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emacs: Add code to pipe guix output to external program.

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* emacs/guix-main.scm: Use (ice-9 popen) module.
  (pipe-guix-output): New procedure.
This commit is contained in:
Alex Kost 2015-08-30 18:44:39 +03:00
parent cdd383e9f3
commit 8b9ceb8d03
1 changed files with 10 additions and 0 deletions
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10
emacs/guix-main.scm
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@ -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.