[WIP] Update to Go 1.20 and React with line numbers

.gitattributes

@@ -0,0 +1,7 @@
+playground/go.sum linguist-generated
+playground/internal/cmd/precompile/go.sum linguist-generated
+
+**/*.a.js linguist-generated
+playground/playground.js linguist-generated
+
+playground/internal/imports/zstdlib.go linguist-generated

.github/workflows/ci.yaml

@@ -0,0 +1,96 @@
+name: CI
+
+on:
+  push:
+    branches: [ "*" ]
+  pull_request:
+    branches: [ "*" ]
+
+permissions:
+  contents: read
+  pull-requests: read
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  GO_VERSION: 1.19.13
+  NODE_VERSION: 18
+  GOLANGCI_VERSION: v1.53.3
+  SOURCE_MAP_SUPPORT: true
+  GOPATH: ${{ github.workspace }}/go
+  GOPHERJS_PATH: ${{ github.workspace }}/go/src/github.com/${{ github.repository }}
+
+jobs:
+  lint:
+    name: Lint Checks
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: ${{ env.GOPHERJS_PATH }}
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+      - name: Install golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          working-directory: ${{ env.GOPHERJS_PATH }}
+          version: ${{ env.GOLANGCI_VERSION }}
+          only-new-issues: true
+      - name: Check go.mod
+        working-directory: ${{ env.GOPHERJS_PATH }}
+        run: go mod tidy && git diff --exit-code
+      - name: Check natives build tags
+        working-directory: ${{ env.GOPHERJS_PATH }}
+        run: |
+          echo "Any following packages have at least one file that is missing //go:build js"
+          diff -u <(echo -n) <(go list ./compiler/natives/src/...)
+
+  go_tests:
+    name: Go Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: ${{ env.GOPHERJS_PATH }}
+      - name: Copy Actions
+        run: cp -r ${{ env.GOPHERJS_PATH }}/.github .
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+            go-version: ${{ env.GO_VERSION }}
+      - name: Setup Go Environment
+        working-directory: ${{ env.GOPHERJS_PATH }}
+        shell: bash
+        run: echo "GOROOT=$(go env GOROOT)" >> $GITHUB_ENV
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+            node-version: ${{ env.NODE_VERSION }}
+      - name: Install Node.js for Linux
+        working-directory: ${{ env.GOPHERJS_PATH }}
+        shell: bash
+        # Install required Node.js packages including optional (node-syscall).
+        run: |
+            npm install --include=optional --no-package-lock
+      - name: Setup Node.js Environment
+        working-directory: ${{ env.GOPHERJS_PATH }}
+        shell: bash
+        # Make nodejs able to require installed modules from any working path.
+        run: echo "NODE_PATH=$(npm root)" >> $GITHUB_ENV
+      - name: Install GopherJS
+        working-directory: ${{ env.GOPHERJS_PATH }}
+        shell: bash
+        run: go install -v
+      - name: Setup information
+        shell: bash
+        run: |
+            echo ::notice::go version: $(go version)
+            echo ::notice::node version: $(node -v)
+            echo ::notice::npm version: $(npm -v)
+            echo ::notice::gopherjs version: $(gopherjs version)
+      - name: Run Tests
+        working-directory: ${{ env.GOPHERJS_PATH }}
+        run: go test -v -race ./...

.gitignore

@@ -1 +1,3 @@
 /playground/playground.js.map
+/playground/compile.js.map
+.DS_Store

go.work

@@ -0,0 +1,7 @@
+go 1.20
+
+use (
+	./playground
+	./playground/internal/cmd/compile
+	./playground/internal/cmd/precompile
+)