Setup CI and support manifest v3

.github/workflows/build.yml

@@ -0,0 +1,49 @@
+name: Build extension
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  build-and-release:
+    name: Build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [ firefox, chrome ]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build extension
+        run: TARGET=${{ matrix.target }} npm run build
+
+      - id: prepare_zip
+        name: Prepare ZIP
+        run: |
+          VERSION=$(node -e "console.log(require('./dist/${{ matrix.target }}/manifest.json').version)")
+          TIMESTAMP=$(git show -s --format=%cd --date=format:%Y-%m-%dT%H-%M-%S $GITHUB_SHA)
+          COMMIT_HASH=$(echo "$GITHUB_SHA" | cut -c1-7)
+          ZIP_NAME="OpenSwitchMaps-${{ matrix.target }}-${VERSION}-${TIMESTAMP}-${COMMIT_HASH}"
+          cd dist/${{ matrix.target }} && zip -r "../../$ZIP_NAME.zip" .
+          echo "zip_name=$ZIP_NAME" >> $GITHUB_OUTPUT
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Upload ZIP artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.prepare_zip.outputs.zip_name }}
+          path: ${{ steps.prepare_zip.outputs.zip_name }}.zip

.github/workflows/publish_release.yml

@@ -0,0 +1,52 @@
+name: Build and publish extension release
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build-and-release:
+    name: Build and publish
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [ firefox, chrome ]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build extension
+        run: TARGET=${{ matrix.target }} npm run build
+
+      - id: prepare_zip
+        name: Prepare ZIP
+        run: |
+          VERSION=$(node -e "console.log(require('./dist/${{ matrix.target }}/manifest.json').version)")
+          TIMESTAMP=$(git show -s --format=%cd --date=format:%Y-%m-%dT%H-%M-%S $GITHUB_SHA)
+          COMMIT_HASH=$(echo "$GITHUB_SHA" | cut -c1-7)
+          ZIP_NAME="OpenSwitchMaps-${{ matrix.target }}-${VERSION}-${TIMESTAMP}-${COMMIT_HASH}"
+          cd dist/${{ matrix.target }} && zip -r "../../$ZIP_NAME.zip" .
+          echo "zip_name=$ZIP_NAME" >> $GITHUB_OUTPUT
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Create release
+        run: |
+          TAG="${{ steps.prepare_zip.outputs.version }}"
+          ZIP="${{ steps.prepare_zip.outputs.zip_name }}.zip"
+          if gh release view "$TAG" >/dev/null 2>&1; then
+            echo "Release $TAG exists, uploading asset..."
+            gh release upload "$TAG" "$ZIP" --clobber
+          else
+            echo "Release $TAG not found, creating..."
+            gh release create "$TAG" "$ZIP" --title "$TAG" --notes "Automated release created by CI for $TAG."
+          fi
+        env:
+          GH_TOKEN: ${{ github.token }}

.gitignore

@@ -2,3 +2,4 @@
 /.parcel-cache/
 /dist/
 /node_modules/
+/src/manifest.json

README.md

@@ -16,11 +16,11 @@ Greatly contributed by jazzzz. Thanks!
 + [Chrome webstore](https://chrome.google.com/webstore/detail/openswitchmaps/cfkddjlocfecchnemnnmmpdjcohgmkij)
 + [Firefox addon center](https://addons.mozilla.org/firefox/addon/openswitchmaps/)
 ### from source code
-This extention uses Node.js
+This extension uses Node.js
 1. Install Node.js
-1. Install the dependencies: npm install
-1. Build the extension: npm run build
-1. The extension is built in the `dist` directory
+1. Install the dependencies: `npm install`
+1. Build the extension: `TARGET=firefox npm run build` (or `TARGET=chrome npm run build`)
+1. The extension is built in the `dist/firefox` directory
 1. Add to your Chrome/Firefox 
 
 ## How to use