Generate /etc/yggdrasil.conf automatically after install or update

[StudioMaX]

After this change /etc/yggdrasil.conf will be created automatically after install and update. It will work by this scheme:

1. Check if /etc/yggdrasil.conf already exists.
2. If not, then generate a new config via yggdrasil -genconf
3. If this config file was found, then:
   a) Regenerate it via yggdrasil -useconffile /etc/yggdrasil.conf -normaliseconf to a temp file
   b) Compare the new config with the current one
   c) If they are different then save the new config as /etc/yggdrasil.conf.rpmnew (original /etc/yggdrasil.conf will be untouched).

I am not so happy with this method, since in my opinion the default yggdrasil.conf should be packaged inside RPM. And then update it using standard %config(noreplace) RPM's macros. But then there is no easy way to automatically update and put the secret keys in the config after the first launch of Yggdrasil.

[StudioMaX]

@cornfeedhobo could you also check if this will work correctly with your RPM packages?

[cornfeedhobo]

@StudioMaX can do

[rany2]

Please use umask instead of changing the file permissions after the file was created.

For example:

umask 027
echo "This file will have u=rw,g=r,o= permissions initially without needing chmod" > test.txt

instead of

echo "This file will initially have unsafe permissions until chmod is then called" > test.txt
chmod 640 test.txt