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1 Load extension:
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2
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3 $ echo "[extensions]" >> $HGRCPATH
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4 $ echo "onsub = $TESTDIR/onsub.py" >> $HGRCPATH
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5
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6 Check help formatting:
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7
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8 $ hg help onsub
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9 hg onsub [-b] [-0] CMD
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10
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11 execute a command in each subrepository
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12
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13 The command is executed with the current working directory set to the root
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14 of each subrepository. By default, execution stops if the command returns
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15 a non-zero exit code. Use --ignore-errors to override this.
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16
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17 Use --verbose/-v to print the name of each subrepo before the command is
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18 executed, use --print0/-0 to terminate this line with a NUL character
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19 instead of a newline. This can for instance be useful in combination with
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20 "hg status --print0".
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21
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22 The command has access to the following environment variables:
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23
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24 "HG_REPO":
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25 Absolute path to the top-level repository in which the onsub command
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26 was executed.
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27
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28 "HG_SUBPATH":
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29 Relative path to the current subrepository from the top-level
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30 repository.
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31
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32 "HG_SUBURL":
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33 URL for the current subrepository as specified in the containing
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34 repository's ".hgsub" file.
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35
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36 "HG_SUBSTATE":
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37 State of the current subrepository as specified in the containing
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38 repository's ".hgsubstate" file.
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39
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40 options:
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41
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42 -b --breadth-first use breadth-first traversal
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43 -0 --print0 end subrepository names with NUL, for use with xargs
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44
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45 use "hg -v help onsub" to show global options
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46
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47 Create some nicely nested subrepositories:
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48
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49 $ hg init
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50 $ for d in a b; do hg init $d; echo "$d = $d" >> .hgsub; done
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51 $ hg add .hgsub
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52
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53 $ cd a
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54
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55 $ for d in x y; do hg init $d; echo "$d = $d" >> .hgsub; done
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56 $ hg add .hgsub
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57
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58 $ cd y
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59 $ for d in r s t; do hg init $d; echo "$d = $d" >> .hgsub; done
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60 $ hg add .hgsub
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61 $ cd ..
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62
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63 $ cd ..
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64
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65 $ cd b
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66 $ for d in u v; do hg init $d; echo "$d = $d" >> .hgsub; done
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67 $ hg add .hgsub
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68 $ cd ..
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69
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70 $ hg commit -m init
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71 committing subrepository a
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72 committing subrepository a/x
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73 committing subrepository a/y
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74 committing subrepository a/y/r
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75 committing subrepository a/y/s
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76 committing subrepository a/y/t
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77 committing subrepository b
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78 committing subrepository b/u
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79 committing subrepository b/v
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80
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81 The default depth-first traversal:
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82
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83 $ hg onsub 'echo $HG_SUBPATH'
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84 a
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85 a/x
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86 a/y
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87 a/y/r
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88 a/y/s
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89 a/y/t
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90 b
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91 b/u
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92 b/v
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93
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94 Breadth-first traversal:
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95
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96 $ hg onsub 'echo $HG_SUBPATH' --breadth-first
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97 a
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98 b
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99 a/x
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100 a/y
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101 b/u
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102 b/v
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103 a/y/r
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104 a/y/s
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105 a/y/t
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106
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107 Test aborting:
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108
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109 $ hg onsub -v 'test $HG_SUBPATH != "a/y/r"'
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110 executing 'test $HG_SUBPATH != "a/y/r"' in a
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111 executing 'test $HG_SUBPATH != "a/y/r"' in a/x
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112 executing 'test $HG_SUBPATH != "a/y/r"' in a/y
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113 executing 'test $HG_SUBPATH != "a/y/r"' in a/y/r
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114 abort: terminated onsub in a/y/r: test exited with status 1
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115
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116 Test --print0:
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117
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118 $ mv a 'with spaces'
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119 $ echo 'with spaces = with spaces' > .hgsub
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120 $ echo 'b = b' >> .hgsub
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121 $ hg commit -m rename
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122 committing subrepository with spaces
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123 $ hg onsub -0 | xargs -n 1 -0
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124 b
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125 b/u
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126 b/v
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127 with spaces
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128 with spaces/x
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129 with spaces/y
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130 with spaces/y/r
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131 with spaces/y/s
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132 with spaces/y/t
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