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38de434123
wget is the only downloader currently usable with BR2_PRIMARY_SITE, and that doesn't work at all for file:// URLs. The symptoms are these: support/download/dl-wrapper -c '2.4.47' -d '/PATH/build/sw/source/attr' -D '/PATH/build/sw/source' -f 'attr-2.4.47.src.tar.gz' -H 'package/attr//attr.hash' -n 'attr-2.4.47' -N 'attr' -o '/PATH/build/sw/source/attr/attr-2.4.47.src.tar.gz' -u file\|urlencode+file:///NFS/buildroot_dl_cache/attr -u file\|urlencode+file:///NFS/buildroot_dl_cache -u http+http://download.savannah.gnu.org/releases/attr -u http\|urlencode+http://sources.buildroot.net/attr -u http\|urlencode+http://sources.buildroot.net -- file:///NFS/buildroot_dl_cache/attr/attr-2.4.47.src.tar.gz: Unsupported scheme `file'. ERROR: attr-2.4.47.src.tar.gz has wrong sha256 hash: ERROR: expected: 25772f653ac5b2e3ceeb89df50e4688891e21f723c460636548971652af0a859 ERROR: got : e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 ERROR: Incomplete download, or man-in-the-middle (MITM) attack In the case of custom Linux kernel versions, this is fatal, because there isn't necessarily a hash file to indicate that wget's empty tarball is wrong. This seems to have been broken by commit c8ef0c03b0b, because: 1. BR2_PRIMARY_SITE always appends "urlencode" (package/pkg-download.mk) 2. Anything with the "|urlencode" suffix in $uri will end up using wget due to the backend case wildcarding. 3. The wget backend rejects file:/// URLs ("unsupported scheme"), and we end up with an empty .tar.gz file in the downloads directory. Fix that by shell-extracting the backend name from the left of "|". I'm not positive if all URLs will have a "|", so this code only looks for a "|" left of the "+". Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>