Append mailing-list thread link to new Discussion #1
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| # 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: Append mailing-list thread link to new Discussion | |
| on: | |
| discussion: | |
| types: [created] | |
| permissions: | |
| discussions: write | |
| contents: read | |
| jobs: | |
| link-thread: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Append thread URL | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const { context, github, core } = require('@actions/github'); | |
| const owner = context.repo.owner; | |
| const repo = context.repo.repo; | |
| const discussion = context.payload.discussion; | |
| const number = discussion.number; | |
| const title = discussion.title || ''; | |
| const baseUrl = 'https://lists.apache.org/api/stats.lua'; | |
| const list = 'dev'; | |
| const domain = 'opendal.apache.org'; | |
| const searchParams = { header_subject: title, d: 'lte=7d' }; | |
| function normalize(value) { | |
| return (value || '').trim().toLowerCase(); | |
| } | |
| function flatten(nodes) { | |
| const result = []; | |
| const stack = [...(nodes || [])]; | |
| while (stack.length) { | |
| const current = stack.pop(); | |
| result.push(current); | |
| if (Array.isArray(current.children) && current.children.length) { | |
| stack.push(...current.children); | |
| } | |
| } | |
| return result; | |
| } | |
| async function fetchStats(params) { | |
| const searchParams = new URLSearchParams({ list, domain }); | |
| for (const [key, value] of Object.entries(params)) { | |
| if (value) { | |
| searchParams.set(key, value); | |
| } | |
| } | |
| const response = await fetch(`${baseUrl}?${searchParams.toString()}`, { | |
| headers: { accept: 'application/json' }, | |
| }); | |
| if (!response.ok) { | |
| throw new Error(`lists API ${response.status}`); | |
| } | |
| return response.json(); | |
| } | |
| function extractTid(stats, normalizedTitle) { | |
| const threads = flatten(stats.thread_struct); | |
| if (!threads.length) { | |
| return null; | |
| } | |
| const emails = Array.isArray(stats.emails) ? stats.emails : []; | |
| const rootEmails = emails | |
| .filter(email => !email['in-reply-to']) | |
| .sort((a, b) => a.epoch - b.epoch); | |
| for (const email of rootEmails) { | |
| const match = threads.find(thread => thread.tid === email.id); | |
| if (match) { | |
| return match.tid; | |
| } | |
| } | |
| const normalizedSubjects = new Set([normalizedTitle]); | |
| for (const email of rootEmails) { | |
| normalizedSubjects.add(normalize(email.subject)); | |
| } | |
| const rootThreads = threads.filter(thread => thread.nest === 1); | |
| for (const subject of normalizedSubjects) { | |
| const match = rootThreads.find(thread => normalize(thread.subject) === subject); | |
| if (match) { | |
| return match.tid; | |
| } | |
| } | |
| if (rootThreads.length === 1) { | |
| return rootThreads[0].tid; | |
| } | |
| for (const subject of normalizedSubjects) { | |
| const match = threads.find(thread => normalize(thread.subject) === subject); | |
| if (match) { | |
| return match.tid; | |
| } | |
| } | |
| return null; | |
| } | |
| async function locateThreadTid() { | |
| const normalizedTitle = normalize(title); | |
| if (!normalizedTitle) { | |
| core.info('Discussion title missing, cannot query mailing list'); | |
| return null; | |
| } | |
| try { | |
| const stats = await fetchStats(searchParams); | |
| const tid = extractTid(stats, normalizedTitle); | |
| if (tid) { | |
| core.info('Found thread via header_subject search'); | |
| return tid; | |
| } | |
| } catch (error) { | |
| core.info(`Search failed: ${error.message}`); | |
| } | |
| return null; | |
| } | |
| const deadline = Date.now() + 15 * 60 * 1000; | |
| const delays = [5, 10, 20, 30, 45, 60, 90, 120]; | |
| let attempt = 0; | |
| let tid = null; | |
| while (Date.now() < deadline && !tid) { | |
| attempt += 1; | |
| tid = await locateThreadTid(); | |
| if (tid) { | |
| break; | |
| } | |
| const wait = delays[Math.min(attempt - 1, delays.length - 1)]; | |
| core.info(`Thread not found yet, retrying in ${wait}s...`); | |
| await new Promise(resolve => setTimeout(resolve, wait * 1000)); | |
| } | |
| if (!tid) { | |
| core.setFailed('Timeout: thread not found yet'); | |
| return; | |
| } | |
| const threadUrl = `https://lists.apache.org/thread/${tid}`; | |
| const { data: current } = await github.request( | |
| 'GET /repos/{owner}/{repo}/discussions/{number}', | |
| { owner, repo, number } | |
| ); | |
| const body = current.body || ''; | |
| if (body.includes(threadUrl)) { | |
| core.info('Thread URL already present'); | |
| return; | |
| } | |
| const separator = body.trim().length ? '\n\n' : ''; | |
| const newBody = `${body}${separator}---\n**Mailing list thread:** ${threadUrl}\n`; | |
| await github.request( | |
| 'PATCH /repos/{owner}/{repo}/discussions/{discussion_number}', | |
| { owner, repo, discussion_number: number, body: newBody } | |
| ); | |
| core.info(`Appended ${threadUrl}`); |