view tests/test-issue1802.t @ 15337:cf5f9df6406b stable

windows: recompute flags when committing a merge (issue1802) Before this patch, Windows always did the wrong thing with exec bits when committing a merge: consult the flags in first parent. Now we manually recompute the result of merging flags at commit time, which almost always does the right thing (except when there are conflicts between symlink and exec flags). To do this, we: - pull flag synthesis out into its own function - delay building this function unless it's needed - add a merge case that compares flags in local and other against the ancestor This has been tested in multiple ways on Linux: - running the whole test suite with both old and new code in place, checking for differences in each flags() result - running the whole test suite while comparing real on-disk flags against synthetic ones for merges - test-issue1802 (from Martin Geisler) which disables exec bit checking on Unix
author Matt Mackall <mpm@selenic.com>
date Sat, 22 Oct 2011 16:12:33 -0500
parents
children db0340f4b507
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Create extension that can disable exec checks:

  $ cat > noexec.py <<EOF
  > from mercurial import extensions, util
  > def setflags(orig, f, l, x):
  >     pass
  > def checkexec(orig, path):
  >     return False
  > def extsetup(ui):
  >     extensions.wrapfunction(util, 'setflags', setflags)
  >     extensions.wrapfunction(util, 'checkexec', checkexec)
  > EOF

  $ hg init unix-repo
  $ cd unix-repo
  $ touch a
  $ hg add a
  $ hg commit -m 'unix: add a'
  $ hg clone . ../win-repo
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ chmod +x a
  $ hg commit -m 'unix: chmod a'
  $ hg manifest -v
  755 * a

  $ cd ../win-repo

  $ touch b
  $ hg add b
  $ hg commit -m 'win: add b'

  $ hg manifest -v
  644   a
  644   b

  $ hg pull
  pulling from $TESTTMP/unix-repo
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files (+1 heads)
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg manifest -v -r tip
  755 * a

Simulate a Windows merge:

  $ hg --config extensions.n=$TESTTMP/noexec.py merge --debug
    searching for copies back to rev 1
    unmatched files in local:
     b
  resolving manifests
   overwrite None partial False
   ancestor a03b0deabf2b local d6fa54f68ae1+ remote 2d8bcf2dda39
   a: update permissions -> e
  updating: a 1/1 files (100.00%)
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

Simulate a Windows commit:

  $ hg --config extensions.n=$TESTTMP/noexec.py commit -m 'win: merge'

  $ hg manifest -v
  755 * a
  644   b