Mercurial > hg > gitweb

annotate mercurial/context.py @ 2643:f23973ea3107

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fix filectxt to really work - use a context instead of changelog.read - changectx._id is not necessary
author Benoit Boissinot <benoit.boissinot@ens-lyon.org>
date Mon, 17 Jul 2006 01:59:06 +0200
parents a49534aac47d
children 345bac2bc4ec
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1 # context.py - changeset and file context objects for mercurial
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2 #
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3 # Copyright 2005 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7
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8 class changectx(object):
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9 """A changecontext object makes access to data related to a particular
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10 changeset convenient."""
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11 def __init__(self, repo, changeid):
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12 """changeid is a revision number, node, or tag"""
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13 self._repo = repo
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14
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15 self._node = self._repo.lookup(changeid)
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16 self._rev = self._repo.changelog.rev(self._node)
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17
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18 def changeset(self):
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19 try:
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20 return self._changeset
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21 except AttributeError:
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22 self._changeset = self._repo.changelog.read(self.node())
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23 return self._changeset
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24
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25 def manifest(self):
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26 try:
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27 return self._manifest
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28 except AttributeError:
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29 self._manifest = self._repo.manifest.read(self.changeset()[0])
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30 return self._manifest
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31
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32 def rev(self): return self._rev
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33 def node(self): return self._node
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34 def user(self): return self.changeset()[1]
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35 def date(self): return self.changeset()[2]
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36 def changedfiles(self): return self.changeset()[3]
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37 def description(self): return self.changeset()[4]
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38
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39 def parents(self):
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40 """return contexts for each parent changeset"""
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41 p = self._repo.changelog.parents(self._node)
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42 return [ changectx(self._repo, x) for x in p ]
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43
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44 def children(self):
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45 """return contexts for each child changeset"""
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46 c = self._repo.changelog.children(self._node)
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47 return [ changectx(self._repo, x) for x in c ]
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48
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49 def filenode(self, path):
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50 node, flag = self._repo.manifest.find(self.changeset()[0], path)
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51 return node
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52
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53 def filectx(self, path, fileid=None):
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54 """get a file context from this changeset"""
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55 if fileid is None:
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56 fileid = self.filenode(path)
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57 return filectx(self._repo, path, fileid=fileid)
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58
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59 def filectxs(self):
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60 """generate a file context for each file in this changeset's
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61 manifest"""
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62 mf = self.manifest()
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63 m = mf.keys()
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64 m.sort()
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65 for f in m:
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66 yield self.filectx(f, fileid=mf[f])
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67
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68 class filectx(object):
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69 """A filecontext object makes access to data related to a particular
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70 filerevision convenient."""
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71 def __init__(self, repo, path, changeid=None, fileid=None):
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72 """changeid can be a changeset revision, node, or tag.
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73 fileid can be a file revision or node."""
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74 self._repo = repo
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75 self._path = path
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76
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77 assert changeid or fileid
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78
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79 if not fileid:
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80 # if given a changeset id, go ahead and look up the file
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81 self._changeid = changeid
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82 self._changectx = self.changectx()
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83 self._filelog = self._repo.file(self._path)
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84 self._filenode = self._changectx.filenode(self._path)
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85 else:
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86 # else be lazy
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87 self._filelog = self._repo.file(self._path)
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88 self._filenode = self._filelog.lookup(fileid)
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89 self._changeid = self._filelog.linkrev(self._filenode)
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90 self._filerev = self._filelog.rev(self._filenode)
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91
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92 def changectx(self):
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93 try:
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94 return self._changectx
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95 except AttributeError:
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96 self._changectx = changectx(self._repo, self._changeid)
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97 return self._changectx
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98
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99 def filerev(self): return self._filerev
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100 def filenode(self): return self._filenode
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101 def filelog(self): return self._filelog
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102
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103 def rev(self): return self.changectx().rev()
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104 def node(self): return self.changectx().node()
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105 def user(self): return self.changectx().user()
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106 def date(self): return self.changectx().date()
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107 def files(self): return self.changectx().files()
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108 def description(self): return self.changectx().description()
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109 def manifest(self): return self.changectx().manifest()
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110
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111 def data(self): return self._filelog.read(self._filenode)
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112 def metadata(self): return self._filelog.readmeta(self._filenode)
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113 def renamed(self): return self._filelog.renamed(self._filenode)
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114
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115 def parents(self):
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116 # need to fix for renames
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117 p = self._filelog.parents(self._filenode)
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118 return [ filectx(self._repo, self._path, fileid=x) for x in p ]
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119
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120 def children(self):
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121 # hard for renames
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122 c = self._filelog.children(self._filenode)
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123 return [ filectx(self._repo, self._path, fileid=x) for x in c ]
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124
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125 def annotate(self):
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126 return self._filelog.annotate(self._filenode)