[pacman-dev] pkgbuild parser in python

[Sebastian Nowicki]

On Oct 1, 2009, at 4:43 PM, Xavier wrote:

> On Thu, Oct 1, 2009 at 4:22 PM, Sebastian Nowicki <sebnow at gmail.com>  
> 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
>>
>>
>
> So this is both a pkgbuild and pkginfo parser ?

Correct. Two classes for the two formats.

> For the AUR, you just need pkgbuild parser, right ? And this is much
> more complex than pkginfo parser.
> Actually that's why I hate pkgbuild :)

Since community is no longer in the AUR, yes. At the time though, I  
was also targeting tarball packages since I wanted to parse the  
packages in community. Unfortunately tarball packages are much easier  
to parse than PKGBUILDs :(.

> There was another pkgbuild parser in python , written by stonecrest,
> and used there :
> http://projects.archlinux.org/?p=dbscripts.git;a=blob;f=cron-jobs/check_archlinux.py;h=cb433513ce53a515a5a6959e6da4da4a8bf0012f;hb=f404689fc11bbeace243779305ede5b7d7270ae8

Thanks, might be useful. I'll look into it when I have more time.