Mercurial > hg
annotate mercurial/graphmod.py @ 13324:e5617047c926
subrepo: make update -C clean the working directory for git subrepos
This makes 'hg update --clean' behave the same way for all three kinds
of subrepositories [hg, svn, git]. Before git subrepos did not take
the clean parameter into account, but just updated to the given
revision and merged uncommitted changes into that.
author | Erik Zielke <ez@aragost.com> |
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date | Mon, 31 Jan 2011 13:40:05 +0100 |
parents | 101366ad816c |
children | 9966c95b8c4f |
rev | line source |
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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 |
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22 CHANGESET = 'C' |
6691 | 23 |
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24 def revisions(repo, start, stop): |
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25 """cset DAG generator yielding (id, CHANGESET, ctx, [parentids]) tuples |
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26 |
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27 This generator function walks through the revision history from revision |
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28 start to revision stop (which must be less than or equal to start). It |
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29 returns a tuple for each node. The node and parent ids are arbitrary |
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30 integers which identify a node in the context of the graph returned. |
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31 """ |
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32 cur = start |
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33 while cur >= stop: |
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34 ctx = repo[cur] |
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35 parents = set([p.rev() for p in ctx.parents() if p.rev() != nullrev]) |
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36 yield (cur, CHANGESET, ctx, sorted(parents)) |
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37 cur -= 1 |
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38 |
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39 def filerevs(repo, path, start, stop, limit=None): |
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40 """file cset DAG generator yielding (id, CHANGESET, ctx, [parentids]) tuples |
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41 |
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42 This generator function walks through the revision history of a single |
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43 file from revision start down to revision stop. |
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44 """ |
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45 filerev = len(repo.file(path)) - 1 |
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46 rev = stop + 1 |
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47 count = 0 |
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48 while filerev >= 0 and rev > stop: |
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49 fctx = repo.filectx(path, fileid=filerev) |
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50 parents = set([f.linkrev() for f in fctx.parents() if f.path() == path]) |
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51 rev = fctx.rev() |
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52 if rev <= start: |
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53 yield (rev, CHANGESET, fctx.changectx(), sorted(parents)) |
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54 count += 1 |
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55 if count == limit: |
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56 break |
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57 filerev -= 1 |
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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): |
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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:: |
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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 for (cur, type, data, parents) in dag: |
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89 # Compute seen and next |
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90 if cur not in seen: |
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91 seen.append(cur) # new head |
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92 colors[cur] = newcolor |
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93 newcolor += 1 |
6691 | 94 |
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95 col = seen.index(cur) |
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96 color = colors.pop(cur) |
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97 next = seen[:] |
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99 # Add parents to next |
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101 next[col:col + 1] = addparents |
6691 | 102 |
103 # Set colors for the parents | |
104 for i, p in enumerate(addparents): | |
105 if not i: | |
106 colors[p] = color | |
107 else: | |
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108 colors[p] = newcolor |
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109 newcolor += 1 |
6691 | 110 |
111 # Add edges to the graph | |
112 edges = [] | |
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113 for ecol, eid in enumerate(seen): |
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114 if eid in next: |
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115 edges.append((ecol, next.index(eid), colors[eid])) |
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116 elif eid == cur: |
6691 | 117 for p in parents: |
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118 edges.append((ecol, next.index(p), color)) |
6691 | 119 |
120 # Yield and move on | |
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121 yield (cur, type, data, (col, color), edges) |
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122 seen = next |