Mercurial > hg
annotate mercurial/graphmod.py @ 16388:e03d8a40521f
repair: allow giving strip backup a different name
So the user can differentiate amend backups from the rest.
author | Idan Kamara <idankk86@gmail.com> |
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date | Fri, 06 Apr 2012 16:18:33 +0300 |
parents | 6e4de55a41a4 |
children | 0849d725e2f9 |
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6691 | 1 # Revision graph generator for Mercurial |
2 # | |
3 # Copyright 2008 Dirkjan Ochtman <dirkjan@ochtman.nl> | |
4 # Copyright 2007 Joel Rosdahl <joel@rosdahl.net> | |
5 # | |
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6 # This software may be used and distributed according to the terms of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
6691 | 8 |
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9 """supports walking the history as DAGs suitable for graphical output |
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10 |
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11 The most basic format we use is that of:: |
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12 |
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13 (id, type, data, [parentids]) |
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14 |
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15 The node and parent ids are arbitrary integers which identify a node in the |
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16 context of the graph returned. Type is a constant specifying the node type. |
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17 Data depends on type. |
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18 """ |
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19 |
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20 from mercurial.node import nullrev |
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21 import util |
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22 |
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23 CHANGESET = 'C' |
6691 | 24 |
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25 def dagwalker(repo, revs): |
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26 """cset DAG generator yielding (id, CHANGESET, ctx, [parentids]) tuples |
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27 |
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28 This generator function walks through revisions (which should be ordered |
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29 from bigger to lower). It returns a tuple for each node. The node and parent |
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30 ids are arbitrary integers which identify a node in the context of the graph |
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31 returned. |
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32 """ |
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33 if not revs: |
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34 return |
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35 |
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36 cl = repo.changelog |
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37 lowestrev = min(revs) |
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38 gpcache = {} |
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39 |
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40 knownrevs = set(revs) |
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41 for rev in revs: |
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42 ctx = repo[rev] |
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43 parents = sorted(set([p.rev() for p in ctx.parents() |
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44 if p.rev() in knownrevs])) |
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45 mpars = [p.rev() for p in ctx.parents() if |
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46 p.rev() != nullrev and p.rev() not in parents] |
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47 |
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48 for mpar in mpars: |
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49 gp = gpcache.get(mpar) |
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50 if gp is None: |
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51 gp = gpcache[mpar] = grandparent(cl, lowestrev, revs, mpar) |
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52 if not gp: |
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53 parents.append(mpar) |
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54 else: |
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55 parents.extend(g for g in gp if g not in parents) |
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56 |
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57 yield (ctx.rev(), CHANGESET, ctx, parents) |
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58 |
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59 def nodes(repo, nodes): |
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60 """cset DAG generator yielding (id, CHANGESET, ctx, [parentids]) tuples |
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61 |
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62 This generator function walks the given nodes. It only returns parents |
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63 that are in nodes, too. |
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64 """ |
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65 include = set(nodes) |
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66 for node in nodes: |
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67 ctx = repo[node] |
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68 parents = set([p.rev() for p in ctx.parents() if p.node() in include]) |
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69 yield (ctx.rev(), CHANGESET, ctx, sorted(parents)) |
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70 |
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71 def colored(dag, repo): |
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72 """annotates a DAG with colored edge information |
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73 |
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74 For each DAG node this function emits tuples:: |
6691 | 75 |
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76 (id, type, data, (col, color), [(col, nextcol, color)]) |
6691 | 77 |
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78 with the following new elements: |
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79 |
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80 - Tuple (col, color) with column and color index for the current node |
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81 - A list of tuples indicating the edges between the current node and its |
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82 parents. |
6691 | 83 """ |
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84 seen = [] |
6691 | 85 colors = {} |
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86 newcolor = 1 |
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87 config = {} |
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88 |
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89 for key, val in repo.ui.configitems('graph'): |
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90 if '.' in key: |
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91 branch, setting = key.rsplit('.', 1) |
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92 # Validation |
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93 if setting == "width" and val.isdigit(): |
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94 config.setdefault(branch, {})[setting] = int(val) |
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95 elif setting == "color" and val.isalnum(): |
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96 config.setdefault(branch, {})[setting] = val |
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97 |
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98 if config: |
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99 getconf = util.lrucachefunc( |
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100 lambda rev: config.get(repo[rev].branch(), {})) |
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101 else: |
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102 getconf = lambda rev: {} |
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103 |
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104 for (cur, type, data, parents) in dag: |
6691 | 105 |
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106 # Compute seen and next |
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107 if cur not in seen: |
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108 seen.append(cur) # new head |
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109 colors[cur] = newcolor |
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110 newcolor += 1 |
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112 col = seen.index(cur) |
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113 color = colors.pop(cur) |
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114 next = seen[:] |
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116 # Add parents to next |
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118 next[col:col + 1] = addparents |
6691 | 119 |
120 # Set colors for the parents | |
121 for i, p in enumerate(addparents): | |
122 if not i: | |
123 colors[p] = color | |
124 else: | |
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125 colors[p] = newcolor |
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126 newcolor += 1 |
6691 | 127 |
128 # Add edges to the graph | |
129 edges = [] | |
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130 for ecol, eid in enumerate(seen): |
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131 if eid in next: |
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132 bconf = getconf(eid) |
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133 edges.append(( |
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134 ecol, next.index(eid), colors[eid], |
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135 bconf.get('width', -1), |
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136 bconf.get('color', ''))) |
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137 elif eid == cur: |
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139 bconf = getconf(p) |
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140 edges.append(( |
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141 ecol, next.index(p), color, |
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142 bconf.get('width', -1), |
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143 bconf.get('color', ''))) |
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145 # Yield and move on | |
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146 yield (cur, type, data, (col, color), edges) |
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147 seen = next |
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148 |
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149 def grandparent(cl, lowestrev, roots, head): |
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150 """Return all ancestors of head in roots which revision is |
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151 greater or equal to lowestrev. |
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152 """ |
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153 pending = set([head]) |
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154 seen = set() |
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155 kept = set() |
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156 llowestrev = max(nullrev, lowestrev) |
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157 while pending: |
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158 r = pending.pop() |
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159 if r >= llowestrev and r not in seen: |
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160 if r in roots: |
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161 kept.add(r) |
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162 else: |
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163 pending.update([p for p in cl.parentrevs(r)]) |
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164 seen.add(r) |
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165 return sorted(kept) |