Return an error (other than 0) when ./hugo fails

Being a good OS citizen so folks can compose hugo into their tool chain.
Also helps with git bisect run.

diff --git a/main.go b/main.go
index 8ff08f7fce566ea41f6b5c2ca152bf3567916771..5f421c483d1e292e617c6d6c60d7da8c15ea4d8e 100644 (file)
--- a/main.go
+++ b/main.go
@@ -112,7 +112,7 @@ func main() {
                _, err = buildSite(config)
                if err != nil {
                        fmt.Println(err)
-                       return
+                       os.Exit(-1)
                }
                err := NewWatcher(config, *port, *server)
                if err != nil {
@@ -122,6 +122,7 @@ func main() {
 
        if _, err = buildSite(config); err != nil {
                fmt.Println(err)
+               os.Exit(-1)
        }
 
        if *server {