Since people can generate their own image with debootstrap, and
this wouldn't create a file /var/lib/locales/supported.d/local,
better check if it exist and work if it doesn't.
Fix#656
The previous version of this code was supporting only locales using the
format "<language>_<territory>.<charset>". But all the locales that
doesn't have this format were not installable (such as "fr_FR" or
"fr_FR@euro").
Also, if an invalid locales was provided, the module kept sending a
"changed" status.
Now :
* if the user provides an invalid locales, the module failed. Locales
are verified using /etc/locale.gen or /usr/share/i18n/SUPPORTED if
Ubuntu
* Every types of valid locales are now supported.
* The locale module was not working on Archlinux, as there's no space
between the "#" and the locale. This is now supported. Credits goes
to danderson189, this is his code.
This module was tested on debian jessie, ubuntu 14 LTS and last
Archlinux.
The function normalizes checks for UTF-8, but the same issue exists for
other locales as well. This fix adds normalization for EUC-JP, a Japanese
locale.
Konstantin Malov
Brian Coca
Michael Scherer
Mathias Merscher
Matt Martz
Toshio Kuratomi
Richard Gray
Sterfield
Hiroshi Umehara
Baptiste Mispelon
Michael DeHaan