largefiles: fix a traceback when addremove follows a remove (issue3507) The problem only occurred if a file was removed with 'hg rm' (as opposed to the OS utilities), and then addremove was run before a commit. Both normal and large files were affected. Ensuring that the file exists prior to an lstat() for size seems like the Right Thing. But oddly enough, the missing file that was causing lstat() to blow up was a standin when a largefile was removed, which seems fishy, because a standin should never be added as a largefile. I was then able to get a standin added as a largefile (whose name is 'large') with hg addremove --config largefiles.patterns=**large which also causes a backtrace. That will be fixed next.

largefiles: defer lfdirstate.drop() until after commit (issue3364) The example in comment #9 of the bug writeup must be run exactly- it was the commit after the rm and prior to the addremove that screwed things up, because that commit noticed that the largefile was missing, called drop(), and then the original commit function did nothing (due to the file in the '!' state). The addremove command properly put it into the 'R' state, but it remained stuck in that state (because commit insisted 'nothing changed'). Without the commit prior to addremove, the problem didn't occur. Maybe this is an indication that lfdirstate needs to take a few more hints from the regular dirstate, regardless of what _it_ thinks the state is- similar inconsistency is probably still possible with this patch if the original commit succeeds but the lfdirstate write fails.

largefiles: fix addremove with -R option If a file was missing, the missing list contained a path relative to the repo. When building the matcher from that list, the file name ended up concatenated to cwd, causing the command to abort with '<file> not under root'. This rebuilds the missing list with paths relative to cwd.

dispatch: fix traceback when extension was tested with newer versions only The "worst" extension still is the one tested with the lowest tested version below the current version of Mercurial, but if an extension with was only tested with newer versions, it is considered a candidate for a bad extension, too. In this case extensions which have been tested with higher versions of Mercurial are considered better. This allows finding the oldest extension if ct can't be calculated correctly and therefore defaults to an empty tuple, and it involves less changes to the comparison logic during the current code freeze.

test-extension.t: use fixed version string instead of current tag Currently tests break with the current tag being 2.3-rc and tags set by the user could affect this test, too.

Added tag 2.3-rc for changeset a06e2681dd17