config: introduce a new value for ui.relative-paths getting old behavior
The few places I've modified so far to respect ui.relative-paths have
traditionally defaulted showing the path from the repo root. However,
some commands (at least `hg files`) default to showing paths relative
to the cwd. Let's allow a special value for ui.relative-paths to
preserve the old behavior, so we can use that as default value for
it. I don't expect that anyone would want to set this value, so
perhaps we could have relied on it being unset, but I don't really
like behaviors that can only be achieved by a unset config option.
Differential Revision: https://phab.mercurial-scm.org/D5800
$ hg init
$ echo a > a
$ hg ci -Am0
adding a
$ hg -q clone . foo
$ touch .hg/store/journal
$ echo foo > a
$ hg ci -Am0
abort: abandoned transaction found!
(run 'hg recover' to clean up transaction)
[255]
$ hg recover
rolling back interrupted transaction
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 1 changesets with 1 changes to 1 files
Check that zero-size journals are correctly aborted:
#if unix-permissions no-root
$ hg bundle -qa repo.hg
$ chmod -w foo/.hg/store/00changelog.i
$ hg -R foo unbundle repo.hg
adding changesets
abort: Permission denied: '$TESTTMP/foo/.hg/store/.00changelog.i-*' (glob)
[255]
$ if test -f foo/.hg/store/journal; then echo 'journal exists :-('; fi
#endif