diff options
| -rw-r--r-- | guix/channels.scm | 28 | ||||
| -rw-r--r-- | guix/scripts/describe.scm | 27 |
2 files changed, 30 insertions, 25 deletions
diff --git a/guix/channels.scm b/guix/channels.scm index 415246cbd1..ebb2cacbc7 100644 --- a/guix/channels.scm +++ b/guix/channels.scm @@ -65,7 +65,9 @@ latest-channel-derivation channel-instances->manifest %channel-profile-hooks - channel-instances->derivation)) + channel-instances->derivation + + profile-channels)) ;;; Commentary: ;;; @@ -534,3 +536,27 @@ channel instances." latest instances of CHANNELS." (mlet %store-monad ((instances (latest-channel-instances* channels))) (channel-instances->derivation instances))) + +(define (profile-channels profile) + "Return the list of channels corresponding to entries in PROFILE. If +PROFILE is not a profile created by 'guix pull', return the empty list." + (filter-map (lambda (entry) + (match (assq 'source (manifest-entry-properties entry)) + (('source ('repository ('version 0) + ('url url) + ('branch branch) + ('commit commit) + _ ...)) + (channel (name (string->symbol + (manifest-entry-name entry))) + (url url) + (commit commit))) + + ;; No channel information for this manifest entry. + ;; XXX: Pre-0.15.0 Guix did not provide that information, + ;; but there's not much we can do in that case. + (_ #f))) + + ;; Show most recently installed packages last. + (reverse + (manifest-entries (profile-manifest profile))))) diff --git a/guix/scripts/describe.scm b/guix/scripts/describe.scm index fa6b6cae37..99a88c50fa 100644 --- a/guix/scripts/describe.scm +++ b/guix/scripts/describe.scm @@ -153,30 +153,9 @@ in the format specified by FMT." (generation-number profile)) (define channels - (map (lambda (entry) - (match (assq 'source (manifest-entry-properties entry)) - (('source ('repository ('version 0) - ('url url) - ('branch branch) - ('commit commit) - _ ...)) - (channel (name (string->symbol (manifest-entry-name entry))) - (url url) - (commit commit))) - - ;; Pre-0.15.0 Guix does not provide that information, - ;; so there's not much we can do in that case. - (_ (channel (name 'guix) - (url "?") - (commit "?"))))) - - ;; Show most recently installed packages last. - (reverse - (manifest-entries - (profile-manifest - (if (zero? number) - profile - (generation-file-name profile number))))))) + (profile-channels (if (zero? number) + profile + (generation-file-name profile number)))) (match fmt ('human |