diff mbox series

[bug#55420,2/2] guix: emacs-utils: Add emacs-header-parse.

Message ID 20220514230508.27885-2-plattfot@posteo.net
State Accepted
Headers show
Series Add a function to parse emacs elisp's package header | expand

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Commit Message

Fredrik Salomonsson May 14, 2022, 11:05 p.m. UTC 
* guix/build/emacs-utils.scm (emacs-header-parse): New procedure.
---
 guix/build/emacs-utils.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Ludovic Courtès June 1, 2022, 8:39 p.m. UTC | #1 
Fredrik Salomonsson <plattfot@posteo.net> skribis:

> * guix/build/emacs-utils.scm (emacs-header-parse): New procedure.

LGTM!

Could you send a v2 of these patches?

Thanks in advance,
Ludo’.
diff mbox series

Patch

diff --git a/guix/build/emacs-utils.scm b/guix/build/emacs-utils.scm
index 8d40b9e139..76d9464806 100644
--- a/guix/build/emacs-utils.scm
+++ b/guix/build/emacs-utils.scm
@@ -32,6 +32,7 @@  (define-module (guix build emacs-utils)
             emacs-batch-script
             emacs-generate-autoloads
             emacs-byte-compile-directory
+            emacs-header-parse
 
             as-display
             emacs-substitute-sexps
@@ -97,6 +98,14 @@  (define* (emacs-byte-compile-directory dir)
                 (byte-recompile-directory (file-name-as-directory ,dir) 0 1))))
     (emacs-batch-eval expr)))
 
+(define (emacs-header-parse section file)
+  "Parse the header SECTION in FILE and return it as a string."
+  (emacs-batch-script
+   `(progn
+     (require 'lisp-mnt)
+     (find-file ,file)
+     (princ (lm-header ,section)))))
+
 (define as-display         ;syntactic keyword for 'emacs-substitute-sexps'
   '(as display))