diff options
Diffstat (limited to 'guix/build/utils.scm')
| -rw-r--r-- | guix/build/utils.scm | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/guix/build/utils.scm b/guix/build/utils.scm index 86b7ca0155..4407f9af23 100644 --- a/guix/build/utils.scm +++ b/guix/build/utils.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr> ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org> ;;; @@ -61,6 +61,7 @@ set-file-time patch-shebang patch-makefile-SHELL + patch-/usr/bin/file fold-port-matches remove-store-references wrap-program)) @@ -681,6 +682,29 @@ When KEEP-MTIME? is true, the atime/mtime of FILE are kept unchanged." (when keep-mtime? (set-file-time file st)))) +(define* (patch-/usr/bin/file file + #:key + (file-command (which "file")) + (keep-mtime? #t)) + "Patch occurrences of \"/usr/bin/file\" in FILE, replacing them with +FILE-COMMAND. When KEEP-MTIME? is true, keep FILE's modification time +unchanged." + (if (not file-command) + (format (current-error-port) + "patch-/usr/bin/file: warning: \ +no replacement 'file' command, doing nothing~%") + (let ((st (stat file))) + (substitute* file + (("/usr/bin/file") + (begin + (format (current-error-port) + "patch-/usr/bin/file: ~a: changing `~a' to `~a'~%" + file "/usr/bin/file" file-command) + file-command))) + + (when keep-mtime? + (set-file-time file st))))) + (define* (fold-port-matches proc init pattern port #:optional (unmatched (lambda (_ r) r))) "Read from PORT character-by-character; for each match against |