[Developer] Check pull request title

.dir-locals.el

@@ -15,6 +15,8 @@
 ;;; specific language governing permissions and limitations
 ;;; under the License.
 
-((sh-mode . ((indent-tabs-mode . nil)
+((js-mode . ((indent-tabs-mode . nil)
+             (js-indent-level . 2)))
+ (sh-mode . ((indent-tabs-mode . nil)
              (sh-indentation   . 2)
              (sh-basic-offset  . 2))))

.github/workflows/pull_request.yml

@@ -0,0 +1,53 @@
+# 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
+on:
+  schedule:
+    - cron: |
+        */15 * * * *
+jobs:
+  jira-link:
+    name: JIRA link
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Comment
+        uses: actions/github-script@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require("fs");
+            const path = ".github/workflows/pull_request/jira_link.js";
+            const script = await fs.readFile(path);
+            const run = new Function("github", "context", script);
+            run(github, context);
+  title-check:
+    name: Title check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Check
+        uses: actions/github-script@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require("fs");
+            const path = ".github/workflows/pull_request/title_check.js";
+            const script = await fs.readFile(path);
+            const run = new Function("github", "context", script);
+            run(github, context);

.github/workflows/pull_request/jira_link.js

@@ -0,0 +1,60 @@
+const {owner: owner, repo: repo} = context.repo;
+
+function detectJIRAID(title) {
+  if (!title) {
+    return null;
+  }
+  const matched = /^ARROW-\d+/.exec(title);
+  if (!matched) {
+    return null;
+  }
+  return matched[0];
+}
+
+async function haveComment(pullRequestNumber, body) {
+  const options = {
+    owner: owner,
+    repo: repo,
+    issue_number: pullRequestNumber,
+    page: 1
+  };
+  while (true) {
+    const response = await github.issues.listComments(options);
+    if (response.data.some(comment => comment.body === body)) {
+      return true;
+    }
+    if (!/;\s*rel="next"/.test(response.headers.link || "")) {
+      break;
+    }
+    options.page++;
+  }
+  return false;
+}
+
+async function commentJIRAURL(pullRequestNumber, jiraID) {
+  const jiraURL = `https://issues.apache.org/jira/browse/${jiraID}`;
+  if (await haveComment(pullRequestNumber, jiraURL)) {
+    return;
+  }
+  await github.issues.createComment({
+    owner: owner,
+    repo: repo,
+    issue_number: pullRequestNumber,
+    body: jiraURL
+  });
+}
+
+(async () => {
+  const {data: pulls} = await github.pulls.list({
+    owner: owner,
+    repo: repo,
+  });
+  pulls.forEach(async (pull) => {
+    const pullRequestNumber = pull.number;
+    const title = pull.title;
+    const jiraID = detectJIRAID(title);
+    if (jiraID) {
+      await commentJIRAURL(pullRequestNumber, jiraID);
+    }
+  });
+})();

.github/workflows/pull_request/title_check.js

@@ -0,0 +1,44 @@
+const fs = require("fs");
+
+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 commentPath = ".github/workflows/pull_request/title_check.md";
+  const comment = await fs.readFile(commentPath);
+  await github.issues.createComment({
+    owner: owner,
+    repo: repo,
+    issue_number: pullRequestNumber,
+    body: comment
+  });
+}
+
+(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);
+    }
+  });
+})();

.github/workflows/pull_request/title_check.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)