In an upcoming patch we'll have different behavior here for when 'merge
--force' is used as opposed to when other kinds of force operations are
performed, like rebases.
Previously, if the largefile was deleted at the time of a commit, the standin
was silently not updated and its current state (possibly garbage) was recorded.
The test makes it look like this is somewhat of an edge case, but the same thing
happens when an `hg revert` followed by `rm` changes the standin.
Aside from the second invocation of this in lfutil.updatestandinsbymatch()
(which is what triggers this test case), the three other uses are guarded by
dirstate checks for added or modified, or an existence check in the filesystem.
So aborting in lfutil.updatestandins() should be safe, and will avoid silent
skips in the future if this is used elsewhere.
The change in 6fce9a02f069 to handle a normal -> largefile switch was too
aggressive in preserving the original matcher names. If a largefile is
explicitly provided by the user, but only the standin exists in dirstate, then
only the standin can be committed.
There's still maybe an issue when the largefile is deleted outside of Mercurial:
$ rm large
$ hg ci -m "oops" large
large: The system cannot find the file specified
nothing changed
[1]
92117e4f6f8d improved merging of standin files referencing missing largefiles.
It did however not test or fix commits of such merges; it would abort.
To fix that, change copytostore to skip and warn about missing largefiles
with a message similar the one for failing get from remote filestores. (It
would perhaps in both cases be better to emit a more helpful warning like
"warning: standin file for large1 references 58e24f733a which can't be found in
the local store".)
To test this, make sure commit doesn't find the "missing" largefile in the global
usercache. For further testing, verify that update and status works as expected
after this.
This will also effectively backout 159c82dd6523.
Previous patch introduced 'revset.predicate' decorator to register
revset predicate function easily.
But it shouldn't be used in extension directly, because it registers
specified function immediately. Registration itself can't be restored,
even if extension loading fails after that.
Therefore, registration should be delayed until 'uisetup()' or so.
This patch uses 'extpredicate' decorator derived from 'delayregistrar'
to register predicate in extension easily.
This patch also tests whether 'registrar.delayregistrar' avoids
function registration if 'setup()' isn't invoked on it, because
'extpredicate' is the first user of it.
Once we get a matcher down into manifestmerge, we can make narrowhg
work more easily and potentially let manifest.match().diff() do less
work in manifestmerge.
The largefiles merge code (currently) does not handle change/delete conflicts.
So fall back to regular filemerge in that case.
Making this code handle change/delete conflicts is left as an exercise for the
future.
We're going to treat these conflicts similarly to merge conflicts, and this
change to the way we store things in memory makes future code a lot simpler.
'unexpected putlfile response: None' when an http error occurs is not very
helpful.
Instead, leave the handling of urllib2.HTTPError exceptions to other layers.
If the store somehow got corrupted, users could end up in weird situations that
were very hard to recover from or lead to propagation of the corruption.
Instead, spend the extra time checking the hash when copying to the working
directory. If it doesn't match, emit a warning, and don't put wrong content in
the working directory.
Commit of corresponding normal/largefiles pairs would only commit the standin.
That is usually fine, except if either the normal file or the standin is a
remove while the other is an add. In that case it would either give duplicate
colliding entries or lose the file.
Instead, commit both filenames if one of them is a remove.
Before, when merging revisions with missing largefiles, the missing largefiles
would be fetched as a part of the merge. If that failed (for example because
the main repository temporarily was unavailable), the largefile would be left
missing. However, the next commit would abort and (seemed to) fail when
markcommitted tried to mark the standin file as normal and thus had to hash the
largefile that didn't exist. (Actually, the commit would succeed but the
largefile update that follows right after the commit transaction would abort -
quite confusing.)
To fix that, make sure that synclfdirstate only marks files as normal if they
actually exist.
The home of 'Abort' is 'error' not 'util' however, a lot of code seems to be
confused about that and gives all the credit to 'util' instead of the
hardworking 'error'. In a spirit of equity, we break the cycle of injustice and
give back to 'error' the respect it deserves. And screw that 'util' poser.
For great justice.
This regressed in f07f4c45a8f2, when trying to conditionally disable archiving
of largefiles.
I'm not sure if wrapfunction() is the right way to do this, but it seems to
work. The mysterious issue with lfstatus getting out of sync in the proxy and
the unfiltered view crops up again here. See the referenced cset for more info.
