Help with Container rename & replace_links methods

jackie_w · 10-21-2015, 06:18 PM

I'm trying to figure out how to use the above. Please can you give some guidance how the 2 methods should be used together e.g.

If I have container of an epub and I want to change the name of

oldname = 'text/chap1.html' --> newname = 'text/chap1b.html'

oldname contains links to other files and is also linked to by other files.

I think I need to start with

container.rename(oldname, newname)

and I think I need to use a loop round (opf + ncx + spine items) with some combination of

repl = LinkRebaser(container, oldname, newname)
container.replace_links(name, repl)
container.dirty(name)

to correct any links related to oldname ... but as this isn't working I'm obviously misunderstanding somewhere. Please can you put me on track?

By 'not working' I mean, the file is renamed but I'm failing to get the opf file to update.

Followup question ... if the file to be renamed was an image, rather than html, how would the process differ?

kovidgoyal · 10-21-2015, 11:00 PM

from calibre.ebooks.oeb.polish.replace import rename_files

rename_files(container, {oldname1:newname1, oldname2:newname2})

That's all you need to do for any kind of file.

Just be careful not to rename files that must not be renamed, such as files in the META-INF directory.

jackie_w · 10-22-2015, 08:00 AM

I should have known I was over-complicating it!

I was obviously looking in the wrong Class for a suitable method.

10-21-2015, 06:18 PM	#1
jackie_w Grand Sorcerer Posts: 6,212 Karma: 16534894 Join Date: Sep 2009 Location: UK Device: Kobo: KA1, ClaraHD, Forma, Libra2, Clara2E. PocketBook: TouchHD3	Help with Container rename & replace_links methods I'm trying to figure out how to use the above. Please can you give some guidance how the 2 methods should be used together e.g. If I have container of an epub and I want to change the name of oldname = 'text/chap1.html' --> newname = 'text/chap1b.html' oldname contains links to other files and is also linked to by other files. I think I need to start with container.rename(oldname, newname) and I think I need to use a loop round (opf + ncx + spine items) with some combination of repl = LinkRebaser(container, oldname, newname) container.replace_links(name, repl) container.dirty(name) to correct any links related to oldname ... but as this isn't working I'm obviously misunderstanding somewhere. Please can you put me on track? By 'not working' I mean, the file is renamed but I'm failing to get the opf file to update. Followup question ... if the file to be renamed was an image, rather than html, how would the process differ? Last edited by jackie_w; 10-21-2015 at 06:23 PM.

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10-21-2015, 11:00 PM	#2
kovidgoyal creator of calibre Posts: 43,856 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	from calibre.ebooks.oeb.polish.replace import rename_files rename_files(container, {oldname1:newname1, oldname2:newname2}) That's all you need to do for any kind of file. Just be careful not to rename files that must not be renamed, such as files in the META-INF directory.

10-22-2015, 08:00 AM	#3
jackie_w Grand Sorcerer Posts: 6,212 Karma: 16534894 Join Date: Sep 2009 Location: UK Device: Kobo: KA1, ClaraHD, Forma, Libra2, Clara2E. PocketBook: TouchHD3	I should have known I was over-complicating it! I was obviously looking in the wrong Class for a suitable method.