"Save as -> XCF" fails if SVG file has one or more empty layers

[bugmenot]

To reproduce this bug simply create new empty layer and try to export to Gimp XCF file using "File -> Save As -> Gimp XCF with preserved layers" menu item. Exporter will return the following error:

Traceback (most recent call last):
  File "/usr/share/inkscape/extensions/gimp_xcf.py", line 173, in <module>
    e.affect()
  File "/usr/share/inkscape/extensions/inkex.py", line 172, in affect
    self.effect()
  File "/usr/share/inkscape/extensions/gimp_xcf.py", line 167, in effect
    x = open(xcf, 'r')
IOError: [Errno 2] No such file or directory: '/tmp/tmp6AtbtL/ink_ext_XXXXXX.svg9E.xcf'

[Guillermo Espertino (Gez) (gespertino-gmail)]

I'm getting this in SVN. I have no empty layers.
This is, in my case, a regression. The same file saves as XCF without problems in 0.46
It worked fine in SVN a couple of months ago.
The resulting file is 0 bytes

Ubuntu 8.10 - 64 bit.

--
No matching node for expression: sodipodi:namedview/inkscape:grid[@type='xygrid' and (not(@units) or @units='px')]
Traceback (most recent call last):
  File "/usr/share/inkscape-devel/extensions/gimp_xcf.py", line 173, in <module>
    e.affect()
  File "/usr/share/inkscape-devel/extensions/inkex.py", line 175, in affect
    self.effect()
  File "/usr/share/inkscape-devel/extensions/gimp_xcf.py", line 167, in effect
    x = open(xcf, 'r')
IOError: [Errno 2] No such file or directory: '/tmp/tmpS4_X6n/ink_ext_XXXXXX.svgFW.xcf'
--

It's not the same bug (it has nothing to do with empty layers) but is pretty similar and it might be related.
Let me know it it isn't, so I open a new bug report.

[Guillermo Espertino (Gez) (gespertino-gmail)]

As for Rev. 21019 this seems to be fixed. I tried all the described alternatives (empty layers, guides export on/off, grid export on/off). Everything worked fine.
I'm marking this as fixed. Please re-open if you still have the problem.

Tested on Ubuntu 8.10 - 64 bits / It didn't work some revisions ago.

[Brian (kravitz-brian)]

I'm getting this error on Ubuntu 9.10 using Inkscape 0.47pre4 r22446. I'm unable to save as XCF, and I have no empty layers.

[Brian (kravitz-brian)]

I'm using the 32-bit version of Ubuntu 9.10

[su_v (suv-lp)]

@Brian - I just filed a new report about this: bug #484016 “Export to GIMP XCF (*.xcf) fails with option '--export-area-canvas'”:
<https://bugs.launchpad.net/inkscape/+bug/484016>

AFAICS the export script fails because it is using a command line option for Inkscape that has been renamed. You can try and change it yourself in the 'gimp_xcf.py' on line 89:
 s/export-area-canvas/export-area-page/

[jazzynico (jazzynico)]

Issue reproduced on Ubuntu 10.04, Inkscape 0.47.

Empty layers are not exported by Inkscape:

# inkscape -i emptylayer -j --export-area-page -e emptylayer.png testfile.svg
Returns:
** (inkscape:1760): WARNING **: Unable to determine a valid bounding box. Nothing exported.

and thus when script-fu tries to import them in an XCF file, it fails.

[jazzynico (jazzynico)]

Fix committed in the trunk, revision 9699.

The script now test if a layer is empty, and skip it if it's the case.

The file is available on launchpad (http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/annotate/head%3A/share/extensions/gimp_xcf.py). To test the fix with 0.47 or 0.48, copy the downloaded file to the Inkscape share/extension folder.

[jazzynico (jazzynico)]

Fix backported to 0.48.x branch (revision 9660).