Mercurial > hg
annotate hgext/graphlog.py @ 16836:1ba3e17186c8
hg-ssh: read-only flag
Allows you to restrict a ssh key to have read-only access to a set of
repos by passing the --read-only flag to hg-ssh.
This is useful in an environment where the number of unix users you
can or are willing to create is limited. In such an environment,
multiple users or applications will share a single unix account. Some
of those applications will likely need read-only access to the
repository. This change makes it possible to grant them such access
without requiring that they use a separate unix account.
author | David Schleimer <dschleimer@fb.com> |
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date | Tue, 22 May 2012 15:17:37 -0700 |
parents | 058e14da7044 |
children | 2e13c1bd34dc |
rev | line source |
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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 ''' |
4344 | 14 |
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15 from mercurial.cmdutil import show_changeset |
4344 | 16 from mercurial.i18n import _ |
6212 | 17 from mercurial.node import nullrev |
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18 from mercurial import cmdutil, commands, extensions, scmutil |
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19 from mercurial import hg, util, graphmod, templatekw, revset |
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20 |
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21 cmdtable = {} |
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22 command = cmdutil.command(cmdtable) |
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23 testedwith = 'internal' |
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24 |
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25 ASCIIDATA = 'ASC' |
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26 |
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27 def asciiedges(type, char, lines, seen, rev, parents): |
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28 """adds edge info to changelog DAG walk suitable for ascii()""" |
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29 if rev not in seen: |
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30 seen.append(rev) |
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31 nodeidx = seen.index(rev) |
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32 |
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33 knownparents = [] |
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34 newparents = [] |
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35 for parent in parents: |
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36 if parent in seen: |
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37 knownparents.append(parent) |
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38 else: |
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39 newparents.append(parent) |
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40 |
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41 ncols = len(seen) |
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42 nextseen = seen[:] |
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43 nextseen[nodeidx:nodeidx + 1] = newparents |
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44 edges = [(nodeidx, nextseen.index(p)) for p in knownparents] |
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45 |
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46 while len(newparents) > 2: |
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47 # ascii() only knows how to add or remove a single column between two |
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48 # calls. Nodes with more than two parents break this constraint so we |
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49 # introduce intermediate expansion lines to grow the active node list |
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50 # slowly. |
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51 edges.append((nodeidx, nodeidx)) |
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52 edges.append((nodeidx, nodeidx + 1)) |
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53 nmorecols = 1 |
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54 yield (type, char, lines, (nodeidx, edges, ncols, nmorecols)) |
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55 char = '\\' |
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56 lines = [] |
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57 nodeidx += 1 |
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58 ncols += 1 |
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59 edges = [] |
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60 del newparents[0] |
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61 |
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62 if len(newparents) > 0: |
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63 edges.append((nodeidx, nodeidx)) |
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64 if len(newparents) > 1: |
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65 edges.append((nodeidx, nodeidx + 1)) |
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66 nmorecols = len(nextseen) - ncols |
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67 seen[:] = nextseen |
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68 yield (type, char, lines, (nodeidx, edges, ncols, nmorecols)) |
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69 |
4344 | 70 def fix_long_right_edges(edges): |
71 for (i, (start, end)) in enumerate(edges): | |
72 if end > start: | |
73 edges[i] = (start, end + 1) | |
74 | |
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75 def get_nodeline_edges_tail( |
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76 node_index, p_node_index, n_columns, n_columns_diff, p_diff, fix_tail): |
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77 if fix_tail and n_columns_diff == p_diff and n_columns_diff != 0: |
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78 # Still going in the same non-vertical direction. |
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79 if n_columns_diff == -1: |
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80 start = max(node_index + 1, p_node_index) |
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81 tail = ["|", " "] * (start - node_index - 1) |
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82 tail.extend(["/", " "] * (n_columns - start)) |
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83 return tail |
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84 else: |
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85 return ["\\", " "] * (n_columns - node_index - 1) |
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86 else: |
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87 return ["|", " "] * (n_columns - node_index - 1) |
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88 |
4344 | 89 def draw_edges(edges, nodeline, interline): |
90 for (start, end) in edges: | |
91 if start == end + 1: | |
92 interline[2 * end + 1] = "/" | |
93 elif start == end - 1: | |
94 interline[2 * start + 1] = "\\" | |
95 elif start == end: | |
96 interline[2 * start] = "|" | |
97 else: | |
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98 if 2 * end >= len(nodeline): |
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99 continue |
4344 | 100 nodeline[2 * end] = "+" |
101 if start > end: | |
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102 (start, end) = (end, start) |
4344 | 103 for i in range(2 * start + 1, 2 * end): |
104 if nodeline[i] != "+": | |
105 nodeline[i] = "-" | |
106 | |
107 def get_padding_line(ni, n_columns, edges): | |
108 line = [] | |
109 line.extend(["|", " "] * ni) | |
110 if (ni, ni - 1) in edges or (ni, ni) in edges: | |
111 # (ni, ni - 1) (ni, ni) | |
112 # | | | | | | | | | |
113 # +---o | | o---+ | |
114 # | | c | | c | | | |
115 # | |/ / | |/ / | |
116 # | | | | | | | |
117 c = "|" | |
118 else: | |
119 c = " " | |
120 line.extend([c, " "]) | |
121 line.extend(["|", " "] * (n_columns - ni - 1)) | |
122 return line | |
123 | |
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124 def asciistate(): |
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125 """returns the initial value for the "state" argument to ascii()""" |
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126 return [0, 0] |
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127 |
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128 def ascii(ui, state, type, char, text, coldata): |
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129 """prints an ASCII graph of the DAG |
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131 takes the following arguments (one call per node in the graph): |
4344 | 132 |
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133 - ui to write to |
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134 - Somewhere to keep the needed state in (init to asciistate()) |
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135 - Column of the current node in the set of ongoing edges. |
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136 - Type indicator of node data == ASCIIDATA. |
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137 - Payload: (char, lines): |
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138 - Character to use as node's symbol. |
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139 - List of lines to display as the node's text. |
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140 - Edges; a list of (col, next_col) indicating the edges between |
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141 the current node and its parents. |
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142 - Number of columns (ongoing edges) in the current revision. |
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143 - The difference between the number of columns (ongoing edges) |
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144 in the next revision and the number of columns (ongoing edges) |
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145 in the current revision. That is: -1 means one column removed; |
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146 0 means no columns added or removed; 1 means one column added. |
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147 """ |
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149 idx, edges, ncols, coldiff = coldata |
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150 assert -2 < coldiff < 2 |
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151 if coldiff == -1: |
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152 # Transform |
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154 # | | | | | | |
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155 # o | | into o---+ |
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156 # |X / |/ / |
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157 # | | | | |
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158 fix_long_right_edges(edges) |
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159 |
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160 # add_padding_line says whether to rewrite |
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161 # |
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162 # | | | | | | | | |
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163 # | o---+ into | o---+ |
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164 # | / / | | | # <--- padding line |
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165 # o | | | / / |
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166 # o | | |
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167 add_padding_line = (len(text) > 2 and coldiff == -1 and |
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168 [x for (x, y) in edges if x + 1 < y]) |
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170 # fix_nodeline_tail says whether to rewrite |
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171 # |
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172 # | | o | | | | o | | |
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173 # | | |/ / | | |/ / |
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174 # | o | | into | o / / # <--- fixed nodeline tail |
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175 # | |/ / | |/ / |
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176 # o | | o | | |
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177 fix_nodeline_tail = len(text) <= 2 and not add_padding_line |
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179 # nodeline is the line containing the node character (typically o) |
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180 nodeline = ["|", " "] * idx |
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181 nodeline.extend([char, " "]) |
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183 nodeline.extend( |
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184 get_nodeline_edges_tail(idx, state[1], ncols, coldiff, |
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185 state[0], fix_nodeline_tail)) |
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187 # shift_interline is the line containing the non-vertical |
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188 # edges between this entry and the next |
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189 shift_interline = ["|", " "] * idx |
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190 if coldiff == -1: |
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191 n_spaces = 1 |
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192 edge_ch = "/" |
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193 elif coldiff == 0: |
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194 n_spaces = 2 |
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195 edge_ch = "|" |
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196 else: |
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197 n_spaces = 3 |
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198 edge_ch = "\\" |
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199 shift_interline.extend(n_spaces * [" "]) |
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200 shift_interline.extend([edge_ch, " "] * (ncols - idx - 1)) |
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202 # draw edges from the current node to its parents |
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203 draw_edges(edges, nodeline, shift_interline) |
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205 # lines is the list of all graph lines to print |
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206 lines = [nodeline] |
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207 if add_padding_line: |
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208 lines.append(get_padding_line(idx, ncols, edges)) |
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209 lines.append(shift_interline) |
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211 # make sure that there are as many graph lines as there are |
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212 # log strings |
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213 while len(text) < len(lines): |
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214 text.append("") |
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215 if len(lines) < len(text): |
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216 extra_interline = ["|", " "] * (ncols + coldiff) |
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217 while len(lines) < len(text): |
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218 lines.append(extra_interline) |
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220 # print lines |
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221 indentation_level = max(ncols, ncols + coldiff) |
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222 for (line, logstr) in zip(lines, text): |
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223 ln = "%-*s %s" % (2 * indentation_level, "".join(line), logstr) |
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224 ui.write(ln.rstrip() + '\n') |
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226 # ... and start over |
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227 state[0] = coldiff |
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228 state[1] = idx |
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230 def get_revs(repo, rev_opt): |
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231 if rev_opt: |
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232 revs = scmutil.revrange(repo, rev_opt) |
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233 if len(revs) == 0: |
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234 return (nullrev, nullrev) |
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235 return (max(revs), min(revs)) |
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236 else: |
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237 return (len(repo) - 1, 0) |
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238 |
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239 def check_unsupported_flags(pats, opts): |
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240 for op in ["newest_first"]: |
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241 if op in opts and opts[op]: |
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242 raise util.Abort(_("-G/--graph option is incompatible with --%s") |
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243 % op.replace("_", "-")) |
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244 |
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245 def _makefilematcher(repo, pats, followfirst): |
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246 # When displaying a revision with --patch --follow FILE, we have |
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247 # to know which file of the revision must be diffed. With |
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248 # --follow, we want the names of the ancestors of FILE in the |
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249 # revision, stored in "fcache". "fcache" is populated by |
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250 # reproducing the graph traversal already done by --follow revset |
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251 # and relating linkrevs to file names (which is not "correct" but |
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252 # good enough). |
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253 fcache = {} |
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254 fcacheready = [False] |
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255 pctx = repo['.'] |
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256 wctx = repo[None] |
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257 |
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258 def populate(): |
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259 for fn in pats: |
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260 for i in ((pctx[fn],), pctx[fn].ancestors(followfirst=followfirst)): |
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261 for c in i: |
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262 fcache.setdefault(c.linkrev(), set()).add(c.path()) |
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263 |
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264 def filematcher(rev): |
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265 if not fcacheready[0]: |
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266 # Lazy initialization |
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267 fcacheready[0] = True |
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268 populate() |
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269 return scmutil.match(wctx, fcache.get(rev, []), default='path') |
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270 |
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271 return filematcher |
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272 |
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273 def _makelogrevset(repo, pats, opts, revs): |
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274 """Return (expr, filematcher) where expr is a revset string built |
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275 from log options and file patterns or None. If --stat or --patch |
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276 are not passed filematcher is None. Otherwise it is a callable |
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277 taking a revision number and returning a match objects filtering |
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278 the files to be detailed when displaying the revision. |
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279 """ |
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280 opt2revset = { |
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281 'no_merges': ('not merge()', None), |
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282 'only_merges': ('merge()', None), |
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283 '_ancestors': ('ancestors(%(val)s)', None), |
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284 '_fancestors': ('_firstancestors(%(val)s)', None), |
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285 '_descendants': ('descendants(%(val)s)', None), |
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286 '_fdescendants': ('_firstdescendants(%(val)s)', None), |
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287 '_matchfiles': ('_matchfiles(%(val)s)', None), |
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288 'date': ('date(%(val)r)', None), |
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289 'branch': ('branch(%(val)r)', ' or '), |
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290 '_patslog': ('filelog(%(val)r)', ' or '), |
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291 '_patsfollow': ('follow(%(val)r)', ' or '), |
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292 '_patsfollowfirst': ('_followfirst(%(val)r)', ' or '), |
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293 'keyword': ('keyword(%(val)r)', ' or '), |
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294 'prune': ('not (%(val)r or ancestors(%(val)r))', ' and '), |
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295 'user': ('user(%(val)r)', ' or '), |
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296 } |
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297 |
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298 opts = dict(opts) |
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299 # follow or not follow? |
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300 follow = opts.get('follow') or opts.get('follow_first') |
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301 followfirst = opts.get('follow_first') and 1 or 0 |
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302 # --follow with FILE behaviour depends on revs... |
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303 startrev = revs[0] |
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304 followdescendants = (len(revs) > 1 and revs[0] < revs[1]) and 1 or 0 |
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305 |
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306 # branch and only_branch are really aliases and must be handled at |
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307 # the same time |
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308 opts['branch'] = opts.get('branch', []) + opts.get('only_branch', []) |
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309 opts['branch'] = [repo.lookupbranch(b) for b in opts['branch']] |
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310 # pats/include/exclude are passed to match.match() directly in |
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311 # _matchfile() revset but walkchangerevs() builds its matcher with |
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312 # scmutil.match(). The difference is input pats are globbed on |
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313 # platforms without shell expansion (windows). |
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314 pctx = repo[None] |
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315 match, pats = scmutil.matchandpats(pctx, pats, opts) |
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316 slowpath = match.anypats() or (match.files() and opts.get('removed')) |
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317 if not slowpath: |
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318 for f in match.files(): |
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319 if follow and f not in pctx: |
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320 raise util.Abort(_('cannot follow file not in parent ' |
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321 'revision: "%s"') % f) |
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322 filelog = repo.file(f) |
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323 if not len(filelog): |
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324 # A zero count may be a directory or deleted file, so |
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325 # try to find matching entries on the slow path. |
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326 if follow: |
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327 raise util.Abort( |
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328 _('cannot follow nonexistent file: "%s"') % f) |
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329 slowpath = True |
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330 if slowpath: |
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331 # See cmdutil.walkchangerevs() slow path. |
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332 # |
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333 if follow: |
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334 raise util.Abort(_('can only follow copies/renames for explicit ' |
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335 'filenames')) |
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336 # pats/include/exclude cannot be represented as separate |
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337 # revset expressions as their filtering logic applies at file |
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338 # level. For instance "-I a -X a" matches a revision touching |
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339 # "a" and "b" while "file(a) and not file(b)" does |
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340 # not. Besides, filesets are evaluated against the working |
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341 # directory. |
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342 matchargs = ['r:', 'd:relpath'] |
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343 for p in pats: |
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344 matchargs.append('p:' + p) |
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345 for p in opts.get('include', []): |
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346 matchargs.append('i:' + p) |
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347 for p in opts.get('exclude', []): |
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348 matchargs.append('x:' + p) |
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349 matchargs = ','.join(('%r' % p) for p in matchargs) |
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350 opts['_matchfiles'] = matchargs |
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351 else: |
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352 if follow: |
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353 fpats = ('_patsfollow', '_patsfollowfirst') |
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354 fnopats = (('_ancestors', '_fancestors'), |
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355 ('_descendants', '_fdescendants')) |
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356 if pats: |
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357 # follow() revset inteprets its file argument as a |
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358 # manifest entry, so use match.files(), not pats. |
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359 opts[fpats[followfirst]] = list(match.files()) |
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360 else: |
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361 opts[fnopats[followdescendants][followfirst]] = str(startrev) |
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362 else: |
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363 opts['_patslog'] = list(pats) |
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364 |
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365 filematcher = None |
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366 if opts.get('patch') or opts.get('stat'): |
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367 if follow: |
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368 filematcher = _makefilematcher(repo, pats, followfirst) |
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369 else: |
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370 filematcher = lambda rev: match |
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371 |
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372 expr = [] |
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373 for op, val in opts.iteritems(): |
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374 if not val: |
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375 continue |
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376 if op not in opt2revset: |
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377 continue |
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378 revop, andor = opt2revset[op] |
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379 if '%(val)' not in revop: |
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380 expr.append(revop) |
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381 else: |
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382 if not isinstance(val, list): |
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383 e = revop % {'val': val} |
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384 else: |
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385 e = '(' + andor.join((revop % {'val': v}) for v in val) + ')' |
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386 expr.append(e) |
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387 |
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388 if expr: |
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389 expr = '(' + ' and '.join(expr) + ')' |
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390 else: |
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391 expr = None |
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392 return expr, filematcher |
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393 |
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394 def getlogrevs(repo, pats, opts): |
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395 """Return (revs, expr, filematcher) where revs is an iterable of |
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396 revision numbers, expr is a revset string built from log options |
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397 and file patterns or None, and used to filter 'revs'. If --stat or |
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398 --patch are not passed filematcher is None. Otherwise it is a |
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399 callable taking a revision number and returning a match objects |
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400 filtering the files to be detailed when displaying the revision. |
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401 """ |
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402 def increasingrevs(repo, revs, matcher): |
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403 # The sorted input rev sequence is chopped in sub-sequences |
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404 # which are sorted in ascending order and passed to the |
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405 # matcher. The filtered revs are sorted again as they were in |
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406 # the original sub-sequence. This achieve several things: |
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407 # |
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408 # - getlogrevs() now returns a generator which behaviour is |
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409 # adapted to log need. First results come fast, last ones |
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410 # are batched for performances. |
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411 # |
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412 # - revset matchers often operate faster on revision in |
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413 # changelog order, because most filters deal with the |
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414 # changelog. |
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415 # |
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416 # - revset matchers can reorder revisions. "A or B" typically |
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417 # returns returns the revision matching A then the revision |
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418 # matching B. We want to hide this internal implementation |
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419 # detail from the caller, and sorting the filtered revision |
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420 # again achieves this. |
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421 for i, window in cmdutil.increasingwindows(0, len(revs), windowsize=1): |
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422 orevs = revs[i:i + window] |
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423 nrevs = set(matcher(repo, sorted(orevs))) |
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424 for rev in orevs: |
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425 if rev in nrevs: |
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426 yield rev |
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427 |
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428 if not len(repo): |
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429 return iter([]), None, None |
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430 # Default --rev value depends on --follow but --follow behaviour |
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431 # depends on revisions resolved from --rev... |
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432 follow = opts.get('follow') or opts.get('follow_first') |
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433 if opts.get('rev'): |
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434 revs = scmutil.revrange(repo, opts['rev']) |
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435 else: |
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436 if follow and len(repo) > 0: |
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437 revs = scmutil.revrange(repo, ['.:0']) |
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438 else: |
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439 revs = range(len(repo) - 1, -1, -1) |
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440 if not revs: |
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441 return iter([]), None, None |
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442 expr, filematcher = _makelogrevset(repo, pats, opts, revs) |
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443 if expr: |
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444 matcher = revset.match(repo.ui, expr) |
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445 revs = increasingrevs(repo, revs, matcher) |
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446 if not opts.get('hidden'): |
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447 # --hidden is still experimental and not worth a dedicated revset |
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448 # yet. Fortunately, filtering revision number is fast. |
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449 revs = (r for r in revs if r not in repo.changelog.hiddenrevs) |
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450 else: |
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451 revs = iter(revs) |
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452 return revs, expr, filematcher |
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453 |
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454 def generate(ui, dag, displayer, showparents, edgefn, getrenamed=None, |
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455 filematcher=None): |
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456 seen, state = [], asciistate() |
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457 for rev, type, ctx, parents in dag: |
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458 char = ctx.node() in showparents and '@' or 'o' |
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459 copies = None |
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460 if getrenamed and ctx.rev(): |
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461 copies = [] |
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462 for fn in ctx.files(): |
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463 rename = getrenamed(fn, ctx.rev()) |
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464 if rename: |
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465 copies.append((fn, rename[0])) |
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466 revmatchfn = None |
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467 if filematcher is not None: |
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468 revmatchfn = filematcher(ctx.rev()) |
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469 displayer.show(ctx, copies=copies, matchfn=revmatchfn) |
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470 lines = displayer.hunk.pop(rev).split('\n')[:-1] |
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471 displayer.flush(rev) |
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472 edges = edgefn(type, char, lines, seen, rev, parents) |
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473 for type, char, lines, coldata in edges: |
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474 ascii(ui, state, type, char, lines, coldata) |
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475 displayer.close() |
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476 |
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477 @command('glog', |
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478 [('f', 'follow', None, |
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479 _('follow changeset history, or file history across copies and renames')), |
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480 ('', 'follow-first', None, |
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481 _('only follow the first parent of merge changesets (DEPRECATED)')), |
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482 ('d', 'date', '', _('show revisions matching date spec'), _('DATE')), |
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483 ('C', 'copies', None, _('show copied files')), |
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484 ('k', 'keyword', [], |
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485 _('do case-insensitive search for a given text'), _('TEXT')), |
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486 ('r', 'rev', [], _('show the specified revision or range'), _('REV')), |
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487 ('', 'removed', None, _('include revisions where files were removed')), |
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488 ('m', 'only-merges', None, _('show only merges (DEPRECATED)')), |
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489 ('u', 'user', [], _('revisions committed by user'), _('USER')), |
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490 ('', 'only-branch', [], |
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491 _('show only changesets within the given named branch (DEPRECATED)'), |
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492 _('BRANCH')), |
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493 ('b', 'branch', [], |
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494 _('show changesets within the given named branch'), _('BRANCH')), |
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495 ('P', 'prune', [], |
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496 _('do not display revision or any of its ancestors'), _('REV')), |
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497 ('', 'hidden', False, _('show hidden changesets (DEPRECATED)')), |
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498 ] + commands.logopts + commands.walkopts, |
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499 _('[OPTION]... [FILE]')) |
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500 def graphlog(ui, repo, *pats, **opts): |
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501 """show revision history alongside an ASCII revision graph |
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502 |
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503 Print a revision history alongside a revision graph drawn with |
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504 ASCII characters. |
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505 |
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506 Nodes printed as an @ character are parents of the working |
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507 directory. |
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508 """ |
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509 |
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510 revs, expr, filematcher = getlogrevs(repo, pats, opts) |
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511 revs = sorted(revs, reverse=1) |
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512 limit = cmdutil.loglimit(opts) |
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513 if limit is not None: |
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514 revs = revs[:limit] |
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515 revdag = graphmod.dagwalker(repo, revs) |
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516 |
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517 getrenamed = None |
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518 if opts.get('copies'): |
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519 endrev = None |
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520 if opts.get('rev'): |
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521 endrev = max(scmutil.revrange(repo, opts.get('rev'))) + 1 |
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522 getrenamed = templatekw.getrenamedfn(repo, endrev=endrev) |
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523 displayer = show_changeset(ui, repo, opts, buffered=True) |
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524 showparents = [ctx.node() for ctx in repo[None].parents()] |
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525 generate(ui, revdag, displayer, showparents, asciiedges, getrenamed, |
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526 filematcher) |
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527 |
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528 def graphrevs(repo, nodes, opts): |
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529 limit = cmdutil.loglimit(opts) |
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530 nodes.reverse() |
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531 if limit is not None: |
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532 nodes = nodes[:limit] |
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533 return graphmod.nodes(repo, nodes) |
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534 |
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535 def goutgoing(ui, repo, dest=None, **opts): |
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536 """show the outgoing changesets alongside an ASCII revision graph |
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537 |
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538 Print the outgoing changesets alongside a revision graph drawn with |
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539 ASCII characters. |
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540 |
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541 Nodes printed as an @ character are parents of the working |
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542 directory. |
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543 """ |
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544 |
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545 check_unsupported_flags([], opts) |
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546 o = hg._outgoing(ui, repo, dest, opts) |
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547 if o is None: |
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548 return |
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549 |
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550 revdag = graphrevs(repo, o, opts) |
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551 displayer = show_changeset(ui, repo, opts, buffered=True) |
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552 showparents = [ctx.node() for ctx in repo[None].parents()] |
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553 generate(ui, revdag, displayer, showparents, asciiedges) |
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554 |
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555 def gincoming(ui, repo, source="default", **opts): |
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556 """show the incoming changesets alongside an ASCII revision graph |
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557 |
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558 Print the incoming changesets alongside a revision graph drawn with |
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559 ASCII characters. |
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560 |
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561 Nodes printed as an @ character are parents of the working |
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562 directory. |
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563 """ |
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564 def subreporecurse(): |
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565 return 1 |
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566 |
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567 check_unsupported_flags([], opts) |
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568 def display(other, chlist, displayer): |
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569 revdag = graphrevs(other, chlist, opts) |
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570 showparents = [ctx.node() for ctx in repo[None].parents()] |
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571 generate(ui, revdag, displayer, showparents, asciiedges) |
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572 |
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573 hg._incoming(display, subreporecurse, ui, repo, source, opts, buffered=True) |
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574 |
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575 def uisetup(ui): |
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576 '''Initialize the extension.''' |
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577 _wrapcmd('log', commands.table, graphlog) |
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578 _wrapcmd('incoming', commands.table, gincoming) |
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579 _wrapcmd('outgoing', commands.table, goutgoing) |
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580 |
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581 def _wrapcmd(cmd, table, wrapfn): |
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582 '''wrap the command''' |
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583 def graph(orig, *args, **kwargs): |
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584 if kwargs['graph']: |
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585 return wrapfn(*args, **kwargs) |
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586 return orig(*args, **kwargs) |
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587 entry = extensions.wrapcommand(table, cmd, graph) |
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588 entry[1].append(('G', 'graph', None, _("show the revision DAG"))) |