[Piuparts-devel] Bug#595119: piuparts: modular way to add new tests?

[Scott Schaefer]

 From reading your report and your patch, I believe you can achieve this 
with the "custom scripting" interface 
(/usr/share/doc/piuparts/README.html or 
http://piuparts.debian.org/doc/README.html#_custom_scripts_with_piuparts).  
While perhaps not ideal, this interface provides a 'modular way to add 
new tests'.

In order to verify I am understanding ...

You seemingly need a way to determine if <pattern> is anywhere in the 
"list of" Depends:; thus, your patch causes this to be built even in 
absence of --warn-on-others.  You then want to be able to test (ideally, 
via regexp ?) for presence of >=1 patterns in this set, and 
conditionally run your additional test(s) based on presence/absence of 
these patterns.

While I have not attempted to produce set of shell scripts that provides 
this functionality, I believe there is no fundamental constraint in the 
interface that would preclude doing so.   Am I misunderstanding; i.e. is 
there some way the current interface does fails to address your needs ?

Finally, note your patch appears to unconditionally install and purge 
emacs if you run the test; this is likely not correct, since emacs may 
have either already been installed (dist-upgrade), or been installed by 
install_packages, so that this may then lead to subsequent error(s) 
during purge.