manifest.c: new extension code to lazily parse manifests
This lets us iterate manifests in order, but do a _lot_ less work in
the common case when we only care about a few manifest entries.
Many thanks to Mike Edgar for reviewing this in advance of it going
out to the list, which caught many things I missed.
This version of the patch includes C89 fixes from Sean Farley and
many correctness/efficiency cleanups from Martin von
Zweigbergk. Thanks to both!
http://mercurial.selenic.com/bts/issue2493
Testing tagging with the EOL extension
$ cat >> $HGRCPATH <<EOF
> [extensions]
> eol =
>
> [eol]
> native = CRLF
> EOF
setup repository
$ hg init repo
$ cd repo
$ cat > .hgeol <<EOF
> [patterns]
> ** = native
> EOF
$ printf "first\r\nsecond\r\nthird\r\n" > a.txt
$ hg commit --addremove -m 'checkin'
adding .hgeol
adding a.txt
Tag:
$ hg tag 1.0
Rewrite .hgtags file as it would look on a new checkout:
$ hg update -q null
$ hg update -q
Touch .hgtags file again:
$ hg tag 2.0
$ cd ..