[openwrt/openwrt] build: FeedSourcesAppend add kmod feed to snapshot

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/071514c6419151674d50a4607dc09303f54014ce

commit 071514c6419151674d50a4607dc09303f54014ce
Author: Paul Spooren <mail at aparcar.org>
AuthorDate: Tue Sep 15 12:33:46 2020 -1000

    build: FeedSourcesAppend add kmod feed to snapshot
    
    Nightly snapshot builds of OpenWrt change their kernels versions
    frequently and lose thereby compatibility to kmods from the upstream
    target specific packages feed.
    
    To allow opkg to install packages over multiple days a kmod archive is
    offered at $target/$subtarget/kmods/$kernelversion and added as a feed
    to created snapshot images via a buildbot step[1].
    
    Instead of using a buildstep add the kmod feed directly via
    FeedSourcesAppend to be included in the ImageBuilder repositories.conf
    as well. This is conditionally only done for SNAPSHOT builds and when
    running as BUILDBOT. Releases are unaffected as they don't include
    kernel version changes and local builds may use different kernel
    versions or magics than available upstream.
    
    This commit allows in a future step to ship ImageBuilders without a
    locally stored kmod archive.
    
    [1]: https://git.openwrt.org/?p=buildbot.git;a=blob;f=phase1/master.cfg;h=3ba7a1606e89b095b10555e703ea96e93295deec;hb=HEAD#l1025
    
    Signed-off-by: Paul Spooren <mail at aparcar.org>
---
 include/feeds.mk | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/feeds.mk b/include/feeds.mk
index 9637424c5b..2b259b96b3 100644
--- a/include/feeds.mk
+++ b/include/feeds.mk
@@ -36,6 +36,8 @@ define FeedSourcesAppend
   echo 'src/gz %d_core %U/targets/%S/packages'; \
   $(strip $(if $(CONFIG_PER_FEED_REPO), \
 	echo 'src/gz %d_base %U/packages/%A/base'; \
+	$(if $(filter %SNAPSHOT-y,$(VERSION_NUMBER)-$(CONFIG_BUILDBOT)), \
+		echo 'src/gz %d_kmods %U/targets/%S/kmods/$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC)';) \
 	$(foreach feed,$(FEEDS_AVAILABLE), \
 		$(if $(CONFIG_FEED_$(feed)), \
 			echo '$(if $(filter m,$(CONFIG_FEED_$(feed))),# )src/gz %d_$(feed) %U/packages/%A/$(feed)';)))) \