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[bug#42048] [PATCH 4/6] channels: Save and interpret 'introduction' fiel
From: |
Ludovic Courtès |
Subject: |
[bug#42048] [PATCH 4/6] channels: Save and interpret 'introduction' field in provenance data. |
Date: |
Thu, 25 Jun 2020 23:16:03 +0200 |
With this change, profiles created by 'guix pull' & co. include channel
introductions as part of the channel metadata of each manifest entry.
* guix/channels.scm (channel-instances->manifest)[instance->entry]: Add
'introduction' field when CHANNEL has an introduction.
(profile-channels)[sexp->channel-introduction]: New procedure.
Use it to initialize the 'introduction' field.
---
guix/channels.scm | 36 +++++++++++++++++++++++++++++++-----
1 file changed, 31 insertions(+), 5 deletions(-)
diff --git a/guix/channels.scm b/guix/channels.scm
index 05b2661445..02800733dd 100644
--- a/guix/channels.scm
+++ b/guix/channels.scm
@@ -844,8 +844,9 @@ derivation."
"Return a profile manifest with entries for all of INSTANCES, a list of
channel instances."
(define (instance->entry instance drv)
- (let ((commit (channel-instance-commit instance))
- (channel (channel-instance-channel instance)))
+ (let* ((commit (channel-instance-commit instance))
+ (channel (channel-instance-channel instance))
+ (intro (channel-introduction channel)))
(manifest-entry
(name (symbol->string (channel-name channel)))
(version (string-take commit 7))
@@ -860,7 +861,19 @@ channel instances."
(version 0)
(url ,(channel-url channel))
(branch ,(channel-branch channel))
- (commit ,commit))))))))
+ (commit ,commit)
+ ,@(if intro
+ `((introduction
+ (channel-introduction
+ (version 0)
+ (commit
+ ,(channel-introduction-first-signed-commit
+ intro))
+ (signer
+ ,(openpgp-format-fingerprint
+ (channel-introduction-first-commit-signer
+ intro))))))
+ '()))))))))
(mlet* %store-monad ((derivations (channel-instance-derivations instances))
(entries -> (map instance->entry instances
derivations)))
@@ -928,17 +941,30 @@ to 'latest-channel-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."
+ (define sexp->channel-introduction
+ (match-lambda
+ (('channel-introduction ('version 0)
+ ('commit commit) ('signer signer)
+ _ ...)
+ (make-channel-introduction commit (openpgp-fingerprint signer)))
+ (x #f)))
+
(filter-map (lambda (entry)
(match (assq 'source (manifest-entry-properties entry))
(('source ('repository ('version 0)
('url url)
('branch branch)
('commit commit)
- _ ...))
+ rest ...))
(channel (name (string->symbol
(manifest-entry-name entry)))
(url url)
- (commit commit)))
+ (commit commit)
+ (introduction
+ (match (assq 'introduction rest)
+ (#f #f)
+ (('introduction intro)
+ (sexp->channel-introduction intro))))))
;; No channel information for this manifest entry.
;; XXX: Pre-0.15.0 Guix did not provide that information,
--
2.26.2