From 9fd7b050e2198c89f0763fe79f5c541b77b8e5c9 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Sun, 10 Jan 2021 15:50:30 +0100 Subject: guix package: Add '--export-manifest'. * guix/scripts/package.scm (export-manifest): New procedure. (show-help, %options): Add '--export-manifest'. (process-query): Honor it. * guix/build/profiles.scm (build-profile): Mention it. * tests/guix-package.sh: Test it. * doc/guix.texi (Invoking guix package): Document it. --- guix/build/profiles.scm | 6 +++-- guix/scripts/package.scm | 57 +++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 60 insertions(+), 3 deletions(-) (limited to 'guix') diff --git a/guix/build/profiles.scm b/guix/build/profiles.scm index 67ee9b665a..b42f498a80 100644 --- a/guix/build/profiles.scm +++ b/guix/build/profiles.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2015, 2017, 2018, 2019, 2020 Ludovic Courtès +;;; Copyright © 2015, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès ;;; ;;; This file is part of GNU Guix. ;;; @@ -169,7 +169,9 @@ SEARCH-PATHS." (lambda (p) (display "\ ;; This file was automatically generated and is for internal use only. -;; It cannot be passed to the '--manifest' option.\n\n" +;; It cannot be passed to the '--manifest' option. +;; Run 'guix package --export-manifest' if to export a file suitable +;; for '--manifest'.\n\n" p) (pretty-print manifest p))) diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm index 6faf2adb7a..2b52016c67 100644 --- a/guix/scripts/package.scm +++ b/guix/scripts/package.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès +;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès ;;; Copyright © 2013 Nikita Karetnikov ;;; Copyright © 2013, 2015 Mark H Weaver ;;; Copyright © 2014, 2016 Alex Kost @@ -48,6 +48,7 @@ #:select (directory-exists? mkdir-p)) #:use-module (ice-9 format) #:use-module (ice-9 match) + #:autoload (ice-9 pretty-print) (pretty-print) #:use-module (ice-9 regex) #:use-module (ice-9 vlist) #:use-module (srfi srfi-1) @@ -320,6 +321,48 @@ GUIX_PROFILE=\"~a\" Alternately, see @command{guix package --search-paths -p ~s}.") profile profile))))) + +;;; +;;; Export a manifest. +;;; + +(define* (export-manifest manifest + #:optional (port (current-output-port))) + "Write to PORT a manifest corresponding to MANIFEST." + (define (version-spec entry) + (let ((name (manifest-entry-name entry))) + (match (map package-version (find-packages-by-name name)) + ((_) + ;; A single version of NAME is available, so do not specify the + ;; version number, even if the available version doesn't match ENTRY. + "") + (versions + ;; If ENTRY uses the latest version, don't specify any version. + ;; Otherwise return the shortest unique version prefix. Note that + ;; this is based on the currently available packages, which could + ;; differ from the packages available in the revision that was used + ;; to build MANIFEST. + (let ((current (manifest-entry-version entry))) + (if (every (cut version>? current <>) + (delete current versions)) + "" + (version-unique-prefix (manifest-entry-version entry) + versions))))))) + + (match (manifest->code manifest + #:entry-package-version version-spec) + (('begin exp ...) + (format port (G_ "\ +;; This \"manifest\" file can be passed to 'guix package -m' to reproduce +;; the content of your profile. This is \"symbolic\": it only specifies +;; package names. To reproduce the exact same profile, you also need to +;; capture the channels being used, as returned by \"guix describe\". +;; See the \"Replicating Guix\" section in the manual.\n")) + (for-each (lambda (exp) + (newline port) + (pretty-print exp port)) + exp)))) + ;;; ;;; Command-line options. @@ -373,6 +416,8 @@ Install, remove, or upgrade packages in a single transaction.\n")) (display (G_ " -S, --switch-generation=PATTERN switch to a generation matching PATTERN")) + (display (G_ " + --export-manifest print a manifest for the chosen profile")) (display (G_ " -p, --profile=PROFILE use PROFILE instead of the user's default profile")) (display (G_ " @@ -507,6 +552,10 @@ kind of search path~%") (values (cons `(query search-paths ,kind) result) #f)))) + (option '("export-manifest") #f #f + (lambda (opt name arg result arg-handler) + (values (cons `(query export-manifest) result) + #f))) (option '(#\p "profile") #t #f (lambda (opt name arg result arg-handler) (values (alist-cons 'profile (canonicalize-profile arg) @@ -827,6 +876,12 @@ processed, #f otherwise." (format #t "~{~a~%~}" settings) #t)) + (('export-manifest) + (let* ((manifest (concatenate-manifests + (map profile-manifest profiles)))) + (export-manifest manifest (current-output-port)) + #t)) + (_ #f)))) -- cgit v1.2.3