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authorAlex Kost <alezost@gmail.com>2015-08-30 18:44:39 +0300
committerAlex Kost <alezost@gmail.com>2015-09-01 13:03:50 +0300
commit8b9ceb8d03ab7b67cab9ce96b66f197c331ccc04 (patch)
tree45eafc60c8a87bd9b9a0eef255898155d1a51284 /emacs
parentcdd383e9f31a37046c388054e0ac7b59cad3dd6a (diff)
emacs: Add code to pipe guix output to external program.
* emacs/guix-main.scm: Use (ice-9 popen) module. (pipe-guix-output): New procedure.
Diffstat (limited to 'emacs')
-rw-r--r--emacs/guix-main.scm10
1 files changed, 10 insertions, 0 deletions
diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm
index fe224fb582..8d3a88152d 100644
--- a/emacs/guix-main.scm
+++ b/emacs/guix-main.scm
@@ -45,6 +45,7 @@
(use-modules
(ice-9 vlist)
(ice-9 match)
+ (ice-9 popen)
(srfi srfi-1)
(srfi srfi-2)
(srfi srfi-11)
@@ -949,6 +950,15 @@ GENERATIONS is a list of generation numbers."
"Return string with 'guix COMMANDS ... --help' output."
(apply guix-command-output `(,@commands "--help")))
+(define (pipe-guix-output guix-args command-args)
+ "Run 'guix GUIX-ARGS ...' command and pipe its output to a shell command
+defined by COMMAND-ARGS.
+Return #t if the shell command was executed successfully."
+ (let ((pipe (apply open-pipe* OPEN_WRITE command-args)))
+ (with-output-to-port pipe
+ (lambda () (apply guix-command guix-args)))
+ (zero? (status:exit-val (close-pipe pipe)))))
+
;;; Lists of packages, lint checkers, etc.