ci: use GITHUB_REF and GITHUB_SHA to set version and commit

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

docker-bake.hcl

@@ -47,6 +47,18 @@ variable "PACKAGER_NAME" {
   default = ""
 }
 
+# GITHUB_REF is the actual ref that triggers the workflow and used as version
+# when tag is pushed: https://docs.github.com/en/actions/learn-github-actions/environment-variables#default-environment-variables
+variable "GITHUB_REF" {
+  default = ""
+}
+
+# GITHUB_SHA is the commit SHA that triggered the workflow and used as commit.
+# https://docs.github.com/en/actions/learn-github-actions/environment-variables#default-environment-variables
+variable "GITHUB_SHA" {
+  default = ""
+}
+
 # Defines the output folder
 variable "DESTDIR" {
   default = ""
@@ -64,8 +76,8 @@ target "_common" {
     DOCKER_STATIC = DOCKER_STATIC
     DOCKER_LDFLAGS = DOCKER_LDFLAGS
     DOCKER_BUILDTAGS = DOCKER_BUILDTAGS
-    DOCKER_GITCOMMIT = DOCKER_GITCOMMIT
-    VERSION = VERSION
+    DOCKER_GITCOMMIT = DOCKER_GITCOMMIT != "" ? DOCKER_GITCOMMIT : GITHUB_SHA
+    VERSION = VERSION != "" ? VERSION : GITHUB_REF
     PLATFORM = PLATFORM
     PRODUCT = PRODUCT
     DEFAULT_PRODUCT_LICENSE = DEFAULT_PRODUCT_LICENSE

hack/make.sh

@@ -39,6 +39,14 @@ DEFAULT_BUNDLES=(
 )
 
 VERSION=${VERSION:-dev}
+if [[ $VERSION == refs/tags/* ]]; then
+	VERSION=${VERSION#refs/tags/}
+elif [[ $VERSION == refs/heads/* ]]; then
+	VERSION=$(sed <<< "${VERSION#refs/heads/}" -r 's#/+#-#g')
+elif [[ $VERSION == refs/pull/* ]]; then
+	VERSION=pr-$(grep <<< "$VERSION" -o '[0-9]\+')
+fi
+
 ! BUILDTIME=$(date -u -d "@${SOURCE_DATE_EPOCH:-$(date +%s)}" --rfc-3339 ns 2> /dev/null | sed -e 's/ /T/')
 if [ "$DOCKER_GITCOMMIT" ]; then
 	GITCOMMIT="$DOCKER_GITCOMMIT"