Mercurial > hg
annotate mercurial/policy.py @ 29925:1619efcde9a4
manifest: make one use of _mancache avoid manifestctxs
In a future patch we will change manifestctx and treemanifestctx to no longer
derive from manifestdict and treemanifest, respectively. This means that
consumers of the _mancache will now need to be aware of the different between
the two, until we get rid of the manifest entirely and the _mancache becomes
only filled with ctxs.
This fixes one case of it that can be fixed by using the other cache. Future
patches will address the others uses using the upcoming manifestctx.read()
function.
author | Durham Goode <durham@fb.com> |
---|---|
date | Mon, 12 Sep 2016 14:29:09 -0700 |
parents | b4d117cee636 |
children | 62939e0148f1 |
rev | line source |
---|---|
29266
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
1 # policy.py - module policy logic for Mercurial. |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
2 # |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
3 # Copyright 2015 Gregory Szorc <gregory.szorc@gmail.com> |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
4 # |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
5 # This software may be used and distributed according to the terms of the |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
6 # GNU General Public License version 2 or any later version. |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
7 |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
8 from __future__ import absolute_import |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
9 |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
10 import os |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
11 import sys |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
12 |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
13 # Rules for how modules can be loaded. Values are: |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
14 # |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
15 # c - require C extensions |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
16 # allow - allow pure Python implementation when C loading fails |
29490
b4d117cee636
policy: add cffi policy for PyPy
Maciej Fijalkowski <fijall@gmail.com>
parents:
29266
diff
changeset
|
17 # cffi - required cffi versions (implemented within pure module) |
b4d117cee636
policy: add cffi policy for PyPy
Maciej Fijalkowski <fijall@gmail.com>
parents:
29266
diff
changeset
|
18 # cffi-allow - allow pure Python implementation if cffi version is missing |
29266
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
19 # py - only load pure Python modules |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
20 # |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
21 # By default, require the C extensions for performance reasons. |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
22 policy = 'c' |
29490
b4d117cee636
policy: add cffi policy for PyPy
Maciej Fijalkowski <fijall@gmail.com>
parents:
29266
diff
changeset
|
23 policynoc = ('cffi', 'cffi-allow', 'py') |
b4d117cee636
policy: add cffi policy for PyPy
Maciej Fijalkowski <fijall@gmail.com>
parents:
29266
diff
changeset
|
24 policynocffi = ('c', 'py') |
b4d117cee636
policy: add cffi policy for PyPy
Maciej Fijalkowski <fijall@gmail.com>
parents:
29266
diff
changeset
|
25 |
29266
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
26 try: |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
27 from . import __modulepolicy__ |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
28 policy = __modulepolicy__.modulepolicy |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
29 except ImportError: |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
30 pass |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
31 |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
32 # PyPy doesn't load C extensions. |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
33 # |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
34 # The canonical way to do this is to test platform.python_implementation(). |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
35 # But we don't import platform and don't bloat for it here. |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
36 if '__pypy__' in sys.builtin_module_names: |
29490
b4d117cee636
policy: add cffi policy for PyPy
Maciej Fijalkowski <fijall@gmail.com>
parents:
29266
diff
changeset
|
37 policy = 'cffi' |
29266
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
38 |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
39 # Our C extensions aren't yet compatible with Python 3. So use pure Python |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
40 # on Python 3 for now. |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
41 if sys.version_info[0] >= 3: |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
42 policy = 'py' |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
43 |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
44 # Environment variable can always force settings. |
b3a677c82a35
debuginstall: expose modulepolicy
timeless <timeless@mozdev.org>
parents:
diff
changeset
|
45 policy = os.environ.get('HGMODULEPOLICY', policy) |