calibredb exit codes?

[mcqueary]

Hi folks!

I'm writing a shell script for some custom imports and it seems like calibredb always returns 0 (success) when I (e.g.) try to add a file that doesn't exist. Is this known behavior? Or does it only return >0 in specific situations?

example:

$ calibredb add /path/to/nonexistent/file.epub
/path/to/nonexistent/file.epub not found
Backing up metadata
Notifying calibre of the change
$ echo $?
0

Thanks!

[kovidgoyal]

adding will raise non zero exit codes, but not for not found files, that's because the adder is recursive and just ignores missing/invalid files. If there is an error during an actual add, the exit code will be non zero.