packages: Factorize ‘all-packages’.

* gnu/packages.scm (all-packages): New procedure.
* etc/source-manifest.scm (all-packages): Remove.
* guix/scripts/graph.scm (all-packages): Remove.
* guix/scripts/refresh.scm (all-packages): Remove.
* guix/scripts/weather.scm (all-packages): Remove.

Change-Id: I6072952c4b877b541037ce86402cfb7744eeb0a0

5 files changed, 20 insertions, 48 deletions

diff --git a/etc/source-manifest.scm b/etc/source-manifest.scm
index f96a5da6f7..3e1ae07959 100644
--- a/etc/source-manifest.scm
+++ b/etc/source-manifest.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2021, 2024 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -25,17 +25,6 @@
              (guix packages) (guix profiles)
              (gnu packages))
 
-(define (all-packages)
-  "Return the list of all the packages, public or private, omitting only
-superseded packages."
-  (fold-packages (lambda (package lst)
-                   (match (package-replacement package)
-                     (#f (cons package lst))
-                     (replacement
-                      (append (list replacement package) lst))))
-                 '()
-                 #:select? (negate package-superseded)))
-
 (define (upstream-origin source)
   "Return SOURCE without any patches or snippet."
   (origin (inherit source)
diff --git a/gnu/packages.scm b/gnu/packages.scm
index 80c22d1d7f..1af3b8d440 100644
--- a/gnu/packages.scm
+++ b/gnu/packages.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012-2020, 2022-2023 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012-2020, 2022-2024 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016, 2017 Alex Kost <alezost@gmail.com>
@@ -56,6 +56,7 @@
             cache-is-authoritative?
 
             fold-packages
+            all-packages
             fold-available-packages
 
             find-newest-available-packages
@@ -253,6 +254,23 @@ is guaranteed to never traverse the same package twice."
                                 init
                                 modules))
 
+(define all-packages
+  (mlambda ()
+    "Return the list of all public packages, including replacements and hidden
+packages, excluding superseded packages."
+    (delete-duplicates
+     (fold-packages (lambda (package result)
+                      (match (package-replacement package)
+                        ((? package? replacement)
+                         (cons* replacement package result))
+                        (#f
+                         (cons package result))))
+                    '()
+
+                    ;; Dismiss deprecated packages but keep hidden packages.
+                    #:select? (negate package-superseded))
+     eq?)))
+
 (define %package-cache-file
   ;; Location of the package cache.
   "/lib/guix/package.cache")
diff --git a/guix/scripts/graph.scm b/guix/scripts/graph.scm
index 6740858d8b..935721edea 100644
--- a/guix/scripts/graph.scm
+++ b/guix/scripts/graph.scm
@@ -119,16 +119,6 @@ name."
 ;;; Reverse package DAG.
 ;;;
 
-(define (all-packages)            ;XXX: duplicated from (guix scripts refresh)
-  "Return the list of all the distro's packages."
-  (fold-packages (lambda (package result)
-                   ;; Ignore deprecated packages.
-                   (if (package-superseded package)
-                       result
-                       (cons package result)))
-                 '()
-                 #:select? (const #t)))           ;include hidden packages
-
 (define %reverse-package-node-type
   ;; For this node type we first need to compute the list of packages and the
   ;; list of back-edges.  Since we want to do it only once, we use the
diff --git a/guix/scripts/refresh.scm b/guix/scripts/refresh.scm
index ec7d38c22a..8c72d0c545 100644
--- a/guix/scripts/refresh.scm
+++ b/guix/scripts/refresh.scm
@@ -455,16 +455,6 @@ releases for ~a~%")
 ;;; Dependents.
 ;;;
 
-(define (all-packages)
-  "Return the list of all the distro's packages."
-  (fold-packages (lambda (package result)
-                   ;; Ignore deprecated packages.
-                   (if (package-superseded package)
-                       result
-                       (cons package result)))
-                 '()
-                 #:select? (const #t)))           ;include hidden packages
-
 (define (list-dependents packages)
   "List all the things that would need to be rebuilt if PACKAGES are changed."
   ;; Using %BAG-NODE-TYPE is more accurate than using %PACKAGE-NODE-TYPE
diff --git a/guix/scripts/weather.scm b/guix/scripts/weather.scm
index 08a1b22a74..29432fd923 100644
--- a/guix/scripts/weather.scm
+++ b/guix/scripts/weather.scm
@@ -55,21 +55,6 @@
   #:use-module (ice-9 vlist)
   #:export (guix-weather))
 
-(define (all-packages)
-  "Return the list of public packages we are going to query."
-  (delete-duplicates
-   (fold-packages (lambda (package result)
-                    (match (package-replacement package)
-                      ((? package? replacement)
-                       (cons* replacement package result))
-                      (#f
-                       (cons package result))))
-                  '()
-
-                  ;; Dismiss deprecated packages but keep hidden packages.
-                  #:select? (negate package-superseded))
-   eq?))
-
 (define (call-with-progress-reporter reporter proc)
   "This is a variant of 'call-with-progress-reporter' that works with monadic
 scope."