diff options
Diffstat (limited to 'guix/ui.scm')
| -rw-r--r-- | guix/ui.scm | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/guix/ui.scm b/guix/ui.scm index eb85df3b18..9af8648211 100644 --- a/guix/ui.scm +++ b/guix/ui.scm @@ -7,6 +7,8 @@ ;;; Copyright © 2014, 2015 Alex Kost <alezost@gmail.com> ;;; Copyright © 2015 David Thompson <davet@gnu.org> ;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org> +;;; Copyright © 2016 Roel Janssen <roel@gnu.org> +;;; Copyright © 2016 Benz Schenk <benz.schenk@uzh.ch> ;;; ;;; This file is part of GNU Guix. ;;; @@ -87,6 +89,7 @@ matching-generations display-generation display-profile-content + display-profile-content-diff roll-back* switch-to-generation* delete-generation* @@ -1070,6 +1073,31 @@ DURATION-RELATION with the current time." (format #t (_ "~a\t(current)~%") header) (format #t "~a~%" header))))) +(define (display-profile-content-diff profile gen1 gen2) + "Display the changed packages in PROFILE GEN2 compared to generation GEN2." + + (define (equal-entry? first second) + (string= (manifest-entry-item first) (manifest-entry-item second))) + + (define (display-entry entry prefix) + (match entry + (($ <manifest-entry> name version output location _) + (format #t " ~a ~a\t~a\t~a\t~a~%" prefix name version output location)))) + + (define (list-entries number) + (manifest-entries (profile-manifest (generation-file-name profile number)))) + + (define (display-diff profile old new) + (display-generation profile new) + (let ((added (lset-difference + equal-entry? (list-entries new) (list-entries old))) + (removed (lset-difference + equal-entry? (list-entries old) (list-entries new)))) + (for-each (cut display-entry <> "+") added) + (for-each (cut display-entry <> "-") removed))) + + (display-diff profile gen1 gen2)) + (define (display-profile-content profile number) "Display the packages in PROFILE, generation NUMBER, in a human-readable way." |