aboutsummaryrefslogtreecommitdiff
path: root/guix/build/ant-build-system.scm
blob: d79b4d503be26e2337680d6f6e7e90e8c4533f34 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
;;; 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