author | Matt Harbison <matt_harbison@yahoo.com> |
Sun, 12 Dec 2021 20:01:05 -0500 | |
changeset 48511 | a4d8de93023c |
parent 48498 | bc6547f61310 |
child 48695 | e845537f6adb |
permissions | -rw-r--r-- |
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#testcases dirstate-v1 dirstate-v2 |
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#if dirstate-v2 |
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$ cat >> $HGRCPATH << EOF |
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> [format] |
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> exp-rc-dirstate-v2=1 |
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> [storage] |
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> dirstate-v2.slow-path=allow |
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> EOF |
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#endif |
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Checking the size/permissions/file-type of files stored in the |
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dirstate after an update where the files are changed concurrently |
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outside of hg's control. |
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$ hg init repo |
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$ cd repo |
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$ echo a > a |
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$ hg commit -qAm _ |
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$ echo aa > a |
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$ hg commit -m _ |
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# this sleep is there to ensure current time has -at-least- one second away |
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# from the current time. It ensure the mtime is not ambiguous. If the test |
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# "sleep" longer this will be fine. |
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# It is not used to synchronise parallele operation so it is "fine" to use it. |
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$ sleep 1 |
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$ hg status |
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$ hg debugdirstate --no-dates |
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n 644 3 (set |unset) a (re) |
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|
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$ cat >> $TESTTMP/dirstaterace.py << EOF |
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> import time |
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> from mercurial import ( |
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> commit, |
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> extensions, |
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> merge, |
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> ) |
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> def extsetup(ui): |
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> extensions.wrapfunction(merge, 'applyupdates', wrap(0)) |
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> extensions.wrapfunction(commit, 'commitctx', wrap(1)) |
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> def wrap(duration): |
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> def new(orig, *args, **kwargs): |
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> res = orig(*args, **kwargs) |
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> with open("a", "w"): |
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> pass # just truncate the file |
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> time.sleep(duration) |
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> return res |
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> return new |
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> EOF |
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Do an update where file 'a' is changed between hg writing it to disk |
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and hg writing the dirstate. The dirstate is correct nonetheless, and |
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so hg status correctly shows a as clean. |
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|
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$ hg up -r 0 --config extensions.race=$TESTTMP/dirstaterace.py |
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1 files updated, 0 files merged, 0 files removed, 0 files unresolved |
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$ hg debugdirstate --no-dates |
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n 644 2 (set |unset) a (re) |
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$ echo a > a; hg status; hg diff |
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Do a commit where file 'a' is changed between hg committing its new |
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revision into the repository, and the writing of the dirstate. |
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This used to results in a corrupted dirstate (size did not match committed size). |
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$ echo aaa > a; hg commit -qm _ |
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$ hg merge -qr 1; hg resolve -m; rm a.orig |
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warning: conflicts while merging a! (edit, then use 'hg resolve --mark') |
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(no more unresolved files) |
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$ cat a |
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<<<<<<< working copy: be46f74ce38d - test: _ |
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aaa |
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======= |
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aa |
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>>>>>>> merge rev: eb3fc6c17aa3 - test: _ |
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$ hg debugdirstate --no-dates |
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m 0 -2 (set |unset) a (re) |
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$ hg commit -m _ --config extensions.race=$TESTTMP/dirstaterace.py |
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$ hg debugdirstate --no-dates |
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n 0 -1 unset a |
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$ cat a | wc -c |
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*0 (re) |
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$ hg cat -r . a | wc -c |
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*105 (re) |
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$ hg status; hg diff --stat |
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M a |
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a | 5 ----- |
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1 files changed, 0 insertions(+), 5 deletions(-) |