... version 0.8

Version 0.9.1, under development, witnessed the following changes:

(./) The frontend program name lost the .py extension, so it's simply tailor now.

(./) The execution of external programs now uses Python 2.4 subprocess module (or an equivalent on older snakes), instead of the homegrown hack around popen, system and the like.

(./) Tailor is able to store original author and timestamp even committing to Subversion, given a properly configured target repository.

(./) All source backends know about a particular revision other than HEAD, INITIAL, that makes easier to migrate a whole repository.

(./) Made simpler bootstrapping toward some VC kinds[[FootNote(Only for SVN, Monotone deserves the same treatment...)]] with new --target-repository and --target-module options.

... version 0.9.1

Version 0.9.2, tagged on Aug 5, early in the morning, was tormented with the following changes:

(./) ArX support (target only) thanx to Walter Landry

(./) New configuration system in place, even if still mostly untested

... version 0.9.2

Version 0.9.3, tagged on Aug 9, early in the morning, was tattooed with the following changes:

(./) Big internals redesign, needs more testing

(./) New operational tests: darcs2svn and darcs2hg

(./) Darcs backend is more precise in the patch selection

... version 0.9.3

Version 0.9.4, tagged on Aug 13, was heaved by the following changes:

(./) Tla support (source only) thanx to Robin Farine

(./) The operation tests now cover darcs2bzr, darcs2cdv and a reverse one, svn2darcs

... version 0.9.4

Version 0.9.5, tagged on Aug 16, was cured by the following changes:

(./) Lot of little fixes here and there

(./) Optimized the state persistence

(./) Rectified the README

(./) --bootstrap and --update are gone: now tailor detects what's needed checking the state file existence

... version 0.9.5

Version 0.9.6, tagged on Aug 17, learned these new concepts and gained a promotion to beta:

(./) Tiny streams vs giant blobs: now the pending changesets are iterated over loading one by one from the state file. With this change, minus bugs of course, I consider the state file format freezed, that means I'll start using this version in production.

(./) If something cannot be shared, there must be two something: the dual working directory sometime isn't good enough, so now the source and the target repositories may use different directories, and tailor will rsync them as needed. As a bonus, this will happily suck some more megabytes out of your HD :)

(./) It's easier if you call things with their name: some more internal cleanup, I'm almost satisfied now.

(./) Errors may happen, and better know about them: with --verbose you get the "shell" commands, with --debug also their stdout and stderr.

... version 0.9.6

Version 0.9.7, tagged on Aug 19, gained some other knowledge:

(./) Darcs is beautifully strange: deal with possible conflicts replaying an history patch by patch

(./) Two is better than one: a new native backend for Bazaar-NG, thanx to Johan Rydberg.

(./) Flexibility is a virtue: implemented the long awaited changeset transform hooks

... version 0.9.7

Version 0.9.8, tagged on Aug 20, discovered new things:

(./) How to make an use of the predist feature of Darcs: now the tarball contains an HTMLized README.

(./) How simple it is to break working code: fixed brown bag bug in the CVS source backend.

(./) Interactivity bores users: good bye interactive session!

... version 0.9.8

Version 0.9.9, tagged on Aug 25, explored new countries:

(./) Intricated paths may resolve to something linear: monotone source backend, thanks to Riccardo!

(./) There are still bugs out there: keep squashing 'em!

(./) There are persons who actually use software, don't read it: be kind with them, and write some notes.

... version 0.9.9

Version 0.9.10, tagged on Aug 29, acquired new capabilities:

(./) Cogito ergo sum: target backend for Git, thanks to Todd Mokros

(./) Difference matters: bazaar source backend

(./) Enhanced Monotone support

... version 0.9.10

Version 0.9.11, tagged on Aug 31, expanded its knowledge:

(./) The other's tool is faster: new svndump source backend

(./) Without tests, everything sucks: fixes to annoying conditions

... version 0.9.11

Version 0.9.12, tagged on Sep 2, learnt from his own errors:

(./) Rudimentary doesn't mean useless: svndump seems working now

(./) After encodings, time formats are the flakiest idea ever: Mercurial should show better timestamps now

... version 0.9.12

Version 0.9.13, tagged on Sep 5, went backward to improve:

(./) Something shared may have an offset: reintroduced the ability of adding a prefix to the imported tree

(./) Better avoid excessive boring: targets have now a chance of ignore unwanted entries, Darcs backend applies rules in 'boring' file.

(./) Filtering is a risky business: svndump now honours both module and revision

... version 0.9.13

Version 0.9.14, tagged on Sep 12, exposed some new features:

(./) New git backend, thanks to Todd Mokros

(./) New hglib native backend

(./) Various little fixes here and there, in particular to the darcs and CVS backends

(./) Current svndump backend is deprecated, it will be superceded by a version using a better underlying framework

... version 0.9.14

Version 0.9.15, tagged on Sep 13, fixed some serious bugs:

(./) Always use the patch hash to pull the changeset under darcs, otherwise multiple changesets may be slurped at the same time

(./) Automatically setup the local svn repository to accept propset

(./) Operate on the effectively committed revision to set author and timestamp, instead of targetting HEAD

... version 0.9.15

Version 0.9.16, tagged on Sep 21, fixed some minor bugs:

(./) Workaround for a darcs problem dealing with renamed+replaced items on the command line

(./) Support for Mercurial 0.7 renames

(./) Execute pre and post hooks also at bootstrap time

... version 0.9.16

Version 0.9.17, tagged on Oct 3 by a sad lelit:

(./) New source support for Bazaar-NG, thanks to Jelmer Vernooij.

(./) Several bug fixes, in almost all backends

(./) New home for tailor's trac: http://progetti.arstecnica.it/tailor

... version 0.9.17

Version 0.9.18, tagged on Oct 17 by a lone lelit:

(./) The command line based Bazaar-NG is gone, replaced by the bzrlib based one.

(./) Reorganized test suite

(./) Preliminary support for tags under CVS and Darcs, thanks to Aaron Kaplan.

(./) Fixed handling of "rename+replace".

(./) More streamy in particular at bootstrap time.

(./) Bazaar-NG specific optimization and fixes: source backend passes the tests.

... version 0.9.18

Version 0.9.19, tagged on Nov 10 by a crashed lelit:

(./) Incremental xml parsers for svn and darcs

(./) Revamped logging subsystem

(./) Several fixes to various backends

(./) Generalized handling of replaced entries

Recent news

Latest news are available on the trac site.

ConfigParser based configuration

The idea is to use a standard Python script, writing the configuration in its documentation string, eventually followed by functions used to massage in some way the changesets.

#!python
#!/usr/bin/env tailor

"""
[DEFAULT]
verbose = Yes

[project1]
source = svn:projec1repo
target = darcs:project1repo
refill-changelogs = Yes
state-file = project1.state
before-commit = (maybe_skip, refill, p1_remap_authors)
after-commit = checkpoint

[svn:project1repo]
repository = svn://some.server/svn
module = project1
use-propset = Yes

[darcs:project1repo]
repository = ~/darcs/project1
"""

def maybe_skip(context, changeset):
    for e in changeset.entries:
        if not context.darcs.isBoringFile(e):
            return True
    # What a bunch of boring entries! Skip the patch
    return False

def refill(context, changeset):
    changeset.refillChangelog()
    return True

p1_authors_map = {
    'lele': 'Lele Gaifax <lele@example.com>',
    'x123': 'A man ... with a name to come',
}

def p1_remap_authors(context, changeset):
    if p1_authors_map.has_key(changeset.author):
        changeset.author = p1_authors_map[changeset.author]
    return True

def checkpoint(context, changeset):
    if changeset.log.startswith('Release '):
        context.target.tagWithCheckpoint(changeset.log)
    return True