gnu: librewolf: Generate source tarball.

This patch removes an intermediate step in the build chain.  The upstream
source tarball is created with an automated build process, where Firefox
sources are fetched, patched, and repacked.  Rather than download the output
of that process, as the package has been, it’s now replicated within the build
process, similar to how IceCat works.

* gnu/packages/librewolf.scm (firefox-source-origin): New procedure.
(librewolf-source-origin): Likewise.
(computed-origin-method): New variable.
(librewolf-source): Likewise.
(librewolf) [source]: Use it.

Change-Id: I0f1c2a10252cbbff9b3b3140f6ea3a594df0c97b
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Modified-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu/packages/librewolf.scm

@@ -40,10 +40,12 @@
 
 
 (define-module (gnu packages librewolf)
+  #:use-module ((srfi srfi-1) #:hide (zip))
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system cargo)
   #:use-module (guix build-system trivial)
   #:use-module (guix download)
+  #:use-module (guix git-download)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix gexp)
   #:use-module (guix packages)
@@ -62,6 +64,7 @@
   #:use-module (gnu packages gl)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gnome)
+  #:use-module (gnu packages gnuzilla)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages hunspell)
   #:use-module (gnu packages icu4c)
@@ -81,6 +84,7 @@
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages pulseaudio)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages rust)
   #:use-module (gnu packages rust-apps)
   #:use-module (gnu packages speech)
@@ -89,6 +93,117 @@
   #:use-module (gnu packages xdisorg)
   #:use-module (gnu packages xorg))
 
+(define (firefox-source-origin version hash)
+  (origin
+    (method url-fetch)
+    (uri (string-append
+          "https://ftp.mozilla.org/pub/firefox/releases/"
+          version "/source/" "firefox-" version
+          ".source.tar.xz"))
+    (sha256 (base32 hash))))
+
+(define (librewolf-source-origin version hash)
+  (origin
+    (method git-fetch)
+    (uri (git-reference
+          (url "https://codeberg.org/librewolf/source.git")
+          (commit version)
+          (recursive? #t)))
+    (file-name (git-file-name "librewolf-source" version))
+    (sha256 (base32 hash))))
+
+(define computed-origin-method (@@ (guix packages) computed-origin-method))
+
+(define librewolf-source
+  (let* ((ff-src (firefox-source-origin "125.0.2" "16gpd6n52lshvkkha41z7xicggj64dw0qhr5gd07bcxsc4rmdl39"))
+         (version "125.0.2-1")
+         (lw-src (librewolf-source-origin version "17i36s2ny1pv3cz44w0gz48fy4vjfw6vp9jk21j62f5d3dl726x8")))
+
+    (origin
+      (method computed-origin-method)
+      (file-name (string-append "librewolf-" version ".source.tar.gz"))
+      (sha256 #f)
+      (uri
+       (delay
+         (with-imported-modules '((guix build utils))
+           #~(begin
+               (use-modules (guix build utils))
+               (set-path-environment-variable
+                "PATH" '("bin")
+                (list #+python
+                      #+(canonical-package bash)
+                      #+(canonical-package gnu-make)
+                      #+(canonical-package coreutils)
+                      #+(canonical-package findutils)
+                      #+(canonical-package patch)
+                      #+(canonical-package xz)
+                      #+(canonical-package sed)
+                      #+(canonical-package grep)
+                      #+(canonical-package gzip)
+                      #+(canonical-package tar)))
+               (set-path-environment-variable
+                "PYTHONPATH"
+                (list #+(format #f "lib/python~a/site-packages"
+                                (version-major+minor
+                                 (package-version python))))
+                '#+(cons python-jsonschema
+                         (map second
+                              (package-transitive-propagated-inputs
+                               python-jsonschema))))
+
+               ;; Copy LibreWolf source into the build directory and make
+               ;; everything writable.
+               (copy-recursively #+lw-src ".")
+               (for-each make-file-writable (find-files "."))
+
+               ;; Patch Makefile to use the upstream source instead of
+               ;; downloading.
+               (substitute* '("Makefile")
+                 (("^ff_source_tarball:=.*")
+                  (string-append "ff_source_tarball:=" #+ff-src)))
+
+               ;; Remove encoding_rs patch, it doesn't build with Rust 1.75.
+               (substitute* '("assets/patches.txt")
+                 (("patches/encoding_rs.patch\\\n$")
+                  ""))
+
+               ;; Stage locales.
+               (begin
+                 (format #t "Staging locales...~%")
+                 (force-output)
+                 (mkdir "l10n-staging")
+                 (with-directory-excursion "l10n-staging"
+                   (for-each
+                    (lambda (locale-dir)
+                      (let ((locale
+                             (string-drop
+                              (basename locale-dir)
+                              (+ 32     ; length of hash
+                                 (string-length "-mozilla-locale-")))))
+                        (format #t "  ~a~%" locale)
+                        (force-output)
+                        (copy-recursively locale-dir locale
+                                          #:log (%make-void-port "w"))
+                        (for-each make-file-writable (find-files locale))
+                        (with-directory-excursion locale
+                          (when (file-exists? ".hgtags")
+                            (delete-file ".hgtags")))))
+                    '#+all-mozilla-locales)))
+
+               ;; Patch build script to use staged locales.
+               (begin
+                 (substitute* '("scripts/generate-locales.sh")
+                   (("wget") "# wget")
+                   (("unzip") "# unzip")
+                   (("mv browser/locales/l10n/\\$1-\\*/")
+                    "mv ../l10n-staging/$1/")))
+
+               ;; Run the build script
+               (invoke "make" "all")
+               (copy-file (string-append "librewolf-" #$version
+                                         ".source.tar.gz")
+                          #$output))))))))
+
 ;; Define the versions of rust needed to build librewolf, trying to match
 ;; upstream.  See the file taskcluster/ci/toolchain/rust.yml at
 ;; https://searchfox.org under the particular firefox release, like
@@ -104,18 +219,7 @@
   (package
     (name "librewolf")
     (version "125.0.2-1")
-    (source
-     (origin
-       (method url-fetch)
-
-       (uri (string-append "https://gitlab.com/api/v4/projects/32320088/"
-                           "packages/generic/librewolf-source/"
-                           version
-                           "/librewolf-"
-                           version
-                           ".source.tar.gz"))
-       (sha256
-        (base32 "09qzdaq9l01in9h4q14vyinjvvffycha2iyjqj5p4dd5jh6q5zma"))))
+    (source librewolf-source)
     (build-system gnu-build-system)
     (arguments
      (list