test-glog.t: use printrevset extension to trace rewritten revsets
Using "hg log -G --print-revset" prints the revset generated by graphlog and
exits. This helps debugging and writing shorter tests.
It has been suggested to handle these tests with doctests. I think the
extension approach is better because:
- It tests the actual parameter set passed to graphlog.revset(), not what we
expect it to be. 'branch' and 'only-branch' are currently distinct options
but nothing prevents fancyopts to grow a notion of option aliasing one day,
where both options would be merged before reaching the command.
- It can be used as debug output interleaved with real log calls.
v2:
- Use a test extension instead of a global deprecated new option
Minimal hgk check
$ echo "[extensions]" >> $HGRCPATH
$ echo "hgk=" >> $HGRCPATH
$ hg init repo
$ cd repo
$ echo a > a
$ hg ci -Am adda
adding a
$ hg debug-cat-file commit 0
tree a0c8bcbbb45c
parent 000000000000
author test 0 0
committer test 0 0
revision 0
branch default
adda