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authorLudovic Courtès <ludo@gnu.org>2019-08-16 14:57:06 +0200
committerLudovic Courtès <ludo@gnu.org>2019-08-16 23:00:26 +0200
commita7c714d3983c746d14b759707ff9e3487d580dd2 (patch)
tree5355b5a1d50eefe0119a0f0d078f5d505f9561e1 /guix
parentb65bd33c36dcc290193a419b34ad4d4a7b3ff14d (diff)
downloadpatches-a7c714d3983c746d14b759707ff9e3487d580dd2.tar
patches-a7c714d3983c746d14b759707ff9e3487d580dd2.tar.gz
channels: Add 'profile-channels'.
* guix/channels.scm (profile-channels): New procedure. * guix/scripts/describe.scm (display-profile-info)[channels]: Define in terms of 'profile-channels'.
Diffstat (limited to 'guix')
-rw-r--r--guix/channels.scm28
-rw-r--r--guix/scripts/describe.scm27
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