view tests/test-clone-pull-corruption.t @ 14980:28e98a8b173d stable

i18n: use UTF-8 string to lower filename for case collision check

Some character sets, cp932 (known as Shift-JIS for Japanese) for
example, use 0x41('A') - 0x5A('Z') and 0x61('a') - 0x7A('z') as second
or later character.

In such character set, case collision checking recognizes different
files as CASEFOLDED same file, if filenames are treated as byte
sequence.

win32mbcs extension is not appropriate to handle this problem, because
this problem can occur on other than Windows platform only if
problematic character set is used.

Callers of util.checkcase() use known ASCII filenames as last
component of path, and string.lower() is not applied to directory part
of path. So, util.checkcase() is kept intact, even though it applies
string.lower() to filenames.

Corrupt an hg repo with a pull started during an aborted commit
Create two repos, so that one of them can pull from the other one.

  $ hg init source
  $ cd source
  $ touch foo
  $ hg add foo
  $ hg ci -m 'add foo'
  $ hg clone . ../corrupted
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo >> foo
  $ hg ci -m 'change foo'

Add a hook to wait 5 seconds and then abort the commit

  $ cd ../corrupted
  $ echo '[hooks]' >> .hg/hgrc
  $ echo 'pretxncommit = sleep 5; exit 1' >> .hg/hgrc

start a commit...

  $ touch bar
  $ hg add bar
  $ hg ci -m 'add bar' &

... and start a pull while the commit is still running

  $ sleep 1
  $ hg pull ../source 2>/dev/null
  pulling from ../source
  transaction abort!
  rollback completed
  abort: pretxncommit hook exited with status 1
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  (run 'hg update' to get a working copy)

see what happened

  $ wait
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 2 changesets, 2 total revisions