trydiff: use sets, not lists, for containment checks
This only has a noticeable effect on diffs touching A LOT of
files. For example, it takes
hg diff -r FIREFOX_AURORA_30_BASE -r FIREFOX_AURORA_35_BASE
from 1m55.465s to 1m32.354s. That diff has over 50k files.
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing:
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.