add ci for golang code blocks in markdown

Author: ysmood

.github/workflows/test.yml

@@ -0,0 +1,27 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - '**'
+
+  pull_request:
+
+  schedule:
+    - cron: '17 5 * * *'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.18
+
+      - uses: actions/checkout@v2
+
+      - run: |
+          go get -u
+          go mod tidy
+          go test

check_test.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"testing"
+
+	_ "github.com/go-rod/rod"
+	"github.com/go-rod/rod/lib/utils"
+	"github.com/ysmood/got"
+)
+
+func TestCheckCode(t *testing.T) {
+	g := got.T(t)
+
+	g.E(os.RemoveAll("tmp"))
+
+	g.E(filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
+		g.E(err)
+
+		if info.IsDir() || path[0] == '.' || strings.HasPrefix(path, "i18n") || filepath.Ext(path) != ".md" {
+			return nil
+		}
+
+		b, err := os.ReadFile(path)
+		g.E(err)
+		return checkGoCode(g, path, string(b))
+	}))
+
+	defer func() {
+		if e := recover(); e != nil {
+			t.Error(e)
+		}
+	}()
+
+	utils.ExecLine(false, "go run golang.org/x/tools/cmd/goimports@latest -w tmp")
+	utils.ExecLine(false, "go run github.com/ysmood/golangci-lint@latest")
+}
+
+var count = 0
+
+func checkGoCode(g got.G, path, body string) error {
+	reg := regexp.MustCompile("(?s)```go\r?\n(.+?)```")
+
+	for _, m := range reg.FindAllStringSubmatch(body, -1) {
+		code := strings.TrimSpace(m[1])
+		if strings.HasPrefix(code, "package ") {
+		} else if strings.Contains(code, "func ") {
+			code = "package main\n" + vars(code) + code
+		} else {
+			code = "package main\n" + vars(code) + "func main() {\n" + code + "\n}"
+		}
+		p := filepath.FromSlash(fmt.Sprintf("tmp/code-check/c%03d/main.go", count))
+		count++
+
+		code = "// Source markdown file: " + path + "\n\n" + code
+
+		g.WriteFile(p, []byte(code))
+	}
+
+	return nil
+}
+
+func vars(code string) string {
+	vars := ""
+	if strings.Contains(code, "page.") && !strings.Contains(code, "page :=") {
+		vars += "var page *rod.Page\n"
+	}
+	if strings.Contains(code, "browser.") && !strings.Contains(code, "browser :=") {
+		vars += "var browser *rod.Browser\n"
+	}
+	return vars
+}

go.mod

@@ -1,3 +1,14 @@
 module github.com/go-rod/go-rod.github.io
 
 go 1.17
+
+require (
+	github.com/go-rod/rod v0.107.3
+	github.com/ysmood/got v0.31.2
+)
+
+require (
+	github.com/ysmood/goob v0.4.0 // indirect
+	github.com/ysmood/gson v0.7.1 // indirect
+	github.com/ysmood/leakless v0.7.0 // indirect
+)

go.sum

@@ -0,0 +1,12 @@
+github.com/go-rod/rod v0.107.3 h1:s+auNxQW4CTV2DhZ8S6ooQ7CXED4xLJBZPvZTDFA4CA=
+github.com/go-rod/rod v0.107.3/go.mod h1:4SqYRUrcc4dSr9iT36YRZ4hdUAPg3A0O8RhxAMh0eCQ=
+github.com/ysmood/goob v0.4.0 h1:HsxXhyLBeGzWXnqVKtmT9qM7EuVs/XOgkX7T6r1o1AQ=
+github.com/ysmood/goob v0.4.0/go.mod h1:u6yx7ZhS4Exf2MwciFr6nIM8knHQIE22lFpWHnfql18=
+github.com/ysmood/got v0.31.2 h1:+aNBkkXrVqZ0UJfeiOfuGbKq3kiJarjNl371Nxz6zLA=
+github.com/ysmood/got v0.31.2/go.mod h1:pE1l4LOwOBhQg6A/8IAatkGp7uZjnalzrZolnlhhMgY=
+github.com/ysmood/gotrace v0.6.0 h1:SyI1d4jclswLhg7SWTL6os3L1WOKeNn/ZtzVQF8QmdY=
+github.com/ysmood/gotrace v0.6.0/go.mod h1:TzhIG7nHDry5//eYZDYcTzuJLYQIkykJzCRIo4/dzQM=
+github.com/ysmood/gson v0.7.1 h1:zKL2MTGtynxdBdlZjyGsvEOZ7dkxaY5TH6QhAbTgz0Q=
+github.com/ysmood/gson v0.7.1/go.mod h1:3Kzs5zDl21g5F/BlLTNcuAGAYLKt2lV5G8D1zF3RNmg=
+github.com/ysmood/leakless v0.7.0 h1:XCGdaPExyoreoQd+H5qgxM3ReNbSPFsEXpSKwbXbwQw=
+github.com/ysmood/leakless v0.7.0/go.mod h1:R8iAXPRaG97QJwqxs74RdwzcRHT1SWCGTNqY8q0JvMQ=