Added a script to update the versions.

Signed-off-by: Akos Kitta <kittaakos@typefox.io>

README.md

@@ -87,6 +87,38 @@ This project is built on [GitHub Actions](https://github.com/bcmi-labs/arduino-e
     git push origin 1.2.3
    ```
 
+### Creating a GH release
+This section guides you through how to create a new release. Let's assume the current version is `0.1.3` and you want to release `0.2.0`.
+
+ - Make sure the `master` state represents what you want to release and you're on `master`.
+ - Prepare a release-candidate build on a branch:
+```bash
+git branch 0.2.0-rc \
+&& git checkout 0.2.0-rc
+```
+ - Bump up the version number. It must be a valid [semver](https://semver.org/) and must be greater than the current one:
+```bash
+yarn update:version 0.2.0
+```
+ - This should generate multiple outgoing changes with the version update.
+ - Commit your changes and push to the remote:
+```bash
+git add . \
+&& git commit -s -m "Updated versions to 0.2.0" \
+&& git push
+```
+ - Create the GH PR the workflow starts automatically.
+ - Once you're happy with the RC, merge the changes to the `master`.
+ - Create a tag and push it:
+```bash
+git tag -a 0.2.0 -m "0.2.0" \
+&& git push origin 0.2.0
+```
+ - The release build starts automatically and uploads the artifacts with the changelog to the Pro IDE [release page](https://github.com/arduino/arduino-pro-ide/releases).
+ - If you do not want to release the `EXE` and `MSI` installers, wipe them manually.
+ - If you do not like the generated changelog, modify it and update the GH release.
+
+
 ### FAQ
 
  - Q: Can I manually change the version of the [`arduino-cli`](https://github.com/arduino/arduino-cli/) used by the IDE?

package.json

@@ -14,6 +14,7 @@
     "cross-env": "^7.0.2",
     "lerna": "^3.20.2",
     "rimraf": "^2.6.1",
+    "semver": "^7.3.2",
     "tslint": "^5.5.0",
     "typescript": "^3.9.2"
   },
@@ -24,7 +25,8 @@
     "start": "yarn --cwd ./electron-app start",
     "watch": "lerna run watch --parallel",
     "test": "lerna run test",
-    "download:plugins": "theia download:plugins"
+    "download:plugins": "theia download:plugins",
+    "update:version": "node ./scripts/update-version.js"
   },
   "workspaces": [
     "arduino-ide-extension",

scripts/update-version.js

@@ -0,0 +1,48 @@
+//@ts-check
+
+const fs = require('fs');
+const path = require('path');
+const semver = require('semver');
+
+const targetVersion = process.argv.slice(2).shift();
+const repoRootPath = path.join(__dirname, '..');
+const { version: currentVersion } = require(path.join(repoRootPath, 'package.json'));
+
+if (!targetVersion) {
+    console.error('Target version was not specified. Target version must be a valid semver. Use: `yarn update:version x.y.z` to update the versions.');
+    process.exit(1);
+}
+
+if (!semver.valid(targetVersion)) {
+    console.error(`Target version '${targetVersion}' is not a valid semver. Use: \`yarn update:version x.y.z\` to update the versions.`);
+    process.exit(1);
+}
+
+if (!semver.gt(targetVersion, currentVersion)) {
+    console.error(`Target version '${targetVersion}' must be greater than the current version '${currentVersion}.'`);
+    process.exit(1);
+}
+
+console.log(`🛠️ Updating current version from '${currentVersion}' to '${targetVersion}':`);
+for (const toUpdate of [
+    path.join(repoRootPath, 'package.json'),
+    path.join(repoRootPath, 'electron-app', 'package.json'),
+    path.join(repoRootPath, 'browser-app', 'package.json'),
+    path.join(repoRootPath, 'arduino-ide-extension', 'package.json'),
+    path.join(repoRootPath, 'arduino-debugger-extension', 'package.json') // Currently unused. The debugger functionality comes from the `cortex.debug` VS Code extension.
+]) {
+    process.stdout.write(`  Updating ${toUpdate}'...`);
+    const pkg = require(toUpdate);
+    pkg.version = targetVersion;
+    if ('dependencies' in pkg) {
+        for (const dep of Object.keys(pkg['dependencies'])) {
+            if (dep.startsWith('arduino-')) {
+                pkg['dependencies'][dep] = targetVersion;
+            }
+        }
+    }
+    fs.writeFileSync(toUpdate, JSON.stringify(pkg, null, 2) + '\n');
+    process.stdout.write(` ✅ Done.\n`);
+}
+
+console.log(`Done. The new version is '${targetVersion}' now. Commit your changes and tag the code for the release. 🚢`);