view README @ 863:e9693738f234

discovery: first version of the "hash tree" idea

We build a hash for each node based on the markers that applies to it and the
hash of its parent. This will allow a kind of discovery process for markers.

=============================
Mutable History For Mercurial
=============================

This package supplies the ``evolve`` extension for Mercurial, which
provides several commands to mutate history and deal with the
resulting issues.

It also:

    - enables the "changeset obsolescence" feature of Mercurial
    - issues several warning messages when trouble appears in your repository

**This extension is experimental and not yet meant for production.**

You can enable it by adding the line below to the ``extensions``
section of your hgrc::

    evolve = PATH/TO/mutable-history/hgext/evolve.py

We recommend reading the documentation first. An online version is
available here:

    http://hg-lab.logilab.org/doc/mutable-history/html/

Or see the ``doc/`` directory for a local copy.

Contribute
==========

The simplest way to contribute is to issue a pull request on Bitbucket
(https://bitbucket.org/marmoute/mutable-history).

However, some cutting-edge changes may be found in a mutable repository hosted
by logilab before they are published.

    http://hg-lab.logilab.org/wip/mutable-history/

Be sure to check latest draft changeset before submitting new changesets.


Changelog
=========

3.4.0 --

- added Augie Facklers `fastop` extension (usage not recommended yet)
- added progress support to obsolescence markers pushing
- added multiple output during obsolescence marrkers exchange
- record parent of pruned parent at prune time
- only push markers relevant to pushed subset
- only pull markers relevant to pulled subset (if server support)
- added progress support for push and pull of markers over wire protocol

3.3.0 -- 2014-03-04

- add verbose hint about how to handle corner case by hand.
  This should help people until evolve is able to to it itself.
- removed the qsync extension. The only user I knew about (logilab) is not
  using it anymore. It not compatible with coming Mercurial version 2.9.
- add progress indicator for long evolve command
- report troubles creation from `hg import`

3.2.0 -- 2013-11-15

- conform to the Mercurial custom of lowercase messages
- added a small extension to experiment with obsolescence marker push
- amend: drop the deprecated note option
- amend: use core mechanism for amend (fix multiple bugs)
- parents command: add "working directory parent is obsolete" message
- evolve command: allow updating to the successor if the parent is
  obsolete
- gdown and gup commands: add next and previous alias, respectively
- make grab aliases compatible with Mercurial 2.8
- Tested with 2.6, 2.7 and 2.8

3.1.0 -- 2013-02-11

- amend: drop deprecated --change option for amend
- alias: add a grab aliast to be used instead of graft -O
- touch: add a --duplicate option to *not* obsolete the old version
- touch: fix touching multiple revision at the same time
- evolve: add a --all option
- prune: various minor improvements
- prune: add option to prune a specific bookmark
- prune: add -u and -d option to control metadata

3.0.0 -- 2013-02-02

- compatibility with 2.5

2.2.0 --

- make evolve smarter at picking next troubled to solved without --any

2.1.0 -- 2012-12-03

- qsync fixes
- have qfold ask for commit message

2.0.0 -- 2012-10-26

- compat with mercurial 2.4

1.1.0 -- 2012-10-26

- fix troubles creation reporting from rebase
- rename latecomer to bumped
- renamed conflicting to divergent
- smarter divergent handling

1.0.2 -- 2012-09-19

- fix hg fold bug
- fix hg pull --rebase
- fix detection of conflict with external tools
- adapt to core movement (caches and --amend)

1.0.1 -- 2012-08-31

- documentation improvement
- fix a performance bug with hgweb

1.0 -- 2012-08-29

- Align with Mercurial version 2.3 (drop 2.2 support).
- stabilize handle killed parent
- stabilize handle late comer
- stabilize handle conflicting
- stabilize get a --continue switch
- merge and update ignore extinct changeset in most case.
- new "troubled()" revset
- summary now reports troubles changesets
- new touch command
- new fold command
- new basic olog alias

- rebase refuse to work on public changeset again
- rebase explicitly state that there is nothing to rebase because everything is
  extinct() when that happen.
- amend now cleanly abort when --change switch is misused


0.7 -- 2012-08-06

- hook: work around insanely huge value in obsolete pushkey call
- pushkey: properly handle abort during obsolete markers push
- amend: wrap the whole process in a single transaction.
- evolve: tweak and add EOL to kill warning
- obsolete: fix doc, rebase no longer aborts with --keep
- obsolete/evolve: fix grammar in prerequisite messages
- evolve: avoid duplication in graft wrapper
- evolve: graft --continue is optional, test

0.6 -- 2012-07-31

- obsolete: change warning output to match mercurial core on
- qsync: ignore unexistent nodes
- make compat server both compatible with "dump" and "dump%i" version

0.5 -- 2012-07-16

- obsolete: Detect conflicting changeset!
- obsolete: adapt to core: marker are written in transaction now
- evolve: add the solve alias to obsolete
- doc: big update of terms and summary of the concept
- evolve: switch the official name for "kill" to prune


0.4.1 -- 2012-07-10

- [convert] properly exclude null successors from convertion
- Ignore buggy marker in newerversion


0.4.0 -- 2012-07-06

- obsolete: public changeset are no longer latecomer.
- obsolete: move to official binary format
- adapt for new mercurial
- obsolete: we are not compatible with 2.1 any more

0.3.0 -- 2012-06-27

- 
- obsolete:  Add "latecomer" error detection (stabilize does not handle resolution yet)
- evolve:    Introduce a new `uncommit` command to remove change from a changeset
- rebase:    allow the use of --keep again
- commit:    --amend option create obsolete marker (but still strip)
- obsolete:  fewer marker are created when collapsing revision.
- revset:    add, successors(), allsuccessors(), precursors(), allprecursors(),
             latecomer() and hidden()
- evolve:    add `prune` alias to `kill`.
- stabilize: clearly state that stabilize does nto handle conflict
- template:  add an {obsolete} keyword

0.2.0 -- 2012-06-20

- stabilize: improve choice of the next changeset to stabilize
- stabilize: improve resolution of several corner case
- rebase:    handle removing empty changesets
- rebase:    handle --collapse
- evolve:   add `obsolete` alias to `kill`
- evolve:   add `evolve` alias to `stabilize`