Mercurial > hg
annotate mercurial/graphmod.py @ 23021:41770cee3c6a
test-resolve: add test resolving one of two files
The tests for resolve are missing a lot of cases. Let's start by
adding another file to the test repo, so we can test resolving one of
two files.
author | Martin von Zweigbergk <martinvonz@gmail.com> |
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date | Wed, 08 Oct 2014 21:07:30 -0700 |
parents | bb1bd9ee323d |
children | f7ce0837eefd |
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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 = revs.min() |
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38 gpcache = {} |
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39 |
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40 for rev in revs: |
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41 ctx = repo[rev] |
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42 parents = sorted(set([p.rev() for p in ctx.parents() |
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43 if p.rev() in revs])) |
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44 mpars = [p.rev() for p in ctx.parents() if |
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45 p.rev() != nullrev and p.rev() not in parents] |
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46 |
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47 for mpar in mpars: |
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48 gp = gpcache.get(mpar) |
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49 if gp is None: |
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50 gp = gpcache[mpar] = grandparent(cl, lowestrev, revs, mpar) |
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51 if not gp: |
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52 parents.append(mpar) |
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53 else: |
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54 parents.extend(g for g in gp if g not in parents) |
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55 |
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56 yield (ctx.rev(), CHANGESET, ctx, parents) |
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57 |
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58 def nodes(repo, nodes): |
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59 """cset DAG generator yielding (id, CHANGESET, ctx, [parentids]) tuples |
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60 |
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61 This generator function walks the given nodes. It only returns parents |
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62 that are in nodes, too. |
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63 """ |
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64 include = set(nodes) |
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65 for node in nodes: |
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66 ctx = repo[node] |
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67 parents = set([p.rev() for p in ctx.parents() if p.node() in include]) |
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68 yield (ctx.rev(), CHANGESET, ctx, sorted(parents)) |
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69 |
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70 def colored(dag, repo): |
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71 """annotates a DAG with colored edge information |
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72 |
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73 For each DAG node this function emits tuples:: |
6691 | 74 |
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75 (id, type, data, (col, color), [(col, nextcol, color)]) |
6691 | 76 |
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77 with the following new elements: |
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78 |
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79 - Tuple (col, color) with column and color index for the current node |
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80 - A list of tuples indicating the edges between the current node and its |
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81 parents. |
6691 | 82 """ |
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83 seen = [] |
6691 | 84 colors = {} |
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85 newcolor = 1 |
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86 config = {} |
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87 |
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88 for key, val in repo.ui.configitems('graph'): |
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89 if '.' in key: |
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90 branch, setting = key.rsplit('.', 1) |
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91 # Validation |
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92 if setting == "width" and val.isdigit(): |
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93 config.setdefault(branch, {})[setting] = int(val) |
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94 elif setting == "color" and val.isalnum(): |
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95 config.setdefault(branch, {})[setting] = val |
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96 |
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97 if config: |
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98 getconf = util.lrucachefunc( |
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99 lambda rev: config.get(repo[rev].branch(), {})) |
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100 else: |
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101 getconf = lambda rev: {} |
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102 |
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103 for (cur, type, data, parents) in dag: |
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105 # Compute seen and next |
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106 if cur not in seen: |
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107 seen.append(cur) # new head |
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108 colors[cur] = newcolor |
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109 newcolor += 1 |
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111 col = seen.index(cur) |
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112 color = colors.pop(cur) |
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113 next = seen[:] |
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115 # Add parents to next |
6691 | 116 addparents = [p for p in parents if p not in next] |
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117 next[col:col + 1] = addparents |
6691 | 118 |
119 # Set colors for the parents | |
120 for i, p in enumerate(addparents): | |
121 if not i: | |
122 colors[p] = color | |
123 else: | |
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124 colors[p] = newcolor |
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125 newcolor += 1 |
6691 | 126 |
127 # Add edges to the graph | |
128 edges = [] | |
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129 for ecol, eid in enumerate(seen): |
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130 if eid in next: |
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131 bconf = getconf(eid) |
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132 edges.append(( |
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133 ecol, next.index(eid), colors[eid], |
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134 bconf.get('width', -1), |
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135 bconf.get('color', ''))) |
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136 elif eid == cur: |
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138 bconf = getconf(p) |
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139 edges.append(( |
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140 ecol, next.index(p), color, |
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141 bconf.get('width', -1), |
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142 bconf.get('color', ''))) |
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144 # Yield and move on | |
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145 yield (cur, type, data, (col, color), edges) |
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146 seen = next |
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147 |
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148 def grandparent(cl, lowestrev, roots, head): |
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149 """Return all ancestors of head in roots which revision is |
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150 greater or equal to lowestrev. |
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151 """ |
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152 pending = set([head]) |
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153 seen = set() |
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154 kept = set() |
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155 llowestrev = max(nullrev, lowestrev) |
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156 while pending: |
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157 r = pending.pop() |
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158 if r >= llowestrev and r not in seen: |
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159 if r in roots: |
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160 kept.add(r) |
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161 else: |
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162 pending.update([p for p in cl.parentrevs(r)]) |
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163 seen.add(r) |
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164 return sorted(kept) |
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165 |
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166 def asciiedges(type, char, lines, seen, rev, parents): |
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167 """adds edge info to changelog DAG walk suitable for ascii()""" |
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168 if rev not in seen: |
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169 seen.append(rev) |
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170 nodeidx = seen.index(rev) |
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171 |
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172 knownparents = [] |
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173 newparents = [] |
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174 for parent in parents: |
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175 if parent in seen: |
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176 knownparents.append(parent) |
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177 else: |
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178 newparents.append(parent) |
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179 |
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180 ncols = len(seen) |
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181 nextseen = seen[:] |
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182 nextseen[nodeidx:nodeidx + 1] = newparents |
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183 edges = [(nodeidx, nextseen.index(p)) for p in knownparents if p != nullrev] |
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184 |
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185 while len(newparents) > 2: |
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186 # ascii() only knows how to add or remove a single column between two |
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187 # calls. Nodes with more than two parents break this constraint so we |
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188 # introduce intermediate expansion lines to grow the active node list |
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189 # slowly. |
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190 edges.append((nodeidx, nodeidx)) |
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191 edges.append((nodeidx, nodeidx + 1)) |
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192 nmorecols = 1 |
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193 yield (type, char, lines, (nodeidx, edges, ncols, nmorecols)) |
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194 char = '\\' |
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195 lines = [] |
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196 nodeidx += 1 |
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197 ncols += 1 |
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198 edges = [] |
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199 del newparents[0] |
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200 |
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201 if len(newparents) > 0: |
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202 edges.append((nodeidx, nodeidx)) |
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203 if len(newparents) > 1: |
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204 edges.append((nodeidx, nodeidx + 1)) |
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205 nmorecols = len(nextseen) - ncols |
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206 seen[:] = nextseen |
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207 yield (type, char, lines, (nodeidx, edges, ncols, nmorecols)) |
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208 |
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209 def _fixlongrightedges(edges): |
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210 for (i, (start, end)) in enumerate(edges): |
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211 if end > start: |
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212 edges[i] = (start, end + 1) |
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213 |
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214 def _getnodelineedgestail( |
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215 node_index, p_node_index, n_columns, n_columns_diff, p_diff, fix_tail): |
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216 if fix_tail and n_columns_diff == p_diff and n_columns_diff != 0: |
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217 # Still going in the same non-vertical direction. |
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218 if n_columns_diff == -1: |
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219 start = max(node_index + 1, p_node_index) |
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220 tail = ["|", " "] * (start - node_index - 1) |
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221 tail.extend(["/", " "] * (n_columns - start)) |
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222 return tail |
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223 else: |
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224 return ["\\", " "] * (n_columns - node_index - 1) |
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225 else: |
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226 return ["|", " "] * (n_columns - node_index - 1) |
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227 |
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228 def _drawedges(edges, nodeline, interline): |
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229 for (start, end) in edges: |
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230 if start == end + 1: |
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231 interline[2 * end + 1] = "/" |
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232 elif start == end - 1: |
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233 interline[2 * start + 1] = "\\" |
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234 elif start == end: |
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235 interline[2 * start] = "|" |
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236 else: |
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237 if 2 * end >= len(nodeline): |
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238 continue |
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239 nodeline[2 * end] = "+" |
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240 if start > end: |
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241 (start, end) = (end, start) |
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242 for i in range(2 * start + 1, 2 * end): |
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243 if nodeline[i] != "+": |
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244 nodeline[i] = "-" |
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245 |
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246 def _getpaddingline(ni, n_columns, edges): |
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247 line = [] |
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248 line.extend(["|", " "] * ni) |
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249 if (ni, ni - 1) in edges or (ni, ni) in edges: |
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250 # (ni, ni - 1) (ni, ni) |
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251 # | | | | | | | | |
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252 # +---o | | o---+ |
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253 # | | c | | c | | |
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254 # | |/ / | |/ / |
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255 # | | | | | | |
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256 c = "|" |
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257 else: |
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258 c = " " |
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259 line.extend([c, " "]) |
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260 line.extend(["|", " "] * (n_columns - ni - 1)) |
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261 return line |
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262 |
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263 def asciistate(): |
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264 """returns the initial value for the "state" argument to ascii()""" |
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265 return [0, 0] |
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266 |
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267 def ascii(ui, state, type, char, text, coldata): |
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268 """prints an ASCII graph of the DAG |
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269 |
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270 takes the following arguments (one call per node in the graph): |
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271 |
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272 - ui to write to |
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273 - Somewhere to keep the needed state in (init to asciistate()) |
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274 - Column of the current node in the set of ongoing edges. |
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275 - Type indicator of node data, usually 'C' for changesets. |
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276 - Payload: (char, lines): |
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277 - Character to use as node's symbol. |
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278 - List of lines to display as the node's text. |
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279 - Edges; a list of (col, next_col) indicating the edges between |
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280 the current node and its parents. |
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281 - Number of columns (ongoing edges) in the current revision. |
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282 - The difference between the number of columns (ongoing edges) |
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283 in the next revision and the number of columns (ongoing edges) |
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284 in the current revision. That is: -1 means one column removed; |
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285 0 means no columns added or removed; 1 means one column added. |
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286 """ |
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287 |
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288 idx, edges, ncols, coldiff = coldata |
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289 assert -2 < coldiff < 2 |
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290 if coldiff == -1: |
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291 # Transform |
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292 # |
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293 # | | | | | | |
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294 # o | | into o---+ |
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295 # |X / |/ / |
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296 # | | | | |
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297 _fixlongrightedges(edges) |
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298 |
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299 # add_padding_line says whether to rewrite |
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300 # |
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301 # | | | | | | | | |
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302 # | o---+ into | o---+ |
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303 # | / / | | | # <--- padding line |
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304 # o | | | / / |
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305 # o | | |
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306 add_padding_line = (len(text) > 2 and coldiff == -1 and |
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307 [x for (x, y) in edges if x + 1 < y]) |
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308 |
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309 # fix_nodeline_tail says whether to rewrite |
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310 # |
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311 # | | o | | | | o | | |
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312 # | | |/ / | | |/ / |
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313 # | o | | into | o / / # <--- fixed nodeline tail |
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314 # | |/ / | |/ / |
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315 # o | | o | | |
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316 fix_nodeline_tail = len(text) <= 2 and not add_padding_line |
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317 |
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318 # nodeline is the line containing the node character (typically o) |
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319 nodeline = ["|", " "] * idx |
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320 nodeline.extend([char, " "]) |
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321 |
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322 nodeline.extend( |
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323 _getnodelineedgestail(idx, state[1], ncols, coldiff, |
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324 state[0], fix_nodeline_tail)) |
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325 |
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326 # shift_interline is the line containing the non-vertical |
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327 # edges between this entry and the next |
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328 shift_interline = ["|", " "] * idx |
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329 if coldiff == -1: |
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330 n_spaces = 1 |
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331 edge_ch = "/" |
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332 elif coldiff == 0: |
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333 n_spaces = 2 |
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334 edge_ch = "|" |
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335 else: |
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336 n_spaces = 3 |
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337 edge_ch = "\\" |
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338 shift_interline.extend(n_spaces * [" "]) |
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339 shift_interline.extend([edge_ch, " "] * (ncols - idx - 1)) |
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340 |
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341 # draw edges from the current node to its parents |
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342 _drawedges(edges, nodeline, shift_interline) |
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343 |
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344 # lines is the list of all graph lines to print |
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345 lines = [nodeline] |
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346 if add_padding_line: |
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347 lines.append(_getpaddingline(idx, ncols, edges)) |
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348 lines.append(shift_interline) |
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349 |
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350 # make sure that there are as many graph lines as there are |
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351 # log strings |
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352 while len(text) < len(lines): |
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353 text.append("") |
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354 if len(lines) < len(text): |
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355 extra_interline = ["|", " "] * (ncols + coldiff) |
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356 while len(lines) < len(text): |
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357 lines.append(extra_interline) |
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358 |
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359 # print lines |
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360 indentation_level = max(ncols, ncols + coldiff) |
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361 for (line, logstr) in zip(lines, text): |
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362 ln = "%-*s %s" % (2 * indentation_level, "".join(line), logstr) |
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363 ui.write(ln.rstrip() + '\n') |
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364 |
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365 # ... and start over |
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366 state[0] = coldiff |
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367 state[1] = idx |