feat: flag to cd to support bundle dir on starting shell (#176)

Signed-off-by: Evans Mungai <evans@replicated.com>

Author: banjoh

cli/shell.go

@@ -153,8 +153,15 @@ func ShellCmd() *cobra.Command {
 				fmt.Printf("sbctl shell exited\n")
 			}()
 
+			cmds := []string{
+				fmt.Sprintf("export KUBECONFIG=%s", kubeConfig),
+			}
+			if v.GetBool("cd-bundle") {
+				cmds = append(cmds, fmt.Sprintf("cd %s", bundleDir))
+			}
+
 			// Setup the shell
-			setupCmd := fmt.Sprintf("export KUBECONFIG=%s\n", kubeConfig)
+			setupCmd := strings.Join(cmds, "\n") + "\n"
 			_, _ = io.WriteString(shellPty, setupCmd)
 			_, _ = io.CopyN(io.Discard, shellPty, 2*int64(len(setupCmd))) // Don't print to screen, terminal will echo anyway
 
@@ -168,6 +175,7 @@ func ShellCmd() *cobra.Command {
 
 	cmd.Flags().StringP("support-bundle-location", "s", "", "path to support bundle archive, directory, or URL")
 	cmd.Flags().StringP("token", "t", "", "API token for authentication when fetching on-line bundles")
+	cmd.Flags().Bool("cd-bundle", false, "Change directory to the support bundle path after starting the shell")
 	cmd.Flags().Bool("debug", false, "enable debug logging. This will include HTTP response bodies in logs.")
 	return cmd
 }