Fix: Path to exceptions now relative to scripts

[simson-sillage]

So that the repository can be placed elsewhere than at ~

[bmwiedemann]

There are more exception files used in rebuild script... and maybe we could make it a directory, so that we use $somepath/exceptions/neardate to make the whole checkout less messy

[simson-sillage]

I added a exceptions/ subdirectory and also adjusted the paths in rebuild. Do you like it?

[bmwiedemann]

looks nice. There is one edge case when calling via bash and $PATH

> bash -x rbk
+++ pwd
++ basename /home/bernhard/code/osc/t/openSUSE:Factory/python-sure
+ pkg=python-sure
+ years=15
++ dirname rbk
+ grep -q '^python-sure$' ./exceptions/neardate
grep: ./exceptions/neardate: No such file or directory

$BASH_SOURCE instead of $0 seems to work, but maybe there is another way.
Or we just ignore it and merge as is.

[jdsn]

@bmwiedemann
Please elaborate on the issue. This is not an issue for us an our shells :)

[simson-sillage]

@bmwiedemann Nevermind I got it reproduced. But $BASH_SOURCE is not unix shell compatible, so it wont work on your Debian system with #!/bin/sh shebang. Edit: I see that you use #!/bin/bash anyway.

[simson-sillage]

@bmwiedemann I changed all occurrences to $BASH_SOURCE.