largefiles: copy files into .hg/largefiles atomically Copying from the user cache into .hg/largefiles could fail halfway though with a partially written file.

largefiles: write .hg/largefiles/ files atomically Before, it was possible to create a .hg/largefiles/hash file with truncated content, i.e., content where SHA-1(content) != hash This breaks the fundamental invariant in largefiles that the file content for files in .hg/largefiles hash to the filename.

largefiles: add comment about non-atomic working directory When updating the working copy with a normal 'hg update', we also don't use atomic writes.

tests: use an alias to make msys 'pwd' return paths with forward slashes

tests: skip cvs tests with msys on windows They will fail with weird 'ssh' errors.

tests: introduce 'hghave msys' to skip tests that would fail because of msys

merge with stable

convert: handle trailing slashes in filemap better (issue3124)

tests: remove test-casecollision-i18n.t The result of this test is quite suspect. Remove it for now as it now correctly breaks on HFS+.

posix: fix HFS+ percent-encoding folding We use 'ignore' rather than 'replace' so we don't have to deal with u+FFFD in UTF-8 round-trip.