Bug: --debug-javascript broken on Mac

Yves000 · 05-22-2013, 12:43 PM

(deleted, reported as https://bugs.launchpad.net/calibre/+bug/1183014)

Hi,

In Calibre 0.9.31 for Mac (10.6.1 but it shouldn't matter), from the Terminal, running either "calibre.app/Contents/MacOS/ebook-viewer --debug-javascript foo.epub" or simply "ebook-viewer --debug-javascript foo.epub" after having clicked the button "Install command line tools" in Calibre's Preferences/Miscrellaneous fails with error "IOError: [Errno 2] No such file or directory: u'/Applications/calibre.app/Contents/Resources/Python/site-packages/calibre/ebooks/oeb/display/utils.coffee'". Directory "/Applications/calibre.app/Contents/Resources/Python/site-packages/calibre/ebooks/oeb/display" exists, but contains only __init__.pyo, test-cfi/run.pyo and webview.pyo.

I've downloaded the current source code with "bzr branch lp:calibre" and copied the files from src/calibre/ebooks/oeb/display to Python/site-packages/calibre/ebooks/oeb/display. No more error, and console.debug in epub's JavaScript is shown in the Terminal.

Thanks,

Yves

kovidgoyal · 05-22-2013, 01:48 PM

IIRC --debug-javascript only works if you are running from source. See the setting up a development environment section of the user manual. I should probably add that to the help text for that option.

kovidgoyal · 05-22-2013, 01:59 PM

On second thoughts, I decided to just fix it so it doesn't try to compile the coffeescript when running from a binary build. http://bazaar.launchpad.net/~kovid/c...revision/15067

Yves000 · 05-22-2013, 02:23 PM

Thanks for your fast reply! I don't think the dev environment section mentions debugging epub files themselves; it looks more like the first step for Calibre development. Anyway, a remark in what's displayed by "ebook-viewer --help" would be very useful.

Edit: this is a reply to what you posted at 05:48

kovidgoyal · 05-22-2013, 02:57 PM

--debug-javascript isn't intended for debugging epub files, its for debugging the javascript code used in the viewer itself. Of course, you could use it to debug javascript in an epub file as well

Yves000 · 05-24-2013, 02:20 AM

Ok, I understand. I'm still a beginner in the field, so I'm trying to find the best tools to understand epub files. For debugging JavaScript in epub (I mean what's specific to ebooks and differs from plain HTML5, such as coordinates), I haven't found anything better than ebook-viewer.

Thanks,

Yves

05-22-2013, 12:43 PM	#1
Yves000 Junior Member Posts: 3 Karma: 10 Join Date: May 2013 Device: iPad 1	Bug: --debug-javascript broken on Mac (deleted, reported as https://bugs.launchpad.net/calibre/+bug/1183014) Hi, In Calibre 0.9.31 for Mac (10.6.1 but it shouldn't matter), from the Terminal, running either "calibre.app/Contents/MacOS/ebook-viewer --debug-javascript foo.epub" or simply "ebook-viewer --debug-javascript foo.epub" after having clicked the button "Install command line tools" in Calibre's Preferences/Miscrellaneous fails with error "IOError: [Errno 2] No such file or directory: u'/Applications/calibre.app/Contents/Resources/Python/site-packages/calibre/ebooks/oeb/display/utils.coffee'". Directory "/Applications/calibre.app/Contents/Resources/Python/site-packages/calibre/ebooks/oeb/display" exists, but contains only __init__.pyo, test-cfi/run.pyo and webview.pyo. I've downloaded the current source code with "bzr branch lp:calibre" and copied the files from src/calibre/ebooks/oeb/display to Python/site-packages/calibre/ebooks/oeb/display. No more error, and console.debug in epub's JavaScript is shown in the Terminal. Thanks, Yves Last edited by Yves000; 05-22-2013 at 01:54 PM.

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05-22-2013, 01:48 PM	#2
kovidgoyal creator of calibre Posts: 45,308 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	IIRC --debug-javascript only works if you are running from source. See the setting up a development environment section of the user manual. I should probably add that to the help text for that option.

05-22-2013, 01:59 PM	#3
kovidgoyal creator of calibre Posts: 45,308 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	On second thoughts, I decided to just fix it so it doesn't try to compile the coffeescript when running from a binary build. http://bazaar.launchpad.net/~kovid/c...revision/15067

05-22-2013, 02:23 PM	#4
Yves000 Junior Member Posts: 3 Karma: 10 Join Date: May 2013 Device: iPad 1	Thanks for your fast reply! I don't think the dev environment section mentions debugging epub files themselves; it looks more like the first step for Calibre development. Anyway, a remark in what's displayed by "ebook-viewer --help" would be very useful. Edit: this is a reply to what you posted at 05:48

05-22-2013, 02:57 PM	#5
kovidgoyal creator of calibre Posts: 45,308 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	--debug-javascript isn't intended for debugging epub files, its for debugging the javascript code used in the viewer itself. Of course, you could use it to debug javascript in an epub file as well

05-24-2013, 02:20 AM	#6
Yves000 Junior Member Posts: 3 Karma: 10 Join Date: May 2013 Device: iPad 1	Ok, I understand. I'm still a beginner in the field, so I'm trying to find the best tools to understand epub files. For debugging JavaScript in epub (I mean what's specific to ebooks and differs from plain HTML5, such as coordinates), I haven't found anything better than ebook-viewer. Thanks, Yves

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