Arrange into folders not working properly

DrChiper · 02-28-2014, 11:10 AM

Using calibre 1.26 I noticed that my e-reader did not show a picture. Via the "Check Book" function of the Book Editor, I discovered that the picture was unknown because it was located in a directory "/images/", instead of the expected "/Images/". I tried to solve that via the "Arrange into folders" function which seemed to work as thereafter the "Check Book" function did not reported any problems. So I saved the e-pub, but noticed the picture was still not showing. Opening the epub again with the Book Editor I discovered that the folder was still named "/images", while "Check Book" now reported again that the picture was unknown.

Apparently, the "Arrange into books" function does not actually rename the directory, but "somehow reports success to "Check Book" so the latter refrains from reporting errors until you save/close/re-open the epub.

kovidgoyal · 02-28-2014, 11:40 AM

You are on a case insensitive filesystem. Trying to change the case of folder names will break on that, since the filesystem will report that the file exists regardless of the case. Someday I have to get around to implementing fixes for that, but in the meantime dont try to change the case of folder names if you are on a case insensitive filesystem.

DrChiper · 02-28-2014, 12:45 PM

Ok, I will keep that in mind. Luckily, it does not happen that often so I can live with it for the moment. Thanks!

signum · 02-28-2014, 01:27 PM

Do it in two steps. First, change the name to something totally unrelated. "foo", say. Then change it to the properly capitalized name. "images" -> "foo". Then "foo" -> "Images".

kovidgoyal · 02-28-2014, 09:17 PM

Even that wont work. What will happen in that when calibre asks the OS to rename foo/image to Images/img, if the images folder already exists, the OS will rename it to images/image instead of Images/image. The only way to make it work is for calibre to check the actual path created by the os for every rename operation and then either:

1) Rename the folders in the path explicitly, individually, and then change the links to all files in the renamed folders

2) Alternately detect that there is a case mismatch on renaming the file and change the links for just that file to use the existing filesystem case.

signum · 03-01-2014, 01:10 PM

Ah, I see. I wasn't considering the entire problem, just the one of changing the case a single folder or file.

02-28-2014, 11:10 AM	#1
DrChiper Bookish Posts: 1,017 Karma: 2003162 Join Date: Jun 2011 Device: PC, t1, t2, t3, Clara BW, Clara HD, Libra 2, Libra Color, Nxtpaper 11	Arrange into folders not working properly Using calibre 1.26 I noticed that my e-reader did not show a picture. Via the "Check Book" function of the Book Editor, I discovered that the picture was unknown because it was located in a directory "/images/", instead of the expected "/Images/". I tried to solve that via the "Arrange into folders" function which seemed to work as thereafter the "Check Book" function did not reported any problems. So I saved the e-pub, but noticed the picture was still not showing. Opening the epub again with the Book Editor I discovered that the folder was still named "/images", while "Check Book" now reported again that the picture was unknown. Apparently, the "Arrange into books" function does not actually rename the directory, but "somehow reports success to "Check Book" so the latter refrains from reporting errors until you save/close/re-open the epub.

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02-28-2014, 11:40 AM	#2
kovidgoyal creator of calibre Posts: 45,331 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You are on a case insensitive filesystem. Trying to change the case of folder names will break on that, since the filesystem will report that the file exists regardless of the case. Someday I have to get around to implementing fixes for that, but in the meantime dont try to change the case of folder names if you are on a case insensitive filesystem.

02-28-2014, 12:45 PM	#3
DrChiper Bookish Posts: 1,017 Karma: 2003162 Join Date: Jun 2011 Device: PC, t1, t2, t3, Clara BW, Clara HD, Libra 2, Libra Color, Nxtpaper 11	Ok, I will keep that in mind. Luckily, it does not happen that often so I can live with it for the moment. Thanks!

02-28-2014, 01:27 PM	#4
signum Zealot Posts: 119 Karma: 64428 Join Date: Aug 2011 Device: none	Do it in two steps. First, change the name to something totally unrelated. "foo", say. Then change it to the properly capitalized name. "images" -> "foo". Then "foo" -> "Images".

02-28-2014, 09:17 PM	#5
kovidgoyal creator of calibre Posts: 45,331 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Even that wont work. What will happen in that when calibre asks the OS to rename foo/image to Images/img, if the images folder already exists, the OS will rename it to images/image instead of Images/image. The only way to make it work is for calibre to check the actual path created by the os for every rename operation and then either: 1) Rename the folders in the path explicitly, individually, and then change the links to all files in the renamed folders 2) Alternately detect that there is a case mismatch on renaming the file and change the links for just that file to use the existing filesystem case.

03-01-2014, 01:10 PM	#6
signum Zealot Posts: 119 Karma: 64428 Join Date: Aug 2011 Device: none	Ah, I see. I wasn't considering the entire problem, just the one of changing the case a single folder or file.

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