[OE-core] File conflicts in DL_DIR

[Matt Madison]

On Wed, Oct 12, 2016 at 10:01 AM, Phil Blundell <pb at pbcl.net> wrote:
> I just ran into an annoying problem with two recipes whose upstreams
> both use the same poor naming scheme for their downloadable tarballs
> which causes the sources to collide in DL_DIR.  One of them is eudev,
> which has:
>
> SRC_URI = "https://github.com/gentoo/${BPN}/archive/v${PV}.tar.gz
>
> This shows up as a source checksum error when the second package finds
> what it thinks are its sources in DL_DIR, but of course they are not
> the files that it wanted.
>
> I couldn't immediately find any easy way to work around this
> difficulty.  Setting "localpath=eudev_v{$PV}.tar.gz" in eudev's SRC_URI
> looks superficially like it ought to do the right thing, but although
> this changes the location that the fetcher will search for the
> downloaded file it doesn't actually cause wget to put the file there so
> this doesn't work either.

I use ";downloadfilename=${BPN}-${PV}.tar.gz" to deal with this
problem, and it's worked well for me.

-Matt

>
> I suppose I could define DL_DIR in terms of ${PN}, which would
> presumably fix this problem at the cost of causing all my previous
> downloads to be repeated.  Or I could stop using eudev, or wait for one
> of the two packages to release a new version. :-)  Any better
> suggestions?
>
> thanks
>
> p.
>
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