Mercurial > hgsubversion
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layouts: fix crash when importing hgsubversion itself (issue #402)
Mercurial extensions are a bit weird: they aren't normally in
sys.path, so you can't assume that "import hgsubversion" works.
Luckily, Mercurial sneaks a little treat into sys.modules so that
"import hgext_hgsubversion" does work. In fact, to get things working
*as a Mercurial extension*, all that's needed is that trivial change
to two import lines, in layouts/detect.py and layouts/standard.py.
Unfortunately, hgsubversion is also imported as a Python module, in
its own test suite. In that context, there is no "hgext_" trick --
unless we do it in ourselves, which I've done in TestBase.setUp().
That would work fine ... except that test_util imports from
hgsubversion, which ends up importing hgsubversion.layouts.{detect,standard},
which want the "hgext_" trick to work. But it hasn't been done yet
when we're still importing; it doesn't happen until setUp() runs.
So make those two imports happen late, in the functions that need them.
Incidentally, this is only necessary to support Mercurial <= 2.7.
Mercurial got a bit smarter in 2.8:
http://selenic.com/repo/hg/rev/621a26eb3a99
| author | Greg Ward <greg@gerg.ca> |
|---|---|
| date | Thu, 02 Jan 2014 21:53:39 -0500 |
| parents | 3b60f223893a |
| children |
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SVN-fs-dump-format-version: 2 UUID: a632509c-657a-43d2-ae0b-85387476b20e Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-11-11T19:00:25.260082Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 12 init project K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:25.322759Z PROPS-END Node-path: project1 Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: project2 Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Revision-number: 2 Prop-content-length: 106 Content-length: 106 K 7 svn:log V 5 add a K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:26.173269Z PROPS-END Node-path: project1/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Content-length: 12 PROPS-END a Revision-number: 3 Prop-content-length: 117 Content-length: 117 K 7 svn:log V 15 rename project1 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:29.152593Z PROPS-END Node-path: project2/trunk Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: project1 Prop-content-length: 34 Content-length: 34 K 13 svn:mergeinfo V 0 PROPS-END Node-path: project1 Node-action: delete Revision-number: 4 Prop-content-length: 106 Content-length: 106 K 7 svn:log V 5 add b K 10 svn:author V 7 pmezard K 8 svn:date V 27 2008-11-11T19:00:30.178261Z PROPS-END Node-path: project2/trunk/b Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 3b5d5c3712955042212316173ccf37be Content-length: 12 PROPS-END b