[Yum] Generate a List of RPMS ( formatting corrected )

[Jitendra Nair]

seth vidal wrote:
> On Fri, 2006-09-08 at 09:50 +0530, Jitendra Nair wrote:
>   
>> Hello All ,
>>
>> Sorry the previous mail lost the formatting . Resending it again .
>>
>> Question :  Given a set of required capabilities, come up with a list of 
>> RPM's  with all the dependencies
>>                 resolved .  The way I am doing it is , PsuedoCode follows:
>>              
>>                   Run setup  code.
>>                   for cap in capabilities:
>>                         packages.append ( yum.YumBase.returnPackageByDep 
>> (cap ) )
>>                   for po in packages :
>>                          yum.tsInfo.addInstall (po)
>>                   yum.buildTransaction()
>>                   mems = yum.tsInfo.getMembers()
>>                   for mem in  mems:
>>                       From mem.po.returnPackageTuple()  generate the rpm 
>> file name.
>>                   
>>
>>                   Am i doing the correct way , if NOT  what would be the 
>> correct way to do it.
>>                   Thanks a Lot
>>     
>
> what are these "capabilities" you're parsing from and why would you want
> to list the package names?
>
> -sv
>
>   

I will try and explain it Again

capability  ==  depstring  as  in   "yum install depstring1 depstring2".
   
Given  a set of depstring's  i need to know the package that provides
each depstring and the other packages this package is dependent on. 
the  way i am doing it till now was using 'pexpect' and run the command
"yum install depstring1 depstring2 depstring3 ..."  and the capture stdout
and parse the output and generate the rpms list.Why i am doing this
because the build team needs the list for some reason.


Now need to do it using the yum api.
So i will write the psuedocode  again :

deplist = [ depstring1 , depstring2 , ...]

for depstring in deplist:
    packages.append ( yum.YumBase.returnPackageByDep ( depstring ) )

for po in packages :
     yum.tsInfo.addInstall (po)
     yum.buildTransaction()
     mems = yum.tsInfo.getMembers()
     for mem in  mems:
         pkgtuple = mem.po.returnPackageTuple()
     #From 'pkgtuple' generate filename
     #save filename.       

Thank you s.v for the reply .

regards
Jitendra Nair
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