[eschwartz]

I know the answer to this one!

Originally Posted by eschwartz

And Kovid fixed that. See here: Official calibre PPA? where we discussed updating via a script using that check.

This thread also has a nice elegant way of checking if there is an update available -- Kovid helped us thrash it out.

Here it is:

#!/bin/bash

calibre-debug -c "import urllib as u; from calibre.constants import numeric_version; raise SystemExit(int(numeric_version  < (tuple(map(int, u.urlopen('http://calibre-ebook.com/downloads/latest_version').read().split('.'))))))"

UP_TO_DATE=$?

if [ $UP_TO_DATE = 0 ]; then
        echo "Calibre is up-to-date"
else
        killall calibre calibre-server
        sudo python -c "import sys; py3 = sys.version_info[0] > 2; u = __import__('urllib.request' if py3 else 'urllib', fromlist=1); exec(u.urlopen('http://status.calibre-ebook.com/linux_installer').read()); main(install_dir='/opt')"
fi

Originally Posted by Geremia

Wow, thanks for that, but I get this error:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "<string>", line 356, in main
  File "<string>", line 192, in prints
TypeError: encode() argument 1 must be string, not None