branchcache: use an explicit class for the v2 version
This prepare the introduction of an experimental v3 format version.
In the process, we move the description of the format in that new class.
#require no-windows
$ . "$TESTDIR/remotefilelog-library.sh"
$ hg init master
$ cd master
$ cat >> .hg/hgrc <<EOF
> [remotefilelog]
> server=True
> EOF
$ echo x > x
$ hg commit -qAm x
$ echo y >> x
$ hg commit -qAm y
$ echo z >> x
$ hg commit -qAm z
$ echo a > a
$ hg commit -qAm a
$ cd ..
$ hgcloneshallow ssh://user@dummy/master shallow -q
2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob)
$ cd shallow
Test blame
$ hg blame x
0: x
1: y
2: z
2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob)
Test grepping the working directory.
$ hg grep --all-files x
x:x
$ echo foo >> x
$ hg grep --all-files x
x:x