Print usage in git-lfs-authenticate

1 files changed, 4 insertions, 2 deletions

diff --git a/cmd/git-lfs-authenticate/main.go b/cmd/git-lfs-authenticate/main.go
index dd39606..5a5b760 100644
--- a/cmd/git-lfs-authenticate/main.go
+++ b/cmd/git-lfs-authenticate/main.go
@@ -106,6 +106,8 @@ func wipe(b []byte) {
         }
 }
 
+const usage = "Usage: git-lfs-authenticate <REPO> <OPERATION (upload/download)>"
+
 func main() {
         // Even though not explicitly described in the Git LFS documentation, the
         // git-lfs-authenticate command is expected to either exit succesfully with
@@ -118,13 +120,13 @@ func main() {
         logger := newLogger(reqID)
 
         if len(os.Args) != 3 {
-                die("expected 2 arguments (path, operation), got %d", len(os.Args)-1)
+                die(usage)
         }
 
         repo := strings.TrimPrefix(strings.TrimSuffix(os.Args[1], ".git"), "/")
         operation := os.Args[2]
         if operation != "download" && operation != "upload" {
-                die("expected operation to be upload or download, got %s", operation)
+                die(usage)
         }
 
         repoHRefBaseStr := os.Getenv("REPO_HREF_BASE")