WIP: Address various issues about milestones

GitForWindowsHelper/index.js

@@ -72,6 +72,17 @@ module.exports = async function (context, req) {
         return withStatus(500, undefined, e.message || JSON.stringify(e, null, 2))
     }
 
+    try {
+        const {renameCurrentAndCreateNextMilestone} = require('./update-milestones')
+        if (req.headers['x-github-event'] === 'pull_request'
+            && req.body.repository.full_name === 'git-for-windows/git'
+            && req.body.action === 'opened'
+            && req.body.pull_request.merged === 'true') return ok(await renameCurrentAndCreateNextMilestone(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

@@ -56,7 +56,45 @@ const addIssueToCurrentMilestone= async (context, req) => {
     throw new Error(`Issue ${issueNumber} isn't a component update`)
 }
 
+const renameCurrentAndCreateNextMilestone = async (context, req) => {
+    const gitVersionMatch = req.body.pull_request.title.match(/^Rebase to (v\d+\.\d+\.\d+)$/)
+    if (!gitVersionMatch) throw new Error(`Not a new Git version: ${req.body.pull_request.title}`)
+    const gitVersion = gitVersionMatch[1]
+
+    const owner = 'git-for-windows'
+    const repo = 'git'
+    const sender = req.body.sender.login
+
+    const getToken = (() => {
+        let token
+
+        const get = async () => {
+            const getInstallationIdForRepo = require('./get-installation-id-for-repo')
+            const installationId = await getInstallationIdForRepo(context, owner, repo)
+            const getInstallationAccessToken = require('./get-installation-access-token')
+            return await getInstallationAccessToken(context, installationId)
+        }
+
+        return async () => token || (token = await get())
+    })()
+
+    const isAllowed = async (login) => {
+        if (login === 'gitforwindowshelper[bot]') return true
+        const getCollaboratorPermissions = require('./get-collaborator-permissions')
+        const token = await getToken()
+        const permission = await getCollaboratorPermissions(context, token, owner, repo, login)
+        return ['ADMIN', 'MAINTAIN', 'WRITE'].includes(permission.toString())
+    }
+
+    if (!await isAllowed(sender)) throw new Error(`${sender} is not allowed to do that`)
+
+    const { getCurrentMilestone, renameMilestone, openNextReleaseMilestone } = require('./milestones')
+    const current = await getCurrentMilestone(console, await getToken(), owner, repo)
+    await renameMilestone(context, await getToken(), owner, repo,current.id, gitVersion)
+    await openNextReleaseMilestone(context, await getToken(), owner, repo)
+}
 
 module.exports = {
     addIssueToCurrentMilestone,
+    renameCurrentAndCreateNextMilestone
 }