build: add support for automated minor releases (#20620)

* build: add support for automated minor releases

* Add test for minor bump

script/release/prepare-release.js

@@ -23,7 +23,7 @@ const pass = '✓'.green
 const fail = '✗'.red
 
 if (!bumpType && !args.notesOnly) {
-  console.log(`Usage: prepare-release [stable | beta | nightly]` +
+  console.log(`Usage: prepare-release [stable | minor | beta | nightly]` +
      ` (--stable) (--notesOnly) (--automaticRelease) (--branch)`)
   process.exit(1)
 }

script/release/version-bumper.js

@@ -90,6 +90,9 @@ async function nextVersion (bumpType, version) {
         break
       case 'beta':
         throw new Error('Cannot bump to beta from stable.')
+      case 'minor':
+        version = semver.inc(version, 'minor')
+        break
       case 'stable':
         version = semver.inc(version, 'patch')
         break

spec-main/version-bump-spec.ts

@@ -100,6 +100,12 @@ describe('version-bumper', () => {
       expect(next).to.equal('2.0.1')
     })
 
+    it('bumps to minor from stable', async () => {
+      const version = 'v2.0.0'
+      const next = await nextVersion('minor', version)
+      expect(next).to.equal('2.1.0')
+    })
+
     it('bumps to stable from nightly', async () => {
       const version = 'v2.0.0-nightly.19950901'
       const next = await nextVersion('stable', version)