chore: regenerate templates

* chore(ci): skip autorelease workflow on non-release PRs

Source-Author: Stephanie Wang <stephaniewang526@users.noreply.github.com>
Source-Date: Thu Sep 24 16:57:32 2020 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 95dbe1bee3c7f7e52ddb24a54c37080620e0d1a2
Source-Link: googleapis/synthtool@95dbe1b

* chore(ci): verify autorelease release PR content has changes

Source-Author: Stephanie Wang <stephaniewang526@users.noreply.github.com>
Source-Date: Thu Sep 24 18:06:14 2020 -0400
Source-Repo: googleapis/synthtool
Source-Sha: da29da32b3a988457b49ae290112b74f14b713cc
Source-Link: googleapis/synthtool@da29da3

* chore(java): use separate autosynth job for README

Split java README generation into a separate, per-repo continuous job running from Kokoro.

We now generate a new job that runs on commits to the primary branch that strictly manages the README.md. This should prevent us from seeing the contextless autosynth PRs which are caused by non-proto/template upstream changes.

Source-Author: Jeff Ching <chingor@google.com>
Source-Date: Tue Sep 29 15:48:03 2020 -0700
Source-Repo: googleapis/synthtool
Source-Sha: e6168630be3e31eede633ba2c6f1cd64248dec1c
Source-Link: googleapis/synthtool@e616863

Author: yoshi-automation

.github/readme/synth.py

@@ -0,0 +1,19 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""This script is used to synthesize generated the README for this library."""
+
+from synthtool.languages import java
+
+java.custom_templates(["java_library/README.md"])

.github/workflows/auto-release.yaml

@@ -4,6 +4,7 @@ name: auto-release
 jobs:
   approve:
     runs-on: ubuntu-latest
+    if: contains(github.head_ref, 'release-v')
     steps:
     - uses: actions/github-script@v3.0.0
       with:
@@ -20,6 +21,24 @@ jobs:
             return;
           }
 
+          // only approve PRs with pom.xml and versions.txt changes
+          const filesPromise = github.pulls.listFiles.endpoint({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            pull_number: context.payload.pull_request.number,
+          });
+          const changed_files = await github.paginate(filesPromise)
+
+          if ( changed_files.length < 1 ) {
+            console.log( "Not proceeding since PR is empty!" )
+            return;
+          }
+
+          if ( !changed_files.some(v => v.filename.includes("pom")) || !changed_files.some(v => v.filename.includes("versions.txt")) ) {
+            console.log( "PR file changes do not have pom.xml or versions.txt -- something is wrong. PTAL!" )
+            return;
+          }
+
           // trigger auto-release when
           // 1) it is a SNAPSHOT release (auto-generated post regular release)
           // 2) there are dependency updates only

.kokoro/continuous/readme.cfg

@@ -0,0 +1,55 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/python-multi"
+}
+
+env_vars: {
+  key: "TRAMPOLINE_BUILD_FILE"
+  value: "github/java-iam/.kokoro/readme.sh"
+}
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+    regex: "**/*sponge_log.log"
+  }
+}
+
+# The github token is stored here.
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "yoshi-automation-github-key"
+      # TODO(theacodes): remove this after secrets have globally propagated
+      backend_type: FASTCONFIGPUSH
+    }
+  }
+}
+
+# Common env vars for all repositories and builds.
+env_vars: {
+    key: "GITHUB_USER"
+    value: "yoshi-automation"
+}
+env_vars: {
+    key: "GITHUB_EMAIL"
+    value: "yoshi-automation@google.com"
+}

.kokoro/readme.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+cd ${KOKORO_ARTIFACTS_DIR}/github/java-iam
+
+# Disable buffering, so that the logs stream through.
+export PYTHONUNBUFFERED=1
+
+# Kokoro exposes this as a file, but the scripts expect just a plain variable.
+export GITHUB_TOKEN=$(cat ${KOKORO_KEYSTORE_DIR}/73713_yoshi-automation-github-key)
+
+# Setup git credentials
+echo "https://${GITHUB_TOKEN}:@github.com" >> ~/.git-credentials
+git config --global credential.helper 'store --file ~/.git-credentials'
+
+python3.6 -m pip install git+https://github.com/googleapis/synthtool.git#egg=gcp-synthtool
+python3.6 -m autosynth.synth \
+    --repository=googleapis/java-iam \
+    --synth-file-name=.github/readme/synth.py \
+    --metadata-path=.github/readme/synth.metadata \
+    --pr-title="chore: regenerate README" \
+    --branch-suffix="readme"

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-iam.git",
-        "sha": "1a7b7748bf19ad1220e25c3780d263c48befaa04"
+        "sha": "9ca319948ff7e9235848439d669462a3c71a1466"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "916c10e8581804df2b48a0f0457d848f3faa582e"
+        "sha": "e6168630be3e31eede633ba2c6f1cd64248dec1c"
       }
     }
   ],
@@ -29,6 +29,7 @@
     ".github/ISSUE_TEMPLATE/feature_request.md",
     ".github/ISSUE_TEMPLATE/support_request.md",
     ".github/PULL_REQUEST_TEMPLATE.md",
+    ".github/readme/synth.py",
     ".github/release-please.yml",
     ".github/trusted-contribution.yml",
     ".github/workflows/auto-release.yaml",
@@ -40,6 +41,7 @@
     ".kokoro/common.sh",
     ".kokoro/continuous/common.cfg",
     ".kokoro/continuous/java8.cfg",
+    ".kokoro/continuous/readme.cfg",
     ".kokoro/dependencies.sh",
     ".kokoro/linkage-monitor.sh",
     ".kokoro/nightly/common.cfg",
@@ -63,6 +65,7 @@
     ".kokoro/presubmit/linkage-monitor.cfg",
     ".kokoro/presubmit/lint.cfg",
     ".kokoro/presubmit/samples.cfg",
+    ".kokoro/readme.sh",
     ".kokoro/release/bump_snapshot.cfg",
     ".kokoro/release/common.cfg",
     ".kokoro/release/common.sh",