chore: always fully generate the repo if it is a non-monorepo or contains common protos

.github/scripts/hermetic_library_generation.sh

@@ -64,17 +64,14 @@ fi
 
 image_tag=local
 workspace_name="/workspace"
-docker_file="library_generation.Dockerfile"
+baseline_generation_config="baseline_generation_config.yaml"
 message="chore: generate libraries at $(date)"
 
+git checkout "${target_branch}"
 git checkout "${current_branch}"
-# if the last commit doesn't contain changes to generation configuration
-# or Dockerfile, do not generate again as the result will be the same.
-change_of_last_commit="$(git diff-tree --no-commit-id --name-only HEAD~1..HEAD -r)"
-if [[ ! ("${change_of_last_commit}" == *"${generation_config}"* || "${change_of_last_commit}" == *"${docker_file}"*) ]]; then
-    echo "The last commit doesn't contain any changes to the generation_config.yaml or Dockerfile, skipping the whole generation process." || true
-    exit 0
-fi
+
+# copy generation configuration from target branch to current branch.
+git show "${target_branch}":"${generation_config}" > "${baseline_generation_config}"
 
 generator_version=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout -pl gapic-generator-java)
 echo "Local generator version: ${generator_version}"
@@ -94,10 +91,12 @@ docker run \
   -v "$(pwd):${workspace_name}" \
   -v "$HOME"/.m2:/home/.m2 \
   -e GENERATOR_VERSION="${generator_version}" \
-  gcr.io/cloud-devrel-public-resources/java-library-generation:"${image_tag}"
+  gcr.io/cloud-devrel-public-resources/java-library-generation:"${image_tag}" \
+  --baseline-generation-config-path="${workspace_name}/${baseline_generation_config}" \
+  --current-generation-config-path="${workspace_name}/${generation_config}"
 
 # commit the change to the pull request.
-rm -rdf output googleapis
+rm -rdf output googleapis "${baseline_generation_config}"
 git add --all -- ':!pr_description.txt'
 changed_files=$(git diff --cached --name-only)
 if [[ "${changed_files}" == "" ]]; then

.github/workflows/hermetic_library_generation.yaml

@@ -17,10 +17,11 @@ name: Hermetic library generation upon generation config change through pull req
 on:
   pull_request:
 
+env:
+  REPO_FULL_NAME: ${{ github.event.pull_request.head.repo.full_name }}
+  GITHUB_REPOSITORY: ${{ github.repository }}
 jobs:
   library_generation:
-    # skip pull requests come from a forked repository
-    if: github.event.pull_request.head.repo.full_name == github.repository
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
@@ -31,6 +32,10 @@ jobs:
       shell: bash
       run: |
         set -x
+        if [[ "${GITHUB_REPOSITORY}" != "${REPO_FULL_NAME}" ]]; then
+          echo "This PR comes from a fork. Skip library generation."
+          exit 0
+        fi
         [ -z "$(git config user.email)" ] && git config --global user.email "cloud-java-bot@google.com"
         [ -z "$(git config user.name)" ] && git config --global user.name "cloud-java-bot"
         bash .github/scripts/hermetic_library_generation.sh \

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/Advice.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/config_change.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AdviceOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/config_change.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface AdviceOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AnnotationsProto.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/annotations.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public final class AnnotationsProto {

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthProto.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public final class AuthProto {

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthProvider.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthProviderOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface AuthProviderOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthRequirement.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthRequirementOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface AuthRequirementOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/Authentication.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthenticationOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface AuthenticationOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthenticationRule.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/AuthenticationRuleOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/auth.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface AuthenticationRuleOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/Backend.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/backend.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/BackendOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/backend.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface BackendOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/BackendProto.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/backend.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public final class BackendProto {

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/BackendRule.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/backend.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/BackendRuleOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/backend.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface BackendRuleOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/Billing.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/billing.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/BillingOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/billing.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface BillingOrBuilder

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/BillingProto.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/billing.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public final class BillingProto {

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/ChangeType.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/config_change.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/ClientLibraryDestination.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/client.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/ClientLibraryOrganization.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/client.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/ClientLibrarySettings.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/client.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 /**

java-common-protos/proto-google-common-protos/src/main/java/com/google/api/ClientLibrarySettingsOrBuilder.java

@@ -16,7 +16,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // source: google/api/client.proto
 
-// Protobuf Java Version: 3.25.3
+// Protobuf Java Version: 3.25.4
 package com.google.api;
 
 public interface ClientLibrarySettingsOrBuilder