Create render to walk and render templates

spike/review/reinvent/ezmded/ui/render.go

@@ -0,0 +1,80 @@
+package main
+
+import (
+	"html/template"
+	"log"
+	"os"
+	"path"
+	"strings"
+)
+
+func main() {
+	always := []string{}
+	if err := recursePwd(func(p string) error {
+		switch path.Ext(p) {
+		case ".ctmpl":
+			if path.Base(p)[0] == '_' {
+				always = append(always, p)
+			}
+		}
+		return nil
+	}); err != nil {
+		panic(err)
+	}
+	t := func(p ...string) *template.Template {
+		p = append(always, p...)
+		oneT, err := template.ParseFiles(p...)
+		if err != nil {
+			panic(err)
+		}
+		return oneT
+	}
+	data := map[string]interface{}{
+		"Title":  "my title here",
+		"ID":     "my-id-here",
+		"PID":    "my-pid-here",
+		"PTitle": "my parent title here",
+	}
+	if err := recursePwd(func(p string) error {
+		switch path.Ext(p) {
+		case ".ctmpl":
+			target := path.Join(path.Dir(p), "."+path.Base(p)+".html")
+			defer log.Printf("rendering ...%s as %s", path.Join(path.Base(path.Dir(p)), path.Base(p)), target)
+			f, err := os.Create(path.Join(path.Dir(p), "."+path.Base(p)+".html"))
+			if err != nil {
+				return err
+			}
+			defer f.Close()
+			return t(p).Execute(f, data)
+		}
+		return nil
+	}); err != nil {
+		panic(err)
+	}
+}
+
+func recursePwd(foo func(string) error) error {
+	wd, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+	return recurseD(wd, foo)
+}
+
+func recurseD(d string, foo func(string) error) error {
+	entries, err := os.ReadDir(d)
+	if err != nil {
+		return err
+	}
+	for _, entry := range entries {
+		if entry.IsDir() {
+			if err := recurseD(path.Join(d, entry.Name()), foo); err != nil {
+				return err
+			}
+		} else if strings.HasPrefix(entry.Name(), ".") {
+		} else if err := foo(path.Join(d, entry.Name())); err != nil {
+			return err
+		}
+	}
+	return nil
+}