fix links

repo.go

@@ -11,27 +11,74 @@ import (
 	"github.com/russross/blackfriday"
 )
 
+// memory usage optimizations
+const (
+	emtyStr  = ""
+	git      = "git"
+	checkout = "checkout"
+	force    = "-f"
+	pull     = "pull"
+
+	// options
+	readmePath = "./README.md"
+	tplPath    = "tmpl/tmpl.html"
+	idxPath    = "tmpl/index.html"
+
+	bfHTMLRendererOpts = 0 |
+		blackfriday.HTML_USE_XHTML |
+		blackfriday.HTML_USE_SMARTYPANTS |
+		blackfriday.HTML_SMARTYPANTS_FRACTIONS |
+		blackfriday.HTML_SMARTYPANTS_DASHES |
+		blackfriday.HTML_SMARTYPANTS_LATEX_DASHES
+
+	bfMDOpts = 0 |
+		blackfriday.EXTENSION_NO_INTRA_EMPHASIS |
+		blackfriday.EXTENSION_TABLES |
+		blackfriday.EXTENSION_FENCED_CODE |
+		blackfriday.EXTENSION_AUTOLINK |
+		blackfriday.EXTENSION_STRIKETHROUGH |
+		blackfriday.EXTENSION_SPACE_HEADERS |
+		blackfriday.EXTENSION_HEADER_IDS |
+		blackfriday.EXTENSION_BACKSLASH_LINE_BREAK |
+		blackfriday.EXTENSION_DEFINITION_LISTS |
+		blackfriday.EXTENSION_AUTO_HEADER_IDS
+)
+
+var (
+	doneResp = []byte("Done!\n")
+)
+
 type content struct {
 	Body string
 }
 
 func generateHTML() {
 	// Update repo
-	exec.Command("git", "checkout", "-f").Output()
-	exec.Command("git", "pull").Output()
+	exec.Command(git, checkout, force).Output()
+	exec.Command(git, pull).Output()
 
-	input, _ := ioutil.ReadFile("./README.md")
-	body := string(blackfriday.MarkdownCommon(input))
+	input, _ := ioutil.ReadFile(readmePath)
+	body := string(
+		blackfriday.Markdown(
+			input,
+			blackfriday.HtmlRenderer(
+				bfHTMLRendererOpts,
+				emtyStr,
+				emtyStr,
+			),
+			bfMDOpts,
+		),
+	)
 	c := &content{Body: body}
 
-	t := template.Must(template.ParseFiles("tmpl/tmpl.html"))
-	f, _ := os.Create("tmpl/index.html")
+	t := template.Must(template.ParseFiles(tplPath))
+	f, _ := os.Create(idxPath)
 	t.Execute(f, c)
 }
 
 func hookHandler(w http.ResponseWriter, r *http.Request) {
 	go generateHTML()
-	w.Write([]byte("Done!\n"))
+	w.Write(doneResp)
 }
 
 func main() {