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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016, 2018 Ricardo Wurmus <rekado@elephly.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 build ant-build-system)
#:use-module ((guix build gnu-build-system) #:prefix gnu:)
#:use-module (guix build syscalls)
#:use-module (guix build utils)
#:use-module (sxml simple)
#:use-module (ice-9 match)
#:use-module (ice-9 ftw)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
ant-build))
;; Commentary:
;;
;; Builder-side code of the standard build procedure for Java packages using
;; Ant.
;;
;; Code:
(define* (default-build.xml jar-name prefix #:optional
(source-dir ".") (test-dir "./test") (main-class #f)
(test-include '("**/*Test.java"))
(test-exclude '("**/Abstract*Test.java")))
"Create a simple build.xml with standard targets for Ant."
(call-with-output-file "build.xml"
(lambda (port)
(sxml->xml
`(project (@ (basedir "."))
(property (@ (name "classes.dir")
(value "${basedir}/build/classes")))
(property (@ (name "manifest.dir")
(value "${basedir}/build/manifest")))
(property (@ (name "manifest.file")
(value "${manifest.dir}/MANIFEST.MF")))
(property (@ (name "jar.dir")
(value "${basedir}/build/jar")))
(property (@ (name "dist.dir")
(value ,prefix)))
(property (@ (name "test.home")
(value ,test-dir)))
(property (@ (name "test.classes.dir")
(value "${basedir}/build/test-classes")))
;; respect the CLASSPATH environment variable
(property (@ (name "build.sysclasspath")
(value "first")))
(property (@ (environment "env")))
(path (@ (id "classpath"))
(pathelement (@ (location "${env.CLASSPATH}"))))
(target (@ (name "manifest"))
(mkdir (@ (dir "${manifest.dir}")))
(manifest (@ (file "${manifest.file}"))
,(if main-class
`(attribute (@ (name "Main-Class")
(value ,main-class)))
"")))
(target (@ (name "compile"))
(mkdir (@ (dir "${classes.dir}")))
(javac (@ (includeantruntime "false")
(srcdir ,source-dir)
(destdir "${classes.dir}")
(classpath (@ (refid "classpath"))))))
(target (@ (name "compile-tests"))
(mkdir (@ (dir "${test.classes.dir}")))
(javac (@ (includeantruntime "false")
(srcdir ,test-dir)
(destdir "${test.classes.dir}"))
(classpath
(pathelement (@ (path "${env.CLASSPATH}")))
(pathelement (@ (location "${classes.dir}")))
(pathelement (@ (location "${test.classes.dir}"))))))
(target (@ (name "check")
(depends "compile-tests"))
(mkdir (@ (dir "${test.home}/test-reports")))
(junit (@ (printsummary "true")
(showoutput "true")
(fork "yes")
(haltonfailure "yes"))
(classpath
(pathelement (@ (path "${env.CLASSPATH}")))
(pathelement (@ (location "${test.home}/resources")))
(pathelement (@ (location "${classes.dir}")))
(pathelement (@ (location "${test.classes.dir}"))))
(formatter (@ (type "plain")
(usefile "true")))
(batchtest (@ (fork "yes")
(todir "${test.home}/test-reports"))
(fileset (@ (dir "${test.home}/java"))
,@(map (lambda (file)
`(include (@ (name ,file))))
test-include)
,@(map (lambda (file)
`(exclude (@ (name ,file))))
test-exclude)))))
(target (@ (name "jar")
(depends "compile, manifest"))
(mkdir (@ (dir "${jar.dir}")))
(exec (@ (executable "jar"))
(arg (@ (line ,(string-append "-cmf ${manifest.file} "
"${jar.dir}/" jar-name
" -C ${classes.dir} ."))))))
(target (@ (name "install"))
(copy (@ (todir "${dist.dir}"))
(fileset (@ (dir "${jar.dir}"))
(include (@ (name "**/*.jar")))))))
port)))
(utime "build.xml" 0 0)
#t)
(define (generate-classpath inputs)
"Return a colon-separated string of full paths to jar files found among the
INPUTS."
(string-join
(apply append (map (match-lambda
((_ . dir)
(find-files dir "\\.jar$")))
inputs)) ":"))
(define* (unpack #:key source #:allow-other-keys)
"Unpack the jar archive SOURCE. When SOURCE is not a jar archive fall back
to the default GNU unpack strategy."
(if (string-suffix? ".jar" source)
(begin
(mkdir "src")
(with-directory-excursion "src"
(invoke "jar" "-xf" source))
#t)
;; Use GNU unpack strategy for things that aren't jar archives.
((assq-ref gnu:%standard-phases 'unpack) #:source source)))
(define* (configure #:key inputs outputs (jar-name #f)
(source-dir "src")
(test-dir "src/test")
(main-class #f)
(test-include '("**/*Test.java"))
(test-exclude '("**/Abstract*.java")) #:allow-other-keys)
(when jar-name
(default-build.xml jar-name
(string-append (assoc-ref outputs "out")
"/share/java")
source-dir test-dir main-class test-include test-exclude))
(setenv "JAVA_HOME" (assoc-ref inputs "jdk"))
(setenv "CLASSPATH" (generate-classpath inputs))
#t)
(define* (build #:key (make-flags '()) (build-target "jar")
#:allow-other-keys)
(apply invoke `("ant" ,build-target ,@make-flags)))
(define* (generate-jar-indices #:key outputs #:allow-other-keys)
"Generate file \"META-INF/INDEX.LIST\". This file does not use word wraps
and is preferred over \"META-INF/MAINFEST.MF\", which does use word wraps,
by Java when resolving dependencies. So we make sure to create it so that
grafting works - and so that the garbage collector doesn't collect
dependencies of this jar file."
(define (generate-index jar)
(invoke "jar" "-i" jar))
(for-each (match-lambda
((output . directory)
(for-each generate-index (find-files directory "\\.jar$"))))
outputs)
#t)
(define* (strip-jar-timestamps #:key outputs
#:allow-other-keys)
"Unpack all jar archives, reset the timestamp of all contained files, and
repack them. This is necessary to ensure that archives are reproducible."
(define (repack-archive jar)
(format #t "repacking ~a\n" jar)
(let* ((dir (mkdtemp! "jar-contents.XXXXXX"))
(manifest (string-append dir "/META-INF/MANIFEST.MF")))
(with-directory-excursion dir
(invoke "jar" "xf" jar))
(delete-file jar)
;; XXX: copied from (gnu build install)
(for-each (lambda (file)
(let ((s (lstat file)))
(unless (eq? (stat:type s) 'symlink)
(utime file 0 0 0 0))))
(find-files dir #:directories? #t))
;; The jar tool will always set the timestamp on the manifest file
;; and the containing directory to the current time, even when we
;; reuse an existing manifest file. To avoid this we use "zip"
;; instead of "jar". It is important that the manifest appears
;; first.
(with-directory-excursion dir
(let* ((files (find-files "." ".*" #:directories? #t))
;; To ensure that the reference scanner can detect all
;; store references in the jars we disable compression
;; with the "-0" option.
(command (if (file-exists? manifest)
`("zip" "-0" "-X" ,jar ,manifest ,@files)
`("zip" "-0" "-X" ,jar ,@files))))
(apply invoke command)))
(utime jar 0 0)
#t))
(for-each (match-lambda
((output . directory)
(for-each repack-archive (find-files directory "\\.jar$"))))
outputs)
#t)
(define* (check #:key target (make-flags '()) (tests? (not target))
(test-target "check")
#:allow-other-keys)
(if tests?
(apply invoke `("ant" ,test-target ,@make-flags))
(format #t "test suite not run~%"))
#t)
(define* (install #:key (make-flags '()) #:allow-other-keys)
(apply invoke `("ant" "install" ,@make-flags)))
(define %standard-phases
(modify-phases gnu:%standard-phases
(replace 'unpack unpack)
(delete 'bootstrap)
(replace 'configure configure)
(replace 'build build)
(replace 'check check)
(replace 'install install)
(add-after 'install 'generate-jar-indices generate-jar-indices)
(add-after 'generate-jar-indices 'strip-jar-timestamps
strip-jar-timestamps)))
(define* (ant-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
"Build the given Java package, applying all of PHASES in order."
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
;;; ant-build-system.scm ends here
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