make kernel read/build and check part of CI

Signed-off-by: Avi Deitcher <avi@deitcher.net>

.github/workflows/ci.yml

@@ -130,6 +130,23 @@ jobs:
       run: |
         make OPTIONS="-v --skip-platforms linux/s390x" -C test/pkg build
 
+    - name: Check Kernel Dependencies up to date
+      # checks that any kernel dependencies are up to date.
+      # if they are, then running `make update-kernel-yamls` will not change anything
+      run: |
+        echo "checking git diff before running make update-kernel-yamls"
+        git diff --exit-code
+        echo "running make update-kernel-yamls"
+        make -C kernel update-kernel-yamls
+        echo "checking git diff again after running make update-kernel-yamls; should be no changes"
+        git diff --exit-code
+
+    - name: Build Kernels
+      # ensures that the kernel packages are in linuxkit cache when we need them for tests later
+      # no need for excluding s390x, as each build.yml in the kernel explicitly lists archs
+      run: |
+        make OPTIONS="-v" -C kernel build
+
     - name: list cache contents
       run: |
         linuxkit cache ls

.github/workflows/publish.yaml

@@ -63,3 +63,11 @@ jobs:
       # Skip s390x as emulation is unreliable
       run: |
         make OPTIONS="--skip-platforms linux/s390x" -C pkg push PUSHOPTIONS="--nobuild"
+
+    - name: Publish Kernels
+      # this should only push changed ones:
+      #  - unchanged: already in the registry
+      #  - changed: already built and cached, so only will push
+      # No need to skip s390x, since kernel build.yml files all have explicit archs
+      run: |
+        make -C kernel push

scripts/update-component-sha.sh

@@ -69,7 +69,7 @@ case "${mode}" in
         fi
         old=$1
         new=$2
-        git grep -E -l "\b($old)([[:space:]]|$)?" -- '*.yml' '*.yaml' '*.yml.in' '*.yaml.in' '*/Dockerfile' '*/Makefile' | grep -v /vendor/ | while read -r file; do sed -ri.bak -e "s,($old)([[:space:]]|$)?,$new\2,g" "$file"; done
+        git grep -E -l "\b($old)([[:space:]]|$)" -- '*.yml' '*.yaml' '*.yml.in' '*.yaml.in' '*/Dockerfile' '*/Makefile' | grep -v /vendor/ | while read -r file; do sed -ri.bak -e "s,($old)([[:space:]]|$),$new\2,g" "$file"; done
         ;;
 --image)
 	if [ $# -lt 1 ] ; then
@@ -99,4 +99,4 @@ case "${mode}" in
 	;;
 esac
 
-find . -name '*.bak' | xargs rm
+find . -name '*.bak' | xargs rm || true