view tests/test-histedit-no-backup.t @ 48454:473af5cbc209

rhg: Add support for `rhg status --copies`

Copy sources are collected during `status()` rather than after the fact like
in Python, because `status()` takes a `&mut` exclusive reference to the dirstate map
(in order to potentially mutate it for directory mtimes) and returns `Cow<'_, HgPath>`
that borrow the dirstate map.

Even though with `Cow` only some shared borrows remain, the still extend the same
lifetime of the initial `&mut` so the dirstate map cannot be borrowed again
to access copy sources after the fact:

https://doc.rust-lang.org/nomicon/lifetime-mismatch.html#limits-of-lifetimes

Additionally, collecting copy sources during the dirstate tree traversal that
`status()` already does avoids the cost of another traversal or other lookups
(though I haven’t benchmarked that cost).

Differential Revision: https://phab.mercurial-scm.org/D11899

#testcases abortcommand abortflag

#if abortflag
  $ cat >> $HGRCPATH <<EOF
  > [alias]
  > abort = histedit --abort
  > EOF
#endif

  $ . "$TESTDIR/histedit-helpers.sh"

Enable extension used by this test
  $ cat >>$HGRCPATH <<EOF
  > [extensions]
  > histedit=
  > EOF

=================================
Test backup-bundle config option|
=================================
Repo setup:
  $ hg init foo
  $ cd foo
  $ echo first>file
  $ hg ci -qAm one
  $ echo second>>file
  $ hg ci -m two
  $ echo third>>file
  $ hg ci -m three
  $ echo forth>>file
  $ hg ci -m four
  $ hg log -G --style compact
  @  3[tip]   7d5187087c79   1970-01-01 00:00 +0000   test
  |    four
  |
  o  2   80d23dfa866d   1970-01-01 00:00 +0000   test
  |    three
  |
  o  1   6153eb23e623   1970-01-01 00:00 +0000   test
  |    two
  |
  o  0   36b4bdd91f5b   1970-01-01 00:00 +0000   test
       one
  
Test when `backup-bundle` config option is enabled:
  $ hg histedit -r '36b4bdd91f5b' --commands - << EOF
  > pick 36b4bdd91f5b 0 one
  > pick 6153eb23e623 1 two
  > roll 80d23dfa866d 2 three
  > edit 7d5187087c79 3 four
  > EOF
  merging file
  Editing (7d5187087c79), commit as needed now to split the change
  (to edit 7d5187087c79, `hg histedit --continue` after making changes)
  [240]
  $ hg abort
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/foo/.hg/strip-backup/1d8f701c7b35-cf7be322-backup.hg
  saved backup bundle to $TESTTMP/foo/.hg/strip-backup/5c0056670bce-b54b65d0-backup.hg

Test when `backup-bundle` config option is not enabled
Enable config option:
  $ cat >>$HGRCPATH <<EOF
  > [rewrite]
  > backup-bundle = False
  > EOF

  $ hg histedit -r '36b4bdd91f5b' --commands - << EOF
  > pick 36b4bdd91f5b 0 one
  > pick 6153eb23e623 1 two
  > roll 80d23dfa866d 2 three
  > edit 7d5187087c79 3 four
  > EOF
  merging file
  Editing (7d5187087c79), commit as needed now to split the change
  (to edit 7d5187087c79, `hg histedit --continue` after making changes)
  [240]

  $ hg abort
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved