Summary:
Using .arc as the scratch and per-repository configuration directory
has some unfortunate consequenses in the real world. Among other
things, people forget to .gitignore it so it gets checked in.
Test Plan:
the only thing that seems to use this is the relative commit setting
for git. This diff consists of 2 commits, one for the .gitignore and
one for everything else.
Comment out the portion of my .git/config that defines the upstream
for the branch. Run arc diff --only with HEAD^ in
.arc/default-relative-commit. See that .gitignore is not included in
the resultant diff, that .arc no longer exists, and that .git/arc
exists and has HEAD^ in .git/arc/default-relative-commit.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T1233
Differential Revision: https://secure.phabricator.com/D2725
Summary:
This adds basic support for mutable history for arc diff and arc amend for
mercurial. This is purely opt-in (so it shouldn't affect anyone who doesn't want
this feature) by explicitly setting
"immutable_history" : false
in arc configuration.
This also fixes another instance of weird behaviour for multiple heads - the
first instance was fixed here:
https://github.com/facebook/arcanist/pull/28
Test Plan:
without "immutable_history" turned on)>
When ##arc diff## produces an update diff, it should list only commits that are
ancestors of the current revision - not ones from other heads.
Reviewers: epriestley
CC: csilvers, aran, Koolvin
Differential Revision: https://secure.phabricator.com/D2654
