WIP: Address various issues about milestones

GitForWindowsHelper/index.js

@@ -61,6 +61,17 @@ module.exports = async function (context, req) {
         return withStatus(500, undefined, e.message || JSON.stringify(e, null, 2))
     }
 
+    try {
+        const {addIssueToCurrentMilestone} = require('./update-milestones')
+        if (req.headers['x-github-event'] === 'pull_request'
+            && ['git-for-windows/build-extra', 'git-for-windows/MINGW-packages', 'git-for-windows/MSYS2-packages'].includes(req.body.repository.full_name)
+            && req.body.action === 'closed'
+            && req.body.pull_request.merged === 'true') return ok(await addIssueToCurrentMilestone(context, req))
+    } catch (e) {
+        context.log(e)
+        return withStatus(500, undefined, e.message || JSON.stringify(e, null, 2))
+    }
+
     try {
         const { cascadingRuns, handlePush } = require('./cascading-runs.js')
         if (req.headers['x-github-event'] === 'check_run'

GitForWindowsHelper/update-milestones.js

@@ -0,0 +1,62 @@
+const addIssueToCurrentMilestone= async (context, req) => {
+    if (req.body.action !== 'closed') return "Nothing to do here: PR has not been closed"
+    if (req.body.pull_request.merged !== 'true') return "Nothing to do here: PR has been closed, but not by merging"
+
+    const owner = 'git-for-windows'
+    const repo = 'git'
+    const sender = req.body.sender.login
+
+    const getToken = (() => {
+        let token
+
+        const get = async () => {
+            const getInstallationIdForRepo = require('./get-installation-id-for-repo')
+            const installationId = await getInstallationIdForRepo(context, owner, repo)
+            const getInstallationAccessToken = require('./get-installation-access-token')
+            return await getInstallationAccessToken(context, installationId)
+        }
+
+        return async () => token || (token = await get())
+    })()
+
+    const isAllowed = async (login) => {
+        if (login === 'gitforwindowshelper[bot]') return true
+        const getCollaboratorPermissions = require('./get-collaborator-permissions')
+        const token = await getToken()
+        const permission = await getCollaboratorPermissions(context, token, owner, repo, login)
+        return ['ADMIN', 'MAINTAIN', 'WRITE'].includes(permission.toString())
+    }
+
+    if (!await isAllowed(sender)) throw new Error(`${sender} is not allowed to do that`)
+
+    const githubApiRequest = require('./github-api-request')
+
+    const candidates = req.body.pull_request.body.match(/(?:[Cc]loses|[Ff]ixes) (?:https:\/\/github\.com\/git-for-windows\/git\/issues\/|#)(\d+)/)
+
+    if (candidates.length !== 1) throw new Error(`Expected 1 candidate issue, got ${candidates.length}`)
+
+    const { getCurrentMilestone } = require('./GitForWindowsHelper/milestones')
+    const current = await getCurrentMilestone(console, await getToken(), owner, repo)
+
+    const issueNumber = candidates[0]
+    const issue = await githubApiRequest(context, await getToken(), 'GET', `/repos/${owner}/${repo}/issues/${issueNumber}`)
+
+    if (issue.labels.length>0){
+        for (const label of issue.labels) {
+            if (label.name === "component-update"){
+                await githubApiRequest(context, await getToken(), 'PATCH', `/repos/${owner}/${repo}/issues/${issueNumber}`, {
+                    milestone: current.id
+                })
+
+                return `Added issue ${issueNumber} to milestone "Next release"`
+            }
+        }
+    }
+
+    throw new Error(`Issue ${issueNumber} isn't a component update`)
+}
+
+
+module.exports = {
+    addIssueToCurrentMilestone,
+}