make target branch name mandatory and specific ci job optional

add it as an npm script `npm run mock-release -- TARGET_BRANCH`

package.json

@@ -53,6 +53,7 @@
     "create-api-json": "electron-docs-linter docs --outfile=out/electron-api.json --version=$npm_package_version",
     "create-typescript-definitions": "npm run create-api-json && electron-typescript-definitions --in=out/electron-api.json --out=out/electron.d.ts",
     "merge-release": "node ./script/merge-release.js",
+    "mock-release": "node ./script/ci-release-build.js",
     "preinstall": "node -e 'process.exit(0)'",
     "publish-to-npm": "node ./script/publish-to-npm.js",
     "prepack": "check-for-leaks",

script/ci-release-build.js

@@ -9,40 +9,48 @@ const ciJobs = [
   'electron-linux-arm'
 ]
 
+const CIcall = (buildUrl, targetBranch, job) => {
+  console.log(`Triggering CircleCI to run build job: ${job} on branch: ${targetBranch} with release flag.`)
+
+  request({
+    method: 'POST',
+    url: buildUrl,
+    headers: {
+      'Content-Type': 'application/json',
+      'Accept': 'application/json'
+    },
+    body: JSON.stringify({
+      'build_parameters': {
+        'RUN_RELEASE_BUILD': 'true',
+        'CIRCLE_JOB': job
+      }
+    })
+  }, (err, res, body) => {
+    if (!err && res.statusCode >= 200 && res.statusCode < 300) {
+      const build = JSON.parse(body)
+      console.log(`Check ${build.build_url} for status. (${job})`)
+    } else {
+      console.log('Error: ', err || JSON.parse(res.body), job)
+    }
+  })
+}
+
 if (args._.length < 1) {
   console.log(`Trigger Circle CI to build release builds of electron.
-  Usage: ci-release-build.js [--branch=TARGET_BRANCH] CI_JOB_NAME
+  Usage: ci-release-build.js [--job=CI_JOB_NAME] TARGET_BRANCH
   `)
   process.exit(1)
 }
 
-const targetBranch = args['branch'] || 'master'
-const ciJob = args._[0]
-assert(ciJobs.includes(ciJob), `Unknown ci job name: ${ciJob}.`)
 assert(process.env.CIRCLE_TOKEN, 'CIRCLE_TOKEN not found in environment')
 
-const circleBuildURL = `https://circleci.com/api/v1.1/project/github/electron/electron/tree/${targetBranch}?circle-token=${process.env.CIRCLE_TOKEN}`
+const targetBranch = args._[0]
+const job = args['job']
+const circleBuildUrl = `https://circleci.com/api/v1.1/project/github/electron/electron/tree/${targetBranch}?circle-token=${process.env.CIRCLE_TOKEN}`
 
-console.log(`Triggering CircleCI to run build job: ${ciJob} against branch: ${targetBranch} with release flag.`)
-
-request({
-  method: 'POST',
-  url: circleBuildURL,
-  headers: {
-    'Content-Type': 'application/json',
-    'Accept': 'application/json'
-  },
-  body: JSON.stringify({
-    'build_parameters': {
-      'RUN_RELEASE_BUILD': 'true',
-      'CIRCLE_JOB': ciJob
-    }
-  })
-}, (err, res, body) => {
-  if (!err && body) {
-    const build = JSON.parse(body)
-    console.log(`check ${build.build_url} for status`)
-  } else {
-    console.log('error', err)
-  }
-})
+if (job) {
+  assert(ciJobs.includes(job), `Unknown CI job name: ${job}.`)
+  CIcall(circleBuildUrl, targetBranch, job)
+} else {
+  ciJobs.forEach((job) => CIcall(circleBuildUrl, targetBranch, job))
+}