38 def getchanges(self, version):
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39 self.modecache = {}
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40 fh = self.gitcmd("git-diff-tree --root -m -r %s" % version)
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41 changes = []
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42 for l in fh:
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43 if "\t" not in l: continue
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44 m, f = l[:-1].split("\t")
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45 m = m.split()
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46 h = m[3]
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47 p = (m[1] == "100755")
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48 s = (m[1] == "120000")
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49 self.modecache[(f, h)] = (p and "x") or (s and "l") or ""
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50 changes.append((f, h))
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51 return changes
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53 def getcommit(self, version):
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54 c = self.catfile(version, "commit") # read the commit hash
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55 end = c.find("\n\n")
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56 message = c[end+2:]
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57 message = self.recode(message)
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58 l = c[:end].splitlines()
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59 manifest = l[0].split()[1]
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60 parents = []
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61 for e in l[1:]:
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62 n, v = e.split(" ", 1)
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63 if n == "author":
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64 p = v.split()
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65 tm, tz = p[-2:]
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66 author = " ".join(p[:-2])
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67 if author[0] == "<": author = author[1:-1]
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68 author = self.recode(author)
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69 if n == "committer":
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70 p = v.split()
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71 tm, tz = p[-2:]
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72 committer = " ".join(p[:-2])
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73 if committer[0] == "<": committer = committer[1:-1]
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74 committer = self.recode(committer)
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75 message += "\ncommitter: %s\n" % committer
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76 if n == "parent": parents.append(v)
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78 tzs, tzh, tzm = tz[-5:-4] + "1", tz[-4:-2], tz[-2:]
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79 tz = -int(tzs) * (int(tzh) * 3600 + int(tzm))
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80 date = tm + " " + str(tz)
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81 author = author or "unknown"
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83 c = commit(parents=parents, date=date, author=author, desc=message)
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84 return c
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85
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86 def gettags(self):
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87 tags = {}
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88 fh = self.gitcmd('git-ls-remote --tags "%s" 2>/dev/null' % self.path)
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89 prefix = 'refs/tags/'
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90 for line in fh:
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91 line = line.strip()
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92 if not line.endswith("^{}"):
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93 continue
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94 node, tag = line.split(None, 1)
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95 if not tag.startswith(prefix):
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96 continue
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97 tag = tag[len(prefix):-3]
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98 tags[tag] = node
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99
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100 return tags