i18n: detect UI language without POSIX-style locale variable on Windows (BC) On Windows, it isn't common to set LANG environment variable. This patch makes gettext honor Windows-style UI language [1] if no locale variables are set. Because of this change, LANG=C or HGPLAIN must be set in order to disable translation on non-English Windows. [1]: http://msdn.microsoft.com/en-us/library/dd374098(v=VS.85).aspx

locate: use ctx.matches instead of ctx.walk On mozilla-central, which is around 100,000 files, best of 5: $ hg --time locate > /dev/null before: real 1.460 secs (user 1.140+0.000 sys 0.320+0.000) after: real 0.620 secs (user 0.610+0.000 sys 0.020+0.000) $ hg --time locate README > /dev/null before: real 0.630 secs (user 0.330+0.000 sys 0.290+0.000) after: real 0.120 secs (user 0.110+0.000 sys 0.020+0.000) Larger repositories see correspondingly larger performance gains.

context: add a method to efficiently filter by match if possible For non-working contexts, walk and matches do the same thing. For working contexts, walk stats all the files and looks for unknown files, while matches just filters the dirstate by match.