ARROW-1234: Test A

.github/workflows/pull-request-title-comment.md

@@ -0,0 +1,13 @@
+Thanks for opening a pull request!
+
+Could you open an issue for this pull request on JIRA?
+https://issues.apache.org/jira/browse/ARROW
+
+Then could you also rename pull request title in the following format?
+
+    ARROW-\${JIRA_ID}: [${COMPONENT}] ${SUMMARY}
+
+See also:
+
+  * [Other pull requests](https://github.com/apache/arrow/pulls/)
+  * [Contribution Guidelines - How to contribute patches](https://arrow.apache.org/docs/developers/contributing.html#how-to-contribute-patches)

.github/workflows/pull-request-title.yml

@@ -0,0 +1,80 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+name: Pull request title
+on:
+  schedule:
+    # - cron: |
+    #     */15 * * * *
+    - cron: |
+        3 * * * *
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check pull request title
+        uses: actions/github-script@0.2.0
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const {owner: owner, repo: repo} = context.repo;
+
+            function haveJIRAID(title) {
+              if (!title) {
+                return false;
+              }
+              return /^ARROW-\d+/.test(title);
+            }
+
+            async function commentOpenJIRAIssue(pullRequestNumber) {
+              const {data: comments} = await github.issues.listComments({
+                owner: owner,
+                repo: repo,
+                issue_number: pullRequestNumber,
+                per_page: 1
+              });
+              if (comments.length > 0) {
+                return;
+              }
+              const response = await github.repos.getContents({
+                owner: owner,
+                repo: repo,
+                path: ".github/workflows/pull-request-title-comment.md",
+                ref: context.sha
+              });
+              await github.issues.createComment({
+                owner: owner,
+                repo: repo,
+                issue_number: pullRequestNumber,
+                body: response.data.content
+              });
+            }
+
+            (async () => {
+              const {data: pulls} = await github.pulls.list({
+                owner: owner,
+                repo: repo,
+              });
+              pulls.forEach(async (pull) => {
+                const pullRequestNumber = pull.number;
+                const title = pull.title;
+                if (!haveJIRAID(title)) {
+                  await commentOpenJIRAIssue(pullRequestNumber);
+                }
+              });
+            })();

README.md

@@ -90,3 +90,4 @@ integrations in other projects, we'd be happy to have you involved:
 [3]: https://issues.apache.org/jira/browse/ARROW
 [4]: https://github.com/apache/arrow
 [5]: https://github.com/apache/arrow/blob/master/docs/source/developers/contributing.rst
+