Add project goharbor/distribution with branch release/2.8

Author: peirulu

Common.mk

@@ -604,6 +604,7 @@ $(GIT_CHECKOUT_TARGET): | $(REPO)
 	@rm -f $(REPO)/eks-anywhere-*
 	(cd $(REPO) && $(BASE_DIRECTORY)/build/lib/wait_for_tag.sh $(GIT_TAG))
 	git -C $(REPO) checkout --quiet -f $(GIT_TAG)
+	@mkdir -p $(dir $@)
 	@touch $@
 	@echo -e $(call TARGET_END_LOG)
 

UPSTREAM_PROJECTS.yaml

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 # This file was generated by running `make generate`. DO NOT EDIT
-
 projects:
   - org: apache
     repos:
@@ -113,6 +112,10 @@ projects:
             go_version: "1.23"
   - org: goharbor
     repos:
+      - name: distribution
+        versions:
+          - tag: release/2.8
+            go_version: "1.23"
       - name: harbor
         versions:
           - tag: v2.12.2

build/lib/common.sh

@@ -423,6 +423,14 @@ function build::common::wait_for_tag() {
     git fetch --tags > /dev/null 2>&1
     echo "Tag ${tag} does not exist!"
     echo "Waiting for tag ${tag}..."
+
+     # also check for branch if tag not found
+    echo "Checking for branch ${tag}..."
+    git rev-parse --verify --quiet "origin/${tag}" && echo "Branch ${tag} exists!" && break
+    git fetch --all > /dev/null 2>&1
+    echo "Branch ${tag} does not exist!"
+    echo "Waiting for branch ${tag}..."
+    
     sleep $sleep_interval
     if [ "$i" = "60" ]; then
       exit 1

build/lib/simple_create_tarballs.sh

@@ -38,7 +38,14 @@ function build::simple::tarball() {
   for platform in "${SUPPORTED_PLATFORMS[@]}"; do
     OS="$(cut -d '/' -f1 <<< ${platform})"
     ARCH="$(cut -d '/' -f2 <<< ${platform})"
-    TAR_FILE="${TAR_FILE_PREFIX}-${OS}-${ARCH}-${TAG}.tar.gz"
+
+    # Check if TAG contains '/' and create directory if needed
+    if [[ "$TAG" == *"/"* ]]; then
+        mkdir -p "${TAR_PATH}/${TAR_FILE_PREFIX}-${OS}-${ARCH}-${TAG%/*}"
+        TAR_FILE="${TAR_FILE_PREFIX}-${OS}-${ARCH}-${TAG}.tar.gz"
+    else
+        TAR_FILE="${TAR_FILE_PREFIX}-${OS}-${ARCH}-${TAG}.tar.gz"
+    fi
 
     for path in "${LICENSE_PATHS[@]}"; do
       build::common::echo_and_run build::common::copy_if_source_destination_different $path ${OUTPUT_BIN_DIR}/${OS}-${ARCH}/