add image tag input to shell script

.github/scripts/action.yaml

@@ -29,6 +29,9 @@ inputs:
     required: true
   image_tag:
     description: the tag of hermetic build image
+    required: true
+  generator_version:
+    description: the version of gapic-generator-java
     required: false
   token:
     description: Personal Access Token
@@ -72,9 +75,11 @@ runs:
       bash hermetic_library_generation.sh \
         --target_branch "${BASE_REF}" \
         --current_branch "${HEAD_REF}" \
-        --image_tag "${IMAGE_TAG}"
+        --image_tag "${IMAGE_TAG}" \
+        --generator_version "${GENERATOR_VERSION}"
     env:
       BASE_REF: ${{ inputs.base_ref }}
       HEAD_REF: ${{ inputs.head_ref }}
       IMAGE_TAG: ${{ inputs.image_tag }}
+      GENERATOR_VERSION: ${{ inputs.generator_version }}
       GH_TOKEN: ${{ inputs.token }}

.github/scripts/hermetic_library_generation.sh

@@ -22,8 +22,9 @@ set -e
 # The parameters of this script is:
 # 1. target_branch, the branch into which the pull request is merged.
 # 2. current_branch, the branch with which the pull request is associated.
-# 3. [optional] image_tag, the tag of gcr.io/cloud-devrel-public-resources/java-library-generation.
-# 4. [optional] generation_config, the path to the generation configuration,
+# 3. image_tag, the tag of gcr.io/cloud-devrel-public-resources/java-library-generation.
+# 4.
+# 5. [optional] generation_config, the path to the generation configuration,
 # the default value is generation_config.yaml in the repository root.
 while [[ $# -gt 0 ]]; do
 key="$1"
@@ -40,6 +41,10 @@ case "${key}" in
     image_tag="$2"
     shift
     ;;
+  --generator_version)
+    generator_version="$2"
+    shift
+    ;;
   --generation_config)
     generation_config="$2"
     shift
@@ -62,15 +67,16 @@ if [ -z "${current_branch}" ]; then
   exit 1
 fi
 
+if [ -z "${image_tag}" ]; then
+  echo "missing required argument --image_tag"
+  exit 1
+fi
+
 if [ -z "${generation_config}" ]; then
   generation_config=generation_config.yaml
   echo "Use default generation config: ${generation_config}"
 fi
 
-if [ -z "${image_tag}" ]; then
-  image_tag=$(grep "gapic_generator_version" "${generation_config}" | cut -d ':' -f 2 | xargs)
-fi
-
 workspace_name="/workspace"
 baseline_generation_config="baseline_generation_config.yaml"
 message="chore: generate libraries at $(date)"
@@ -102,7 +108,7 @@ docker run \
   -u "$(id -u):$(id -g)" \
   -v "$(pwd):${workspace_name}" \
   -v "${api_def_dir}:${workspace_name}/googleapis" \
-  -e GENERATOR_VERSION="${image_tag}" \
+  -e GENERATOR_VERSION="${generator_version}" \
   gcr.io/cloud-devrel-public-resources/java-library-generation:"${image_tag}" \
   --generation-config-path="${workspace_name}/${generation_config}" \
   --library-names="${changed_libraries}" \

.github/workflows/hermetic_library_generation.yaml

@@ -50,15 +50,18 @@ jobs:
       shell: bash
       run: |
         GENERATOR_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout -pl gapic-generator-java)
+        SHARED_DEPENDENCIES_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout -pl java-shared-dependencies)
         echo "GENERATOR_VERSION=${GENERATOR_VERSION}" >> "$GITHUB_ENV"
+        echo "SHARED_DEPENDENCIES_VERSION=${SHARED_DEPENDENCIES_VERSION}" >> "$GITHUB_ENV"
         docker build \
           -f .cloudbuild/library_generation/library_generation.Dockerfile \
-          -t gcr.io/cloud-devrel-public-resources/java-library-generation:"${GENERATOR_VERSION}" \
+          -t gcr.io/cloud-devrel-public-resources/java-library-generation:"${SHARED_DEPENDENCIES_VERSION}" \
           .
     - uses: ./.github/scripts
       if: env.SHOULD_RUN == 'true'
       with:
         base_ref: ${{ github.base_ref }}
         head_ref: ${{ github.head_ref }}
-        image_tag: ${{ env.GENERATOR_VERSION }}
+        image_tag: ${{ env.SHARED_DEPENDENCIES_VERSION }}
+        generator_version: ${{ env.GENERATOR_VERSION }}
         token: ${{ secrets.CLOUD_JAVA_BOT_TOKEN }}