From 681af1fb78a735b51dc811aed770b2948212c3fc Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Fri, 28 May 2021 10:53:49 +0200 Subject: scripts: Commands warn when passed zero arguments. This is a followup to 3f8326237df780404c172ef4127195cc20becd66. * guix/scripts/archive.scm (export-from-store): Warn then FILES is empty. * guix/scripts/build.scm (guix-build): Likewise. * guix/scripts/copy.scm (warn-if-empty): New procedure. (send-to-remote-host, retrieve-from-remote-host): Call it. * guix/scripts/edit.scm (guix-edit): Warn when SPECS is empty. * guix/scripts/environment.scm (guix-environment): Warn when MANIFEST has zero entries. * guix/scripts/graph.scm (guix-graph): Warn then ITEMS is empty. * guix/scripts/package.scm (process-actions): Warn when FILES and TRANS are both empty. --- guix/scripts/graph.scm | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'guix/scripts/graph.scm') diff --git a/guix/scripts/graph.scm b/guix/scripts/graph.scm index ddfc6ba497..66de824ef4 100644 --- a/guix/scripts/graph.scm +++ b/guix/scripts/graph.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès +;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès ;;; Copyright © 2019 Simon Tournier ;;; ;;; This file is part of GNU Guix. @@ -593,6 +593,9 @@ Emit a representation of the dependency graph of PACKAGE...\n")) (read/eval-package-expression exp))) (_ #f)) opts))) + (when (null? items) + (warning (G_ "no arguments specified; creating an empty graph~%"))) + (run-with-store store ;; XXX: Since grafting can trigger unsolicited builds, disable it. (mlet %store-monad ((_ (set-grafting #f)) -- cgit v1.2.3