From 3e5750af74a057cd3b2610edafea5b507bf67bc6 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Thu, 27 Jul 2017 16:41:42 +0200
Subject: gnu: guix: Factorize downloads of bootstrap tarball.

* gnu/packages/bootstrap.scm (bootstrap-guile-origin): New procedure.
* gnu/packages/package-management.scm (guix)[inputs]: Remove
'boot-guile' procedure; use 'bootstrap-guile-origin' instead.
---
 gnu/packages/bootstrap.scm          | 10 ++++++++
 gnu/packages/package-management.scm | 47 +++++++++++--------------------------
 2 files changed, 24 insertions(+), 33 deletions(-)

diff --git a/gnu/packages/bootstrap.scm b/gnu/packages/bootstrap.scm
index fe3c29bae2..d1b03eb882 100644
--- a/gnu/packages/bootstrap.scm
+++ b/gnu/packages/bootstrap.scm
@@ -40,6 +40,8 @@
             package-with-bootstrap-guile
             glibc-dynamic-linker
 
+            bootstrap-guile-origin
+
             %bootstrap-guile
             %bootstrap-coreutils&co
             %bootstrap-binutils
@@ -226,6 +228,14 @@ successful, or false to signal an error."
     ("aarch64-linux"
      (base32 "1giy2aprjmn5fp9c4s9r125fljw4wv6ixy5739i5bffw4jgr0f9r"))))
 
+(define (bootstrap-guile-origin system)
+  "Return an <origin> object for the Guile tarball of SYSTEM."
+  (origin
+    (method url-fetch)
+    (uri (map (cute string-append <> (bootstrap-guile-url-path system))
+              %bootstrap-base-urls))
+    (sha256 (bootstrap-guile-hash system))))
+
 (define (download-bootstrap-guile store system)
   "Return a derivation that downloads the bootstrap Guile tarball for SYSTEM."
   (let* ((path (bootstrap-guile-url-path system))
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index 67a956dea1..9a510fc9ef 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -33,6 +33,7 @@
   #:use-module (gnu packages guile)
   #:use-module (gnu packages file)
   #:use-module (gnu packages backup)
+  #:use-module (gnu packages bootstrap)          ;for 'bootstrap-guile-origin'
   #:use-module (gnu packages compression)
   #:use-module (gnu packages gnupg)
   #:use-module (gnu packages databases)
@@ -229,39 +230,19 @@
                        ("graphviz" ,graphviz)
                        ("help2man" ,help2man)))
       (inputs
-       (let ((boot-guile (lambda (arch hash)
-                           (origin
-                             (method url-fetch)
-                             (uri (boot-guile-uri arch))
-                             (sha256 hash)))))
-         `(("bzip2" ,bzip2)
-           ("gzip" ,gzip)
-           ("zlib" ,zlib)                         ;for 'guix publish'
-
-           ("sqlite" ,sqlite)
-           ("libgcrypt" ,libgcrypt)
-           ("guile" ,guile-2.2)
-
-           ("boot-guile/i686"
-            ,(boot-guile "i686"
-                         (base32
-                          "0im800m30abgh7msh331pcbjvb4n02smz5cfzf1srv0kpx3csmxp")))
-           ("boot-guile/x86_64"
-            ,(boot-guile "x86_64"
-                         (base32
-                          "1w2p5zyrglzzniqgvyn1b55vprfzhgk8vzbzkkbdgl5248si0yq3")))
-           ("boot-guile/mips64el"
-            ,(boot-guile "mips64el"
-                         (base32
-                          "0fzp93lvi0hn54acc0fpvhc7bvl0yc853k62l958cihk03q80ilr")))
-           ("boot-guile/armhf"
-            ,(boot-guile "armhf"
-                         (base32
-                          "1mi3brl7l58aww34rawhvja84xc7l1b4hmwdmc36fp9q9mfx0lg5")))
-           ("boot-guile/aarch64"
-            ,(boot-guile "aarch64"
-                         (base32
-                          "1giy2aprjmn5fp9c4s9r125fljw4wv6ixy5739i5bffw4jgr0f9r"))))))
+       `(("bzip2" ,bzip2)
+         ("gzip" ,gzip)
+         ("zlib" ,zlib)                           ;for 'guix publish'
+
+         ("sqlite" ,sqlite)
+         ("libgcrypt" ,libgcrypt)
+         ("guile" ,guile-2.2)
+
+         ("boot-guile/i686" ,(bootstrap-guile-origin "i686-linux"))
+         ("boot-guile/x86_64" ,(bootstrap-guile-origin "x86_64-linux"))
+         ("boot-guile/mips64el" ,(bootstrap-guile-origin "mips64el-linux"))
+         ("boot-guile/armhf" ,(bootstrap-guile-origin "armhf-linux"))
+         ("boot-guile/aarch64" ,(bootstrap-guile-origin "aarch64-linux"))))
       (propagated-inputs
        `(("gnutls" ,gnutls)
          ("guile-json" ,guile-json)
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