$ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > [web]
  > push_ssl = false
  > allow_push = *
  > [phases]
  > publish = False
  > [alias]
  > qlog = log --template='{rev} - {node|short} {desc} ({phase})\n'
  > [diff]
  > git = 1
  > unified = 0
  > [extensions]
  > hgext.rebase=
  > hgext.graphlog=
  > EOF
  $ echo "obsolete=$(echo $(dirname $TESTDIR))/hgext/obsolete.py" >> $HGRCPATH
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $HGRCPATH
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1"
  > }

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

various init

  $ hg init local
  $ cd local
  $ mkcommit a
  $ mkcommit b
  $ cat >> .hg/hgrc << EOF
  > [phases]
  > publish = True
  > EOF
  $ hg pull -q . # make 1 public
  $ rm .hg/hgrc
  $ mkcommit c
  $ mkcommit d
  $ hg up 1
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ mkcommit e -q
  created new head
  $ mkcommit f
  $ hg qlog
  5 - e44648563c73 add f (draft)
  4 - fbb94e3a0ecf add e (draft)
  3 - 47d2a3944de8 add d (draft)
  2 - 4538525df7e2 add c (draft)
  1 - 7c3bad9141dc add b (public)
  0 - 1f0dee641bb7 add a (public)

test simple kill

  $ hg kill 5
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory now at fbb94e3a0ecf
  $ hg qlog
  4 - fbb94e3a0ecf add e (draft)
  3 - 47d2a3944de8 add d (draft)
  2 - 4538525df7e2 add c (draft)
  1 - 7c3bad9141dc add b (public)
  0 - 1f0dee641bb7 add a (public)

test multiple kill

  $ hg kill 4 3
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory now at 7c3bad9141dc
  $ hg qlog
  2 - 4538525df7e2 add c (draft)
  1 - 7c3bad9141dc add b (public)
  0 - 1f0dee641bb7 add a (public)
  $ cd ..

##########################
importing Parren test
##########################

  $ cat << EOF >> $HGRCPATH
  > [ui]
  > logtemplate = "{rev}\t{bookmarks}: {desc|firstline} - {author|user}\n"
  > EOF

Creating And Updating Changeset
===============================

Setup the Base Repo
-------------------

We start with a plain base repo::

  $ hg init main; cd main
  $ cat >main-file-1 <<-EOF
  > One
  > 
  > Two
  > 
  > Three
  > EOF
  $ echo Two >main-file-2
  $ hg add
  adding main-file-1
  adding main-file-2
  $ hg commit --message base
  $ cd ..

and clone this into a new repo where we do our work::

  $ hg clone main work
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd work


Create First Patch
------------------

To begin with, we just do the changes that will be the initial version of the changeset::

  $ echo One >file-from-A
  $ sed -i'' -e s/One/Eins/ main-file-1
  $ hg add file-from-A

So this is what we would like our changeset to be::

  $ hg diff
  diff --git a/file-from-A b/file-from-A
  new file mode 100644
  --- /dev/null
  +++ b/file-from-A
  @@ -0,0 +1,1 @@
  +One
  diff --git a/main-file-1 b/main-file-1
  --- a/main-file-1
  +++ b/main-file-1
  @@ -1,1 +1,1 @@
  -One
  +Eins

To commit it we just - commit it::

  $ hg commit --message "a nifty feature"

and place a bookmark so we can easily refer to it again (which we could have done before the commit)::

  $ hg book feature-A


Create Second Patch
-------------------

Let's do this again for the second changeset::

  $ echo Two >file-from-B
  $ sed -i'' -e s/Two/Zwie/ main-file-1
  $ hg add file-from-B

Before committing, however, we need to switch to a new bookmark for the second
changeset. Otherwise we would inadvertently move the bookmark for our first changeset.
It is therefore advisable to always set the bookmark before committing::

  $ hg book feature-B
  $ hg commit --message "another feature"

So here we are::

  $ hg book
     feature-A                 1:568a468b60fc
   * feature-B                 2:7b36850622b2


Fix The Second Patch
--------------------

There's a typo in feature-B. We spelled *Zwie* instead of *Zwei*::

  $ hg diff --change tip | grep -F Zwie
  +Zwie

Fixing this is very easy. Just change::

  $ sed -i'' -e s/Zwie/Zwei/ main-file-1

and **amend**::

  $ hg amend --note "fix spelling of Zwei"

The `--note` is our commit message for the *update* only. So its only purpose
is to document the evolution of the changeset. If we use `--message` with
`amend`, it replaces the commit message of the changeset itself.

This results in a new single changeset for our amended changeset, and the old
changeset plus the updating changeset are hidden from view by default::

  $ hg log
  4	feature-B: another feature - test
  1	feature-A: a nifty feature - test
  0	: base - test

  $ hg up feature-A -q
  $ hg bookmark -i feature-A
  $ sed -i'' -e s/Eins/Un/ main-file-1

  $ hg amend --note 'french looks better'
  1 new unstables changesets
  $ hg log
  6	feature-A: a nifty feature - test
  4	feature-B: another feature - test
  1	: a nifty feature - test
  0	: base - test
  $ hg up -q 0
  $ glog --hidden
  o  6:23409eba69a0@default(draft) a nifty feature
  |
  | o  5:e416e48b2742@default(secret) french looks better
  | |
  | | o  4:f8111a076f09@default(draft) another feature
  | |/
  | | o  3:524e478d4811@default(secret) fix spelling of Zwei
  | | |
  | | o  2:7b36850622b2@default(secret) another feature
  | |/
  | o  1:568a468b60fc@default(draft) a nifty feature
  |/
  @  0:e55e0562ee93@default(draft) base
  
  $ hg debugsuccessors
  524e478d4811 f8111a076f09
  568a468b60fc 23409eba69a0
  7b36850622b2 f8111a076f09
  e416e48b2742 23409eba69a0
  $ hg stabilize
  move:[4] another feature
  atop:[6] a nifty feature
  merging main-file-1
  $ hg log
  7	feature-B: another feature - test
  6	feature-A: a nifty feature - test
  0	: base - test

Test commit -o options

  $ hg up 6
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg revert -r 7 --all
  adding file-from-B
  reverting main-file-1
  $ sed -i'' -e s/Zwei/deux/ main-file-1
  $ hg commit -m 'another feature that rox' -o 7
  created new head
  $ hg log
  8	feature-B: another feature that rox - test
  6	feature-A: a nifty feature - test
  0	: base - test
  $ cd ..

enable general delta

  $ cat << EOF >> $HGRCPATH
  > [format]
  > generaldelta=1
  > EOF



  $ hg init alpha
  $ cd alpha
  $ echo 'base' > firstfile
  $ hg add firstfile
  $ hg ci -m 'base'

  $ cd ..
  $ hg clone -Ur 0 alpha beta
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  $ cd alpha

  $ cat << EOF > A
  > We
  > need
  > some
  > kind
  > of 
  > file
  > big
  > enough
  > to
  > prevent
  > snapshot
  > .
  > yes
  > new
  > lines
  > are
  > useless
  > .
  > EOF
  $ hg add A
  $ hg commit -m 'adding A'
  $ hg mv A B
  $ echo '.' >> B
  $ hg amend -m 'add B'
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  3 files, 4 changesets, 4 total revisions
  $ hg --config extensions.hgext.mq= strip 'extinct()'
  saved backup bundle to $TESTTMP/alpha/.hg/strip-backup/e87767087a57-backup.hg
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  2 files, 2 changesets, 2 total revisions
  $ cd ..

Clone just this branch

  $ cd beta
  $ hg pull -r tip ../alpha
  pulling from ../alpha
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  (run 'hg update' to get a working copy)
  $ hg up
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved