Mercurial > hg
annotate tests/test-update-atomic.t @ 46924:ca0049946e9a
split: avoid strip if split is a no-op (identical to original)
Differential Revision: https://phab.mercurial-scm.org/D10389
author | Kyle Lippincott <spectral@google.com> |
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date | Mon, 12 Apr 2021 19:25:34 -0700 |
parents | 0826d684a1b5 |
children | 1d075b857c90 |
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1 #require execbit unix-permissions no-chg |
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2 |
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3 Checking that experimental.atomic-file works. |
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4 |
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5 $ cat > $TESTTMP/show_mode.py <<EOF |
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6 > from __future__ import print_function |
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7 > import os |
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8 > import stat |
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9 > import sys |
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10 > ST_MODE = stat.ST_MODE |
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11 > |
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12 > for file_path in sys.argv[1:]: |
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13 > file_stat = os.stat(file_path) |
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14 > octal_mode = oct(file_stat[ST_MODE] & 0o777).replace('o', '') |
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15 > print("%s:%s" % (file_path, octal_mode)) |
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16 > |
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17 > EOF |
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18 |
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19 $ hg init repo |
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20 $ cd repo |
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21 |
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22 $ cat > .hg/showwrites.py <<EOF |
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23 > from __future__ import print_function |
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24 > from mercurial import pycompat |
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25 > from mercurial.utils import stringutil |
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26 > def uisetup(ui): |
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27 > from mercurial import vfs |
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28 > class newvfs(vfs.vfs): |
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29 > def __call__(self, *args, **kwargs): |
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30 > print(pycompat.sysstr(stringutil.pprint( |
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31 > ('vfs open', args, sorted(list(kwargs.items())))))) |
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32 > return super(newvfs, self).__call__(*args, **kwargs) |
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33 > vfs.vfs = newvfs |
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34 > EOF |
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35 |
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36 $ for v in a1 a2 b1 b2 c ro; do echo $v > $v; done |
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37 $ chmod +x b* |
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38 $ hg commit -Aqm _ |
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39 |
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40 # We check that |
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41 # - the changes are actually atomic |
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42 # - that permissions are correct (all 4 cases of (executable before) * (executable after)) |
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43 # - that renames work, though they should be atomic anyway |
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44 # - that it works when source files are read-only (but directories are read-write still) |
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45 |
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46 $ for v in a1 a2 b1 b2 ro; do echo changed-$v > $v; done |
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47 $ chmod -x *1; chmod +x *2 |
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48 $ hg rename c d |
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49 $ hg commit -qm _ |
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50 |
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51 Check behavior without update.atomic-file |
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52 |
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53 $ hg update -r 0 -q |
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54 $ hg update -r 1 --config extensions.showwrites=.hg/showwrites.py 2>&1 | grep "a1'.*wb" |
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55 ('vfs open', ('a1', 'wb'), [('atomictemp', False), ('backgroundclose', True)]) |
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56 |
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57 $ $PYTHON $TESTTMP/show_mode.py * |
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58 a1:0644 |
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59 a2:0755 |
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60 b1:0644 |
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61 b2:0755 |
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62 d:0644 |
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63 ro:0644 |
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64 |
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65 Add a second revision for the ro file so we can test update when the file is |
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66 present or not |
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67 |
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68 $ echo "ro" > ro |
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69 |
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70 $ hg commit -qm _ |
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71 |
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72 Check behavior without update.atomic-file first |
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73 |
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74 $ hg update -C -r 0 -q |
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75 |
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76 $ hg update -r 1 |
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77 6 files updated, 0 files merged, 1 files removed, 0 files unresolved |
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78 |
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79 $ $PYTHON $TESTTMP/show_mode.py * |
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80 a1:0644 |
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81 a2:0755 |
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82 b1:0644 |
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83 b2:0755 |
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84 d:0644 |
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85 ro:0644 |
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86 |
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87 Manually reset the mode of the read-only file |
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88 |
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89 $ chmod a-w ro |
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90 |
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91 $ $PYTHON $TESTTMP/show_mode.py ro |
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92 ro:0444 |
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93 |
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94 Now the file is present, try to update and check the permissions of the file |
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95 |
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96 $ hg up -r 2 |
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97 1 files updated, 0 files merged, 0 files removed, 0 files unresolved |
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98 |
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99 $ $PYTHON $TESTTMP/show_mode.py ro |
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100 ro:0644 |
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101 |
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102 # The file which was read-only is now writable in the default behavior |
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103 |
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104 Check behavior with update.atomic-files |
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105 |
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106 |
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107 $ cat >> .hg/hgrc <<EOF |
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108 > [experimental] |
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109 > update.atomic-file = true |
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110 > EOF |
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111 |
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112 $ hg update -C -r 0 -q |
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113 $ hg update -r 1 --config extensions.showwrites=.hg/showwrites.py 2>&1 | grep "a1'.*wb" |
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114 ('vfs open', ('a1', 'wb'), [('atomictemp', True), ('backgroundclose', True)]) |
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115 $ hg st -A --rev 1 |
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116 C a1 |
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117 C a2 |
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118 C b1 |
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119 C b2 |
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120 C d |
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121 C ro |
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122 |
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123 Check the file permission after update |
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124 $ $PYTHON $TESTTMP/show_mode.py * |
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125 a1:0644 |
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126 a2:0755 |
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127 b1:0644 |
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128 b2:0755 |
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129 d:0644 |
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130 ro:0644 |
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131 |
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132 Manually reset the mode of the read-only file |
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133 |
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134 $ chmod a-w ro |
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135 |
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136 $ $PYTHON $TESTTMP/show_mode.py ro |
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137 ro:0444 |
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138 |
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139 Now the file is present, try to update and check the permissions of the file |
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140 |
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141 $ hg update -r 2 --traceback |
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142 1 files updated, 0 files merged, 0 files removed, 0 files unresolved |
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143 |
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144 $ $PYTHON $TESTTMP/show_mode.py ro |
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145 ro:0644 |
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146 |
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147 # The behavior is the same as without atomic update |