Mercurial > hg
annotate tests/test-logtoprocess.t @ 49275:c6a3243567b6
chg: replace mercurial.util.recvfds() by simpler pure Python implementation
On Python 3, we have socket.socket.recvmsg(). This makes it possible to receive
FDs in pure Python code. The new code behaves like the previous
implementations, except that it’s more strict about the format of the ancillary
data. This works because we know in which format the FDs are passed.
Because the code is (and always has been) specific to chg (payload is 1 byte,
number of passed FDs is limited) and we now have only one implementation and
the code is very short, I decided to stop exposing a function in
mercurial.util.
Note on terminology: The SCM_RIGHTS mechanism is used to share open file
descriptions to another process over a socket. The sending side passes an array
of file descriptors and the receiving side receives an array of file
descriptors. The file descriptors are different in general on both sides but
refer to the same open file descriptions. The two terms are often conflated,
even in the official documentation. That’s why I used “FD” above, which could
mean both “file descriptor” and “file description”.
author | Manuel Jacob <me@manueljacob.de> |
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date | Thu, 02 Jun 2022 23:57:56 +0200 |
parents | 42d2b31cee0b |
children | b3e77d536b53 |
rev | line source |
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1 #require no-windows |
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2 |
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3 ATTENTION: logtoprocess runs commands asynchronously. Be sure to append "| cat" |
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4 to hg commands, to wait for the output, if you want to test its output. |
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5 Otherwise the test will be flaky. |
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6 |
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7 Test if logtoprocess correctly captures command-related log calls. |
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8 |
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9 $ hg init |
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10 $ cat > $TESTTMP/foocommand.py << EOF |
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11 > from mercurial import registrar |
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12 > cmdtable = {} |
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13 > command = registrar.command(cmdtable) |
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14 > configtable = {} |
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15 > configitem = registrar.configitem(configtable) |
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16 > configitem(b'logtoprocess', b'foo', |
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17 > default=None, |
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18 > ) |
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19 > @command(b'foobar', []) |
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20 > def foo(ui, repo): |
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21 > ui.log(b'foo', b'a message: %s\n', b'spam') |
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22 > EOF |
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23 $ cp $HGRCPATH $HGRCPATH.bak |
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24 $ cat >> $HGRCPATH << EOF |
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25 > [extensions] |
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26 > logtoprocess= |
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27 > foocommand=$TESTTMP/foocommand.py |
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28 > [logtoprocess] |
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29 > command=(echo 'logtoprocess command output:'; |
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30 > echo "\$EVENT"; |
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31 > echo "\$MSG1") > $TESTTMP/command.log |
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32 > commandfinish=(echo 'logtoprocess commandfinish output:'; |
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33 > echo "\$EVENT"; |
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34 > echo "\$MSG1"; |
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35 > echo "canonical: \$OPT_CANONICAL_COMMAND") > $TESTTMP/commandfinish.log |
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36 > foo=(echo 'logtoprocess foo output:'; |
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37 > echo "\$EVENT"; |
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38 > echo "\$MSG1") > $TESTTMP/foo.log |
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39 > EOF |
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40 |
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41 Running a command triggers both a ui.log('command') and a |
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42 ui.log('commandfinish') call. The foo command also uses ui.log. |
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43 |
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44 Use sort to avoid ordering issues between the various processes we spawn: |
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45 $ hg fooba |
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46 $ sleep 1 |
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47 $ cat $TESTTMP/command.log | sort |
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48 |
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49 command |
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50 fooba |
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51 logtoprocess command output: |
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52 |
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53 #if no-chg |
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54 $ cat $TESTTMP/commandfinish.log | sort |
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55 |
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56 canonical: foobar |
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57 commandfinish |
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58 fooba exited 0 after * seconds (glob) |
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59 logtoprocess commandfinish output: |
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60 $ cat $TESTTMP/foo.log | sort |
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61 |
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62 a message: spam |
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63 foo |
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64 logtoprocess foo output: |
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65 #endif |
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66 |
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67 Confirm that logging blocked time catches stdio properly: |
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68 $ cp $HGRCPATH.bak $HGRCPATH |
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69 $ cat >> $HGRCPATH << EOF |
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70 > [extensions] |
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71 > logtoprocess= |
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72 > pager= |
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73 > [logtoprocess] |
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74 > uiblocked=echo "\$EVENT stdio \$OPT_STDIO_BLOCKED ms command \$OPT_COMMAND_DURATION ms" > $TESTTMP/uiblocked.log |
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75 > [ui] |
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76 > logblockedtimes=True |
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77 > EOF |
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78 |
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79 $ hg log |
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80 $ sleep 1 |
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81 $ cat $TESTTMP/uiblocked.log |
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82 uiblocked stdio [0-9]+.[0-9]* ms command [0-9]+.[0-9]* ms (re) |
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83 |
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84 Try to confirm that pager wait on logtoprocess: |
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85 |
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86 Add a script that wait on a file to appears for 5 seconds, if it sees it touch |
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87 another file or die after 5 seconds. If the scripts is awaited by hg, the |
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88 script will die after the timeout before we could touch the file and the |
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89 resulting file will not exists. If not, we will touch the file and see it. |
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90 |
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91 $ cat >> fakepager.py <<EOF |
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92 > import sys |
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93 > printed = False |
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94 > for line in sys.stdin: |
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95 > sys.stdout.write(line) |
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96 > printed = True |
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97 > if not printed: |
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98 > sys.stdout.write('paged empty output!\n') |
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99 > EOF |
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100 |
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101 $ cat > $TESTTMP/wait-output.sh << EOF |
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102 > #!/bin/sh |
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103 > for i in \`$TESTDIR/seq.py 50\`; do |
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104 > if [ -f "$TESTTMP/wait-for-touched" ]; |
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105 > then |
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106 > touch "$TESTTMP/touched"; |
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107 > break; |
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108 > else |
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109 > sleep 0.1; |
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110 > fi |
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111 > done |
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112 > EOF |
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113 $ chmod +x $TESTTMP/wait-output.sh |
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114 |
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115 $ cat >> $HGRCPATH << EOF |
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116 > [extensions] |
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117 > logtoprocess= |
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118 > pager= |
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119 > [pager] |
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120 > pager = "$PYTHON" $TESTTMP/fakepager.py |
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121 > [logtoprocess] |
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122 > commandfinish=$TESTTMP/wait-output.sh |
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123 > EOF |
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124 $ hg version -q --pager=always |
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125 Mercurial Distributed SCM (version *) (glob) |
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126 $ touch $TESTTMP/wait-for-touched |
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127 $ sleep 0.2 |
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128 $ test -f $TESTTMP/touched && echo "SUCCESS Pager is not waiting on ltp" || echo "FAIL Pager is waiting on ltp" |
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129 SUCCESS Pager is not waiting on ltp |