Let R be a repo served by an hg daemon on a machine with an empty largefiles
cache. Pushing a largefiles repo to R will result in a no-such-file-or-directory
OSError because putlfile will attempt to create a temporary file in
R/.hg/largefiles, which does not yet exist.
This patch also adds a regression test for this scenario.
Before, a tempfile was used to create a temp file was created with 600
permissions and the uploaded data was written into it. This file was
then *copied* to .hg/largefiles/<hash>.
We now simply use atomictempfile to write the data to a temp file with
the right permissions and then rename that into place.
This is consistent with the rest of Mercurial's code, mirroring the
try-finally-unlink structure elsewhere. Furthermore, it fixes the case where
largefiles throws an IOError on Windows when the temporary file is opened a
second time by copytocacheabsolute.
This patch creates the temporary file in the repo's largefiles store rather than
/tmp, which might be a different filesystem.
The original intent was that the largefiles would primarily be in the
repository, with the global cache being only that--a cache. The naming
conventions and actual intent have both strayed. In this first patch, the
naming conventions are switched to match the actual intent, as are the
configuration options.
This is mainly about keeping code under the 80-column limit with as
few backslashes as possible. I am deliberately not making any logic or
behaviour changes here and have restrained myself to a few "peephole"
refactorings.
- fix some ungrammatical/unclear/incorrect comments/docstrings
- rewrite some really unclear comments/docstrings
- make formatting/style more consistent with the rest of Mercurial
(lowercase without period unless it's really multiple sentences)
- wrap to 75 columns
- always say "largefile(s)", not "lfile(s)" (or "big files")
- one space between sentences, not two
