$ cat >> $HGRCPATH <<EOF

  > [extensions]

  > hgext.graphlog=

  > EOF

  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $HGRCPATH

  $ glog() {

  >   hg glog --template '{rev}@{branch}({phase}) {desc|firstline}\n' "$@"

  > }

  $ hg init repo --traceback

  $ cd repo

  $ echo a > a

  $ hg ci -Am adda

  adding a

Test that amend captures branches

  $ hg branch foo

  marked working directory as branch foo

  (branches are permanent and global, did you want a bookmark?)

  $ hg amend -d '0 0'

  $ hg debugobsolete

  07f4944404050f47db2e5c5071e0e84e7a27bba9 6a022cbb61d5ba0f03f98ff2d36319dfea1034ae 0 (*) {'user': 'test'} (glob)

  b2e32ffb533cbe1d5759638c0cd4e8abc43b2738 0 {07f4944404050f47db2e5c5071e0e84e7a27bba9} (*) {'user': 'test'} (glob)

  $ hg branch

  foo

  $ hg branches

  foo                            2:6a022cbb61d5

  $ glog

  @  2@foo(draft) adda

Test no-op

  $ hg amend -d '0 0'

  nothing changed

  [1]

  $ glog

  @  2@foo(draft) adda

Test forcing the message to the same value, no intermediate revision.

  $ hg amend -d '0 0' -m 'adda'

  nothing changed

  [1]

  $ glog

  @  2@foo(draft) adda

Test collapsing into an existing revision, no intermediate revision.

  $ echo a >> a

  $ hg ci -m changea

  $ echo a > a

  $ hg status

  M a

  $ hg pstatus

  $ hg diff

  diff -r f7a50201fe3a a

  --- a/a	Thu Jan 01 00:00:00 1970 +0000

  +++ b/a	* +0000 (glob)

  @@ -1,2 +1,1 @@

   a

  -a

  $ hg pdiff

  $ hg ci -m reseta

  $ hg debugobsolete

  07f4944404050f47db2e5c5071e0e84e7a27bba9 6a022cbb61d5ba0f03f98ff2d36319dfea1034ae 0 (*) {'user': 'test'} (glob)

  b2e32ffb533cbe1d5759638c0cd4e8abc43b2738 0 {07f4944404050f47db2e5c5071e0e84e7a27bba9} (*) {'user': 'test'} (glob)

  $ hg phase 2

  2: draft

  $ glog

  @  4@foo(draft) reseta

  |

  o  3@foo(draft) changea

  |

  o  2@foo(draft) adda

Specify precise commit date with -d

  $ hg amend -d '2001-02-03 04:05:06 +0700'

  $ hg parents --template '{rev}  {date|date}\n'

  5  Sat Feb 03 04:05:06 2001 +0700

Specify "now" as commit date with -D

  $ before=`date +%s`

  $ hg amend -D

  $ commit=`hg parents --template '{date|hgdate} rev{rev}\n'`

  $ after=`date +%s`

  $ (echo $before ; echo $commit; echo $after) | sort -k1 -n -s

  \d+ (re)

  \d+ 0 rev6 (re)

  \d+ (re)

Specify current user as committer with -U

  $ HGUSER=newbie hg amend -U

  $ hg parents --template '{rev}  {author}\n'

  7  newbie

Check that --logfile works

  $ echo "logfile message" > logfile.txt

  $ hg amend -l logfile.txt

  $ hg log -r . -T "{desc}\n"

  logfile message

# Make sure we don't get reparented to -1 with no username (issue4211)

  $ HGUSER=

  $ hg amend -e --config ui.username= -m "empty user"

  abort: no username supplied

  (use "hg config --edit" to set your username)

  [255]

  $ hg sum

  parent: 8:* tip (glob)

   logfile message

  branch: foo

  commit: 1 unknown (clean)

  update: (current)

  phases: 3 draft

Check the help

  $ hg amend -h

  hg amend [OPTION]... [FILE]...

  aliases: refresh

  combine a changeset with updates and replace it with a new one

      Commits a new changeset incorporating both the changes to the given files

      and all the changes from the current parent changeset into the repository.

      If you don't specify -m, the parent's message will be reused.

      Behind the scenes, Mercurial first commits the update as a regular child

      of the current parent. Then it creates a new commit on the parent's

      parents with the updated contents. Then it changes the working copy parent

      to this new combined changeset. Finally, the old changeset and its update

      Returns 0 on success, 1 if nothing changed.

  options ([+] can be repeated):

   -A --addremove           mark new/missing files as added/removed before

                            committing

   -e --edit                invoke editor on commit messages

      --close-branch        mark a branch as closed, hiding it from the branch

                            list

   -s --secret              use the secret phase for committing

   -I --include PATTERN [+] include names matching the given patterns

   -X --exclude PATTERN [+] exclude names matching the given patterns

   -m --message TEXT        use text as commit message

   -l --logfile FILE        read commit message from file

   -d --date DATE           record the specified date as commit date

   -u --user USER           record the specified user as committer

   -D --current-date        record the current date as commit date

   -U --current-user        record the current user as committer

   -i --interactive         use interactive mode

  (some details hidden, use --verbose to show complete help)