largefiles: handle that a found standin file doesn't exist when removing it I somehow ended up in a situation where hg crashed on an unlink I introduced in 328545c7d8a1. I don't know how it happened and can't reproduce it. It seems like it only can happen when the file is removed between the time of check in a working directory context walk that finds a standin file, and the time of use when we try to remove it because the corresponding largefile doesn't exist. But better safe than sorry: replace the plain unlink with unlinkpath with ignoremissing=True. That will also remove remaining empty directories, which arguably is more correct.

templater: use unfiltered changelog to calculate shortest() at constant time cl._partialmatch() can be pretty slow if hidden revisions are involved. This patch cancels the slowdown introduced by the previous patch by using an unfiltered changelog, which means shortest(node) isn't always the shortest. The result isn't perfect, but seems okay as long as shortest(node) is short enough to type and can be used as an identifier. (with hidden revisions) % hg log -R hg-committed -r0:20000 -T '{node|shortest}\n' --time > /dev/null (.^^) time: real 1.530 secs (user 1.480+0.000 sys 0.040+0.000) (.^) time: real 43.080 secs (user 43.060+0.000 sys 0.030+0.000) (.) time: real 1.680 secs (user 1.650+0.000 sys 0.020+0.000)

templater: do not use index.partialmatch() directly to calculate shortest() cl.index.partialmatch() isn't a drop-in replacement for cl._partialmatch(). It has no knowledge about hidden revisions, and it raises ValueError if a node shorter than 4 chars is given. Instead, use index.partialmatch() through cl._partialmatch(), which has no such problems and gives the identical result with/without --pure. The test output was sampled with --pure without this patch, which shows the most correct result. However, we'll need to switch to using an unfiltered changelog because _partialmatch() of a filtered changelog can be an order of magnitude slower. (with hidden revisions) % hg log -R hg-committed -r0:20000 -T '{node|shortest}\n' --time > /dev/null (.^) time: real 1.530 secs (user 1.480+0.000 sys 0.040+0.000) (.) time: real 43.080 secs (user 43.060+0.000 sys 0.030+0.000)