Subject: [bug#41539] [PATCH 2/2] doc: Add example to calculate the size a system.

From: Pierre Neidhardt <[email-masked]>
Date: Tue, 26 May 2020 15:40:41 +0200

* doc/guix.texi (Invoking `guix size'): Add guix size example for store item.
---
 doc/guix.texi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/doc/guix.texi b/doc/guix.texi
index 4dbbf96db9..0c4067b52e 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -10110,6 +10110,13 @@ libraries.  (That libc and GCC's libraries represent a large fraction of
 the closure is not a problem @i{per se} because they are always available
 on the system anyway.)
 
+Since the command also accepts store file names, assessing the size of
+a build result is straightforward:
+
+@example
+guix size $(guix system build config.scm)
+@end example
+
 When the package(s) passed to @command{guix size} are available in the
 store@footnote{More precisely, @command{guix size} looks for the
 @emph{ungrafted} variant of the given package(s), as returned by
-- 
2.26.2