790c3e019a
Fixes <https://bugs.gnu.org/31892>. Reported by Vagrant Cascadian <vagrant@debian.org>. * build-aux/build-self.scm (build): Define 'port' and wrap 'open-pipe*' call in 'with-input-from-port'. (build-program): Use 'port->connection' or 'open-connection' instead of 'with-store.'
357 lines
15 KiB
Scheme
357 lines
15 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2014, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
|
||
;;;
|
||
;;; 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 (build-self)
|
||
#:use-module (gnu)
|
||
#:use-module (guix)
|
||
#:use-module (guix ui)
|
||
#:use-module (guix config)
|
||
#:use-module (guix modules)
|
||
#:use-module (srfi srfi-1)
|
||
#:use-module (srfi srfi-19)
|
||
#:use-module (rnrs io ports)
|
||
#:use-module (ice-9 match)
|
||
#:use-module (ice-9 popen)
|
||
#:export (build))
|
||
|
||
;;; Commentary:
|
||
;;;
|
||
;;; When loaded, this module returns a monadic procedure of at least one
|
||
;;; argument: the source tree to build. It returns a derivation that
|
||
;;; builds it.
|
||
;;;
|
||
;;; This file uses modules provided by the already-installed Guix. Those
|
||
;;; modules may be arbitrarily old compared to the version we want to
|
||
;;; build. Because of that, it must rely on the smallest set of features
|
||
;;; that are likely to be provided by the (guix) and (gnu) modules, and by
|
||
;;; Guile itself, forever and ever.
|
||
;;;
|
||
;;; Code:
|
||
|
||
|
||
;;;
|
||
;;; Generating (guix config).
|
||
;;;
|
||
;;; This is copied from (guix self) because we cannot assume (guix self) is
|
||
;;; available at this point.
|
||
;;;
|
||
|
||
(define %dependency-variables
|
||
;; (guix config) variables corresponding to dependencies.
|
||
'(%libgcrypt %libz %xz %gzip %bzip2))
|
||
|
||
(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 %system)))
|
||
|
||
(define* (make-config.scm #:key libgcrypt zlib gzip xz bzip2
|
||
(package-name "GNU Guix")
|
||
(package-version "0")
|
||
(bug-report-address "bug-guix@gnu.org")
|
||
(home-page-url "https://gnu.org/s/guix"))
|
||
|
||
;; Hack so that Geiser is not confused.
|
||
(define defmod 'define-module)
|
||
|
||
(scheme-file "config.scm"
|
||
#~(begin
|
||
(#$defmod (guix config)
|
||
#:export (%guix-package-name
|
||
%guix-version
|
||
%guix-bug-report-address
|
||
%guix-home-page-url
|
||
%store-directory
|
||
%state-directory
|
||
%store-database-directory
|
||
%config-directory
|
||
%libgcrypt
|
||
%libz
|
||
%gzip
|
||
%bzip2
|
||
%xz))
|
||
|
||
;; XXX: Work around <http://bugs.gnu.org/15602>.
|
||
(eval-when (expand load eval)
|
||
#$@(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 "NIX_STATE_DIR")
|
||
(string-append %localstatedir "/guix")))
|
||
|
||
(define %store-database-directory
|
||
(or (getenv "NIX_DB_DIR")
|
||
(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 %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")))
|
||
|
||
(define %libgcrypt
|
||
#+(and libgcrypt
|
||
(file-append libgcrypt "/lib/libgcrypt")))
|
||
(define %libz
|
||
#+(and zlib
|
||
(file-append zlib "/lib/libz")))))))
|
||
|
||
|
||
;;;
|
||
;;; 'gexp->script'.
|
||
;;;
|
||
;;; This is our own variant of 'gexp->script' with an extra #:module-path
|
||
;;; parameter, which was unavailable in (guix gexp) until commit
|
||
;;; 1ae16033f34cebe802023922436883867010850f (March 2018.)
|
||
;;;
|
||
|
||
(define (load-path-expression modules path)
|
||
"Return as a monadic value a gexp that sets '%load-path' and
|
||
'%load-compiled-path' to point to MODULES, a list of module names. MODULES
|
||
are searched for in PATH."
|
||
(mlet %store-monad ((modules (imported-modules modules
|
||
#:module-path path))
|
||
(compiled (compiled-modules modules
|
||
#:module-path path)))
|
||
(return (gexp (eval-when (expand load eval)
|
||
(set! %load-path
|
||
(cons (ungexp modules) %load-path))
|
||
(set! %load-compiled-path
|
||
(cons (ungexp compiled)
|
||
%load-compiled-path)))))))
|
||
|
||
(define* (gexp->script name exp
|
||
#:key (guile (default-guile))
|
||
(module-path %load-path))
|
||
"Return an executable script NAME that runs EXP using GUILE, with EXP's
|
||
imported modules in its search path."
|
||
(mlet %store-monad ((set-load-path
|
||
(load-path-expression (gexp-modules exp)
|
||
module-path)))
|
||
(gexp->derivation name
|
||
(gexp
|
||
(call-with-output-file (ungexp output)
|
||
(lambda (port)
|
||
;; Note: that makes a long shebang. When the store
|
||
;; is /gnu/store, that fits within the 128-byte
|
||
;; limit imposed by Linux, but that may go beyond
|
||
;; when running tests.
|
||
(format port
|
||
"#!~a/bin/guile --no-auto-compile~%!#~%"
|
||
(ungexp guile))
|
||
|
||
(write '(ungexp set-load-path) port)
|
||
(write '(ungexp exp) port)
|
||
(chmod port #o555))))
|
||
#:module-path module-path)))
|
||
|
||
|
||
(define (date-version-string)
|
||
"Return the current date and hour in UTC timezone, for use as a poor
|
||
person's version identifier."
|
||
;; XXX: Replace with a Git commit id.
|
||
(date->string (current-date 0) "~Y~m~d.~H"))
|
||
|
||
(define* (build-program source version
|
||
#:optional (guile-version (effective-version))
|
||
#:key (pull-version 0))
|
||
"Return a program that computes the derivation to build Guix from SOURCE."
|
||
(define select?
|
||
;; Select every module but (guix config) and non-Guix modules.
|
||
(match-lambda
|
||
(('guix 'config) #f)
|
||
(('guix _ ...) #t)
|
||
(('gnu _ ...) #t)
|
||
(_ #f)))
|
||
|
||
(with-imported-modules `(((guix config)
|
||
=> ,(make-config.scm
|
||
#:libgcrypt
|
||
(specification->package "libgcrypt")))
|
||
,@(source-module-closure `((guix store)
|
||
(guix self)
|
||
(guix derivations)
|
||
(gnu packages bootstrap))
|
||
(list source)
|
||
#:select? select?))
|
||
(gexp->script "compute-guix-derivation"
|
||
#~(begin
|
||
(use-modules (ice-9 match))
|
||
|
||
(eval-when (expand load eval)
|
||
;; Don't augment '%load-path'.
|
||
(unsetenv "GUIX_PACKAGE_PATH")
|
||
|
||
;; (gnu packages …) modules are going to be looked up
|
||
;; under SOURCE. (guix config) is looked up in FRONT.
|
||
(match (command-line)
|
||
((_ source _ ...)
|
||
(match %load-path
|
||
((front _ ...)
|
||
(unless (string=? front source) ;already done?
|
||
(set! %load-path (list source front)))))))
|
||
|
||
;; Only load our own modules or those of Guile.
|
||
(match %load-compiled-path
|
||
((front _ ... sys1 sys2)
|
||
(set! %load-compiled-path
|
||
(list front sys1 sys2)))))
|
||
|
||
(use-modules (guix store)
|
||
(guix self)
|
||
(guix derivations)
|
||
(srfi srfi-1))
|
||
|
||
(define (spin system)
|
||
(define spin
|
||
(circular-list "-" "\\" "|" "/" "-" "\\" "|" "/"))
|
||
|
||
(format (current-error-port)
|
||
"Computing Guix derivation for '~a'... "
|
||
system)
|
||
(let loop ((spin spin))
|
||
(display (string-append "\b" (car spin))
|
||
(current-error-port))
|
||
(force-output (current-error-port))
|
||
(sleep 1)
|
||
(loop (cdr spin))))
|
||
|
||
(match (command-line)
|
||
((_ source system version protocol-version)
|
||
;; The current input port normally wraps a file
|
||
;; descriptor connected to the daemon, or it is
|
||
;; connected to /dev/null. In the former case, reuse
|
||
;; the connection such that we inherit build options
|
||
;; such as substitute URLs and so on; in the latter
|
||
;; case, attempt to open a new connection.
|
||
(let* ((proto (string->number protocol-version))
|
||
(store (if (integer? proto)
|
||
(port->connection (duplicate-port
|
||
(current-input-port)
|
||
"w+0")
|
||
#:version proto)
|
||
(open-connection))))
|
||
(call-with-new-thread
|
||
(lambda ()
|
||
(spin system)))
|
||
|
||
(display
|
||
(and=>
|
||
(run-with-store store
|
||
(guix-derivation source version
|
||
#$guile-version
|
||
#:pull-version
|
||
#$pull-version)
|
||
#:system system)
|
||
derivation-file-name))))))
|
||
#:module-path (list source))))
|
||
|
||
;; The procedure below is our return value.
|
||
(define* (build source
|
||
#:key verbose? (version (date-version-string)) system
|
||
(guile-version (match ((@ (guile) version))
|
||
("2.2.2" "2.2.2")
|
||
(_ (effective-version))))
|
||
(pull-version 0)
|
||
#:allow-other-keys
|
||
#:rest rest)
|
||
"Return a derivation that unpacks SOURCE into STORE and compiles Scheme
|
||
files."
|
||
;; Build the build program and then use it as a trampoline to build from
|
||
;; SOURCE.
|
||
(mlet %store-monad ((build (build-program source version guile-version
|
||
#:pull-version pull-version))
|
||
(system (if system (return system) (current-system)))
|
||
(port ((store-lift nix-server-socket)))
|
||
(major ((store-lift nix-server-major-version)))
|
||
(minor ((store-lift nix-server-minor-version))))
|
||
(mbegin %store-monad
|
||
(show-what-to-build* (list build))
|
||
(built-derivations (list build))
|
||
|
||
;; Use the port beneath the current store as the stdin of BUILD. This
|
||
;; way, we know 'open-pipe*' will not close it on 'exec'. If PORT is
|
||
;; not a file port (e.g., it's an SSH channel), then the subprocess's
|
||
;; stdin will actually be /dev/null.
|
||
(let* ((pipe (with-input-from-port port
|
||
(lambda ()
|
||
(setenv "GUILE_WARN_DEPRECATED" "no") ;be quiet and drive
|
||
(open-pipe* OPEN_READ
|
||
(derivation->output-path build)
|
||
source system version
|
||
(if (file-port? port)
|
||
(number->string
|
||
(logior major minor))
|
||
"none")))))
|
||
(str (get-string-all pipe))
|
||
(status (close-pipe pipe)))
|
||
(match str
|
||
((? eof-object?)
|
||
(error "build program failed" (list build status)))
|
||
((? derivation-path? drv)
|
||
(mbegin %store-monad
|
||
(return (newline (current-output-port)))
|
||
((store-lift add-temp-root) drv)
|
||
(return (read-derivation-from-file drv))))
|
||
("#f"
|
||
;; Unsupported PULL-VERSION.
|
||
(return #f))
|
||
((? string? str)
|
||
(error "invalid build result" (list build str))))))))
|
||
|
||
;; This file is loaded by 'guix pull'; return it the build procedure.
|
||
build
|
||
|
||
;; Local Variables:
|
||
;; eval: (put 'with-load-path 'scheme-indent-function 1)
|
||
;; End:
|
||
|
||
;;; build-self.scm ends here
|