chore: import upstream snapshot with attribution

misc/scripting.go

@@ -0,0 +1,71 @@
+package misc
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/robertkrimen/otto/ast"
+	"github.com/robertkrimen/otto/file"
+	"github.com/robertkrimen/otto/parser"
+)
+
+type Script struct {
+	Path   string `json:"path"`
+	Title  string `json:"title"`
+	Code   string `json:"code"`
+	Active bool   `json:"active"`
+}
+
+type ConfigMapScript struct {
+	Title  string `json:"title"`
+	Code   string `json:"code"`
+	Active bool   `json:"active"`
+}
+
+func (s *Script) ConfigMap() ConfigMapScript {
+	return ConfigMapScript{
+		Title:  s.Title,
+		Code:   s.Code,
+		Active: s.Active,
+	}
+}
+
+func ReadScriptFile(path string) (script *Script, err error) {
+	filename := filepath.Base(path)
+	var body []byte
+	body, err = os.ReadFile(path)
+	if err != nil {
+		return
+	}
+	content := string(body)
+
+	var program *ast.Program
+	program, err = parser.ParseFile(nil, filename, content, parser.StoreComments)
+	if err != nil {
+		return
+	}
+
+	var title string
+	var titleIsSet bool
+	code := content
+
+	var idx0 file.Idx
+	for node, comments := range program.Comments {
+		if (titleIsSet && node.Idx0() > idx0) || len(comments) == 0 {
+			continue
+		}
+
+		idx0 = node.Idx0()
+		title = comments[0].Text
+		titleIsSet = true
+	}
+
+	script = &Script{
+		Path:   path,
+		Title:  title,
+		Code:   code,
+		Active: false,
+	}
+
+	return
+}