view tests/test-pull-r.out @ 10397:8cb81d75730c

mq: add parent node IDs to MQ patches on qrefresh/qnew

The goal of this patch is to add the IDs of the parents of applied MQ patches
into the patch file headers whenever qnew or qrefresh are run.

This will serve as a reminder of when the patches last applied cleanly and
will let us do more intelligent things in the future, such as:

    * Resolve conflicts found when qpushing to a new location by merging
      instead of simply showing rejects.

    * Display better diffs of versioned MQ patches because we can tell how the
      patched files have changed in the meantime.

Here are the new rules this patch introduces.  They are checked in this order:

    * If a patch currently has old, plain-style patch headers ("From:" and
      "Date:") do not change the style or add any new headers.

    * If the 'mq.plain' configuration setting is true, only plain-style
      headers will be used for all MQ patches.

    * qnew will initialize new patches with HG-style headers and fill in the
      "# Parent" header with the appropriate parent node.

    * qrefresh will refresh the "# Parent" header with the current parent of
      the current patch.

changeset:   2:effea6de0384
tag:         tip
parent:      0:bbd179dfa0a7
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     add bar

changeset:   1:ed1b79f46b9a
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     change foo

changeset:   0:bbd179dfa0a7
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     add foo

% pull a missing revision
abort: unknown revision 'missing'!
% pull multiple revisions with update
0:bbd179dfa0a7
rolling back last transaction
% pull -r 0
changeset:   0:bbd179dfa0a7
tag:         tip
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     add foo

% pull -r 1
changeset:   1:ed1b79f46b9a
tag:         tip
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     change foo

changeset:   0:bbd179dfa0a7
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     add foo

% pull -r 1 again