tests: fix unionrepo path issue on msys (
issue3927)
largefiles: check unknown files with case awareness of the filesystem
Before this patch, largefiles extension checks unknown files in the
working directory always case sensitively.
This causes failure in updating from the revision X consisting of
'.hglf/A' (and "A" implicitly) to the revision Y consisting of 'a'
(not ".hglf/A") on case insensitive filesystem, because "A" in the
working directory is treated as colliding against and different from
'a' on the revision Y.
This patch uses "repo.dirstate.normalize()" to check unknown files
with case awareness of the filesystem.
largefiles: check existence of the file with case awareness of the filesystem
Before this patch, largefiles extension always unlinks largefiles
untracked on the target context in merging/updating after updating
working directory.
For example, it is assumed that the revision X consists of ".hglf/A"
(and "A" implicitly) and revision Y consists of "a" (not ".hglf/A").
In the case of updating from X to Y, largefiles extension tries to
unlink "A" after updating "a" in working directory. This causes
unexpected unlinking "a" on the case insensitive filesystem.
This patch checks existence of the file in the working context with
case awareness of the filesystem to prevent from such unexpected
unlinking.
"lfcommands._updatelfile()" also unlinks target file in the case
"largefile is tracked in the target context, but fails to be fetched".
This patch doesn't apply "repo.dirstate.normalize()" in this case,
because it should be already ensured in the manifest merging that
there is no normal file colliding against any largefiles.