all: embed CSS and index HTML template using memfs

Previously, with direct embed, every time we change the CSS or index
template, we need to restart the "ciigo serve" command.

Using memfs make us easy to update and see the changes directly, without
restarting the server.

6 files changed, 506 insertions, 233 deletions

diff --git a/testdata/goembed/GoEmbed_test.txt b/testdata/goembed/GoEmbed_test.txt
deleted file mode 100644
index d800731..0000000
--- a/testdata/goembed/GoEmbed_test.txt
+++ /dev/null
@@ -1,131 +0,0 @@
-
-<<< default.go
-// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
-
-package mypackage
-
-import (
-	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
-)
-
-func generate_testdata_in() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in",
-		Path:        "/",
-		ContentType: "",
-		GenFuncName: "generate_testdata_in",
-	}
-	node.SetMode(0o20000000755)
-	node.SetName("/")
-	node.SetSize(0)
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
-	return node
-}
-
-func generate_testdata_in_clu() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu",
-		Path:        "/clu",
-		ContentType: "",
-		GenFuncName: "generate_testdata_in_clu",
-	}
-	node.SetMode(0o20000000755)
-	node.SetName("clu")
-	node.SetSize(0)
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
-	return node
-}
-
-func generate_testdata_in_clu_de() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu/de",
-		Path:        "/clu/de",
-		ContentType: "",
-		GenFuncName: "generate_testdata_in_clu_de",
-	}
-	node.SetMode(0o20000000755)
-	node.SetName("de")
-	node.SetSize(0)
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
-	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
-	return node
-}
-
-func generate_testdata_in_clu_de_file_html() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu/de/file.html",
-		Path:        "/clu/de/file.html",
-		ContentType: "text/html; charset=utf-8",
-		GenFuncName: "generate_testdata_in_clu_de_file_html",
-		Content:     []byte("\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x09\x3C\x68\x65\x61\x64\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x09\x09\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x09\x09\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x09\x09\x62\x6F\x64\x79\x7B\x7D\x0A\x09\x09\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x09\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x09\x3C\x62\x6F\x64\x79\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x09\x09\x09\x09\x09\x09\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x09\x09\x09\x09\x09\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x09\x09\x09\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x09\x09\x09\x09\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x09\x09\x09\x3E\x0A\x09\x09\x09\x09\x63\x69\x69\x67\x6F\x0A\x09\x09\x09\x3C\x2F\x61\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E"),
-	}
-	node.SetMode(0o644)
-	node.SetName("file.html")
-	node.SetSize(902)
-	return node
-}
-
-func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
-	var node = &memfs.Node{
-		SysPath:     "testdata/in/clu/de/markdown.html",
-		Path:        "/clu/de/markdown.html",
-		ContentType: "text/html; charset=utf-8",
-		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
-		Content:     []byte("\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x09\x3C\x68\x65\x61\x64\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x09\x09\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x09\x09\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x09\x09\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x09\x09\x62\x6F\x64\x79\x7B\x7D\x0A\x09\x09\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x09\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x09\x3C\x62\x6F\x64\x79\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x09\x09\x09\x09\x09\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x09\x09\x09\x09\x09\x09\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x09\x09\x09\x09\x09\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x09\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x09\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x09\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x09\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x09\x09\x09\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x09\x09\x09\x09\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x09\x09\x09\x3E\x0A\x09\x09\x09\x09\x63\x69\x69\x67\x6F\x0A\x09\x09\x09\x3C\x2F\x61\x3E\x0A\x09\x09\x3C\x2F\x64\x69\x76\x3E\x0A\x09\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E"),
-	}
-	node.SetMode(0o644)
-	node.SetName("markdown.html")
-	node.SetSize(790)
-	return node
-}
-
-// _memfsIn_getNode is internal function to minimize duplicate node
-// created on Node.AddChild() and on generatedPathNode.Set().
-func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
-	node = mfs.PathNodes.Get(path)
-	if node != nil {
-		return node
-	}
-	return fn()
-}
-
-func init() {
-	memfsIn = &memfs.MemFS{
-		PathNodes: memfs.NewPathNode(),
-		Opts: &memfs.Options{
-			Root:        "testdata/in",
-			MaxFileSize: 5242880,
-			Includes:    []string{
-			},
-			Excludes: []string{
-				`.*\.adoc$`,
-				`.*\.md$`,
-				`^\..*`,
-			},
-			Embed: memfs.EmbedOptions{
-				CommentHeader:  ``,
-				PackageName:    "mypackage",
-				VarName:        "memfsIn",
-				GoFileName:     "testdata/goembed/out/default.go",
-				WithoutModTime: true,
-			},
-		},
-	}
-	memfsIn.PathNodes.Set("/",
-		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
-	memfsIn.PathNodes.Set("/clu",
-		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
-	memfsIn.PathNodes.Set("/clu/de",
-		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
-	memfsIn.PathNodes.Set("/clu/de/file.html",
-		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
-	memfsIn.PathNodes.Set("/clu/de/markdown.html",
-		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
-
-	memfsIn.Root = memfsIn.PathNodes.Get("/")
-
-	var err = memfsIn.Init()
-	if err != nil {
-		panic("memfsIn: " + err.Error())
-	}
-}
diff --git a/testdata/goembed/default.go b/testdata/goembed/default.go
new file mode 100644
index 0000000..6f42697
--- /dev/null
+++ b/testdata/goembed/default.go
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
+
+package mypackage
+
+import (
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func generate_testdata_in() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in",
+		Path:        "/",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("/")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	return node
+}
+
+func generate_testdata_in_clu() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu",
+		Path:        "/clu",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("clu")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	return node
+}
+
+func generate_testdata_in_clu_de() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de",
+		Path:        "/clu/de",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu_de",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("de")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+	return node
+}
+
+func generate_testdata_in_clu_de_file_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/file.html",
+		Path:        "/clu/de/file.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_file_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("file.html")
+	node.SetSize(1002)
+	return node
+}
+
+func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/markdown.html",
+		Path:        "/clu/de/markdown.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("markdown.html")
+	node.SetSize(890)
+	return node
+}
+
+// _memfsIn_getNode is internal function to minimize duplicate node
+// created on Node.AddChild() and on generatedPathNode.Set().
+func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
+	node = mfs.PathNodes.Get(path)
+	if node != nil {
+		return node
+	}
+	return fn()
+}
+
+func init() {
+	memfsIn = &memfs.MemFS{
+		PathNodes: memfs.NewPathNode(),
+		Opts: &memfs.Options{
+			Root:        "testdata/in",
+			MaxFileSize: 5242880,
+			Includes:    []string{
+			},
+			Excludes: []string{
+				`.*\.adoc$`,
+				`.*\.md$`,
+				`^\..*`,
+			},
+			Embed: memfs.EmbedOptions{
+				CommentHeader:  `// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+`,
+				PackageName:    "mypackage",
+				VarName:        "memfsIn",
+				GoFileName:     "testdata/goembed/default.go",
+				WithoutModTime: true,
+			},
+		},
+	}
+	memfsIn.PathNodes.Set("/",
+		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
+	memfsIn.PathNodes.Set("/clu",
+		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	memfsIn.PathNodes.Set("/clu/de",
+		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	memfsIn.PathNodes.Set("/clu/de/file.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	memfsIn.PathNodes.Set("/clu/de/markdown.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+
+	memfsIn.Root = memfsIn.PathNodes.Get("/")
+
+	var err = memfsIn.Init()
+	if err != nil {
+		panic("memfsIn: " + err.Error())
+	}
+}
diff --git a/testdata/goembed/default.go.exp b/testdata/goembed/default.go.exp
new file mode 100644
index 0000000..6f42697
--- /dev/null
+++ b/testdata/goembed/default.go.exp
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
+
+package mypackage
+
+import (
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func generate_testdata_in() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in",
+		Path:        "/",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("/")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	return node
+}
+
+func generate_testdata_in_clu() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu",
+		Path:        "/clu",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("clu")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	return node
+}
+
+func generate_testdata_in_clu_de() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de",
+		Path:        "/clu/de",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu_de",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("de")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+	return node
+}
+
+func generate_testdata_in_clu_de_file_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/file.html",
+		Path:        "/clu/de/file.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_file_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("file.html")
+	node.SetSize(1002)
+	return node
+}
+
+func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/markdown.html",
+		Path:        "/clu/de/markdown.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
+		Content:     []byte("\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("markdown.html")
+	node.SetSize(890)
+	return node
+}
+
+// _memfsIn_getNode is internal function to minimize duplicate node
+// created on Node.AddChild() and on generatedPathNode.Set().
+func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
+	node = mfs.PathNodes.Get(path)
+	if node != nil {
+		return node
+	}
+	return fn()
+}
+
+func init() {
+	memfsIn = &memfs.MemFS{
+		PathNodes: memfs.NewPathNode(),
+		Opts: &memfs.Options{
+			Root:        "testdata/in",
+			MaxFileSize: 5242880,
+			Includes:    []string{
+			},
+			Excludes: []string{
+				`.*\.adoc$`,
+				`.*\.md$`,
+				`^\..*`,
+			},
+			Embed: memfs.EmbedOptions{
+				CommentHeader:  `// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2026 Shulhan <ms@kilabit.info>
+`,
+				PackageName:    "mypackage",
+				VarName:        "memfsIn",
+				GoFileName:     "testdata/goembed/default.go",
+				WithoutModTime: true,
+			},
+		},
+	}
+	memfsIn.PathNodes.Set("/",
+		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
+	memfsIn.PathNodes.Set("/clu",
+		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	memfsIn.PathNodes.Set("/clu/de",
+		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	memfsIn.PathNodes.Set("/clu/de/file.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	memfsIn.PathNodes.Set("/clu/de/markdown.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+
+	memfsIn.Root = memfsIn.PathNodes.Get("/")
+
+	var err = memfsIn.Init()
+	if err != nil {
+		panic("memfsIn: " + err.Error())
+	}
+}
diff --git a/testdata/goembed/out/.gitignore b/testdata/goembed/out/.gitignore
deleted file mode 100644
index d6b7ef3..0000000
--- a/testdata/goembed/out/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore
diff --git a/testdata/goembed/out/default.go b/testdata/goembed/out/default.go
new file mode 100644
index 0000000..0c21721
--- /dev/null
+++ b/testdata/goembed/out/default.go
@@ -0,0 +1,129 @@
+// Code generated by git.sr.ht/~shulhan/pakakeh.go/lib/memfs DO NOT EDIT.
+
+package mypackage
+
+import (
+	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+)
+
+func generate_testdata_in() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in",
+		Path:        "/",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("/")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	return node
+}
+
+func generate_testdata_in_clu() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu",
+		Path:        "/clu",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("clu")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	return node
+}
+
+func generate_testdata_in_clu_de() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de",
+		Path:        "/clu/de",
+		ContentType: "",
+		GenFuncName: "generate_testdata_in_clu_de",
+	}
+	node.SetMode(0o20000000755)
+	node.SetName("de")
+	node.SetSize(0)
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	node.AddChild(_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+	return node
+}
+
+func generate_testdata_in_clu_de_file_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/file.html",
+		Path:        "/clu/de/file.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_file_html",
+		Content:     []byte("\x0A\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x20\x20\x3C\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x20\x20\x62\x6F\x64\x79\x7B\x7D\x0A\x20\x20\x20\x20\x3C\x2F\x73\x74\x79\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x68\x65\x61\x64\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x64\x75\x6D\x6D\x79\x3C\x2F\x68\x31\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x63\x6F\x6E\x74\x65\x6E\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x3C\x64\x69\x76\x20\x69\x64\x3D\x22\x66\x6F\x6F\x74\x65\x72\x2D\x74\x65\x78\x74\x22\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("file.html")
+	node.SetSize(1003)
+	return node
+}
+
+func generate_testdata_in_clu_de_markdown_html() *memfs.Node {
+	var node = &memfs.Node{
+		SysPath:     "testdata/in/clu/de/markdown.html",
+		Path:        "/clu/de/markdown.html",
+		ContentType: "text/html; charset=utf-8",
+		GenFuncName: "generate_testdata_in_clu_de_markdown_html",
+		Content:     []byte("\x0A\x0A\x0A\x3C\x21\x44\x4F\x43\x54\x59\x50\x45\x20\x68\x74\x6D\x6C\x3E\x0A\x3C\x68\x74\x6D\x6C\x3E\x0A\x20\x20\x3C\x68\x65\x61\x64\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x68\x74\x74\x70\x2D\x65\x71\x75\x69\x76\x3D\x22\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x74\x65\x78\x74\x2F\x68\x74\x6D\x6C\x3B\x20\x63\x68\x61\x72\x73\x65\x74\x3D\x75\x74\x66\x2D\x38\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x76\x69\x65\x77\x70\x6F\x72\x74\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x77\x69\x64\x74\x68\x3D\x64\x65\x76\x69\x63\x65\x2D\x77\x69\x64\x74\x68\x2C\x20\x69\x6E\x69\x74\x69\x61\x6C\x2D\x73\x63\x61\x6C\x65\x3D\x31\x22\x3E\x0A\x20\x20\x20\x20\x3C\x6D\x65\x74\x61\x20\x6E\x61\x6D\x65\x3D\x22\x74\x68\x65\x6D\x65\x2D\x63\x6F\x6C\x6F\x72\x22\x20\x63\x6F\x6E\x74\x65\x6E\x74\x3D\x22\x23\x33\x37\x35\x45\x41\x42\x22\x3E\x0A\x20\x20\x20\x20\x3C\x74\x69\x74\x6C\x65\x3E\x3C\x2F\x74\x69\x74\x6C\x65\x3E\x0A\x20\x20\x3C\x2F\x68\x65\x61\x64\x3E\x0A\x20\x20\x3C\x62\x6F\x64\x79\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x62\x61\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x74\x6F\x70\x2D\x68\x65\x61\x64\x69\x6E\x67\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x61\x20\x68\x72\x65\x66\x3D\x22\x2F\x22\x3E\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x6D\x65\x6E\x75\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x66\x6F\x72\x6D\x20\x63\x6C\x61\x73\x73\x3D\x22\x69\x74\x65\x6D\x22\x20\x61\x63\x74\x69\x6F\x6E\x3D\x22\x2F\x5F\x69\x6E\x74\x65\x72\x6E\x61\x6C\x2F\x73\x65\x61\x72\x63\x68\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x69\x6E\x70\x75\x74\x20\x74\x79\x70\x65\x3D\x22\x74\x65\x78\x74\x22\x20\x6E\x61\x6D\x65\x3D\x22\x71\x22\x20\x70\x6C\x61\x63\x65\x68\x6F\x6C\x64\x65\x72\x3D\x22\x53\x65\x61\x72\x63\x68\x22\x20\x2F\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x66\x6F\x72\x6D\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x70\x61\x67\x65\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x63\x6F\x6E\x74\x61\x69\x6E\x65\x72\x22\x3E\x0A\x3C\x68\x31\x3E\x6D\x61\x72\x6B\x64\x6F\x77\x6E\x3C\x2F\x68\x31\x3E\x0A\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x20\x20\x3C\x64\x69\x76\x20\x63\x6C\x61\x73\x73\x3D\x22\x66\x6F\x6F\x74\x65\x72\x22\x3E\x0A\x20\x20\x20\x20\x20\x20\x50\x6F\x77\x65\x72\x65\x64\x20\x62\x79\x20\x3C\x61\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x68\x72\x65\x66\x3D\x22\x68\x74\x74\x70\x73\x3A\x2F\x2F\x67\x69\x74\x2E\x73\x72\x2E\x68\x74\x2F\x7E\x73\x68\x75\x6C\x68\x61\x6E\x2F\x63\x69\x69\x67\x6F\x22\x0A\x20\x20\x20\x20\x20\x20\x3E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x63\x69\x69\x67\x6F\x0A\x20\x20\x20\x20\x20\x20\x3C\x2F\x61\x3E\x0A\x20\x20\x20\x20\x3C\x2F\x64\x69\x76\x3E\x0A\x20\x20\x3C\x2F\x62\x6F\x64\x79\x3E\x0A\x3C\x2F\x68\x74\x6D\x6C\x3E\x0A\x0A"),
+	}
+	node.SetMode(0o644)
+	node.SetName("markdown.html")
+	node.SetSize(855)
+	return node
+}
+
+// _memfsIn_getNode is internal function to minimize duplicate node
+// created on Node.AddChild() and on generatedPathNode.Set().
+func _memfsIn_getNode(mfs *memfs.MemFS, path string, fn func() *memfs.Node) (node *memfs.Node) {
+	node = mfs.PathNodes.Get(path)
+	if node != nil {
+		return node
+	}
+	return fn()
+}
+
+func init() {
+	memfsIn = &memfs.MemFS{
+		PathNodes: memfs.NewPathNode(),
+		Opts: &memfs.Options{
+			Root:        "testdata/in",
+			MaxFileSize: 5242880,
+			Includes:    []string{
+			},
+			Excludes: []string{
+				`.*\.adoc$`,
+				`.*\.md$`,
+				`^\..*`,
+			},
+			Embed: memfs.EmbedOptions{
+				CommentHeader:  ``,
+				PackageName:    "mypackage",
+				VarName:        "memfsIn",
+				GoFileName:     "testdata/goembed/out/default.go",
+				WithoutModTime: true,
+			},
+		},
+	}
+	memfsIn.PathNodes.Set("/",
+		_memfsIn_getNode(memfsIn, "/", generate_testdata_in))
+	memfsIn.PathNodes.Set("/clu",
+		_memfsIn_getNode(memfsIn, "/clu", generate_testdata_in_clu))
+	memfsIn.PathNodes.Set("/clu/de",
+		_memfsIn_getNode(memfsIn, "/clu/de", generate_testdata_in_clu_de))
+	memfsIn.PathNodes.Set("/clu/de/file.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/file.html", generate_testdata_in_clu_de_file_html))
+	memfsIn.PathNodes.Set("/clu/de/markdown.html",
+		_memfsIn_getNode(memfsIn, "/clu/de/markdown.html", generate_testdata_in_clu_de_markdown_html))
+
+	memfsIn.Root = memfsIn.PathNodes.Get("/")
+
+	var err = memfsIn.Init()
+	if err != nil {
+		panic("memfsIn: " + err.Error())
+	}
+}
diff --git a/testdata/watcher_test.txt b/testdata/watcher_test.txt
index df24c48..9c41cec 100644
--- a/testdata/watcher_test.txt
+++ b/testdata/watcher_test.txt
@@ -1,34 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: 2023 Shulhan <ms@kilabit.info>
+
 >>> create.adoc
 = watch create
 :generator!:
 
 <<< create.adoc.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<title>watch create</title>
-		<style>
-		body{}
-		</style>
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">watch create</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <title>watch create</title>
+    <style>
+    body{}
+    </style>
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">watch create</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <div id="header">
 <h1>watch create</h1>
 </div>
@@ -45,31 +50,33 @@
 Hello, body.
 
 <<< update.adoc.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<meta name="keywords" content="ciigo,asciidoc">
-		<title>watch updated</title>
-		<link rel="stylesheet" href="/path/to/style.css">
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">watch updated</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <meta name="keywords" content="ciigo,asciidoc">
+    <title>watch updated</title>
+    <link rel="stylesheet" href="/path/to/style.css">
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">watch updated</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <div id="header">
 <h1>watch updated</h1>
 </div>
@@ -87,37 +94,39 @@ Title: a title
 # watch create
 
 <<< create.md.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<title>a title</title>
-		<style>
-		body{}
-		</style>
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">a title</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <title>a title</title>
+    <style>
+    body{}
+    </style>
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">a title</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <h1>watch create</h1>
 
-			</div>
-		</div>
-		<div class="footer">
+      </div>
+    </div>
+    <div class="footer">
 
 >>> update.md
 ---
@@ -128,33 +137,35 @@ keywords: ciigo,markdown
 # watch updated
 
 <<< update.md.html
+
+
 <!DOCTYPE html>
 <html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-		<meta name="viewport" content="width=device-width, initial-scale=1">
-		<meta name="theme-color" content="#375EAB">
-		<meta name="keywords" content="ciigo,markdown">
-		<title>A new title</title>
-		<link rel="stylesheet" href="/path/to/style.css">
-	</head>
-	<body>
-		<div class="topbar">
-			<div class="container">
-				<div class="top-heading">
-					<a href="/">A new title</a>
-				</div>
-				<div class="menu">
-					<form class="item" action="/_internal/search">
-						<input type="text" name="q" placeholder="Search" />
-					</form>
-				</div>
-			</div>
-		</div>
-		<div class="page">
-			<div class="container">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#375EAB">
+    <meta name="keywords" content="ciigo,markdown">
+    <title>A new title</title>
+    <link rel="stylesheet" href="/path/to/style.css">
+  </head>
+  <body>
+    <div class="topbar">
+      <div class="container">
+        <div class="top-heading">
+          <a href="/">A new title</a>
+        </div>
+        <div class="menu">
+          <form class="item" action="/_internal/search">
+            <input type="text" name="q" placeholder="Search" />
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page">
+      <div class="container">
 <h1>watch updated</h1>
 
-			</div>
-		</div>
-		<div class="footer">
+      </div>
+    </div>
+    <div class="footer">