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

  $ cat >> $HGRCPATH <<EOF

  > [extensions]

  > histedit=

  > EOF

  $ initrepo ()

  > {

  >     hg init r

  >     cd r

  >     for x in a b c d e f ; do

  >         echo $x > $x

  >         hg add $x

  >         hg ci -m $x

  >     done

  > }

  $ initrepo

log before edit

  $ hg log --graph

  @  changeset:   5:652413bf663e

  |  tag:         tip

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     f

  |

  o  changeset:   4:e860deea161a

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     e

  |

  o  changeset:   3:055a42cdd887

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     d

  |

  o  changeset:   2:177f92b77385

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     c

  |

  o  changeset:   1:d2ae7f538514

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     b

  |

  o  changeset:   0:cb9a9f314b8b

     user:        test

     date:        Thu Jan 01 00:00:00 1970 +0000

     summary:     a

edit the history

  $ hg histedit 177f92b77385 --commands - 2>&1 << EOF| fixbundle

  > pick 177f92b77385 c

  > pick 055a42cdd887 d

  > edit e860deea161a e

  > pick 652413bf663e f

  > EOF

  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  Make changes as needed, you may commit or record as needed now.

  When you are finished, run hg histedit --continue to resume.

Go at a random point and try to continue

  $ hg id -n

  3+

  $ hg up 0

  abort: histedit in progress

  (use 'hg histedit --continue' or 'hg histedit --abort')

  [255]

commit, then edit the revision

  $ hg ci -m 'wat'

  created new head

  $ echo a > e

  $ HGEDITOR='echo foobaz > ' hg histedit --continue 2>&1 | fixbundle

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg log --graph

  @  changeset:   6:b5f70786f9b0

  |  tag:         tip

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     f

  |

  o  changeset:   5:a5e1ba2f7afb

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     foobaz

  |

  o  changeset:   4:1a60820cd1f6

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     wat

  |

  o  changeset:   3:055a42cdd887

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     d

  |

  o  changeset:   2:177f92b77385

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     c

  |

  o  changeset:   1:d2ae7f538514

  |  user:        test

  |  date:        Thu Jan 01 00:00:00 1970 +0000

  |  summary:     b

  |

  o  changeset:   0:cb9a9f314b8b

     user:        test

     date:        Thu Jan 01 00:00:00 1970 +0000

     summary:     a

  $ hg cat e

  a

check histedit_source

  $ hg log --debug --rev 5

  changeset:   5:a5e1ba2f7afb899ef1581cea528fd885d2fca70d

  phase:       draft

  parent:      4:1a60820cd1f6004a362aa622ebc47d59bc48eb34

  parent:      -1:0000000000000000000000000000000000000000

  manifest:    5:5ad3be8791f39117565557781f5464363b918a45

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  files:       e

  extra:       branch=default

  extra:       histedit_source=e860deea161a2f77de56603b340ebbb4536308ae

  description:

  foobaz

  $ hg histedit tip --commands - 2>&1 <<EOF| fixbundle

  > edit b5f70786f9b0 f

  > EOF

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  Make changes as needed, you may commit or record as needed now.

  When you are finished, run hg histedit --continue to resume.

  $ hg status

  A f

  $ hg summary

  parent: 5:a5e1ba2f7afb 

   foobaz

  branch: default

  commit: 1 added (new branch head)

  update: 1 new changesets (update)

  hist:   1 remaining (histedit --continue)

(test also that editor is invoked if histedit is continued for

"edit" action)

  $ HGEDITOR='cat' hg histedit --continue

  f

  HG: Enter commit message.  Lines beginning with 'HG:' are removed.

  HG: Leave message empty to abort commit.

  HG: --

  HG: user: test

  HG: branch 'default'

  HG: added f

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  saved backup bundle to $TESTTMP/r/.hg/strip-backup/b5f70786f9b0-backup.hg (glob)

  $ hg status

log after edit

  $ hg log --limit 1

  changeset:   6:a107ee126658

  tag:         tip

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  summary:     f

say we'll change the message, but don't.

  $ cat > ../edit.sh <<EOF

  > cat "\$1" | sed s/pick/mess/ > tmp

  > mv tmp "\$1"

  > EOF

  $ HGEDITOR="sh ../edit.sh" hg histedit tip 2>&1 | fixbundle

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg status

  $ hg log --limit 1

  changeset:   6:1fd3b2fe7754

  tag:         tip

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  summary:     f

modify the message

check saving last-message.txt, at first

  $ cat > $TESTTMP/commitfailure.py <<EOF

  > from mercurial import util

  > def reposetup(ui, repo):

  >     class commitfailure(repo.__class__):

  >         def commit(self, *args, **kwargs):

  >             raise util.Abort('emulating unexpected abort')

  >     repo.__class__ = commitfailure

  > EOF

  $ cat >> .hg/hgrc <<EOF

  > [extensions]

  > # this failure occurs before editor invocation

  > commitfailure = $TESTTMP/commitfailure.py

  > EOF

  $ cat > $TESTTMP/editor.sh <<EOF

  > echo "==== before editing"

  > cat \$1

  > echo "===="

  > echo "check saving last-message.txt" >> \$1

  > EOF

(test that editor is not invoked before transaction starting)

  $ rm -f .hg/last-message.txt

  $ HGEDITOR="sh $TESTTMP/editor.sh" hg histedit tip --commands - 2>&1 << EOF | fixbundle

  > mess 1fd3b2fe7754 f

  > EOF

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  abort: emulating unexpected abort

  $ test -f .hg/last-message.txt

  [1]

  $ cat >> .hg/hgrc <<EOF

  > [extensions]

  > commitfailure = !

  > EOF

  $ hg histedit --abort -q

(test that editor is invoked and commit message is saved into

"last-message.txt")

  $ cat >> .hg/hgrc <<EOF

  > [hooks]

  > # this failure occurs after editor invocation

  > pretxncommit.unexpectedabort = false

  > EOF

  $ hg status --rev '1fd3b2fe7754^1' --rev 1fd3b2fe7754

  A f

  $ rm -f .hg/last-message.txt

  $ HGEDITOR="sh $TESTTMP/editor.sh" hg histedit tip --commands - 2>&1 << EOF

  > mess 1fd3b2fe7754 f

  > EOF

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  adding f

  ==== before editing

  f

  HG: Enter commit message.  Lines beginning with 'HG:' are removed.

  HG: Leave message empty to abort commit.

  HG: --

  HG: user: test

  HG: branch 'default'

  HG: added f

  ====

  transaction abort!

  rollback completed

  note: commit message saved in .hg/last-message.txt

  abort: pretxncommit.unexpectedabort hook exited with status 1

  [255]

  $ cat .hg/last-message.txt

  f

  check saving last-message.txt

(test also that editor is invoked if histedit is continued for "message"

action)

  $ HGEDITOR=cat hg histedit --continue

  f

  HG: Enter commit message.  Lines beginning with 'HG:' are removed.

  HG: Leave message empty to abort commit.

  HG: --

  HG: user: test

  HG: branch 'default'

  HG: added f

  transaction abort!

  rollback completed

  note: commit message saved in .hg/last-message.txt

  abort: pretxncommit.unexpectedabort hook exited with status 1

  [255]

  $ cat >> .hg/hgrc <<EOF

  > [hooks]

  > pretxncommit.unexpectedabort =

  > EOF

  $ hg histedit --abort -q

then, check "modify the message" itself

  $ hg histedit tip --commands - 2>&1 << EOF | fixbundle

  > mess 1fd3b2fe7754 f

  > EOF

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg status

  $ hg log --limit 1

  changeset:   6:62feedb1200e

  tag:         tip

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  summary:     f

rollback should not work after a histedit

  $ hg rollback

  no rollback information available

  [1]

  $ cd ..

  $ hg clone -qr0 r r0

  $ cd r0

  $ hg phase -fdr0

  $ hg histedit --commands - 0 2>&1 << EOF

  > edit cb9a9f314b8b a > $EDITED

  > EOF

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  adding a

  Make changes as needed, you may commit or record as needed now.

  When you are finished, run hg histedit --continue to resume.

  [1]

  $ HGEDITOR=true hg histedit --continue

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  saved backup bundle to $TESTTMP/r0/.hg/strip-backup/cb9a9f314b8b-backup.hg (glob)