Merge pull request rust-lang#320 from TomasHubelbauer/292

Implement checking changelog for corresponding version entry

Author: nrc

cmd/check-version.js

@@ -0,0 +1,5 @@
+const { version } = require('../package');
+const changelog = String(require('fs').readFileSync('CHANGELOG.md')).split('\n');
+if (!changelog.find(line => line.startsWith('### ' + version))) {
+  throw new Error(`The package.json version ${version} does not seem to have a matching heading in CHANGELOG.json`);
+}

package.json

@@ -39,10 +39,11 @@
     ],
     "main": "./out/src/extension",
     "scripts": {
-        "vscode:prepublish": "npm run lint && npm run compile",
+        "vscode:prepublish": "npm run check:version && npm run lint && npm run compile",
         "compile": "tsc -p ./",
         "watch": "tsc -watch -p ./",
         "lint": "tslint --config ./tslint.json './src/**/*.ts'",
+        "check:version": "node cmd/check-version.js",
         "postinstall": "node ./node_modules/vscode/bin/install"
     },
     "dependencies": {