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

various init

  $ hg init local
  $ cd local
  $ hg states ready # XXX should be put in default config when state support it
  $ mkcommit a
  $ mkcommit b
  $ 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 published 1
  $ hg qlog
  5 - e44648563c73 add f (ready)
  4 - fbb94e3a0ecf add e (ready)
  3 - 47d2a3944de8 add d (ready)
  2 - 4538525df7e2 add c (ready)
  1 - 7c3bad9141dc add b (published)
  0 - 1f0dee641bb7 add a (published)

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 (ready)
  3 - 47d2a3944de8 add d (ready)
  2 - 4538525df7e2 add c (ready)
  1 - 7c3bad9141dc add b (published)
  0 - 1f0dee641bb7 add a (published)

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 (ready)
  1 - 7c3bad9141dc add b (published)
  0 - 1f0dee641bb7 add a (published)
  $ 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
  $ hg states ready
  $ 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
  $ hg states ready


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
  $ sed -i'' -e s/Eins/Un/ main-file-1

  $ hg amend --note 'french looks better'
  $ hg log
  6	feature-A: a nifty feature - test
  4	feature-B: another feature - test
  1	: a nifty feature - test
  0	: base - test
  $ hg evolve
  hg relocate --rev 8c7704f377af 1075109f9999
  $ hg up feature-B -q #prevent feature-A bookmark to move grml
  $ hg relocate -r 4 6 --traceback
  merging main-file-1
  $ hg log
  7	feature-B: another feature - test
  6	feature-A: a nifty feature - test
  0	: base - test