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4c9d79b852
Summary: Add a config option `fsmonitor.detectrace` and environment variable `HGDETECTRACE`. Once set, perform an additional query to check if there are writes to the working copy while `wctx._buildstatus()` is being calculated. Also enable the race detector for all fsmonitor tests. Reviewed By: wez Differential Revision: D8597957 fbshipit-source-id: 5d83d529641325dc8d5e72ad059eed8db27d1f2a
50 lines
1.0 KiB
Perl
50 lines
1.0 KiB
Perl
#require fsmonitor
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$ setconfig fsmonitor.detectrace=1
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$ newrepo
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No races for common operations
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$ touch x
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$ hg status
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? x
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$ rm x
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$ touch y
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$ hg status
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? y
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Create a race by write files by writing files if context._dirstatestatus is called
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$ mkdir c
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$ touch e f g
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$ cat > $TESTTMP/racy.py << EOF
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> from mercurial import context, extensions
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> def _race(orig, *args, **kwargs):
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> open('a', 'w').close()
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> open('f', 'w').close()
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> open('c/d.txt', 'w').close()
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> return orig(*args, **kwargs)
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> def uisetup(ui):
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> extensions.wrapfunction(context.workingctx, "_dirstatestatus", _race)
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> EOF
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$ hg status --config extensions.racy=$TESTTMP/racy.py
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abort: [race-detector] files changed when scanning changes in working copy:
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a
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c/d.txt
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f
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(this is an error because HGDETECTRACE or fsmonitor.detectrace is set to true)
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[75]
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Race detector can be turned off:
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$ hg status --config extensions.racy=$TESTTMP/racy.py --config fsmonitor.detectrace=0
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? a
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? c/d.txt
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? e
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? f
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? g
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? y
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