Mercurial > hg
annotate mercurial/bookmarks.py @ 13884:773a833ddbc6
bugzilla: convert a verbatim block to a field list
author | Martin Geisler <mg@aragost.com> |
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date | Tue, 05 Apr 2011 10:22:58 +0200 |
parents | d16c99f16f00 |
children | 97ed99d1f419 |
rev | line source |
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1 # Mercurial bookmark support code |
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2 # |
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3 # Copyright 2008 David Soria Parra <dsp@php.net> |
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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 or any later version. |
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7 |
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8 from mercurial.i18n import _ |
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9 from mercurial.node import nullid, nullrev, bin, hex, short |
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10 from mercurial import encoding, util |
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11 import os |
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12 |
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13 def valid(mark): |
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14 for c in (':', '\0', '\n', '\r'): |
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15 if c in mark: |
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16 return False |
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17 return True |
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18 |
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19 def read(repo): |
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20 '''Parse .hg/bookmarks file and return a dictionary |
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21 |
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22 Bookmarks are stored as {HASH}\\s{NAME}\\n (localtags format) values |
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23 in the .hg/bookmarks file. |
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24 Read the file and return a (name=>nodeid) dictionary |
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25 ''' |
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26 try: |
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27 bookmarks = {} |
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28 for line in repo.opener('bookmarks'): |
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29 sha, refspec = line.strip().split(' ', 1) |
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30 refspec = encoding.tolocal(refspec) |
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31 bookmarks[refspec] = repo.changelog.lookup(sha) |
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32 except: |
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33 pass |
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34 return bookmarks |
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35 |
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36 def readcurrent(repo): |
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37 '''Get the current bookmark |
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38 |
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39 If we use gittishsh branches we have a current bookmark that |
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40 we are on. This function returns the name of the bookmark. It |
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41 is stored in .hg/bookmarks.current |
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42 ''' |
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43 mark = None |
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44 if os.path.exists(repo.join('bookmarks.current')): |
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45 file = repo.opener('bookmarks.current') |
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46 # No readline() in posixfile_nt, reading everything is cheap |
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47 mark = encoding.tolocal((file.readlines() or [''])[0]) |
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48 if mark == '' or mark not in repo._bookmarks: |
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49 mark = None |
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50 file.close() |
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51 return mark |
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52 |
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53 def write(repo): |
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54 '''Write bookmarks |
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55 |
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56 Write the given bookmark => hash dictionary to the .hg/bookmarks file |
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57 in a format equal to those of localtags. |
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58 |
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59 We also store a backup of the previous state in undo.bookmarks that |
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60 can be copied back on rollback. |
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61 ''' |
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62 refs = repo._bookmarks |
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63 |
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64 try: |
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65 bms = repo.opener('bookmarks').read() |
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66 except IOError: |
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67 bms = '' |
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68 repo.opener('undo.bookmarks', 'w').write(bms) |
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69 |
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70 if repo._bookmarkcurrent not in refs: |
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71 setcurrent(repo, None) |
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72 for mark in refs.keys(): |
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73 if not valid(mark): |
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74 raise util.Abort(_("bookmark '%s' contains illegal " |
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75 "character" % mark)) |
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76 |
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77 wlock = repo.wlock() |
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78 try: |
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79 |
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80 file = repo.opener('bookmarks', 'w', atomictemp=True) |
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81 for refspec, node in refs.iteritems(): |
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82 file.write("%s %s\n" % (hex(node), encoding.fromlocal(refspec))) |
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83 file.rename() |
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84 |
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85 # touch 00changelog.i so hgweb reloads bookmarks (no lock needed) |
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86 try: |
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87 os.utime(repo.sjoin('00changelog.i'), None) |
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88 except OSError: |
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89 pass |
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90 |
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91 finally: |
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92 wlock.release() |
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93 |
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94 def setcurrent(repo, mark): |
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95 '''Set the name of the bookmark that we are currently on |
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96 |
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97 Set the name of the bookmark that we are on (hg update <bookmark>). |
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98 The name is recorded in .hg/bookmarks.current |
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99 ''' |
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100 current = repo._bookmarkcurrent |
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101 if current == mark: |
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102 return |
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103 |
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104 if mark not in repo._bookmarks: |
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105 mark = '' |
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106 if not valid(mark): |
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107 raise util.Abort(_("bookmark '%s' contains illegal " |
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108 "character" % mark)) |
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109 |
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110 wlock = repo.wlock() |
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111 try: |
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112 file = repo.opener('bookmarks.current', 'w', atomictemp=True) |
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113 file.write(mark) |
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114 file.rename() |
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115 finally: |
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116 wlock.release() |
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117 repo._bookmarkcurrent = mark |
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118 |
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119 def updatecurrentbookmark(repo, oldnode, curbranch): |
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120 try: |
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121 update(repo, oldnode, repo.branchtags()[curbranch]) |
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122 except KeyError: |
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123 if curbranch == "default": # no default branch! |
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124 update(repo, oldnode, repo.lookup("tip")) |
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125 else: |
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126 raise util.Abort(_("branch %s not found") % curbranch) |
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127 |
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128 def update(repo, parents, node): |
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129 marks = repo._bookmarks |
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130 update = False |
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131 mark = repo._bookmarkcurrent |
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132 if mark and marks[mark] in parents: |
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133 old = repo[marks[mark]] |
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134 new = repo[node] |
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135 if new in old.descendants(): |
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136 marks[mark] = new.node() |
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137 update = True |
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138 if update: |
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139 write(repo) |
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140 |
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141 def listbookmarks(repo): |
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142 # We may try to list bookmarks on a repo type that does not |
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143 # support it (e.g., statichttprepository). |
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144 if not hasattr(repo, '_bookmarks'): |
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145 return {} |
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146 |
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147 d = {} |
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148 for k, v in repo._bookmarks.iteritems(): |
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149 d[k] = hex(v) |
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150 return d |
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151 |
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152 def pushbookmark(repo, key, old, new): |
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153 w = repo.wlock() |
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154 try: |
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155 marks = repo._bookmarks |
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156 if hex(marks.get(key, '')) != old: |
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157 return False |
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158 if new == '': |
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159 del marks[key] |
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160 else: |
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161 if new not in repo: |
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162 return False |
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163 marks[key] = repo[new].node() |
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164 write(repo) |
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165 return True |
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166 finally: |
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167 w.release() |
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168 |
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169 def updatefromremote(ui, repo, remote): |
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170 ui.debug("checking for updated bookmarks\n") |
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171 rb = remote.listkeys('bookmarks') |
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172 changed = False |
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173 for k in rb.keys(): |
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174 if k in repo._bookmarks: |
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175 nr, nl = rb[k], repo._bookmarks[k] |
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176 if nr in repo: |
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177 cr = repo[nr] |
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178 cl = repo[nl] |
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179 if cl.rev() >= cr.rev(): |
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180 continue |
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181 if cr in cl.descendants(): |
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182 repo._bookmarks[k] = cr.node() |
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183 changed = True |
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184 ui.status(_("updating bookmark %s\n") % k) |
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185 else: |
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186 ui.warn(_("not updating divergent" |
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187 " bookmark %s\n") % k) |
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188 if changed: |
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189 write(repo) |
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190 |
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191 def diff(ui, repo, remote): |
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192 ui.status(_("searching for changed bookmarks\n")) |
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193 |
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194 lmarks = repo.listkeys('bookmarks') |
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195 rmarks = remote.listkeys('bookmarks') |
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196 |
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197 diff = sorted(set(rmarks) - set(lmarks)) |
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198 for k in diff: |
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199 ui.write(" %-25s %s\n" % (k, rmarks[k][:12])) |
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200 |
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201 if len(diff) <= 0: |
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202 ui.status(_("no changed bookmarks found\n")) |
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203 return 1 |
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204 return 0 |