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Evolve How To

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Add a changeset: ``commit``

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Just use commit as usual. New changesets will be in the `draft` phase.

Rewrite a changeset: ``amend``

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To understand what the result of amend will be I use the two following

aliases  [#]_::

    # diff what amend will look likes

    pdiff=diff --rev .^

    # status what amend will look likes

    pstatus=status --rev .^

It takes various options to pick an author, a date and the branch of the

result... (see ``hg help amend`` for details).

This command can even be invoked on changesets with children (provided

none is public) !

          alias for amend is also available. But note that contrary to

          ``qrefresh``, ``amend`` does not exclude changes on file not specified

          on the command line.

          XXX add idank example

.. [#] (added by enable.sh)

Move a changeset: ``graft``

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The graft command introduced in 2.0 allows to "copy changes from other

branches onto the current branch".

The graft command has been altered to allow the creation of an

(actually recording changeset movements).

This is achieved using a new flag `-O` (or `old-obsolete`) [#]_.

.. warning:: when using graft --continue after conflict resolution you **MUST**

             pass `-O` or `-o` flag again because they are not saved for now

.. [#] add this `-O` to graft instead of a dedicated command is probably

       abusive. But this was very convenient for experimental purposes.

       This will likely change in non experimental release.

Delete a changeset: ``kill``

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Just use ``hg kill <some-rev>``.

Moving within the history: ``up`` ``gdown`` and ``gup``

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While working on mutable part of the history you often need to move between

mutable commit.

You just need to use standard update to work with evolve. For convenience, you

can use ``hg gup`` to move to children commit or ``hg gdown`` to move to working

directory parent commit.

.. note:: those command only exist for the convenience of getting qpush and qpop

          feeling back.

Collapse changesets: ``amend``

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Split a changeset

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by manual operation::

  ### you want to split changeset A: 42

  # update to A parent

  $ hg up 42^

  # restore content from A

  $ hg revert -r 42 --all

  # partially commit the first part

  $ hg record

  # commit the second part

  $ hg commit

  # informs mercurial of what appened

  # current changeset (.) and previous one (.^) replace A (42)

  $ hg kill --new . --new .^ 42

Update my current work in progess after a pull

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Whenever you are working on some changesets, it is more likely that a pull 

will, eventually, import new changesets in your tree.

rebased on the top of this newly imported subtree.

Move multiple changesets: ``rebase``

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You can still use rebase to move a whole segment of the changeset graph together.

             conflicting versions of the changesets.

Stabilize history: ``stabilize``

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When you rewrite (amend) a changeset with children without rewriting

those children you create *unstable* changesets and *suspended

obsolete* changesets.

When you are finished amending a given changeset, you will want to

declare it stable, in other words rebase its former descendants on its

newest version. This is not done automatically to avoid the

proliferation of useless hidden changesets.

             resolution

Fix my history afterward: ``kill -n``

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Sometimes you need to create an obsolete marker by hand. This may happen when

upstream has applied some of your patches for example.

marker.

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View diff from the last amend

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An ``odiff`` alias have been added by ``enable.sh``

:: 

    [alias]

    odiff = diff --rev 'limit(obsparents(.),1)' --rev .

View obsolete markers

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hgview is the only viewer that support this feature. You need an experimental

version available here:

    $ hg clone http://hg-dev.octopoid.net/hgwebdir.cgi/hgview/