815 lines
33 KiB
Scheme
815 lines
33 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
|
||
;;; Copyright © 2018 Mark H Weaver <mhw@netris.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.
|
||
;;;
|
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;;; You should have received a copy of the GNU General Public License
|
||
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
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(define-module (guix build gnu-build-system)
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#:use-module (guix build utils)
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#:use-module (guix build gremlin)
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#:use-module (guix elf)
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#:use-module (ice-9 ftw)
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||
#:use-module (ice-9 match)
|
||
#:use-module (ice-9 regex)
|
||
#:use-module (ice-9 format)
|
||
#:use-module (srfi srfi-1)
|
||
#:use-module (srfi srfi-19)
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||
#:use-module (srfi srfi-34)
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||
#:use-module (srfi srfi-35)
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||
#:use-module (srfi srfi-26)
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#:use-module (rnrs io ports)
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#:export (%standard-phases
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||
%license-file-regexp
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||
dump-file-contents
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||
gnu-build))
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||
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||
;; Commentary:
|
||
;;
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||
;; Standard build procedure for packages using the GNU Build System or
|
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;; something compatible ("./configure && make && make install"). This is the
|
||
;; builder-side code.
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||
;;
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||
;; Code:
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||
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(cond-expand
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||
(guile-2.2
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;; Guile 2.2.2 has a bug whereby 'time-monotonic' objects have seconds and
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||
;; nanoseconds swapped (fixed in Guile commit 886ac3e). Work around it.
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||
(define time-monotonic time-tai))
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||
(else #t))
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||
|
||
(define* (set-SOURCE-DATE-EPOCH #:rest _)
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||
"Set the 'SOURCE_DATE_EPOCH' environment variable. This is used by tools
|
||
that incorporate timestamps as a way to tell them to use a fixed timestamp.
|
||
See https://reproducible-builds.org/specs/source-date-epoch/."
|
||
(setenv "SOURCE_DATE_EPOCH" "1")
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||
#t)
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||
|
||
(define (first-subdirectory dir)
|
||
"Return the path of the first sub-directory of DIR."
|
||
(file-system-fold (lambda (path stat result)
|
||
(string=? path dir))
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||
(lambda (path stat result) result) ; leaf
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||
(lambda (path stat result) result) ; down
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||
(lambda (path stat result) result) ; up
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||
(lambda (path stat result) ; skip
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||
(or result path))
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||
(lambda (path stat errno result) ; error
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(error "first-subdirectory" (strerror errno)))
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#f
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||
dir))
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||
|
||
(define* (set-paths #:key target inputs native-inputs
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||
(search-paths '()) (native-search-paths '())
|
||
#:allow-other-keys)
|
||
(define input-directories
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||
(match inputs
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||
(((_ . dir) ...)
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||
dir)))
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||
|
||
(define native-input-directories
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||
(match native-inputs
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||
(((_ . dir) ...)
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||
dir)
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||
(#f ; not cross compiling
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||
'())))
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||
|
||
;; When cross building, $PATH must refer only to native (host) inputs since
|
||
;; target inputs are not executable.
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||
(set-path-environment-variable "PATH" '("bin" "sbin")
|
||
(append native-input-directories
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||
(if target
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||
'()
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||
input-directories)))
|
||
|
||
(for-each (match-lambda
|
||
((env-var (files ...) separator type pattern)
|
||
(set-path-environment-variable env-var files
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||
input-directories
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||
#:separator separator
|
||
#:type type
|
||
#:pattern pattern)))
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||
search-paths)
|
||
|
||
(when native-search-paths
|
||
;; Search paths for native inputs, when cross building.
|
||
(for-each (match-lambda
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||
((env-var (files ...) separator type pattern)
|
||
(set-path-environment-variable env-var files
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||
native-input-directories
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||
#:separator separator
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||
#:type type
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||
#:pattern pattern)))
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||
native-search-paths))
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||
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||
#t)
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||
|
||
(define* (install-locale #:key
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||
(locale "en_US.utf8")
|
||
(locale-category LC_ALL)
|
||
#:allow-other-keys)
|
||
"Try to install LOCALE; emit a warning if that fails. The main goal is to
|
||
use a UTF-8 locale so that Guile correctly interprets UTF-8 file names.
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||
|
||
This phase must typically happen after 'set-paths' so that $LOCPATH has a
|
||
chance to be set."
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(setlocale locale-category locale)
|
||
|
||
;; While we're at it, pass it to sub-processes.
|
||
(setenv (locale-category->string locale-category) locale)
|
||
|
||
(format (current-error-port) "using '~a' locale for category ~s~%"
|
||
locale (locale-category->string locale-category))
|
||
#t)
|
||
(lambda args
|
||
;; This is known to fail for instance in early bootstrap where locales
|
||
;; are not available.
|
||
(format (current-error-port)
|
||
"warning: failed to install '~a' locale: ~a~%"
|
||
locale (strerror (system-error-errno args)))
|
||
#t)))
|
||
|
||
(define* (unpack #:key source #:allow-other-keys)
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||
"Unpack SOURCE in the working directory, and change directory within the
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||
source. When SOURCE is a directory, copy it in a sub-directory of the current
|
||
working directory."
|
||
(if (file-is-directory? source)
|
||
(begin
|
||
(mkdir "source")
|
||
(chdir "source")
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||
|
||
;; Preserve timestamps (set to the Epoch) on the copied tree so that
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||
;; things work deterministically.
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||
(copy-recursively source "."
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#:keep-mtime? #t))
|
||
(begin
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||
(if (string-suffix? ".zip" source)
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(invoke "unzip" source)
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||
(invoke "tar" "xvf" source))
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(chdir (first-subdirectory "."))))
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||
#t)
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||
|
||
(define %bootstrap-scripts
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||
;; Typical names of Autotools "bootstrap" scripts.
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||
'("bootstrap" "bootstrap.sh" "autogen.sh"))
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||
|
||
(define* (bootstrap #:key (bootstrap-scripts %bootstrap-scripts)
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||
#:allow-other-keys)
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||
"If the code uses Autotools and \"configure\" is missing, run
|
||
\"autoreconf\". Otherwise do nothing."
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||
;; Note: Run that right after 'unpack' so that the generated files are
|
||
;; visible when the 'patch-source-shebangs' phase runs.
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||
(if (not (file-exists? "configure"))
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||
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||
;; First try one of the BOOTSTRAP-SCRIPTS. If none exists, and it's
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||
;; clearly an Autoconf-based project, run 'autoreconf'. Otherwise, do
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||
;; nothing (perhaps the user removed or overrode the 'configure' phase.)
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||
(let ((script (find file-exists? bootstrap-scripts)))
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||
;; GNU packages often invoke the 'git-version-gen' script from
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||
;; 'configure.ac' so make sure it has a valid shebang.
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||
(false-if-file-not-found
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||
(patch-shebang "build-aux/git-version-gen"))
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||
|
||
(if script
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||
(let ((script (string-append "./" script)))
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||
(format #t "running '~a'~%" script)
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(if (executable-file? script)
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||
(begin
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||
(patch-shebang script)
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||
(invoke script))
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||
(invoke "sh" script)))
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||
(if (or (file-exists? "configure.ac")
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||
(file-exists? "configure.in"))
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||
(invoke "autoreconf" "-vif")
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||
(format #t "no 'configure.ac' or anything like that, \
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||
doing nothing~%"))))
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||
(format #t "GNU build system bootstrapping not needed~%"))
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||
#t)
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||
|
||
;; See <http://bugs.gnu.org/17840>.
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||
(define* (patch-usr-bin-file #:key native-inputs inputs
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||
(patch-/usr/bin/file? #t)
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||
#:allow-other-keys)
|
||
"Patch occurrences of \"/usr/bin/file\" in all the executable 'configure'
|
||
files found in the source tree. This works around Libtool's Autoconf macros,
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||
which generates invocations of \"/usr/bin/file\" that are used to determine
|
||
things like the ABI being used."
|
||
(when patch-/usr/bin/file?
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||
(for-each (lambda (file)
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||
(when (executable-file? file)
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||
(patch-/usr/bin/file file)))
|
||
(find-files "." "^configure$")))
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||
#t)
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||
|
||
(define* (patch-source-shebangs #:key source #:allow-other-keys)
|
||
"Patch shebangs in all source files; this includes non-executable
|
||
files such as `.in' templates. Most scripts honor $SHELL and
|
||
$CONFIG_SHELL, but some don't, such as `mkinstalldirs' or Automake's
|
||
`missing' script."
|
||
(for-each patch-shebang
|
||
(find-files "."
|
||
(lambda (file stat)
|
||
;; Filter out symlinks.
|
||
(eq? 'regular (stat:type stat)))
|
||
#:stat lstat))
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||
#t)
|
||
|
||
(define (patch-generated-file-shebangs . rest)
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||
"Patch shebangs in generated files, including `SHELL' variables in
|
||
makefiles."
|
||
;; Patch executable regular files, some of which might have been generated
|
||
;; by `configure'.
|
||
(for-each patch-shebang
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||
(find-files "."
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||
(lambda (file stat)
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||
(and (eq? 'regular (stat:type stat))
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||
(not (zero? (logand (stat:mode stat) #o100)))))
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||
#:stat lstat))
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||
|
||
;; Patch `SHELL' in generated makefiles.
|
||
(for-each patch-makefile-SHELL (find-files "." "^(GNU)?[mM]akefile$"))
|
||
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||
#t)
|
||
|
||
(define* (configure #:key build target native-inputs inputs outputs
|
||
(configure-flags '()) out-of-source?
|
||
#:allow-other-keys)
|
||
(define (package-name)
|
||
(let* ((out (assoc-ref outputs "out"))
|
||
(base (basename out))
|
||
(dash (string-rindex base #\-)))
|
||
;; XXX: We'd rather use `package-name->name+version' or similar.
|
||
(string-drop (if dash
|
||
(substring base 0 dash)
|
||
base)
|
||
(+ 1 (string-index base #\-)))))
|
||
|
||
(let* ((prefix (assoc-ref outputs "out"))
|
||
(bindir (assoc-ref outputs "bin"))
|
||
(libdir (assoc-ref outputs "lib"))
|
||
(includedir (assoc-ref outputs "include"))
|
||
(docdir (assoc-ref outputs "doc"))
|
||
(bash (or (and=> (assoc-ref (or native-inputs inputs) "bash")
|
||
(cut string-append <> "/bin/bash"))
|
||
"/bin/sh"))
|
||
(flags `(,@(if target ; cross building
|
||
'("CC_FOR_BUILD=gcc")
|
||
'())
|
||
,(string-append "CONFIG_SHELL=" bash)
|
||
,(string-append "SHELL=" bash)
|
||
,(string-append "--prefix=" prefix)
|
||
"--enable-fast-install" ; when using Libtool
|
||
|
||
;; Produce multiple outputs when specific output names
|
||
;; are recognized.
|
||
,@(if bindir
|
||
(list (string-append "--bindir=" bindir "/bin"))
|
||
'())
|
||
,@(if libdir
|
||
(cons (string-append "--libdir=" libdir "/lib")
|
||
(if includedir
|
||
'()
|
||
(list
|
||
(string-append "--includedir="
|
||
libdir "/include"))))
|
||
'())
|
||
,@(if includedir
|
||
(list (string-append "--includedir="
|
||
includedir "/include"))
|
||
'())
|
||
,@(if docdir
|
||
(list (string-append "--docdir=" docdir
|
||
"/share/doc/" (package-name)))
|
||
'())
|
||
,@(if build
|
||
(list (string-append "--build=" build))
|
||
'())
|
||
,@(if target ; cross building
|
||
(list (string-append "--host=" target))
|
||
'())
|
||
,@configure-flags))
|
||
(abs-srcdir (getcwd))
|
||
(srcdir (if out-of-source?
|
||
(string-append "../" (basename abs-srcdir))
|
||
".")))
|
||
(format #t "source directory: ~s (relative from build: ~s)~%"
|
||
abs-srcdir srcdir)
|
||
(if out-of-source?
|
||
(begin
|
||
(mkdir "../build")
|
||
(chdir "../build")))
|
||
(format #t "build directory: ~s~%" (getcwd))
|
||
(format #t "configure flags: ~s~%" flags)
|
||
|
||
;; Use BASH to reduce reliance on /bin/sh since it may not always be
|
||
;; reliable (see
|
||
;; <http://thread.gmane.org/gmane.linux.distributions.nixos/9748>
|
||
;; for a summary of the situation.)
|
||
;;
|
||
;; Call `configure' with a relative path. Otherwise, GCC's build system
|
||
;; (for instance) records absolute source file names, which typically
|
||
;; contain the hash part of the `.drv' file, leading to a reference leak.
|
||
(apply invoke bash
|
||
(string-append srcdir "/configure")
|
||
flags)))
|
||
|
||
(define* (build #:key (make-flags '()) (parallel-build? #t)
|
||
#:allow-other-keys)
|
||
(apply invoke "make"
|
||
`(,@(if parallel-build?
|
||
`("-j" ,(number->string (parallel-job-count)))
|
||
'())
|
||
,@make-flags)))
|
||
|
||
(define* (dump-file-contents directory file-regexp
|
||
#:optional (port (current-error-port)))
|
||
"Dump to PORT the contents of files in DIRECTORY that match FILE-REGEXP."
|
||
(define (dump file)
|
||
(let ((prefix (string-append "\n--- " file " ")))
|
||
(display (if (< (string-length prefix) 78)
|
||
(string-pad-right prefix 78 #\-)
|
||
prefix)
|
||
port)
|
||
(display "\n\n" port)
|
||
(call-with-input-file file
|
||
(lambda (log)
|
||
(dump-port log port)))
|
||
(display "\n" port)))
|
||
|
||
(for-each dump (find-files directory file-regexp)))
|
||
|
||
(define %test-suite-log-regexp
|
||
;; Name of test suite log files as commonly found in GNU-based build systems
|
||
;; and CMake.
|
||
"^(test-?suite\\.log|LastTestFailed\\.log)$")
|
||
|
||
(define* (check #:key target (make-flags '()) (tests? (not target))
|
||
(test-target "check") (parallel-tests? #t)
|
||
(test-suite-log-regexp %test-suite-log-regexp)
|
||
#:allow-other-keys)
|
||
(if tests?
|
||
(guard (c ((invoke-error? c)
|
||
;; Dump the test suite log to facilitate debugging.
|
||
(display "\nTest suite failed, dumping logs.\n"
|
||
(current-error-port))
|
||
(dump-file-contents "." test-suite-log-regexp)
|
||
(raise c)))
|
||
(apply invoke "make" test-target
|
||
`(,@(if parallel-tests?
|
||
`("-j" ,(number->string (parallel-job-count)))
|
||
'())
|
||
,@make-flags)))
|
||
(format #t "test suite not run~%"))
|
||
#t)
|
||
|
||
(define* (install #:key (make-flags '()) #:allow-other-keys)
|
||
(apply invoke "make" "install" make-flags))
|
||
|
||
(define* (patch-shebangs #:key inputs outputs (patch-shebangs? #t)
|
||
#:allow-other-keys)
|
||
(define (list-of-files dir)
|
||
(map (cut string-append dir "/" <>)
|
||
(or (scandir dir (lambda (f)
|
||
(let ((s (lstat (string-append dir "/" f))))
|
||
(eq? 'regular (stat:type s)))))
|
||
'())))
|
||
|
||
(define bin-directories
|
||
(match-lambda
|
||
((_ . dir)
|
||
(list (string-append dir "/bin")
|
||
(string-append dir "/sbin")))))
|
||
|
||
(define output-bindirs
|
||
(append-map bin-directories outputs))
|
||
|
||
(define input-bindirs
|
||
;; Shebangs should refer to binaries of the target system---i.e., from
|
||
;; "inputs", not from "native-inputs".
|
||
(append-map bin-directories inputs))
|
||
|
||
(when patch-shebangs?
|
||
(let ((path (append output-bindirs input-bindirs)))
|
||
(for-each (lambda (dir)
|
||
(let ((files (list-of-files dir)))
|
||
(for-each (cut patch-shebang <> path) files)))
|
||
output-bindirs)))
|
||
#t)
|
||
|
||
(define* (strip #:key target outputs (strip-binaries? #t)
|
||
(strip-command (if target
|
||
(string-append target "-strip")
|
||
"strip"))
|
||
(objcopy-command (if target
|
||
(string-append target "-objcopy")
|
||
"objcopy"))
|
||
(strip-flags '("--strip-debug"
|
||
"--enable-deterministic-archives"))
|
||
(strip-directories '("lib" "lib64" "libexec"
|
||
"bin" "sbin"))
|
||
#:allow-other-keys)
|
||
(define debug-output
|
||
;; If an output is called "debug", then that's where debugging information
|
||
;; will be stored instead of being discarded.
|
||
(assoc-ref outputs "debug"))
|
||
|
||
(define debug-file-extension
|
||
;; File name extension for debugging information.
|
||
".debug")
|
||
|
||
(define (debug-file file)
|
||
;; Return the name of the debug file for FILE, an absolute file name.
|
||
;; Once installed in the user's profile, it is in $PROFILE/lib/debug/FILE,
|
||
;; which is where GDB looks for it (info "(gdb) Separate Debug Files").
|
||
(string-append debug-output "/lib/debug/"
|
||
file debug-file-extension))
|
||
|
||
(define (make-debug-file file)
|
||
;; Create a file in DEBUG-OUTPUT containing the debugging info of FILE.
|
||
(let ((debug (debug-file file)))
|
||
(mkdir-p (dirname debug))
|
||
(copy-file file debug)
|
||
(invoke strip-command "--only-keep-debug" debug)
|
||
(chmod debug #o400)))
|
||
|
||
(define (add-debug-link file)
|
||
;; Add a debug link in FILE (info "(binutils) strip").
|
||
|
||
;; `objcopy --add-gnu-debuglink' wants to have the target of the debug
|
||
;; link around so it can compute a CRC of that file (see the
|
||
;; `bfd_fill_in_gnu_debuglink_section' function.) No reference to
|
||
;; DEBUG-OUTPUT is kept because bfd keeps only the basename of the debug
|
||
;; file.
|
||
(invoke objcopy-command "--enable-deterministic-archives"
|
||
(string-append "--add-gnu-debuglink="
|
||
(debug-file file))
|
||
file))
|
||
|
||
(define (strip-dir dir)
|
||
(format #t "stripping binaries in ~s with ~s and flags ~s~%"
|
||
dir strip-command strip-flags)
|
||
(when debug-output
|
||
(format #t "debugging output written to ~s using ~s~%"
|
||
debug-output objcopy-command))
|
||
|
||
(for-each (lambda (file)
|
||
(when (or (elf-file? file) (ar-file? file))
|
||
;; If an error occurs while processing a file, issue a
|
||
;; warning and continue to the next file.
|
||
(guard (c ((invoke-error? c)
|
||
(format (current-error-port)
|
||
"warning: ~a: program ~s exited\
|
||
~@[ with non-zero exit status ~a~]\
|
||
~@[ terminated by signal ~a~]~%"
|
||
file
|
||
(invoke-error-program c)
|
||
(invoke-error-exit-status c)
|
||
(invoke-error-term-signal c))))
|
||
(when debug-output
|
||
(make-debug-file file))
|
||
|
||
;; Ensure the file is writable.
|
||
(make-file-writable file)
|
||
|
||
(apply invoke strip-command
|
||
(append strip-flags (list file)))
|
||
|
||
(when debug-output
|
||
(add-debug-link file)))))
|
||
(find-files dir
|
||
(lambda (file stat)
|
||
;; Ignore symlinks such as:
|
||
;; libfoo.so -> libfoo.so.0.0.
|
||
(eq? 'regular (stat:type stat)))
|
||
#:stat lstat)))
|
||
|
||
(when strip-binaries?
|
||
(for-each
|
||
strip-dir
|
||
(append-map (match-lambda
|
||
((_ . dir)
|
||
(filter-map (lambda (d)
|
||
(let ((sub (string-append dir "/" d)))
|
||
(and (directory-exists? sub) sub)))
|
||
strip-directories)))
|
||
outputs)))
|
||
#t)
|
||
|
||
(define* (validate-runpath #:key
|
||
(validate-runpath? #t)
|
||
(elf-directories '("lib" "lib64" "libexec"
|
||
"bin" "sbin"))
|
||
outputs #:allow-other-keys)
|
||
"When VALIDATE-RUNPATH? is true, validate that all the ELF files in
|
||
ELF-DIRECTORIES have their dependencies found in their 'RUNPATH'.
|
||
|
||
Since the ELF parser needs to have a copy of files in memory, better run this
|
||
phase after stripping."
|
||
(define (sub-directory parent)
|
||
(lambda (directory)
|
||
(let ((directory (string-append parent "/" directory)))
|
||
(and (directory-exists? directory) directory))))
|
||
|
||
(define (validate directory)
|
||
(define (file=? file1 file2)
|
||
(let ((st1 (stat file1))
|
||
(st2 (stat file2)))
|
||
(= (stat:ino st1) (stat:ino st2))))
|
||
|
||
;; There are always symlinks from '.so' to '.so.1' and so on, so delete
|
||
;; duplicates.
|
||
(let ((files (delete-duplicates (find-files directory (lambda (file stat)
|
||
(elf-file? file)))
|
||
file=?)))
|
||
(format (current-error-port)
|
||
"validating RUNPATH of ~a binaries in ~s...~%"
|
||
(length files) directory)
|
||
(every* validate-needed-in-runpath files)))
|
||
|
||
(if validate-runpath?
|
||
(let ((dirs (append-map (match-lambda
|
||
(("debug" . _)
|
||
;; The "debug" output is full of ELF files
|
||
;; that are not worth checking.
|
||
'())
|
||
((name . output)
|
||
(filter-map (sub-directory output)
|
||
elf-directories)))
|
||
outputs)))
|
||
(unless (every* validate dirs)
|
||
(error "RUNPATH validation failed")))
|
||
(format (current-error-port) "skipping RUNPATH validation~%"))
|
||
|
||
#t)
|
||
|
||
(define* (validate-documentation-location #:key outputs
|
||
#:allow-other-keys)
|
||
"Documentation should go to 'share/info' and 'share/man', not just 'info/'
|
||
and 'man/'. This phase moves directories to the right place if needed."
|
||
(define (validate-sub-directory output sub-directory)
|
||
(let ((directory (string-append output "/" sub-directory)))
|
||
(when (directory-exists? directory)
|
||
(let ((target (string-append output "/share/" sub-directory)))
|
||
(format #t "moving '~a' to '~a'~%" directory target)
|
||
(mkdir-p (dirname target))
|
||
(rename-file directory target)))))
|
||
|
||
(define (validate-output output)
|
||
(for-each (cut validate-sub-directory output <>)
|
||
'("man" "info")))
|
||
|
||
(match outputs
|
||
(((names . directories) ...)
|
||
(for-each validate-output directories)))
|
||
#t)
|
||
|
||
(define* (reset-gzip-timestamps #:key outputs #:allow-other-keys)
|
||
"Reset embedded timestamps in gzip files found in OUTPUTS."
|
||
(define (process-directory directory)
|
||
(let ((files (find-files directory
|
||
(lambda (file stat)
|
||
(and (eq? 'regular (stat:type stat))
|
||
(or (string-suffix? ".gz" file)
|
||
(string-suffix? ".tgz" file))
|
||
(gzip-file? file)))
|
||
#:stat lstat)))
|
||
(for-each reset-gzip-timestamp files)))
|
||
|
||
(match outputs
|
||
(((names . directories) ...)
|
||
(for-each process-directory directories)))
|
||
#t)
|
||
|
||
(define* (compress-documentation #:key outputs
|
||
(compress-documentation? #t)
|
||
(documentation-compressor "gzip")
|
||
(documentation-compressor-flags
|
||
'("--best" "--no-name"))
|
||
(compressed-documentation-extension ".gz")
|
||
#:allow-other-keys)
|
||
"When COMPRESS-DOCUMENTATION? is true, compress man pages and Info files
|
||
found in OUTPUTS using DOCUMENTATION-COMPRESSOR, called with
|
||
DOCUMENTATION-COMPRESSOR-FLAGS."
|
||
(define (retarget-symlink link)
|
||
(let ((target (readlink link)))
|
||
(delete-file link)
|
||
(symlink (string-append target compressed-documentation-extension)
|
||
link)))
|
||
|
||
(define (has-links? file)
|
||
;; Return #t if FILE has hard links.
|
||
(> (stat:nlink (lstat file)) 1))
|
||
|
||
(define (points-to-symlink? symlink)
|
||
;; Return #t if SYMLINK points to another symbolic link.
|
||
(let* ((target (readlink symlink))
|
||
(target-absolute (if (string-prefix? "/" target)
|
||
target
|
||
(string-append (dirname symlink)
|
||
"/" target))))
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(symbolic-link? target-absolute))
|
||
(lambda args
|
||
(if (= ENOENT (system-error-errno args))
|
||
(begin
|
||
(format (current-error-port)
|
||
"The symbolic link '~a' target is missing: '~a'\n"
|
||
symlink target-absolute)
|
||
#f)
|
||
(apply throw args))))))
|
||
|
||
(define (maybe-compress-directory directory regexp)
|
||
(when (directory-exists? directory)
|
||
(match (find-files directory regexp)
|
||
(() ;nothing to compress
|
||
#t)
|
||
((files ...) ;one or more files
|
||
(format #t
|
||
"compressing documentation in '~a' with ~s and flags ~s~%"
|
||
directory documentation-compressor
|
||
documentation-compressor-flags)
|
||
(call-with-values
|
||
(lambda ()
|
||
(partition symbolic-link? files))
|
||
(lambda (symlinks regular-files)
|
||
;; Compress the non-symlink files, and adjust symlinks to refer
|
||
;; to the compressed files. Leave files that have hard links
|
||
;; unchanged ('gzip' would refuse to compress them anyway.)
|
||
;; Also, do not retarget symbolic links pointing to other
|
||
;; symbolic links, since these are not compressed.
|
||
(for-each retarget-symlink
|
||
(filter (lambda (symlink)
|
||
(and (not (points-to-symlink? symlink))
|
||
(string-match regexp symlink)))
|
||
symlinks))
|
||
(apply invoke documentation-compressor
|
||
(append documentation-compressor-flags
|
||
(remove has-links? regular-files)))))))))
|
||
|
||
(define (maybe-compress output)
|
||
(maybe-compress-directory (string-append output "/share/man")
|
||
"\\.[0-9]+$")
|
||
(maybe-compress-directory (string-append output "/share/info")
|
||
"\\.info(-[0-9]+)?$"))
|
||
|
||
(if compress-documentation?
|
||
(match outputs
|
||
(((names . directories) ...)
|
||
(for-each maybe-compress directories)))
|
||
(format #t "not compressing documentation~%"))
|
||
#t)
|
||
|
||
(define* (delete-info-dir-file #:key outputs #:allow-other-keys)
|
||
"Delete any 'share/info/dir' file from OUTPUTS."
|
||
(for-each (match-lambda
|
||
((output . directory)
|
||
(let ((info-dir-file (string-append directory "/share/info/dir")))
|
||
(when (file-exists? info-dir-file)
|
||
(delete-file info-dir-file)))))
|
||
outputs)
|
||
#t)
|
||
|
||
|
||
(define* (patch-dot-desktop-files #:key outputs inputs #:allow-other-keys)
|
||
"Replace any references to executables in '.desktop' files with their
|
||
absolute file names."
|
||
(define bin-directories
|
||
(append-map (match-lambda
|
||
((_ . directory)
|
||
(list (string-append directory "/bin")
|
||
(string-append directory "/sbin"))))
|
||
outputs))
|
||
|
||
(define (which program)
|
||
(or (search-path bin-directories program)
|
||
(begin
|
||
(format (current-error-port)
|
||
"warning: '.desktop' file refers to '~a', \
|
||
which cannot be found~%"
|
||
program)
|
||
program)))
|
||
|
||
(for-each (match-lambda
|
||
((_ . directory)
|
||
(let ((applications (string-append directory
|
||
"/share/applications")))
|
||
(when (directory-exists? applications)
|
||
(let ((files (find-files applications "\\.desktop$")))
|
||
(format #t "adjusting ~a '.desktop' files in ~s~%"
|
||
(length files) applications)
|
||
|
||
;; '.desktop' files contain translations and are always
|
||
;; UTF-8-encoded.
|
||
(with-fluids ((%default-port-encoding "UTF-8"))
|
||
(substitute* files
|
||
(("^Exec=([^/[:blank:]\r\n]*)(.*)$" _ binary rest)
|
||
(string-append "Exec=" (which binary) rest))
|
||
(("^TryExec=([^/[:blank:]\r\n]*)(.*)$" _ binary rest)
|
||
(string-append "TryExec="
|
||
(which binary) rest)))))))))
|
||
outputs)
|
||
#t)
|
||
|
||
(define %license-file-regexp
|
||
;; Regexp matching license files.
|
||
"^(COPYING.*|LICEN[CS]E.*|[Ll]icen[cs]e.*|Copy[Rr]ight(\\.(txt|md))?)$")
|
||
|
||
(define* (install-license-files #:key outputs
|
||
(license-file-regexp %license-file-regexp)
|
||
#:allow-other-keys)
|
||
"Install license files matching LICENSE-FILE-REGEXP to 'share/doc'."
|
||
(let* ((regexp (make-regexp license-file-regexp))
|
||
(out (or (assoc-ref outputs "out")
|
||
(match outputs
|
||
(((_ . output) _ ...)
|
||
output))))
|
||
(package (strip-store-file-name out))
|
||
(directory (string-append out "/share/doc/" package))
|
||
(files (scandir "." (lambda (file)
|
||
(regexp-exec regexp file)))))
|
||
(format #t "installing ~a license files~%" (length files))
|
||
(for-each (lambda (file)
|
||
(if (file-is-directory? file)
|
||
(copy-recursively file directory)
|
||
(install-file file directory)))
|
||
files)
|
||
#t))
|
||
|
||
(define %standard-phases
|
||
;; Standard build phases, as a list of symbol/procedure pairs.
|
||
(let-syntax ((phases (syntax-rules ()
|
||
((_ p ...) `((p . ,p) ...)))))
|
||
(phases set-SOURCE-DATE-EPOCH set-paths install-locale unpack
|
||
bootstrap
|
||
patch-usr-bin-file
|
||
patch-source-shebangs configure patch-generated-file-shebangs
|
||
build check install
|
||
patch-shebangs strip
|
||
validate-runpath
|
||
validate-documentation-location
|
||
delete-info-dir-file
|
||
patch-dot-desktop-files
|
||
install-license-files
|
||
reset-gzip-timestamps
|
||
compress-documentation)))
|
||
|
||
|
||
(define* (gnu-build #:key (source #f) (outputs #f) (inputs #f)
|
||
(phases %standard-phases)
|
||
#:allow-other-keys
|
||
#:rest args)
|
||
"Build from SOURCE to OUTPUTS, using INPUTS, and by running all of PHASES
|
||
in order. Return #t if all the PHASES succeeded, #f otherwise."
|
||
(define (elapsed-time end start)
|
||
(let ((diff (time-difference end start)))
|
||
(+ (time-second diff)
|
||
(/ (time-nanosecond diff) 1e9))))
|
||
|
||
(setvbuf (current-output-port) _IOLBF)
|
||
(setvbuf (current-error-port) _IOLBF)
|
||
|
||
;; Encoding/decoding errors shouldn't be silent.
|
||
(fluid-set! %default-port-conversion-strategy 'error)
|
||
|
||
;; The trick is to #:allow-other-keys everywhere, so that each procedure in
|
||
;; PHASES can pick the keyword arguments it's interested in.
|
||
(for-each (match-lambda
|
||
((name . proc)
|
||
(let ((start (current-time time-monotonic)))
|
||
(format #t "starting phase `~a'~%" name)
|
||
(let ((result (apply proc args))
|
||
(end (current-time time-monotonic)))
|
||
(format #t "phase `~a' ~:[failed~;succeeded~] after ~,1f seconds~%"
|
||
name result
|
||
(elapsed-time end start))
|
||
|
||
;; Issue a warning unless the result is #t.
|
||
(unless (eqv? result #t)
|
||
(format (current-error-port) "\
|
||
## WARNING: phase `~a' returned `~s'. Return values other than #t
|
||
## are deprecated. Please migrate this package so that its phase
|
||
## procedures report errors by raising an exception, and otherwise
|
||
## always return #t.~%"
|
||
name result))
|
||
|
||
;; Dump the environment variables as a shell script, for handy debugging.
|
||
(system "export > $NIX_BUILD_TOP/environment-variables")
|
||
result))))
|
||
phases))
|