i18n/polib.LICENSE

repository: define manifest interfaces

The long march towards declaring interfaces for repository
primitives continues.

This commit essentially defines interfaces based on the following
types:

* manifest.manifestdict -> imanifestdict
* manifest.manifestlog -> imanifestlog
* manifest.memmanifestctx -> imanifestrevisionwritable
* manifest.manifestctx -> imanifestrevisionstored
* manifest.memtreemanifestctx -> imanifestrevisionwritable
* manifest.treemanifestctx -> imanifestrevisionstored
* util.dirs -> idirs

The interfaces are thoroughly documented. Their documentation is
now better than the documentation in manifest.py in many cases.

With the exception of util.dirs, classes have been annotated with
their interfaces. (I didn't feel like util.dirs needed the
proper interface treatment.)

Tests have been added demonstrating that all classes and instances
conform to their interfaces.

This work was much easier than filelogs. That's because Durham
did an excellent job formalizing the manifest API a while back.

There are still some minor kludges with the interfaces that should
probably be addressed. But the primary goal with interface
declarations is getting something established. Once we have an
interface, we can modify it later easily enough.

Differential Revision: https://phab.mercurial-scm.org/D3869

copyright (c) 2006-2010 David JEAN LOUIS

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.