Started working on more package docs

cmd/gendocs/frame.tmpl

@@ -9,7 +9,7 @@
         <h1>UCL</h1>
         <nav>
             <a href="/">Home</a>
-            <a href="/core/">Core</a>
+            <a href="/mod/">Modules</a>
             <a href="/playground/">Playground</a>
         </nav>
     </header>

cmd/gendocs/main.go

@@ -10,6 +10,7 @@ import (
 	"html/template"
 	"log"
 	"os"
+	"path/filepath"
 )
 
 //go:embed frame.tmpl
@@ -18,13 +19,16 @@ var frameTmpl embed.FS
 func main() {
 	flag.Parse()
 
-	if flag.NArg() != 1 {
-		log.Fatalln("usage: gendocs [markdown]")
+	if flag.NArg() != 2 {
+		log.Fatalln("usage: gendocs MARKDOWN OUTFILE")
 	}
 
+	srcFile := flag.Arg(0)
+	dstFile := flag.Arg(1)
+
 	md := goldmark.New(goldmark.WithExtensions(&frontmatter.Extender{}))
 
-	mdData, err := os.ReadFile(flag.Arg(0))
+	mdData, err := os.ReadFile(srcFile)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -57,5 +61,11 @@ func main() {
 		log.Fatal(err)
 	}
 
-	os.Stdout.Write(res.Bytes())
+	destDir := filepath.Dir(dstFile)
+	if err := os.MkdirAll(destDir, 0755); err != nil {
+		log.Fatal(err)
+	}
+	if err := os.WriteFile(dstFile, res.Bytes(), 0644); err != nil {
+		log.Fatal(err)
+	}
 }