use hardlink instead of full copy for files other than Markdown or HTML

generate/generate.go

@@ -27,7 +27,7 @@ func clean() {
 }
 
 func stage1() {
-	goutil.Copy("stage0", "stage1")
+	goutil.CopyDirsLinkFiles("stage0", "stage1")
 	mdfiles := goutil.RecListFilesExt("stage1", ".md")
 	htmlfrags := goutil.RecListFilesExt("stage1", ".html")
 	splitter.SplitAll(append(mdfiles, htmlfrags...))
@@ -43,7 +43,7 @@ func blogs() []string {
 }
 
 func stage2() {
-	goutil.Copy("stage1", "stage2")
+	goutil.CopyDirsLinkFiles("stage1", "stage2")
 	site.Generate()
 	for _, blogdir := range blogs() {
 		blog.Generate(blogdir)

go.mod

@@ -2,7 +2,7 @@ module git.gutmet.org/wombat.git
 
 require (
 	git.gutmet.org/finstr.git v0.0.0-20190103161247-f1cd2d363522
-	git.gutmet.org/goutil.git v0.0.0-20190219232751-e251b8616e36
+	git.gutmet.org/goutil.git v0.0.0-20190727202444-1a369915ff2f
 	git.gutmet.org/simpleserver.git v0.0.0-20181209151100-b298451c1f40
 	github.com/russross/blackfriday/v2 v2.0.1
 	github.com/shurcooL/sanitized_anchor_name v0.0.0-20170918181015-86672fcb3f95 // indirect

site/site.go

@@ -120,6 +120,7 @@ func completePage(path string, t *template.Template, style string) {
 		fmt.Println(err)
 	}
 	destination := strings.Replace(path, "stage1", "stage2", 1)
+	os.Remove(destination) // remove hardlink before writing
 	goutil.WriteFile(destination, buf.String())
 }
 

splitter/splitter.go

@@ -60,6 +60,7 @@ func split(filename string) {
 	}
 	if len(strings.TrimSpace(metadata)) > 0 {
 		writeMetadata(filename, metadata)
+		os.Remove(filename) // remove hardlink before writing
 		goutil.WriteFile(filename, data)
 	}
 }