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 | cf6fe8457570 |
| children |
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SVN-fs-dump-format-version: 2 UUID: ab14e60b-7e4b-473f-980a-26ace458a00f Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-12-12T00:18:13.309956Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 14 branches trunk K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:14.083854Z PROPS-END Node-path: branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Revision-number: 2 Prop-content-length: 105 Content-length: 105 K 7 svn:log V 6 Files. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:16.270290Z PROPS-END Node-path: trunk/alpha Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 9f9f90dbe3e5ee1218c86b8839db1995 Content-length: 16 PROPS-END alpha Node-path: trunk/beta Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 5 Text-content-md5: f0cf2a92516045024a0c99147b28f05b Content-length: 15 PROPS-END beta Node-path: trunk/gamma Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 303febb9068384eca46b5b6516843b35 Content-length: 16 PROPS-END gamma Revision-number: 3 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 13 make a branch K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:19.069446Z PROPS-END Node-path: branches/dev_branch Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk Revision-number: 4 Prop-content-length: 125 Content-length: 125 K 7 svn:log V 25 Add a file on the branch. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:21.088611Z PROPS-END Node-path: branches/dev_branch/epsilon Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 8 Text-content-md5: c40719840583e3f3e6744c02828d7cd9 Content-length: 18 PROPS-END epsilon Revision-number: 5 Prop-content-length: 124 Content-length: 124 K 7 svn:log V 24 Commit bogus propchange. K 10 svn:author V 5 durin K 8 svn:date V 27 2008-12-12T00:18:23.078263Z PROPS-END Node-path: branches/dev_branch Node-kind: dir Node-action: change Prop-content-length: 37 Content-length: 37 K 10 svn:ignore V 6 delta PROPS-END