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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017-2023 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (guix self)
  #:use-module (guix config)
  #:use-module (guix modules)
  #:use-module (guix gexp)
  #:use-module (guix store)
  #:use-module (guix monads)
  #:use-module (guix discovery)
  #:use-module (guix packages)
  #:use-module (guix sets)
  #:use-module (guix modules)
  #:use-module ((guix utils) #:select (version-major+minor))
  #:use-module ((guix build utils) #:select (find-files))
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-9)
  #:use-module (srfi srfi-35)
  #:use-module (ice-9 match)
  #:export (make-config.scm
            whole-package                     ;for internal use in 'guix pull'
            compiled-guix
            guix-derivation))

\f
;;;
;;; Dependency handling.
;;;

(define %packages
  (let ((ref (lambda (module variable)
               (delay
                 (module-ref (resolve-interface
                              `(gnu packages ,module))
                             variable)))))
    `(("guile"              . ,(ref 'guile 'guile-3.0-latest))
      ("guile-avahi"        . ,(ref 'guile-xyz 'guile-avahi))
      ("guile-json"         . ,(ref 'guile 'guile-json-4))
      ("guile-ssh"          . ,(ref 'ssh   'guile-ssh))
      ("guile-git"          . ,(ref 'guile 'guile-git))
      ("guile-semver"       . ,(ref 'guile-xyz 'guile-semver))
      ("guile-lib"          . ,(ref 'guile-xyz 'guile-lib))
      ("guile-sqlite3"      . ,(ref 'guile 'guile-sqlite3))
      ("guile-zlib"         . ,(ref 'guile 'guile-zlib))
      ("guile-lzlib"        . ,(ref 'guile 'guile-lzlib))
      ("guile-zstd"         . ,(ref 'guile 'guile-zstd))
      ("guile-gcrypt"       . ,(ref 'gnupg 'guile-gcrypt))
      ("guile-gnutls"       . ,(ref 'tls 'guile-gnutls))
      ("guix-daemon"        . ,(ref 'package-management 'guix-daemon))
      ("disarchive"         . ,(ref 'backup 'disarchive))
      ("guile-lzma"         . ,(ref 'guile 'guile-lzma))
      ("gzip"               . ,(ref 'compression 'gzip))
      ("bzip2"              . ,(ref 'compression 'bzip2))
      ("xz"                 . ,(ref 'compression 'xz))
      ("po4a"               . ,(ref 'gettext 'po4a))
      ("gettext-minimal"    . ,(ref 'gettext 'gettext-minimal))
      ("gcc-toolchain"      . ,(ref 'commencement 'gcc-toolchain))
      ("glibc-utf8-locales" . ,(ref 'base 'glibc-utf8-locales))
      ("graphviz"           . ,(ref 'graphviz 'graphviz-minimal))
      ("font-ghostscript"   . ,(ref 'ghostscript 'font-ghostscript))
      ("texinfo"            . ,(ref 'texinfo 'texinfo)))))

(define (specification->package name)
  ;; Use our own variant of that procedure because that of (gnu packages)
  ;; would traverse all the .scm files, which is wasteful.
  (and=> (assoc-ref %packages name) force))

\f
;;;
;;; Derivations.
;;;

;; Node in a DAG of build tasks.  Each node maps to a derivation, but it's
;; easier to express things this way.
(define-record-type <node>
  (node name modules source dependencies compiled)
  node?
  (name          node-name)                       ;string
  (modules       node-modules)                    ;list of module names
  (source        node-source)                     ;list of source files
  (dependencies  node-dependencies)               ;list of nodes
  (compiled      node-compiled))                  ;node -> lowerable object

;; File mappings are essentially an alist as passed to 'imported-files'.
(define-record-type <file-mapping>
  (file-mapping name alist)
  file-mapping?
  (name  file-mapping-name)
  (alist file-mapping-alist))

(define-gexp-compiler (file-mapping-compiler (mapping <file-mapping>)
                                             system target)
  ;; Here we use 'imported-files', which can arrange to directly import all
  ;; the files instead of creating a derivation, when possible.
  (imported-files (map (match-lambda
                         ((destination (? local-file? file))
                          (cons destination
                                (local-file-absolute-file-name file)))
                         ((destination source)
                          (cons destination source))) ;silliness
                       (file-mapping-alist mapping))
                  #:name (file-mapping-name mapping)
                  #:system system))

(define (node-source+compiled node)
  "Return a \"bundle\" containing both the source code and object files for
NODE's modules, under their FHS directories: share/guile/site and lib/guile."
  (define build
    (with-imported-modules '((guix build utils))
      #~(begin
          (use-modules (guix build utils))

          (define source
            (string-append #$output "/share/guile/site/"
                           (effective-version)))

          (define object
            (string-append #$output "/lib/guile/" (effective-version)
                           "/site-ccache"))

          (mkdir-p (dirname source))
          (symlink #$(node-source node) source)
          (mkdir-p (dirname object))
          (symlink #$(node-compiled node) object))))

  (computed-file (string-append (node-name node) "-modules")
                 build
                 #:options '(#:local-build? #t

                             ;; "Building" it locally is faster.
                             #:substitutable? #f)))

(define (node-fold proc init nodes)
  (let loop ((nodes nodes)
             (visited (setq))
             (result init))
    (match nodes
      (() result)
      ((head tail ...)
       (if (set-contains? visited head)
           (loop tail visited result)
           (loop tail (set-insert head visited)
                 (proc head result)))))))

(define (node-modules/recursive nodes)
  (node-fold (lambda (node modules)
               (append (node-modules node) modules))
             '()
             nodes))

(define* (closure modules #:optional (except '()))
  (source-module-closure modules
                         #:select?
                         (match-lambda
                           (('guix 'config)
                            #f)
                           ((and module
                                 (or ('guix _ ...) ('gnu _ ...)))
                            (not (member module except)))
                           (rest #f))))

(define module->import
  ;; Return a file-name/file-like object pair for the specified module and
  ;; suitable for 'imported-files'.
  (match-lambda
    ((module '=> thing)
     (let ((file (module-name->file-name module)))
       (list file thing)))
    (module
        (let ((file (module-name->file-name module)))
          (list file
                (local-file (search-path %load-path file)))))))

(define* (scheme-node name modules #:optional (dependencies '())
                      #:key (extra-modules '()) (extra-files '())
                      (extensions '())
                      parallel? guile-for-build)
  "Return a node that builds the given Scheme MODULES, and depends on
DEPENDENCIES (a list of nodes).  EXTRA-MODULES is a list of additional modules
added to the source, and EXTRA-FILES is a list of additional files.
EXTENSIONS is a set of full-blown Guile packages (e.g., 'guile-json') that
must be present in the search path."
  (let* ((modules (append extra-modules
                          (closure modules
                                   (node-modules/recursive dependencies))))
         (module-files (map module->import modules))
         (source (file-mapping (string-append name "-source")
                               (append module-files extra-files))))
    (node name modules source dependencies
          (compiled-modules name source
                            (map car module-files)
                            (map node-source dependencies)
                            (map node-compiled dependencies)
                            #:extensions extensions
                            #:parallel? parallel?
                            #:guile-for-build guile-for-build))))

(define (file-imports directory sub-directory pred)
  "List all the files matching PRED under DIRECTORY/SUB-DIRECTORY.  Return a
list of file-name/file-like objects suitable as inputs to 'imported-files'."
  (map (lambda (file)
         (list (string-drop file (+ 1 (string-length directory)))
               (local-file file #:recursive? #t)))
       (find-files (string-append directory "/" sub-directory) pred)))

(define* (file-append* item file #:key (recursive? #t))
  "Return FILE within ITEM, which may be a file name or a file-like object.
When ITEM is a plain file name (a string), simply return a 'local-file'
record with the new file name."
  (match item
    ((? string?)
     ;; This is the optimal case: we return a new "source".  Thus, a
     ;; derivation that depends on this sub-directory does not depend on ITEM
     ;; itself.
     (local-file (string-append item "/" file)
                 #:recursive? recursive?))
    ((? local-file? base)
     ;; Likewise, but with a <local-file>.
     (if (local-file-recursive? base)
         (local-file (string-append (local-file-absolute-file-name base)
                                    "/" file)
                     (basename file)
                     #:recursive? recursive?
                     #:select? (local-file-select? base))
         (file-append base file)))
    (_
     ;; In this case, anything that refers to the result also depends on ITEM,
     ;; which isn't great.
     (file-append item "/" file))))

(define* (locale-data source domain
                      #:optional (directory domain))
  "Return the locale data from 'po/DIRECTORY' in SOURCE, corresponding to
DOMAIN, a gettext domain."
  (define gettext-minimal
    (specification->package "gettext-minimal"))

  (define build
    (with-imported-modules '((guix build utils))
      #~(begin
          (use-modules (guix build utils)
                       (srfi srfi-26)
                       (ice-9 match) (ice-9 ftw))

          (define po-directory
            #+(file-append* source (string-append "po/" directory)))

          (define (compile language)
            (let ((gmo (string-append #$output "/" language "/LC_MESSAGES/"
                                      #$domain ".mo")))
              (mkdir-p (dirname gmo))
              (invoke #+(file-append gettext-minimal "/bin/msgfmt")
                      "-c" "--statistics" "--verbose"
                      "-o" gmo
                      (string-append po-directory "/" language ".po"))))

          (define (linguas)
            ;; Return the list of languages.  Note: don't read 'LINGUAS'
            ;; because it contains things like 'en@boldquot' that do not have
            ;; a corresponding .po file.
            (map (cut basename <> ".po")
                 (scandir po-directory
                          (cut string-suffix? ".po" <>))))

          (for-each compile (linguas)))))

  (computed-file (string-append "guix-locale-" domain)
                 build))

(define (translate-texi-manuals source)
  "Return the translated texinfo manuals built from SOURCE."
  (define po4a
    (specification->package "po4a"))

  (define gettext-minimal
    (specification->package "gettext-minimal"))

  (define glibc-utf8-locales
    (specification->package "glibc-utf8-locales"))

  (define documentation
    (file-append* source "doc"))

  (define documentation-po
    (file-append* source "po/doc"))

  (define build
    (with-imported-modules '((guix build utils) (guix build po))
      #~(begin
          (use-modules (guix build utils) (guix build po)
                       (ice-9 match) (ice-9 regex) (ice-9 textual-ports)
                       (ice-9 vlist) (ice-9 threads)
                       (srfi srfi-1))

          (define (translate-tmp-texi po source output)
            "Translate Texinfo file SOURCE using messages from PO, and write
the result to OUTPUT."
            (invoke #+(file-append po4a "/bin/po4a-translate")
              "-M" "UTF-8" "-L" "UTF-8" "-k" "0" "-f" "texinfo"
              "-m" source "-p" po "-l" output))

          (define (canonicalize-whitespace str)
            ;; Change whitespace (newlines, etc.) in STR to #\space.
            (string-map (lambda (chr)
                          (if (char-set-contains? char-set:whitespace chr)
                              #\space
                              chr))
                        str))

          (define* (translate-texi prefix po lang
                                   #:key (extras '()))
            "Translate the manual for one language LANG using the PO file.
PREFIX must be the prefix of the manual, 'guix' or 'guix-cookbook'.  EXTRAS is
a list of extra files, such as '(\"contributing\")."
            (for-each (lambda (file)
                        (translate-tmp-texi po (string-append file ".texi")
                                            (string-append file "." lang
                                                           ".texi.tmp")))
                      (cons prefix extras))

            (for-each (lambda (file)
                        (let* ((texi (string-append file "." lang ".texi"))
                               (tmp  (string-append texi ".tmp")))
                          (copy-file tmp texi)
                          (translate-cross-references texi po)))
                      (cons prefix extras)))

          (define (available-translations directory domain)
            ;; Return the list of available translations under DIRECTORY for
            ;; DOMAIN, a gettext domain such as "guix-manual".  The result is
            ;; a list of language/PO file pairs.
            (filter-map (lambda (po)
                          (let ((base (basename po)))
                            (and (string-prefix? (string-append domain ".")
                                                 base)
                                 (match (string-split base #\.)
                                   ((_ ... lang "po")
                                    (cons lang po))))))
                        (find-files directory
                                    "\\.[a-z]{2}(_[A-Z]{2})?\\.po$")))

          (define parallel-jobs
            ;; Limit thread creation by 'n-par-for-each', mostly to put an
            ;; upper bound on memory usage.
            (min (parallel-job-count) 4))

          (mkdir #$output)
          (copy-recursively #$documentation "."
                            #:log (%make-void-port "w"))

          (for-each
            (lambda (file)
              (copy-file file (basename file)))
            (find-files #$documentation-po ".*.po$"))

          (setenv "GUIX_LOCPATH"
                  #+(file-append glibc-utf8-locales "/lib/locale"))
          (setenv "PATH" #+(file-append gettext-minimal "/bin"))
          (setenv "LC_ALL" "en_US.UTF-8")
          (setlocale LC_ALL "en_US.UTF-8")

          (n-par-for-each parallel-jobs
                          (match-lambda
                            ((language . po)
                             (translate-texi "guix" po language
                                             #:extras '("contributing"))))
                          (available-translations "." "guix-manual"))

          (n-par-for-each parallel-jobs
                          (match-lambda
                            ((language . po)
                             (translate-texi "guix-cookbook" po language)))
                          (available-translations "." "guix-cookbook"))

          (for-each (lambda (file)
                      (install-file file #$output))
                    (append
                     (find-files "." "contributing\\..*\\.texi$")
                     (find-files "." "guix\\..*\\.texi$")
                     (find-files "." "guix-cookbook\\..*\\.texi$"))))))

  (computed-file "guix-translated-texinfo" build))

(define (info-manual source)
  "Return the Info manual built from SOURCE."
  (define texinfo
    (specification->package "texinfo"))

  (define graphviz
    (specification->package "graphviz"))

  (define font-ghostscript
    (specification->package "font-ghostscript"))

  (define glibc-utf8-locales
    (specification->package "glibc-utf8-locales"))

  (define documentation
    (file-append* source "doc"))

  (define examples
    (file-append* source "gnu/system/examples"))

  (define build
    (with-imported-modules '((guix build utils))
      #~(begin
          (use-modules (guix build utils)
                       (ice-9 match))

          (mkdir #$output)

          ;; Create 'version.texi'.
          ;; XXX: Can we use a more meaningful version string yet one that
          ;; doesn't change at each commit?
          (call-with-output-file "version.texi"
            (lambda (port)
              (let ((version "0.0-git"))
                (format port "
@set UPDATED 1 January 1970
@set UPDATED-MONTH January 1970
@set EDITION ~a
@set VERSION ~a\n" version version))))

          ;; Copy configuration templates that the manual includes.
          (for-each (lambda (template)
                      (copy-file template
                                 (string-append
                                  "os-config-"
                                  (basename template ".tmpl")
                                  ".texi")))
                    (find-files #$examples "\\.tmpl$"))

          ;; Build graphs.
          (mkdir-p (string-append #$output "/images"))

          (setenv "XDG_DATA_DIRS"                 ;fonts needed by 'dot'
                  #+(file-append font-ghostscript "/share"))
          (for-each (lambda (dot-file)
                      (invoke #+(file-append graphviz "/bin/dot")
                              "-Tpng" "-Gratio=.9" "-Gnodesep=.005"
                              "-Granksep=.00005" "-Nfontsize=9"
                              "-Nheight=.1" "-Nwidth=.1"
                              "-o" (string-append #$output "/images/"
                                                  (basename dot-file ".dot")
                                                  ".png")
                              dot-file))
                    (find-files (string-append #$documentation "/images")
                                "\\.dot$"))

          ;; Copy other PNGs.
          (for-each (lambda (png-file)
                      (install-file png-file
                                    (string-append #$output "/images")))
                    (find-files (string-append #$documentation "/images")
                                "\\.png$"))

          ;; Finally build the manual.  Copy it the Texinfo files to $PWD and
          ;; add a symlink to the 'images' directory so that 'makeinfo' can
          ;; see those images and produce image references in the Info output.
          (copy-recursively #$documentation "."
                            #:log (%make-void-port "w"))
          (copy-recursively #+(translate-texi-manuals source) "."
                            #:log (%make-void-port "w"))
          (delete-file-recursively "images")
          (symlink (string-append #$output "/images") "images")

          ;; Provide UTF-8 locales needed by the 'xspara.c' code in makeinfo.
          (setenv "GUIX_LOCPATH"
                  #+(file-append glibc-utf8-locales "/lib/locale"))

          (for-each (lambda (texi)
                      (match (string-split (basename texi) #\.)
                        (("guix" language "texi")
                         ;; Create 'version-LL.texi'.
                         (symlink "version.texi"
                                  (string-append "version-" language
                                                 ".texi")))
                        (_ #f))

                      (invoke #+(file-append texinfo "/bin/makeinfo")
                              texi "-I" #$documentation
                              "-I" "."
                              "-o" (string-append #$output "/"
                                                  (basename texi ".texi")
                                                  ".info")))
                    (cons "guix.texi"
                          (append (find-files "."
                                              "^guix\\.[a-z]{2}(_[A-Z]{2})?\\.texi$")
                                  (find-files "."
                                              "^guix-cookbook.*\\.texi$"))))

          ;; Compress Info files.
          (setenv "PATH"
                  #+(file-append (specification->package "gzip") "/bin"))
          (for-each (lambda (file)
                      (invoke "gzip" "-9n" file))
                    (find-files #$output "\\.info(-[0-9]+)?$")))))

  (computed-file "guix-manual" build))

(define-syntax-rule (prevent-inlining! identifier ...)
  (begin (set! identifier identifier) ...))

;; XXX: These procedures are actually used by 'doc/build.scm'.  Protect them
;; from inlining on Guile 3.
(prevent-inlining! file-append* translate-texi-manuals info-manual)

(define* (guile-module-union things #:key (name "guix-module-union"))
  "Return the union of the subset of THINGS (packages, computed files, etc.)
that provide Guile modules."
  (define build
    (with-imported-modules '((guix build union))
      #~(begin
          (use-modules (guix build union))

          (define (modules directory)
            (string-append directory "/share/guile/site"))

          (define (objects directory)
            (string-append directory "/lib/guile"))

          (union-build #$output
                       (filter (lambda (directory)
                                 (or (file-exists? (modules directory))
                                     (file-exists? (objects directory))))
                               '#$things)

                       #:log-port (%make-void-port "w")))))

  (computed-file name build))

(define (quiet-guile guile)
  "Return a wrapper that does the same as the 'guile' executable of GUILE,
except that it does not complain about locales and falls back to 'en_US.utf8'
instead of 'C'."
  (define gcc
    (specification->package "gcc-toolchain"))

  (define source
    (search-path %load-path
                 "gnu/packages/aux-files/guile-launcher.c"))

  (define effective
    (version-major+minor (package-version guile)))

  (define build
    ;; XXX: Reuse <c-compiler> from (guix scripts pack) instead?
    (with-imported-modules '((guix build utils))
      #~(begin
          (use-modules (guix build utils)
                       (srfi srfi-26))

          (mkdir-p (string-append #$output "/bin"))

          (setenv "PATH" #$(file-append gcc "/bin"))
          (setenv "C_INCLUDE_PATH"
                  (string-join
                   (map (cut string-append <> "/include")
                        '#$(match (bag-transitive-build-inputs
                                   (package->bag guile))
                             (((labels packages . _) ...)
                              (filter package? packages))))
                   ":"))
          (setenv "LIBRARY_PATH" #$(file-append gcc "/lib"))
          (setenv "GUIX_LD_WRAPPER_DISABLE_RPATH" "1")

          (invoke "gcc" #$(local-file source) "-Wall" "-g0" "-O2"
                  "-I" #$(file-append guile "/include/guile/" effective)
                  "-L" #$(file-append guile "/lib")
                  "-Wl,-rpath" #$(file-append guile "/lib")
                  #$(string-append "-lguile-" effective)
                  "-o" (string-append #$output "/bin/guile")))))

  (computed-file "guile-wrapper" build))

(define* (guix-command modules
                       #:key source (dependencies '())
                       guile (guile-version (effective-version)))
  "Return the 'guix' command such that it adds MODULES and DEPENDENCIES in its
load path."
  (define glibc-utf8-locales
    (specification->package "glibc-utf8-locales"))

  (define module-directory
    ;; To minimize the number of 'stat' calls needed to locate a module,
    ;; create the union of all the module directories.
    (guile-module-union (cons modules dependencies)))

  (program-file "guix-command"
                #~(begin
                    ;; Remove the empty extension from the search path.
                    (set! %load-extensions '(".scm"))

                    (set! %load-path
                      (append (list (string-append #$module-directory
                                                   "/share/guile/site/"
                                                   (effective-version))
                                    (string-append #$guile "/share/guile/"
                                                   (effective-version)))
                              %load-path))

                    (set! %load-compiled-path
                      (append (list (string-append #$module-directory
                                                   "/lib/guile/"
                                                   (effective-version)
                                                   "/site-ccache")
                                    (string-append #$guile "/lib/guile/"
                                                   (effective-version)
                                                   "/ccache"))
                              %load-compiled-path))

                    ;; To maximize the chances that locales are set up right
                    ;; out-of-the-box, bundle "common" UTF-8 locales.
                    (let ((locpath (getenv "GUIX_LOCPATH")))
                      (setenv "GUIX_LOCPATH"
                              (string-append (if locpath
                                                 (string-append locpath ":")
                                                 "")
                                             #$(file-append glibc-utf8-locales
                                                            "/lib/locale"))))

                    (let ((guix-main (module-ref (resolve-interface '(guix ui))
                                                 'guix-main)))
                      #$(if source
                            #~(begin
                                (bindtextdomain "guix"
                                                #$(locale-data source "guix"))
                                (bindtextdomain "guix-packages"
                                                #$(locale-data source
                                                               "guix-packages"
                                                               "packages")))
                            #t)

                      ;; XXX: It would be more convenient to change it to:
                      ;;   (exit (apply guix-main (command-line)))
                      (apply guix-main (command-line))))

                ;; Use a 'guile' variant that doesn't complain about locales.
                #:guile (quiet-guile guile)))

(define (selinux-policy source daemon)
  "Return the SELinux policy file taken from SOURCE and adjusted to refer to
DAEMON and to the current configuration variables."
  (define build
    (with-imported-modules '((guix build utils))
      #~(begin
          (use-modules (guix build utils))

          (copy-file #+(file-append* source "/etc/guix-daemon.cil.in")
                     "guix-daemon.cil")
          (substitute* "guix-daemon.cil"
            (("@guix_sysconfdir@") #$%sysconfdir)
            (("@guix_localstatedir@") #$%localstatedir)
            (("@storedir@") #$%storedir)
            (("@prefix@") #$daemon))
          (copy-file "guix-daemon.cil" #$output))))

  (computed-file "guix-daemon.cil" build))

(define (miscellaneous-files source daemon)
  "Return data files taken from SOURCE."
  (file-mapping "guix-misc"
                `(("etc/bash_completion.d/guix"
                   ,(file-append* source "/etc/completion/bash/guix"))
                  ("etc/bash_completion.d/guix-daemon"
                   ,(file-append* source "/etc/completion/bash/guix-daemon"))
                  ("share/zsh/site-functions/_guix"
                   ,(file-append* source "/etc/completion/zsh/_guix"))
                  ("share/fish/vendor_completions.d/guix.fish"
                   ,(file-append* source "/etc/completion/fish/guix.fish"))
                  ("share/selinux/guix-daemon.cil"
                   ,(selinux-policy source daemon))
                  ("share/guix/berlin.guix.gnu.org.pub"
                   ,(file-append* source
                                  "/etc/substitutes/berlin.guix.gnu.org.pub"))
                  ("share/guix/ci.guix.gnu.org.pub"  ;alias
                   ,(file-append* source "/etc/substitutes/berlin.guix.gnu.org.pub"))
                  ("share/guix/ci.guix.info.pub"  ;alias
                   ,(file-append* source "/etc/substitutes/berlin.guix.gnu.org.pub"))
                  ("share/guix/bordeaux.guix.gnu.org.pub"
                   ,(file-append* source "/etc/substitutes/bordeaux.guix.gnu.org.pub")))))

(define* (whole-package name modules dependencies
                        #:key
                        (guile-version (effective-version))
                        info daemon miscellany
                        guile
                        (command (guix-command modules
                                               #:dependencies dependencies
                                               #:guile guile
                                               #:guile-version guile-version)))
  "Return the whole Guix package NAME that uses MODULES, a derivation of all
the modules (under share/guile/site and lib/guile), and DEPENDENCIES, a list
of packages depended on.  COMMAND is the 'guix' program to use; INFO is the
Info manual."
  (define (wrap daemon)
    (program-file "guix-daemon"
                  #~(begin
                      ;; Refer to the right 'guix' command for 'guix
                      ;; substitute' & co.
                      (setenv "GUIX" #$command)

                      ;; Honor the user's settings rather than those hardcoded
                      ;; in the 'guix-daemon' package.
                      (unless (getenv "GUIX_STATE_DIRECTORY")
                        (setenv "GUIX_STATE_DIRECTORY"
                                #$(string-append %localstatedir "/guix")))
                      (unless (getenv "GUIX_CONFIGURATION_DIRECTORY")
                        (setenv "GUIX_CONFIGURATION_DIRECTORY"
                                #$(string-append %sysconfdir "/guix")))
                      (unless (getenv "NIX_STORE_DIR")
                        (setenv "NIX_STORE_DIR" #$%storedir))

                      (apply execl #$(file-append daemon "/bin/guix-daemon")
                             "guix-daemon" (cdr (command-line))))
                  #:guile guile))

  (computed-file name
                 (with-imported-modules '((guix build utils))
                   #~(begin
                       (use-modules (guix build utils))

                       (define daemon
                         #$(and daemon (wrap daemon)))

                       (mkdir-p (string-append #$output "/bin"))
                       (symlink #$command
                                (string-append #$output "/bin/guix"))

                       (when daemon
                         (symlink daemon
                                  (string-append #$output "/bin/guix-daemon")))

                       (let ((share (string-append #$output "/share"))
                             (lib   (string-append #$output "/lib"))
                             (info  #$info))
                         (mkdir-p share)
                         (symlink #$(file-append modules "/share/guile")
                                  (string-append share "/guile"))
                         (when info
                           (symlink #$info (string-append share "/info")))

                         (mkdir-p lib)
                         (symlink #$(file-append modules "/lib/guile")
                                  (string-append lib "/guile")))

                       (when #$miscellany
                         (copy-recursively #$miscellany #$output
                                           #:log (%make-void-port "w")))))))

(define (transitive-package-dependencies package)
  "Return the list of packages propagated by PACKAGE, including PACKAGE
itself."
  (match (package-transitive-propagated-inputs package)
    (((labels packages _ ...) ...)
     (cons package packages))))

(define* (compiled-guix source #:key
                        (version %guix-version)
                        (channel-metadata #f)
                        (pull-version 1)
                        (name (string-append "guix-" version))
                        (guile-version (effective-version))
                        (guile-for-build (default-guile))
                        (gzip (specification->package "gzip"))
                        (bzip2 (specification->package "bzip2"))
                        (xz (specification->package "xz"))
                        (guix (specification->package "guix")))
  "Return a file-like object that contains a compiled Guix."
  (define guile-avahi
    (specification->package "guile-avahi"))

  (define guile-json
    (specification->package "guile-json"))

  (define guile-ssh
    (specification->package "guile-ssh"))

  (define guile-lib
    (specification->package "guile-lib"))

  (define guile-git
    (specification->package "guile-git"))

  (define guile-sqlite3
    (specification->package "guile-sqlite3"))

  (define guile-zlib
    (specification->package "guile-zlib"))

  (define guile-lzlib
    (specification->package "guile-lzlib"))

  (define guile-zstd
    (specification->package "guile-zstd"))

  (define guile-gcrypt
    (specification->package "guile-gcrypt"))

  (define guile-semver
    (specification->package "guile-semver"))

  (define guile-gnutls
    (specification->package "guile-gnutls"))

  (define disarchive
    (specification->package "disarchive"))

  (define guile-lzma
    (specification->package "guile-lzma"))

  (define dependencies
    (append-map transitive-package-dependencies
                (list guile-gcrypt guile-gnutls guile-git guile-avahi
                      guile-json guile-semver guile-ssh guile-sqlite3
                      guile-lib guile-zlib guile-lzlib guile-zstd)))

  (define *core-modules*
    (scheme-node "guix-core"
                 '((guix)
                   (guix monad-repl)
                   (guix packages)
                   (guix download)
                   (guix discovery)
                   (guix profiles)
                   (guix build-system gnu)
                   (guix build-system trivial)
                   (guix build profiles)
                   (guix build gnu-build-system))

                 ;; Provide a dummy (guix config) with the default version
                 ;; number, storedir, etc.  This is so that "guix-core" is the
                 ;; same across all installations and doesn't need to be
                 ;; rebuilt when the version changes, which in turn means we
                 ;; can have substitutes for it.
                 #:extra-modules
                 `(((guix config)
                    => ,(make-config.scm
                         #:config-variables %default-config-variables)))

                 ;; (guix man-db) is needed at build-time by (guix profiles)
                 ;; but we don't need to compile it; not compiling it allows
                 ;; us to avoid an extra dependency on guile-gdbm-ffi.
                 #:extra-files
                 `(("guix/man-db.scm" ,(local-file "../guix/man-db.scm"))
                   ("guix/build/po.scm" ,(local-file "../guix/build/po.scm"))
                   ("guix/store/schema.sql"
                    ,(local-file "../guix/store/schema.sql")))

                 #:extensions (list guile-gcrypt
                                    guile-json)   ;for (guix swh)
                 #:guile-for-build guile-for-build))

  (define *extra-modules*
    (scheme-node "guix-extra"
                 (filter-map (match-lambda
                               (('guix 'scripts _ ..1) #f)
                               (('guix 'man-db) #f)
                               (('guix 'tests _ ...) #f)
                               (name name))
                             (scheme-modules* source "guix"))
                 (list *core-modules*)

                 #:extra-files
                 `(("guix/graph.js" ,(local-file "../guix/graph.js"))
                   ("guix/d3.v3.js" ,(local-file "../guix/d3.v3.js")))

                 #:extensions dependencies
                 #:guile-for-build guile-for-build))

  (define *core-package-modules*
    (scheme-node "guix-packages-base"
                 `((gnu packages)
                   (gnu packages base))
                 (list *core-modules* *extra-modules*)
                 #:extensions dependencies

                 ;; Add all the non-Scheme files here.  We must do it here so
                 ;; that 'search-patches' & co. can find them.  Ideally we'd
                 ;; keep them next to the .scm files that use them but it's
                 ;; difficult to do (XXX).
                 #:extra-files
                 (file-imports source "gnu/packages"
                               (lambda (file stat)
                                 (and (eq? 'regular (stat:type stat))
                                      (not (string-suffix? ".scm" file))
                                      (not (string-suffix? ".go" file))
                                      (not (string-prefix? ".#" file))
                                      (not (string-suffix? "~" file)))))
                 #:guile-for-build guile-for-build))

  (define *package-modules*
    (scheme-node "guix-packages"
                 (scheme-modules* source "gnu/packages")
                 (list *core-modules* *extra-modules* *core-package-modules*)
                 #:extensions dependencies
                 #:guile-for-build guile-for-build))

  (define *system-modules*
    (scheme-node "guix-system"
                 `((gnu system)
                   (gnu services)
                   ,@(scheme-modules* source "gnu/bootloader")
                   ,@(scheme-modules* source "gnu/system")
                   ,@(scheme-modules* source "gnu/services")
                   ,@(scheme-modules* source "gnu/machine")
                   ,@(scheme-modules* source "guix/platforms/"))
                 (list *core-package-modules* *package-modules*
                       *extra-modules* *core-modules*)
                 #:extensions dependencies
                 #:extra-files
                 (append (file-imports source "gnu/system/examples"
                                       (const #t))

                         ;; All the installer code is on the build-side.
                         (file-imports source "gnu/installer/"
                                       (const #t))
                         ;; Build-side code that we don't build.  Some of
                         ;; these depend on guile-rsvg, the Shepherd, etc.
                         (file-imports source "gnu/build" (const #t)))
                 #:guile-for-build
                 guile-for-build))

  (define *home-modules*
    (scheme-node "guix-home"
                 `((gnu home)
                   (gnu home services)
                   ,@(scheme-modules* source "gnu/home/services"))
                 (list *core-package-modules* *package-modules*
                       *extra-modules* *core-modules* *system-modules*)
                 #:extensions dependencies
                 #:guile-for-build guile-for-build))

  (define *core-cli-modules*
    ;; Core command-line interface modules that do not depend on (gnu system
    ;; …) or (gnu home …), and not even on *PACKAGE-MODULES*.
    (scheme-node "guix-cli-core"
                 (remove (match-lambda
                           (('guix 'scripts 'system . _) #t)
                           (('guix 'scripts 'environment) #t)
                           (('guix 'scripts 'container . _) #t)
                           (('guix 'scripts 'deploy) #t)
                           (('guix 'scripts 'home . _) #t)
                           (('guix 'scripts 'import . _) #t)
                           (('guix 'scripts 'gc) #t) ;autoloads (gnu home)
                           (('guix 'pack) #t)
                           (_ #f))
                         (scheme-modules* source "guix/scripts"))
                 (list *core-modules* *extra-modules*
                       *core-package-modules*)
                 #:extensions dependencies
                 #:guile-for-build guile-for-build))

  (define *cli-modules*
    (scheme-node "guix-cli"
                 (append (scheme-modules* source "/guix/scripts")
                         `((gnu ci)))
                 (list *core-modules* *extra-modules*
                       *core-package-modules* *package-modules*
                       *core-cli-modules* *system-modules* *home-modules*)
                 #:extensions dependencies
                 #:guile-for-build guile-for-build))

  (define *system-test-modules*
    ;; Ship these modules mostly so (gnu ci) can discover them.
    (scheme-node "guix-system-tests"
                 `((gnu tests)
                   ,@(scheme-modules* source "gnu/tests"))
                 (list *core-package-modules* *package-modules*
                       *extra-modules* *system-modules* *core-modules*
                       *cli-modules*)           ;for (guix scripts pack), etc.
                 #:extra-files (file-imports source "gnu/tests/data"
                                             (const #t))
                 #:extensions dependencies
                 #:guile-for-build guile-for-build))

  (define *config*
    (scheme-node "guix-config"
                 '()
                 #:extra-modules
                 `(((guix config)
                    => ,(make-config.scm #:gzip gzip
                                         #:bzip2 bzip2
                                         #:xz xz
                                         #:package-name
                                         %guix-package-name
                                         #:package-version
                                         version
                                         #:channel-metadata
                                         channel-metadata
                                         #:bug-report-address
                                         %guix-bug-report-address
                                         #:home-page-url
                                         %guix-home-page-url)))
                 #:guile-for-build guile-for-build))

  (define (built-modules node-subset)
    (directory-union (string-append name "-modules")
                     (append-map node-subset

                                 ;; Note: *CONFIG* comes first so that it
                                 ;; overrides the (guix config) module that
                                 ;; comes with *CORE-MODULES*.
                                 (list *config*
                                       *cli-modules*
                                       *core-cli-modules*
                                       *system-test-modules*
                                       *system-modules*
                                       *home-modules*
                                       *package-modules*
                                       *core-package-modules*
                                       *extra-modules*
                                       *core-modules*))

                     ;; Silently choose the first entry upon collision so that
                     ;; we choose *CONFIG*.
                     #:resolve-collision 'first

                     ;; When we do (add-to-store "utils.scm"), "utils.scm" must
                     ;; be a regular file, not a symlink.  Thus, arrange so that
                     ;; regular files appear as regular files in the final
                     ;; output.
                     #:copy? #t
                     #:quiet? #t))

  ;; Version 0 of 'guix pull' meant we'd just return Scheme modules.
  ;; Version 1 is when we return the full package.
  (cond ((= 1 pull-version)
         ;; The whole package, with a standard file hierarchy.
         (let* ((modules  (built-modules (compose list node-source+compiled)))
                (daemon   (specification->package "guix-daemon"))
                (command  (guix-command modules
                                        #:source source
                                        #:dependencies
                                        (cons* disarchive
                                               guile-lzma
                                               dependencies)
                                        #:guile guile-for-build
                                        #:guile-version guile-version)))
           (whole-package name modules dependencies
                          #:command command
                          #:guile guile-for-build

                          ;; Include 'guix-daemon'.  XXX: Here we inject an
                          ;; older snapshot of guix-daemon, but that's a good
                          ;; enough approximation for now.
                          #:daemon daemon

                          #:info (info-manual source)
                          #:miscellany (miscellaneous-files source daemon)
                          #:guile-version guile-version)))
        ((= 0 pull-version)
         ;; Legacy 'guix pull': return the .scm and .go files as one
         ;; directory.
         (built-modules (lambda (node)
                          (list (node-source node)
                                (node-compiled node)))))
        (else
         ;; Unsupported 'guix pull' version.
         #f)))

\f
;;;
;;; Generating (guix config).
;;;

(define %persona-variables
  ;; (guix config) variables that define Guix's persona.
  '(%guix-package-name
    %guix-version
    %guix-bug-report-address
    %guix-home-page-url))

(define %config-variables
  ;; (guix config) variables corresponding to Guix configuration.
  (letrec-syntax ((variables (syntax-rules ()
                               ((_)
                                '())
                               ((_ variable rest ...)
                                (cons `(variable . ,variable)
                                      (variables rest ...))))))
    (variables %localstatedir %storedir %sysconfdir)))

(define %default-config-variables
  ;; Default values of the configuration variables above.
  `((%localstatedir . "/var")
    (%storedir . "/gnu/store")
    (%sysconfdir . "/etc")))

(define* (make-config.scm #:key gzip xz bzip2
                          (package-name "GNU Guix")
                          (package-version "0")
                          (channel-metadata #f)
                          (config-variables %config-variables)
                          (bug-report-address "bug-guix@gnu.org")
                          (home-page-url "https://guix.gnu.org"))

  ;; Hack so that Geiser is not confused.
  (define defmod 'define-module)

  (scheme-file "config.scm"
               #~(;; The following expressions get spliced.
                   (#$defmod (guix config)

                     ;; Mark it as non-declarative to prevent cross-module
                     ;; inlining that could lead to inlining %GUIX-VERSION in
                     ;; (guix ui).
                     #:declarative? #f

                     #:export (%guix-package-name
                               %guix-version
                               %guix-bug-report-address
                               %guix-home-page-url
                               %channel-metadata
                               %system
                               %store-directory
                               %state-directory
                               %store-database-directory
                               %config-directory
                               %gzip
                               %bzip2
                               %xz))

                   (define %system
                     #$(%current-system))

                   #$@(map (match-lambda
                             ((name . value)
                              #~(define-public #$name #$value)))
                           config-variables)

                   (define %store-directory
                     (or (and=> (getenv "NIX_STORE_DIR") canonicalize-path)
                         %storedir))

                   (define %state-directory
                     ;; This must match `NIX_STATE_DIR' as defined in
                     ;; `nix/local.mk'.
                     (or (getenv "GUIX_STATE_DIRECTORY")
                         (string-append %localstatedir "/guix")))

                   (define %store-database-directory
                     (or (getenv "GUIX_DATABASE_DIRECTORY")
                         (string-append %state-directory "/db")))

                   (define %config-directory
                     ;; This must match `GUIX_CONFIGURATION_DIRECTORY' as
                     ;; defined in `nix/local.mk'.
                     (or (getenv "GUIX_CONFIGURATION_DIRECTORY")
                         (string-append %sysconfdir "/guix")))

                   (define %guix-package-name #$package-name)
                   (define %guix-version #$package-version)
                   (define %guix-bug-report-address #$bug-report-address)
                   (define %guix-home-page-url #$home-page-url)

                   (define %channel-metadata
                     ;; Metadata for the 'guix' channel in use.  This
                     ;; information is used by (guix describe).
                     '#$channel-metadata)

                   (define %gzip
                     #+(and gzip (file-append gzip "/bin/gzip")))
                   (define %bzip2
                     #+(and bzip2 (file-append bzip2 "/bin/bzip2")))
                   (define %xz
                     #+(and xz (file-append xz "/bin/xz"))))

               ;; Guile 2.0 *requires* the 'define-module' to be at the
               ;; top-level or the 'toplevel-ref' in the resulting .go file are
               ;; made relative to a nonexistent anonymous module.
               #:splice? #t))

\f
;;;
;;; Building.
;;;

(define* (compiled-modules name module-tree module-files
                           #:optional
                           (dependencies '())
                           (dependencies-compiled '())
                           #:key
                           (extensions '())       ;full-blown Guile packages
                           parallel?
                           guile-for-build)
  "Build all the MODULE-FILES from MODULE-TREE.  MODULE-FILES must be a list
like '(\"guix/foo.scm\" \"gnu/bar.scm\") and MODULE-TREE is the directory
containing MODULE-FILES and possibly other files as well."
  ;; This is a non-monadic, enhanced version of 'compiled-file' from (guix
  ;; gexp).
  (define build
    (with-imported-modules (source-module-closure
                            '((guix build compile)
                              (guix build utils)))
      #~(begin
          (use-modules (srfi srfi-26)
                       (ice-9 match)
                       (ice-9 format)
                       (ice-9 threads)
                       (guix build compile)
                       (guix build utils))

          (define (regular? file)
            (not (member file '("." ".."))))

          (define (report-load file total completed)
            (display #\cr)
            (format #t
                    "[~3@a/~3@a] loading...\t~5,1f% of ~d files"

                    ;; Note: Multiply TOTAL by two to account for the
                    ;; compilation phase that follows.
                    completed (* total 2)

                    (* 100. (/ completed total)) total)
            (force-output))

          (define (report-compilation file total completed)
            (display #\cr)
            (format #t "[~3@a/~3@a] compiling...\t~5,1f% of ~d files"

                    ;; Add TOTAL to account for the load phase that came
                    ;; before.
                    (+ total completed) (* total 2)

                    (* 100. (/ completed total)) total)
            (force-output))

          (define (process-directory directory files output)
            ;; Hide compilation warnings.
            (parameterize ((current-warning-port (%make-void-port "w")))
              (compile-files directory #$output files
                             #:workers (parallel-job-count)
                             #:report-load report-load
                             #:report-compilation report-compilation)))

          (setvbuf (current-output-port) 'line)
          (setvbuf (current-error-port) 'line)

          (set! %load-path (cons #+module-tree %load-path))
          (set! %load-path
            (append '#+dependencies
                    (map (lambda (extension)
                           (string-append extension "/share/guile/site/"
                                          (effective-version)))
                         '#+extensions)
                    %load-path))

          (set! %load-compiled-path
            (append '#+dependencies-compiled
                    (map (lambda (extension)
                           (string-append extension "/lib/guile/"
                                          (effective-version)
                                          "/site-ccache"))
                         '#+extensions)
                    %load-compiled-path))

          ;; Load the compiler modules upfront.
          (compile #f)

          (mkdir #$output)
          (chdir #+module-tree)
          (process-directory "." '#+module-files #$output)
          (newline))))

  (computed-file name build
                 #:guile guile-for-build
                 #:options
                 `(#:local-build? #f              ;allow substitutes

                   ;; Don't annoy people about _IONBF deprecation.
                   ;; Initialize 'terminal-width' in (system repl debug)
                   ;; to a large-enough value to make backtrace more
                   ;; verbose.
                   #:env-vars (("GUILE_WARN_DEPRECATED" . "no")
                               ("COLUMNS" . "200")))))

\f
;;;
;;; Building.
;;;

(define* (guix-derivation source version
                          #:optional (guile-version (effective-version))
                          #:key (pull-version 0)
                          channel-metadata)
  "Return, as a monadic value, the derivation to build the Guix from SOURCE
for GUILE-VERSION.  Use VERSION as the version string.  Use CHANNEL-METADATA
as the channel metadata sexp to include in (guix config).

PULL-VERSION specifies the version of the 'guix pull' protocol.  Return #f if
this PULL-VERSION value is not supported."
  (define (shorten version)
    (if (and (string-every char-set:hex-digit version)
             (> (string-length version) 9))
        (string-take version 9)                   ;Git commit
        version))

  (define guile
    ;; When PULL-VERSION >= 1, produce a self-contained Guix and use the
    ;; current Guile unconditionally.
    (specification->package "guile"))

  (when (and (< pull-version 1)
             (not (string=? (package-version guile) guile-version)))
    ;; Guix < 0.15.0 has PULL-VERSION = 0, where the host Guile is reused and
    ;; can be any version.  When that happens and Guile is not current (e.g.,
    ;; it's Guile 2.0), just bail out.
    (raise (condition
            (&message
             (message "Guix is too old and cannot be upgraded")))))

  (mbegin %store-monad
    (set-guile-for-build guile)
    (let ((guix (compiled-guix source
                               #:version version
                               #:channel-metadata channel-metadata
                               #:name (string-append "guix-"
                                                     (shorten version))
                               #:pull-version pull-version
                               #:guile-version (if (>= pull-version 1)
                                                   "3.0" guile-version)
                               #:guile-for-build guile)))
      (if guix
          (lower-object guix)
          (return #f)))))

debug log:

solving 81a36e007f ...
found 81a36e007f in https://git.savannah.gnu.org/cgit/guix.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

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