From 44f18c0104b7c7deb59fd5594c57cdb0c48b21f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Pra=C5=BCak?=
 <pawelprazak@users.noreply.github.com>
Date: Sun, 18 Feb 2018 17:15:56 +0100
Subject: [PATCH] main: add missing preconditions to commands (#63)

- fixed panic when a repository was not provided to:
  delete, manifest, download, vulns
---
 main.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/main.go b/main.go
index c8b43224..f4e676f2 100644
--- a/main.go
+++ b/main.go
@@ -108,6 +108,10 @@ func main() {
 			Aliases: []string{"rm"},
 			Usage:   "delete a specific reference of a repository",
 			Action: func(c *cli.Context) error {
+				if len(c.Args()) < 1 {
+					return fmt.Errorf("pass the name of the repository")
+				}
+
 				repo, ref, err := utils.GetRepoAndRef(c.Args()[0])
 				if err != nil {
 					return err
@@ -173,6 +177,10 @@ func main() {
 				},
 			},
 			Action: func(c *cli.Context) error {
+				if len(c.Args()) < 1 {
+					return fmt.Errorf("pass the name of the repository")
+				}
+
 				repo, ref, err := utils.GetRepoAndRef(c.Args()[0])
 				if err != nil {
 					return err
@@ -231,6 +239,10 @@ func main() {
 				},
 			},
 			Action: func(c *cli.Context) error {
+				if len(c.Args()) < 1 {
+					return fmt.Errorf("pass the name of the repository")
+				}
+
 				repo, ref, err := utils.GetRepoAndRef(c.Args()[0])
 				if err != nil {
 					return err
@@ -269,6 +281,9 @@ func main() {
 				if c.String("clair") == "" {
 					return errors.New("clair url cannot be empty, pass --clair")
 				}
+				if len(c.Args()) < 1 {
+					return fmt.Errorf("pass the name of the repository")
+				}
 
 				repo, ref, err := utils.GetRepoAndRef(c.Args()[0])
 				if err != nil {