Mercurial > hg
annotate hgext/graphlog.py @ 13971:bfeaa88b875d
move canonpath from util to scmutil
author | Adrian Buehlmann <adrian@cadifra.com> |
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date | Wed, 20 Apr 2011 21:41:41 +0200 |
parents | 12f60626d817 |
children | 9966c95b8c4f |
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4344 | 1 # ASCII graph log extension for Mercurial |
2 # | |
3 # Copyright 2007 Joel Rosdahl <joel@rosdahl.net> | |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 '''command to view revision graphs from a shell |
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9 |
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10 This extension adds a --graph option to the incoming, outgoing and log |
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11 commands. When this options is given, an ASCII representation of the |
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12 revision graph is also shown. |
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13 ''' |
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15 import os |
4344 | 16 from mercurial.cmdutil import revrange, show_changeset |
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17 from mercurial.commands import templateopts |
4344 | 18 from mercurial.i18n import _ |
6212 | 19 from mercurial.node import nullrev |
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20 from mercurial import cmdutil, commands, extensions |
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21 from mercurial import hg, scmutil, util, graphmod |
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22 |
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23 ASCIIDATA = 'ASC' |
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24 |
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25 def asciiedges(seen, rev, parents): |
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26 """adds edge info to changelog DAG walk suitable for ascii()""" |
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27 if rev not in seen: |
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28 seen.append(rev) |
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29 nodeidx = seen.index(rev) |
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30 |
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31 knownparents = [] |
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32 newparents = [] |
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33 for parent in parents: |
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34 if parent in seen: |
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35 knownparents.append(parent) |
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36 else: |
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37 newparents.append(parent) |
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38 |
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39 ncols = len(seen) |
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40 seen[nodeidx:nodeidx + 1] = newparents |
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41 edges = [(nodeidx, seen.index(p)) for p in knownparents] |
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42 |
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43 if len(newparents) > 0: |
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44 edges.append((nodeidx, nodeidx)) |
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45 if len(newparents) > 1: |
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46 edges.append((nodeidx, nodeidx + 1)) |
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47 |
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48 nmorecols = len(seen) - ncols |
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49 return nodeidx, edges, ncols, nmorecols |
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50 |
4344 | 51 def fix_long_right_edges(edges): |
52 for (i, (start, end)) in enumerate(edges): | |
53 if end > start: | |
54 edges[i] = (start, end + 1) | |
55 | |
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56 def get_nodeline_edges_tail( |
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57 node_index, p_node_index, n_columns, n_columns_diff, p_diff, fix_tail): |
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58 if fix_tail and n_columns_diff == p_diff and n_columns_diff != 0: |
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59 # Still going in the same non-vertical direction. |
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60 if n_columns_diff == -1: |
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61 start = max(node_index + 1, p_node_index) |
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62 tail = ["|", " "] * (start - node_index - 1) |
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63 tail.extend(["/", " "] * (n_columns - start)) |
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64 return tail |
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65 else: |
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66 return ["\\", " "] * (n_columns - node_index - 1) |
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67 else: |
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68 return ["|", " "] * (n_columns - node_index - 1) |
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69 |
4344 | 70 def draw_edges(edges, nodeline, interline): |
71 for (start, end) in edges: | |
72 if start == end + 1: | |
73 interline[2 * end + 1] = "/" | |
74 elif start == end - 1: | |
75 interline[2 * start + 1] = "\\" | |
76 elif start == end: | |
77 interline[2 * start] = "|" | |
78 else: | |
79 nodeline[2 * end] = "+" | |
80 if start > end: | |
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81 (start, end) = (end, start) |
4344 | 82 for i in range(2 * start + 1, 2 * end): |
83 if nodeline[i] != "+": | |
84 nodeline[i] = "-" | |
85 | |
86 def get_padding_line(ni, n_columns, edges): | |
87 line = [] | |
88 line.extend(["|", " "] * ni) | |
89 if (ni, ni - 1) in edges or (ni, ni) in edges: | |
90 # (ni, ni - 1) (ni, ni) | |
91 # | | | | | | | | | |
92 # +---o | | o---+ | |
93 # | | c | | c | | | |
94 # | |/ / | |/ / | |
95 # | | | | | | | |
96 c = "|" | |
97 else: | |
98 c = " " | |
99 line.extend([c, " "]) | |
100 line.extend(["|", " "] * (n_columns - ni - 1)) | |
101 return line | |
102 | |
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103 def asciistate(): |
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104 """returns the initial value for the "state" argument to ascii()""" |
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105 return [0, 0] |
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106 |
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107 def ascii(ui, state, type, char, text, coldata): |
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108 """prints an ASCII graph of the DAG |
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110 takes the following arguments (one call per node in the graph): |
4344 | 111 |
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112 - ui to write to |
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113 - Somewhere to keep the needed state in (init to asciistate()) |
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114 - Column of the current node in the set of ongoing edges. |
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115 - Type indicator of node data == ASCIIDATA. |
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116 - Payload: (char, lines): |
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117 - Character to use as node's symbol. |
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118 - List of lines to display as the node's text. |
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119 - Edges; a list of (col, next_col) indicating the edges between |
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120 the current node and its parents. |
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121 - Number of columns (ongoing edges) in the current revision. |
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122 - The difference between the number of columns (ongoing edges) |
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123 in the next revision and the number of columns (ongoing edges) |
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124 in the current revision. That is: -1 means one column removed; |
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125 0 means no columns added or removed; 1 means one column added. |
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126 """ |
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128 idx, edges, ncols, coldiff = coldata |
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129 assert -2 < coldiff < 2 |
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130 if coldiff == -1: |
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131 # Transform |
4344 | 132 # |
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133 # | | | | | | |
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134 # o | | into o---+ |
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135 # |X / |/ / |
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136 # | | | | |
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137 fix_long_right_edges(edges) |
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138 |
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139 # add_padding_line says whether to rewrite |
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140 # |
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141 # | | | | | | | | |
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142 # | o---+ into | o---+ |
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143 # | / / | | | # <--- padding line |
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144 # o | | | / / |
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145 # o | | |
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146 add_padding_line = (len(text) > 2 and coldiff == -1 and |
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147 [x for (x, y) in edges if x + 1 < y]) |
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149 # fix_nodeline_tail says whether to rewrite |
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150 # |
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151 # | | o | | | | o | | |
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152 # | | |/ / | | |/ / |
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153 # | o | | into | o / / # <--- fixed nodeline tail |
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154 # | |/ / | |/ / |
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155 # o | | o | | |
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156 fix_nodeline_tail = len(text) <= 2 and not add_padding_line |
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158 # nodeline is the line containing the node character (typically o) |
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159 nodeline = ["|", " "] * idx |
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160 nodeline.extend([char, " "]) |
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162 nodeline.extend( |
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163 get_nodeline_edges_tail(idx, state[1], ncols, coldiff, |
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164 state[0], fix_nodeline_tail)) |
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166 # shift_interline is the line containing the non-vertical |
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167 # edges between this entry and the next |
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168 shift_interline = ["|", " "] * idx |
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169 if coldiff == -1: |
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170 n_spaces = 1 |
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171 edge_ch = "/" |
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172 elif coldiff == 0: |
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173 n_spaces = 2 |
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174 edge_ch = "|" |
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175 else: |
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176 n_spaces = 3 |
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177 edge_ch = "\\" |
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178 shift_interline.extend(n_spaces * [" "]) |
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179 shift_interline.extend([edge_ch, " "] * (ncols - idx - 1)) |
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181 # draw edges from the current node to its parents |
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182 draw_edges(edges, nodeline, shift_interline) |
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184 # lines is the list of all graph lines to print |
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185 lines = [nodeline] |
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186 if add_padding_line: |
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187 lines.append(get_padding_line(idx, ncols, edges)) |
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188 lines.append(shift_interline) |
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190 # make sure that there are as many graph lines as there are |
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191 # log strings |
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192 while len(text) < len(lines): |
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193 text.append("") |
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194 if len(lines) < len(text): |
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195 extra_interline = ["|", " "] * (ncols + coldiff) |
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196 while len(lines) < len(text): |
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197 lines.append(extra_interline) |
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199 # print lines |
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200 indentation_level = max(ncols, ncols + coldiff) |
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201 for (line, logstr) in zip(lines, text): |
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202 ln = "%-*s %s" % (2 * indentation_level, "".join(line), logstr) |
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203 ui.write(ln.rstrip() + '\n') |
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205 # ... and start over |
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206 state[0] = coldiff |
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207 state[1] = idx |
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209 def get_revs(repo, rev_opt): |
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210 if rev_opt: |
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211 revs = revrange(repo, rev_opt) |
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212 if len(revs) == 0: |
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213 return (nullrev, nullrev) |
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214 return (max(revs), min(revs)) |
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215 else: |
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216 return (len(repo) - 1, 0) |
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217 |
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218 def check_unsupported_flags(opts): |
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219 for op in ["follow", "follow_first", "date", "copies", "keyword", "remove", |
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220 "only_merges", "user", "branch", "only_branch", "prune", |
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221 "newest_first", "no_merges", "include", "exclude"]: |
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222 if op in opts and opts[op]: |
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223 raise util.Abort(_("--graph option is incompatible with --%s") |
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224 % op.replace("_", "-")) |
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225 |
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226 def generate(ui, dag, displayer, showparents, edgefn): |
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227 seen, state = [], asciistate() |
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228 for rev, type, ctx, parents in dag: |
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229 char = ctx.node() in showparents and '@' or 'o' |
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230 displayer.show(ctx) |
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231 lines = displayer.hunk.pop(rev).split('\n')[:-1] |
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232 displayer.flush(rev) |
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233 ascii(ui, state, type, char, lines, edgefn(seen, rev, parents)) |
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234 displayer.close() |
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235 |
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236 def graphlog(ui, repo, path=None, **opts): |
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237 """show revision history alongside an ASCII revision graph |
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238 |
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239 Print a revision history alongside a revision graph drawn with |
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240 ASCII characters. |
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241 |
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242 Nodes printed as an @ character are parents of the working |
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243 directory. |
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244 """ |
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245 |
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246 check_unsupported_flags(opts) |
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247 limit = cmdutil.loglimit(opts) |
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248 start, stop = get_revs(repo, opts["rev"]) |
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249 if start == nullrev: |
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250 return |
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251 |
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252 if path: |
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253 path = scmutil.canonpath(repo.root, os.getcwd(), path) |
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254 if path: # could be reset in canonpath |
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255 revdag = graphmod.filerevs(repo, path, start, stop, limit) |
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256 else: |
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257 if limit is not None: |
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258 stop = max(stop, start - limit + 1) |
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259 revdag = graphmod.revisions(repo, start, stop) |
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260 |
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261 displayer = show_changeset(ui, repo, opts, buffered=True) |
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262 showparents = [ctx.node() for ctx in repo[None].parents()] |
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263 generate(ui, revdag, displayer, showparents, asciiedges) |
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264 |
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265 def graphrevs(repo, nodes, opts): |
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266 limit = cmdutil.loglimit(opts) |
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267 nodes.reverse() |
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268 if limit is not None: |
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269 nodes = nodes[:limit] |
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270 return graphmod.nodes(repo, nodes) |
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271 |
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272 def goutgoing(ui, repo, dest=None, **opts): |
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273 """show the outgoing changesets alongside an ASCII revision graph |
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274 |
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275 Print the outgoing changesets alongside a revision graph drawn with |
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276 ASCII characters. |
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277 |
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278 Nodes printed as an @ character are parents of the working |
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279 directory. |
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280 """ |
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281 |
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282 check_unsupported_flags(opts) |
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283 o = hg._outgoing(ui, repo, dest, opts) |
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284 if o is None: |
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285 return |
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286 |
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287 revdag = graphrevs(repo, o, opts) |
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288 displayer = show_changeset(ui, repo, opts, buffered=True) |
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289 showparents = [ctx.node() for ctx in repo[None].parents()] |
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290 generate(ui, revdag, displayer, showparents, asciiedges) |
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291 |
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292 def gincoming(ui, repo, source="default", **opts): |
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293 """show the incoming changesets alongside an ASCII revision graph |
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294 |
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295 Print the incoming changesets alongside a revision graph drawn with |
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296 ASCII characters. |
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297 |
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298 Nodes printed as an @ character are parents of the working |
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299 directory. |
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300 """ |
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301 def subreporecurse(): |
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302 return 1 |
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303 |
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304 check_unsupported_flags(opts) |
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305 def display(other, chlist, displayer): |
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306 revdag = graphrevs(other, chlist, opts) |
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307 showparents = [ctx.node() for ctx in repo[None].parents()] |
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308 generate(ui, revdag, displayer, showparents, asciiedges) |
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309 |
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310 hg._incoming(display, subreporecurse, ui, repo, source, opts, buffered=True) |
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311 |
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312 def uisetup(ui): |
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313 '''Initialize the extension.''' |
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314 _wrapcmd(ui, 'log', commands.table, graphlog) |
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315 _wrapcmd(ui, 'incoming', commands.table, gincoming) |
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316 _wrapcmd(ui, 'outgoing', commands.table, goutgoing) |
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317 |
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318 def _wrapcmd(ui, cmd, table, wrapfn): |
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319 '''wrap the command''' |
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320 def graph(orig, *args, **kwargs): |
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321 if kwargs['graph']: |
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322 try: |
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323 return wrapfn(*args, **kwargs) |
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324 except TypeError, e: |
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325 if len(args) > wrapfn.func_code.co_argcount: |
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326 raise util.Abort(_('--graph option allows at most one file')) |
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327 raise |
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328 return orig(*args, **kwargs) |
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329 entry = extensions.wrapcommand(table, cmd, graph) |
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330 entry[1].append(('G', 'graph', None, _("show the revision DAG"))) |
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331 |
4344 | 332 cmdtable = { |
333 "glog": | |
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334 (graphlog, |
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335 [('l', 'limit', '', |
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336 _('limit number of changes displayed'), _('NUM')), |
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337 ('p', 'patch', False, _('show patch')), |
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338 ('r', 'rev', [], |
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339 _('show the specified revision or range'), _('REV')), |
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340 ] + templateopts, |
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341 _('hg glog [OPTION]... [FILE]')), |
4344 | 342 } |