[pacman-dev] [RFC] Package parser in python

[Allan McRae]

Sebastian Nowicki wrote:
>
> On Oct 1, 2009, at 2:52 PM, Allan McRae wrote:
>
>> Hi,
>>
>> This is one part of the makepkg test suite I am working on.   It is 
>> fairly a simple class that takes a pacman package filename and does 
>> some parsing.  Currently that involves getting the file list and the 
>> info from the .PKGINFO file.
>>
>> I am still fairly new to python so I am looking for comments on how 
>> this could be improved.
>> One idea I have had is to not initialize all the fields in the 
>> pkginfo dict and add a test if an array exists before appending.  It 
>> would make the code tidier but that would mean the need to test if 
>> the field exists when comparing it later.
>
> I didn't really look at the script, but I made a similar parser [1] 
> earlier, initially for AUR2 purposes. Looking over it, it seems I 
> don't include the file list during parsing, but that can probably be 
> easily added in. Perhaps it can be expanded upon, instead of creating 
> a new one. If not it should at least help.
>
> [1] http://github.com/sebnow/parched/blob/master/parched.py

Ah....   I had seen that before but I thought it only parsed PKGBUILDs 
for some reason.  I have been using that for some ideas for my PKGBUILD 
parser but it needed a big overhaul for package splitting. 

You script has reminded of some things (I should use a tuple instead of 
a list for the "arrays" variable) and I like the idea of mapping names 
to their PKGBUILD equivalents.

Allan