Avoid escapes in redirects.

tsv2htaccess/main.go

@@ -8,6 +8,14 @@ import (
 	"os"
 )
 
+const apacheTemplate = `
+{{/* Do not edit: generated by tsv2htaccess*/}}
+{{ range . }}
+{{- /*gotype: code.osinet.fr/fgm/go_tooling/tsv2htaccess.redirect*/ -}}
+RewriteRule ^{{ .Clean }}$	{{ .Target }}	[L,NC,NE,R=301]
+{{ end }}
+`
+
 type redirect struct {
 	Clean, Target string
 }
@@ -16,7 +24,7 @@ func main() {
 	var err error
 
 	if len(os.Args) != 4 {
-		panic(fmt.Errorf(`
+		fmt.Fprintf(os.Stderr, `
 Syntax:
 	%s source destination prefix
 
@@ -24,7 +32,8 @@ Where:
 - source		URL pairs in TSV format
 - destination	Apache .htaccess fragment 
 - prefix		Prefix to strip from source URLs in pairs
-`, os.Args[0]))
+`, os.Args[0])
+		return
 	}
 
 	source := os.Args[1]
@@ -79,7 +88,7 @@ func read(tsv io.Reader, expectedPrefix string) ([]redirect, error) {
 }
 
 func write(w io.Writer, redirects []redirect) {
-	tpl := template.Must(template.ParseFiles(`htaccess_rows.gohtml`))
+	tpl := template.Must(template.New("htaccess").Parse(apacheTemplate))
 	err := tpl.Execute(w, redirects)
 	if err != nil {
 		panic(err)