tests: conditionalize tests based on presence of revlogs for files ~85 tests don't like our non-revlog file store for various reasons. This commit introduces hghave functionality for declaring and querying repository features. By default, we assume repositories have revlog-based file storage. But if the HGREPOFEATURES environment variable is set, we can override the default set of repository features. If you run the test harness with our simplestorerepo extension and an environment variable set to the proper value, you can override the hghave defaults to agree with simplestorerepo's version of reality. Various tests have been modified so behavior dependent on revlog-based file storage is marked as such. This fixes a handful of test failures with our custom file storage extension. But dozens remain. The point of this commit is to demonstrate how tests will need to be modified to account for custom storage implementations. TBH, I'm not convinced hghave is the proper layer for repository feature detection. I /think/ we'll eventually want something in run-tests.py itself. But that would require inventing a new primitive in the test harness. This is all very alpha at the moment. So I think hghave is an acceptable place to hang this feature detection. I think the right time to be thinking about integrating this into run-tests.py is *after* we have a stable alternate storage implementation in core. For now, let's try to make progress towards the idea of an alternate storage backend. Differential Revision: https://phab.mercurial-scm.org/D3030

     1

copyright (c) 2006-2010 David JEAN LOUIS

     2

     3

Permission is hereby granted, free of charge, to any person obtaining a copy

     4

of this software and associated documentation files (the "Software"), to deal

     5

in the Software without restriction, including without limitation the rights

     6

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

     7

copies of the Software, and to permit persons to whom the Software is

     8

furnished to do so, subject to the following conditions:

     9

    10

The above copyright notice and this permission notice shall be included in all

    11

copies or substantial portions of the Software.

    12

    13

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

    14

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    15

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

    16

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

    17

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

    18

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

    19

SOFTWARE.