master_sites - avoiding redirects (was Re: [98933] trunk/dports/multimedia)

[Ryan Schmidt]

On Oct 21, 2012, at 08:47, Craig Treleaven wrote:

> At 12:22 AM +1100 10/22/12, Joshua Root wrote:
>> On 2012-10-22 00:12 , Craig Treleaven wrote:
>>> Hi Ryan:
>>> 
>>> Thanks for all the improvements to the port.  For my education, I've
>>> seen the message quite a few times saying: "* rewrote master_sites to
>>> avoid HTTP redirects".  I see you used
>>> 
>>> 'master_sites       sourceforge:project/mediainfo/binary/mediainfo/${version}'
>>> 
>>> How does one determine this?
>> 
>> One easy way is to run:
>> 
>> curl -IL URL
>> 
>> which will show you if and where the existing URL is redirected.
> 
> OK, I think I've got it.  I started with someone else's portfile in this case where the 'master_sites        sourceforge' produced a working download.  Homepage is at http://mediainfo.sourceforge.net.
> 
> The first time I ran 'port fetch', the log showed:
> 
> DEBUG: Executing org.macports.fetch (mediainfo)
> --->  MediaInfo_CLI_0.7.60_GNU_FromSource.tar.bz2 doesn't seem to exist in /opt/local/var/macports/distfiles/mediainfo
> --->  Attempting to fetch MediaInfo_CLI_0.7.60_GNU_FromSource.tar.bz2 from http://iweb.dl.sourceforge.net/mediainfo
> 
> Now, running 'curl -IL http://iweb.dl.sourceforge.net/mediainfo/MediaInfo_CLI_0.7.60_GNU_FromSource.tar.bz2' produced a bunch of output that included:
> 
> Location: http://voxel.dl.sourceforge.net/project/mediainfo/binary/mediainfo/0.7.60/MediaInfo_CLI_0.7.60_GNU_FromSource.tar.bz2
> 
> So the idea is to extract the bit: 'project/mediainfo/binary/mediainfo/0.7.60' (and replace "0.7.60" with ${version}).
> 
> Is that right?  Would a How-to with examples like this be a good thing for the wiki?

That's it. Sure, a wiki tutorial would be good, or a script. I had a script I was using to do these fixups for me, but it broke recently and probably needs some adjustment. Let me see if I can fix it up and put it in my scripts directory.