X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/8f8a0ac695f4440412de0245fc748c2792cb1496..14626b1a574924a23f18073b8bb6eff829d66e5a:/lib/cli/external.go?ds=sidebyside

diff --git a/lib/cli/external.go b/lib/cli/external.go
index ba85aae9ea..eddb563f7a 100644
--- a/lib/cli/external.go
+++ b/lib/cli/external.go
@@ -31,9 +31,6 @@ var (
 		"normalize": externalCmd{"arv-normalize"},
 		"docker":    externalCmd{"arv-keepdocker"},
 	})
-	Pipeline = cmd.Multi(map[string]cmd.Handler{
-		"run": externalCmd{"arv-run-pipeline-instance"},
-	})
 	// user, group, container, specimen, etc.
 	APICall = apiCallCmd{}
 )
@@ -92,8 +89,33 @@ func (ec externalCmd) RunCommand(prog string, args []string, stdin io.Reader, st
 		}
 		fmt.Fprintf(stderr, "%s failed: %s\n", ec.prog, err)
 		return 1
+	case *exec.Error:
+		fmt.Fprintln(stderr, err)
+		if ec.prog == "arv" {
+			fmt.Fprint(stderr, rubyInstallHints)
+		} else if strings.HasPrefix(ec.prog, "arv-") {
+			fmt.Fprint(stderr, pythonInstallHints)
+		}
+		return 1
 	default:
 		fmt.Fprintf(stderr, "error running %s: %s\n", ec.prog, err)
 		return 1
 	}
 }
+
+var (
+	rubyInstallHints = `
+Note: This subcommand uses the arvados-cli Ruby gem. If that is not
+installed, try "gem install arvados-cli", or see
+https://doc.arvados.org/install for more details.
+
+`
+	pythonInstallHints = `
+Note: This subcommand uses the "arvados" Python module. If that is
+not installed, try:
+* "pip install arvados" (either as root or in a virtualenv), or
+* "sudo apt-get install python-arvados-python-client", or
+* see https://doc.arvados.org/install for more details.
+
+`
+)