Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/subrepo.py @ 8814:ab668c92a036

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subrepo: add update/merge logic
author Matt Mackall <mpm@selenic.com>
date Mon, 15 Jun 2009 02:45:38 -0500
parents db3c1ab0e632
children e87b0fc4750b
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1 # subrepo.py - sub-repository handling for Mercurial
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2 #
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3 # Copyright 2006, 2007 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 of the
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6 # GNU General Public License version 2, incorporated herein by reference.
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7
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8 import errno, os
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9 from i18n import _
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10 import config, util, node, error
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11 localrepo = hg = None
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12
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13 nullstate = ('', '')
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14
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15 def state(ctx):
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16 p = config.config()
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17 def read(f, sections=None, remap=None):
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18 if f in ctx:
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19 try:
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20 p.parse(f, ctx[f].data(), sections, remap)
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21 except IOError, err:
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22 if err.errno != errno.ENOENT:
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23 raise
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24 read('.hgsub')
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25
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26 rev = {}
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27 if '.hgsubstate' in ctx:
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28 try:
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29 for l in ctx['.hgsubstate'].data().splitlines():
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30 revision, path = l.split()
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31 rev[path] = revision
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32 except IOError, err:
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33 if err.errno != errno.ENOENT:
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34 raise
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35
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36 state = {}
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37 for path, src in p[''].items():
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38 state[path] = (src, rev.get(path, ''))
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39
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40 return state
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41
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42 def writestate(repo, state):
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43 repo.wwrite('.hgsubstate',
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44 ''.join(['%s %s\n' % (state[s][1], s)
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45 for s in sorted(state)]), '')
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46
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47 def submerge(repo, wctx, mctx, actx):
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48 if mctx == actx: # backwards?
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49 actx = wctx.p1()
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50 s1 = wctx.substate
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51 s2 = mctx.substate
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52 sa = actx.substate
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53 sm = {}
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54
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55 for s, l in s1.items():
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56 a = sa.get(s, nullstate)
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57 if s in s2:
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58 r = s2[s]
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59 if l == r or r == a: # no change or local is newer
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60 sm[s] = l
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61 continue
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62 elif l == a: # other side changed
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63 wctx.sub(s).get(r)
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64 sm[s] = r
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65 elif l[0] != r[0]: # sources differ
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66 if repo.ui.prompt(
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67 _(' subrepository sources for %s differ\n'
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68 'use (l)ocal source (%s) or (r)emote source (%s)?'
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69 % (s, l[0], r[0]),
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70 (_('&Local'), _('&Remote')), _('l'))) == _('r'):
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71 wctx.sub(s).get(r)
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72 sm[s] = r
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73 elif l[1] == a[1]: # local side is unchanged
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74 wctx.sub(s).get(r)
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75 sm[s] = r
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76 else:
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77 wctx.sub(s).merge(r)
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78 sm[s] = l
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79 elif l == a: # remote removed, local unchanged
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80 wctx.sub(s).remove()
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81 else:
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82 if repo.ui.prompt(
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83 _(' local changed subrepository %s which remote removed\n'
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84 'use (c)hanged version or (d)elete?' % s,
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85 (_('&Changed'), _('&Delete')), _('c'))) == _('d'):
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86 wctx.sub(s).remove()
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87
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88 for s, r in s2.items():
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89 if s in s1:
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90 continue
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91 elif s not in sa:
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92 wctx.sub(s).get(r)
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93 sm[s] = r
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94 elif r != sa[s]:
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95 if repo.ui.prompt(
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96 _(' remote changed subrepository %s which local removed\n'
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97 'use (c)hanged version or (d)elete?' % s,
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98 (_('&Changed'), _('&Delete')), _('c'))) == _('c'):
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99 wctx.sub(s).get(r)
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100 sm[s] = r
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101
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102 # record merged .hgsubstate
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103 writestate(repo, sm)
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104
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105 def _abssource(repo):
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106 if hasattr(repo, '_subparent'):
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107 source = repo._subsource
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108 if source.startswith('/') or '://' in source:
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109 return source
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110 return os.path.join(_abssource(repo._subparent), repo._subsource)
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111 return repo.ui.config('paths', 'default', repo.root)
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112
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113 def subrepo(ctx, path):
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114 # subrepo inherently violates our import layering rules
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115 # because it wants to make repo objects from deep inside the stack
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116 # so we manually delay the circular imports to not break
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117 # scripts that don't use our demand-loading
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118 global localrepo, hg
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119 import localrepo as l, hg as h
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120 localrepo = l
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121 hg = h
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122
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123 state = ctx.substate.get(path, nullstate)
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124 if state[0].startswith('['): # future expansion
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125 raise error.Abort('unknown subrepo source %s' % state[0])
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126 return hgsubrepo(ctx, path, state)
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127
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128 class hgsubrepo(object):
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129 def __init__(self, ctx, path, state):
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130 self._parent = ctx
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131 self._path = path
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132 self._state = state
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133 r = ctx._repo
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134 root = r.wjoin(path)
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135 if os.path.exists(os.path.join(root, '.hg')):
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136 self._repo = localrepo.localrepository(r.ui, root)
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137 else:
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138 util.makedirs(root)
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139 self._repo = localrepo.localrepository(r.ui, root, create=True)
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140 self._repo._subparent = r
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141 self._repo._subsource = state[0]
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142
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143 def dirty(self):
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144 r = self._state[1]
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145 if r == '':
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146 return True
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147 w = self._repo[None]
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148 if w.p1() != self._repo[r]: # version checked out changed
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149 return True
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150 return w.dirty() # working directory changed
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151
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152 def commit(self, text, user, date):
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153 n = self._repo.commit(text, user, date)
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154 if not n:
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155 return self._repo['.'].hex() # different version checked out
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156 return node.hex(n)
8814
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157
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158 def remove(self):
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159 # we can't fully delete the repository as it may contain
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160 # local-only history
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161 self._repo.ui.note(_('removing subrepo %s\n') % self._path)
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162 hg.clean(self._repo, node.nullid, False)
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163
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164 def get(self, state):
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165 source, revision = state
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166 try:
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167 self._repo.lookup(revision)
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168 except error.RepoError:
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169 self._repo._subsource = source
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170 self._repo.ui.status(_('pulling subrepo %s\n') % self._path)
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171 srcurl = _abssource(self._repo)
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172 other = hg.repository(self._repo.ui, srcurl)
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173 self._repo.pull(other)
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174
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175 hg.clean(self._repo, revision, False)
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176
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177 def merge(self, state):
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178 hg.merge(self._repo, state[1], remind=False)