devops: support publishing @next version with manual trigger (#162)

Author: dgozman

.github/workflows/publish.yml

@@ -1,5 +1,6 @@
 name: Publish NPM
 on:
+  workflow_dispatch:
   release:
     types: [published]
 jobs:
@@ -18,4 +19,11 @@ jobs:
       - name: Update npm
         run: npm install -g npm@latest
       - run: npm ci
-      - run: npm publish
+      - name: Publish release to NPM
+        if: github.event_name == 'release'
+        run: npm publish
+      - name: Publish @next to NPM
+        if: github.event_name == 'workflow_dispatch'
+        run: |
+          node utils/update_canary_version.js
+      # npm publish --tag=next

utils/update_canary_version.js

@@ -0,0 +1,31 @@
+#!/usr/bin/env node
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed 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.
+ */
+
+const fs = require('fs');
+const path = require('path');
+const { execSync } = require('child_process');
+
+const timestamp = execSync('git show -s --format=%ct HEAD', {
+  stdio: ['ignore', 'pipe', 'ignore']
+}).toString('utf8').trim();
+
+const packageJSON = require('../package.json');
+const newVersion = `${packageJSON.version}-alpha-${timestamp}000`;
+console.log('Setting version to ' + newVersion);
+
+packageJSON.version = newVersion;
+fs.writeFileSync(path.join(__dirname, '../package.json'), JSON.stringify(packageJSON, null, 2) + '\n');