eclass/java-ant-2.eclass

   1 # Copyright 2004-2015 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3 # $Id$
   4
   5 # @ECLASS: java-ant-2.eclass
   6 # @MAINTAINER:
   7 # java@gentoo.org
   8 # @AUTHOR:
   9 # kiorky (kiorky@cryptelium.net), Petteri Räty (betelgeuse@gentoo.org)
  10 # @BLURB: eclass for ant based Java packages
  11 # @DESCRIPTION:
  12 # Eclass for Ant-based Java packages. Provides support for both automatic and
  13 # manual manipulation of build.xml files. Should be inherited after java-pkg-2
  14 # or java-pkg-opt-2 eclass.
  15
  16 inherit java-utils-2 multilib
  17
  18 # This eclass provides functionality for Java packages which use
  19 # ant to build. In particular, it will attempt to fix build.xml files, so that
  20 # they use the appropriate 'target' and 'source' attributes.
  21
  22 # @ECLASS-VARIABLE: WANT_ANT_TASKS
  23 # @DEFAULT_UNSET
  24 # @DESCRIPTION:
  25 # An $IFS separated list of ant tasks.
  26 # Ebuild can specify this variable before inheriting java-ant-2 eclass to
  27 # determine ANT_TASKS it needs. They will be automatically translated to
  28 # DEPEND variable and ANT_TASKS variable. JAVA_PKG_FORCE_ANT_TASKS can override
  29 # ANT_TASKS set by WANT_ANT_TASKS, but not the DEPEND due to caching.
  30 # Ebuilds that need to depend conditionally on certain tasks and specify them
  31 # differently for different eant calls can't use this simplified approach.
  32 # You also cannot specify version or anything else than ant-*.
  33 #
  34 # @CODE
  35 # WANT_ANT_TASKS="ant-junit ant-trax"
  36 # @CODE
  37
  38 #The implementation of dependencies is handled by java-utils-2.eclass
  39 #WANT_ANT_TASKS
  40
  41 # @ECLASS-VARIABLE: JAVA_ANT_DISABLE_ANT_CORE_DEP
  42 # @DEFAULT_UNSET
  43 # @DESCRIPTION:
  44 # Setting this variable non-empty before inheriting java-ant-2 disables adding
  45 # dev-java/ant-core into DEPEND.
  46 if [[ -z "${JAVA_ANT_DISABLE_ANT_CORE_DEP}" ]]; then
  47         JAVA_ANT_E_DEPEND+=" >=dev-java/ant-core-1.8.2"
  48         [[ "${EAPI:-0}" != 0 ]] && JAVA_ANT_E_DEPEND+=":0"
  49 fi
  50
  51 # add ant tasks specified in WANT_ANT_TASKS to DEPEND
  52 local ANT_TASKS_DEPEND;
  53 ANT_TASKS_DEPEND="$(java-pkg_ant-tasks-depend)"
  54 # check that java-pkg_ant-tasks-depend didn't fail
  55 if [[ $? != 0 ]]; then
  56         eerror "${ANT_TASKS_DEPEND}"
  57         die "java-pkg_ant-tasks-depend() failed"
  58 fi
  59
  60 # We need some tools from javatoolkit. We also need portage 2.1 for phase hooks
  61 # and ant dependencies constructed above. Python is there for
  62 # java-ant_remove-taskdefs
  63 JAVA_ANT_E_DEPEND="${JAVA_ANT_E_DEPEND}
  64            ${ANT_TASKS_DEPEND}
  65            ${JAVA_PKG_PORTAGE_DEP}
  66            >=dev-java/javatoolkit-0.3.0-r2"
  67
  68 # this eclass must be inherited after java-pkg-2 or java-pkg-opt-2
  69 # if it's java-pkg-opt-2, ant dependencies are pulled based on USE flag
  70 if has java-pkg-opt-2 ${INHERITED}; then
  71         JAVA_ANT_E_DEPEND="${JAVA_PKG_OPT_USE}? ( ${JAVA_ANT_E_DEPEND} )"
  72 elif ! has java-pkg-2 ${INHERITED}; then
  73         eerror "java-ant-2 eclass can only be inherited AFTER java-pkg-2 or java-pkg-opt-2"
  74 fi
  75
  76 DEPEND="${JAVA_ANT_E_DEPEND}"
  77
  78 # @ECLASS-VARIABLE: JAVA_PKG_BSFIX
  79 # @DESCRIPTION:
  80 # Should we attempt to 'fix' ant build files to include the source/target
  81 # attributes when calling javac?
  82 JAVA_PKG_BSFIX=${JAVA_PKG_BSFIX:-"on"}
  83
  84 # @ECLASS-VARIABLE: JAVA_PKG_BSFIX_ALL
  85 # @DESCRIPTION:
  86 # If we're fixing build files, should we try to fix all the ones we can find?
  87 JAVA_PKG_BSFIX_ALL=${JAVA_PKG_BSFIX_ALL:-"yes"}
  88
  89 # @ECLASS-VARIABLE: JAVA_PKG_BSFIX_NAME
  90 # @DESCRIPTION:
  91 # Filename of build files to fix/search for
  92 JAVA_PKG_BSFIX_NAME=${JAVA_PKG_BSFIX_NAME:-"build.xml"}
  93
  94 # @ECLASS-VARIABLE: JAVA_PKG_BSFIX_TARGET_TAGS
  95 # @DESCRIPTION:
  96 # Targets to fix the 'source' attribute in
  97 JAVA_PKG_BSFIX_TARGET_TAGS=${JAVA_PKG_BSFIX_TARGET_TAGS:-"javac xjavac javac.preset"}
  98
  99 # @ECLASS-VARIABLE: JAVA_PKG_BSFIX_SOURCE_TAGS
 100 # @DESCRIPTION:
 101 # Targets to fix the 'target' attribute in
 102 JAVA_PKG_BSFIX_SOURCE_TAGS=${JAVA_PKG_BSFIX_SOURCE_TAGS:-"javadoc javac xjavac javac.preset"}
 103
 104 # @ECLASS-VARIABLE: JAVA_ANT_CLASSPATH_TAGS
 105 # @DESCRIPTION:
 106 # Targets to add the classpath attribute to
 107 JAVA_ANT_CLASSPATH_TAGS="javac xjavac"
 108
 109 # @ECLASS-VARIABLE: JAVA_ANT_IGNORE_SYSTEM_CLASSES
 110 # @DEFAULT_UNSET
 111 # @DESCRIPTION:
 112 # When set, <available> Ant tasks are rewritten to ignore Ant's runtime classpath.
 113
 114 case "${EAPI:-0}" in
 115         0|1) : ;;
 116         *) EXPORT_FUNCTIONS src_configure ;;
 117 esac
 118
 119 # @FUNCTION: java-ant-2_src_configure
 120 # @DESCRIPTION:
 121 # src_configure rewrites the build.xml files automatically, unless EAPI is undefined, 0 or 1.
 122 java-ant-2_src_configure() {
 123         # if java support is optional, don't perform this when the USE flag is off
 124         if has java-pkg-opt-2 ${INHERITED}; then
 125                 use ${JAVA_PKG_OPT_USE} || return
 126         fi
 127
 128         # eant will call us unless called by Portage
 129         [[ -e "${T}/java-ant-2_src_configure-run" ]] && return
 130
 131         [[ "${JAVA_ANT_IGNORE_SYSTEM_CLASSES}" ]] \
 132                 && java-ant_ignore-system-classes "${S}/build.xml"
 133
 134         java-ant_bsfix
 135         touch "${T}/java-ant-2_src_configure-run"
 136 }
 137
 138 # @FUNCTION: java-ant_bsfix
 139 # @INTERNAL
 140 # @DESCRIPTION:
 141 # Attempts to fix build files.
 142 #
 143 # @CODE
 144 # Affected by variables:
 145 #       JAVA_PKG_BSFIX
 146 #       JAVA_PKG_BSFIX_ALL
 147 #       JAVA_PKG_BSFIX_NAME,
 148 # @CODE
 149 java-ant_bsfix() {
 150         debug-print-function ${FUNCNAME} $*
 151
 152         [[ "${JAVA_PKG_BSFIX}" != "on" ]] && return
 153         if ! java-pkg_needs-vm; then
 154                 echo "QA Notice: Package is using java-ant, but doesn't depend on a Java VM"
 155         fi
 156
 157         pushd "${S}" >/dev/null || die
 158
 159         local find_args=""
 160         [[ "${JAVA_PKG_BSFIX_ALL}" == "yes" ]] || find_args="-maxdepth 1"
 161
 162         find_args="${find_args} -type f ( -name ${JAVA_PKG_BSFIX_NAME// / -o -name } )"
 163
 164         # This voodoo is done for paths with spaces
 165         local bsfix_these
 166         while read line; do
 167                 [[ -z ${line} ]] && continue
 168                 bsfix_these="${bsfix_these} '${line}'"
 169         done <<-EOF
 170                         $(find . ${find_args})
 171                 EOF
 172
 173         [[ "${bsfix_these// /}" ]] && eval java-ant_bsfix_files ${bsfix_these}
 174
 175         popd > /dev/null || die
 176 }
 177
 178 _bsfix_die() {
 179         if has_version dev-python/pyxml; then
 180                 eerror "If the output above contains:"
 181                 eerror "ImportError:"
 182                 eerror "/usr/lib/python2.4/site-packages/_xmlplus/parsers/pyexpat.so:"
 183                 eerror "undefined symbol: PyUnicodeUCS2_DecodeUTF8"
 184                 eerror "Try re-emerging dev-python/pyxml"
 185                 die ${1} " Look at the eerror message above"
 186         else
 187                 die ${1}
 188         fi
 189 }
 190
 191 # @FUNCTION: java-ant_bsfix_files
 192 # @USAGE: <path/to/first/build.xml> [path/to/second.build.xml ...]
 193 # @DESCRIPTION:
 194 # Attempts to fix named build files.
 195 #
 196 # @CODE
 197 # Affected by variables:
 198 #       JAVA_PKG_BSFIX_SOURCE_TAGS
 199 #       JAVA_PKG_BSFIX_TARGET_TAGS
 200 #       JAVA_ANT_REWRITE_CLASSPATH
 201 #       JAVA_ANT_JAVADOC_INPUT_DIRS: Where we can find java sources for javadoc
 202 #                                input. Can be a space separated list of
 203 #                                directories
 204 #       JAVA_ANT_BSFIX_EXTRA_ARGS: You can use this to pass extra variables to the
 205 #                                  rewriter if you know what you are doing.
 206 # @CODE
 207 #
 208 # If JAVA_ANT_JAVADOC_INPUT_DIRS is set, we will turn on the adding of a basic
 209 # javadoc target to the ant's build.xml with the javadoc xml-rewriter feature.
 210 # Then we will set EANT DOC TARGET to the added javadoc target
 211 # NOTE: the variable JAVA_ANT_JAVADOC_OUTPUT_DIR points where we will
 212 #       generate the javadocs. This is a read-only variable, dont change it.
 213
 214 # When changing this function, make sure that it works with paths with spaces in
 215 # them.
 216 java-ant_bsfix_files() {
 217         debug-print-function ${FUNCNAME} $*
 218
 219         [[ ${#} = 0 ]] && die "${FUNCNAME} called without arguments"
 220
 221         local want_source="$(java-pkg_get-source)"
 222         local want_target="$(java-pkg_get-target)"
 223
 224         debug-print "${FUNCNAME}: target: ${want_target} source: ${want_source}"
 225
 226         if [ -z "${want_source}" -o -z "${want_target}" ]; then
 227                 eerror "Could not find valid -source/-target values"
 228                 eerror "Please file a bug about this on bugs.gentoo.org"
 229                 die "Could not find valid -source/-target values"
 230         else
 231                 local files
 232
 233                 for file in "${@}"; do
 234                         debug-print "${FUNCNAME}: ${file}"
 235
 236                         if [[ -n "${JAVA_PKG_DEBUG}" ]]; then
 237                                 cp "${file}" "${file}.orig" || die "failed to copy ${file}"
 238                         fi
 239
 240                         if [[ ! -w "${file}" ]]; then
 241                                 chmod u+w "${file}" || die "chmod u+w ${file} failed"
 242                         fi
 243
 244                         files="${files} -f '${file}'"
 245                 done
 246
 247                 # for javadoc target and all in one pass, we need the new rewriter.
 248                 local rewriter3="/usr/share/javatoolkit/xml-rewrite-3.py"
 249                 if [[ ! -f ${rewriter3} ]]; then
 250                         rewriter3="/usr/$(get_libdir)/javatoolkit/bin/xml-rewrite-3.py"
 251                 fi
 252
 253                 local rewriter4="/usr/$(get_libdir)/javatoolkit/bin/build-xml-rewrite"
 254
 255                 if [[ -x ${rewriter4} && ${JAVA_ANT_ENCODING} ]]; then
 256                         [[ ${JAVA_ANT_REWRITE_CLASSPATH} ]] && local gcp="-g"
 257                         [[ ${JAVA_ANT_ENCODING} ]] && local enc="-e ${JAVA_ANT_ENCODING}"
 258                         eval echo "cElementTree rewriter"
 259                         debug-print "${rewriter4} extra args: ${gcp} ${enc}"
 260                         ${rewriter4} ${gcp} ${enc} \
 261                                 -c "${JAVA_PKG_BSFIX_SOURCE_TAGS}" source ${want_source} \
 262                                 -c "${JAVA_PKG_BSFIX_TARGET_TAGS}" target ${want_target} \
 263                                 "${@}" || die "build-xml-rewrite failed"
 264                 elif [[ ! -f ${rewriter3} ]]; then
 265                         debug-print "Using second generation rewriter"
 266                         eval echo "Rewriting source attributes"
 267                         eval xml-rewrite-2.py ${files} \
 268                                 -c -e ${JAVA_PKG_BSFIX_SOURCE_TAGS// / -e } \
 269                                 -a source -v ${want_source} || _bsfix_die "xml-rewrite2 failed: ${file}"
 270
 271                         eval echo "Rewriting target attributes"
 272                         eval xml-rewrite-2.py ${files} \
 273                                 -c -e ${JAVA_PKG_BSFIX_TARGET_TAGS// / -e } \
 274                                 -a target -v ${want_target} || _bsfix_die "xml-rewrite2 failed: ${file}"
 275
 276                         eval echo "Rewriting nowarn attributes"
 277                         eval xml-rewrite-2.py ${files} \
 278                                 -c -e ${JAVA_PKG_BSFIX_TARGET_TAGS// / -e } \
 279                                 -a nowarn -v yes || _bsfix_die "xml-rewrite2 failed: ${file}"
 280
 281                         if [[ ${JAVA_ANT_REWRITE_CLASSPATH} ]]; then
 282                                 eval echo "Adding gentoo.classpath to javac tasks"
 283                                 eval xml-rewrite-2.py ${files} \
 284                                          -c -e javac -e xjavac -a classpath -v \
 285                                          '\${gentoo.classpath}' \
 286                                          || _bsfix_die "xml-rewrite2 failed"
 287                         fi
 288                 else
 289                         debug-print "Using third generation rewriter"
 290                         eval echo "Rewriting attributes"
 291                         local bsfix_extra_args=""
 292                         # WARNING KEEP THE ORDER, ESPECIALLY FOR CHANGED ATTRIBUTES!
 293                         if [[ -n ${JAVA_ANT_REWRITE_CLASSPATH} ]]; then
 294                                 local cp_tags="${JAVA_ANT_CLASSPATH_TAGS// / -e }"
 295                                 bsfix_extra_args="${bsfix_extra_args} -g -e ${cp_tags}"
 296                                 bsfix_extra_args="${bsfix_extra_args} -a classpath -v '\${gentoo.classpath}'"
 297                         fi
 298                         if [[ -n ${JAVA_ANT_JAVADOC_INPUT_DIRS} ]]; then
 299                                 if [[ -n ${JAVA_ANT_JAVADOC_OUTPUT_DIR} ]]; then
 300                                         die "Do not define JAVA_ANT_JAVADOC_OUTPUT_DIR!"
 301                                 fi
 302                                 # Where will our generated javadoc go.
 303                                 readonly JAVA_ANT_JAVADOC_OUTPUT_DIR="${WORKDIR}/gentoo_javadoc"
 304                                 mkdir -p "${JAVA_ANT_JAVADOC_OUTPUT_DIR}" || die
 305
 306                                 if has doc ${IUSE}; then
 307                                         if use doc; then
 308                                                 if [[ -z ${EANT_DOC_TARGET} ]]; then
 309                                                         EANT_DOC_TARGET="gentoojavadoc"
 310                                                 else
 311                                                         die "You can't use javadoc adding and set EANT_DOC_TARGET too."
 312                                                 fi
 313
 314                                                 for dir in ${JAVA_ANT_JAVADOC_INPUT_DIRS};do
 315                                                         if [[ ! -d ${dir} ]]; then
 316                                                                 eerror "This dir: ${dir} doesnt' exists"
 317                                                                 die "You must specify directories for javadoc input/output dirs."
 318                                                         fi
 319                                                 done
 320                                                 bsfix_extra_args="${bsfix_extra_args} --javadoc --source-directory "
 321                                                 # filter third/double spaces
 322                                                 JAVA_ANT_JAVADOC_INPUT_DIRS=${JAVA_ANT_JAVADOC_INPUT_DIRS//   /}
 323                                                 JAVA_ANT_JAVADOC_INPUT_DIRS=${JAVA_ANT_JAVADOC_INPUT_DIRS//  /}
 324                                                 bsfix_extra_args="${bsfix_extra_args} ${JAVA_ANT_JAVADOC_INPUT_DIRS// / --source-directory }"
 325                                                 bsfix_extra_args="${bsfix_extra_args} --output-directory ${JAVA_ANT_JAVADOC_OUTPUT_DIR}"
 326                                         fi
 327                                 else
 328                                         die "You need to have doc in IUSE when using JAVA_ANT_JAVADOC_INPUT_DIRS"
 329                                 fi
 330                         fi
 331
 332                         [[ -n ${JAVA_ANT_BSFIX_EXTRA_ARGS} ]] \
 333                                 && bsfix_extra_args="${bsfix_extra_args} ${JAVA_ANT_BSFIX_EXTRA_ARGS}"
 334
 335                         debug-print "bsfix_extra_args: ${bsfix_extra_args}"
 336
 337                         eval ${rewriter3}  ${files} \
 338                                 -c --source-element ${JAVA_PKG_BSFIX_SOURCE_TAGS// / --source-element } \
 339                                 --source-attribute source --source-value ${want_source} \
 340                                 --target-element   ${JAVA_PKG_BSFIX_TARGET_TAGS// / --target-element }  \
 341                                 --target-attribute target --target-value ${want_target} \
 342                                 --target-attribute nowarn --target-value yes \
 343                                 ${bsfix_extra_args} \
 344                                 || _bsfix_die "xml-rewrite2 failed: ${file}"
 345                 fi
 346
 347                 if [[ -n "${JAVA_PKG_DEBUG}" ]]; then
 348                         for file in "${@}"; do
 349                                 diff -NurbB "${file}.orig" "${file}"
 350                         done
 351                 fi
 352         fi
 353         return 0 # so that the 1 for diff doesn't get reported
 354 }
 355
 356
 357 # @FUNCTION: java-ant_bsfix_one
 358 # @USAGE: <path/to/build.xml>
 359 # @DESCRIPTION:
 360 # Attempts to fix named build file.
 361 #
 362 # @CODE
 363 # Affected by variables:
 364 #       JAVA_PKG_BSFIX_SOURCE_TAGS
 365 #       JAVA_PKG_BSFIX_TARGET_TAGS
 366 # @CODE
 367 java-ant_bsfix_one() {
 368         debug-print-function ${FUNCNAME} $*
 369
 370         if [ -z "${1}" ]; then
 371                 eerror "${FUNCNAME} needs one argument"
 372                 die "${FUNCNAME} needs one argument"
 373         fi
 374
 375         java-ant_bsfix_files "${1}"
 376 }
 377
 378 # @FUNCTION: java-ant_rewrite-classpath
 379 # @USAGE: [path/to/build.xml]
 380 # @DESCRIPTION:
 381 # Adds 'classpath="${gentoo.classpath}"' to specified build file.
 382 #
 383 # Affected by:
 384 #       JAVA_ANT_CLASSPATH_TAGS
 385 #
 386 # Parameter defaults to build.xml when not specified
 387 java-ant_rewrite-classpath() {
 388         debug-print-function ${FUNCNAME} $*
 389
 390         local file="${1}"
 391         [[ -z "${1}" ]] && file=build.xml
 392         [[ ${#} -gt 1 ]] && die "${FUNCNAME} currently can only rewrite one file."
 393
 394         echo "Adding gentoo.classpath to ${file}"
 395         debug-print "java-ant_rewrite-classpath: ${file}"
 396
 397         cp "${file}" "${file}.orig" || die "failed to copy ${file}"
 398
 399         chmod u+w "${file}"
 400
 401         java-ant_xml-rewrite -f "${file}" --change \
 402                 -e ${JAVA_ANT_CLASSPATH_TAGS// / -e } -a classpath -v '${gentoo.classpath}'
 403
 404         if [[ -n "${JAVA_PKG_DEBUG}" ]]; then
 405                 diff -NurbB "${file}.orig" "${file}"
 406         fi
 407 }
 408
 409 # @FUNCTION: java-ant_remove-taskdefs
 410 # @USAGE: [--name NAME] [path/to/build.xml]
 411 # @DESCRIPTION:
 412 # Removes (named) taskdef elements from the build.xml file.
 413 # When --name NAME is specified, only remove taskdef with name NAME. Otherwise,
 414 # all taskdefs are removed.
 415 # The file to rewrite defaults to build.xml when not specified.
 416 java-ant_remove-taskdefs() {
 417         debug-print-function ${FUNCNAME} $*
 418
 419         die "${FUNCNAME} has been banned, see bug #479838."
 420
 421         local task_name
 422         if [[ "${1}" == --name ]]; then
 423                 task_name="${2}"
 424                 shift 2
 425         fi
 426         local file="${1:-build.xml}"
 427         echo "Removing taskdefs from ${file}"
 428         python <<EOF
 429 import sys
 430 from xml.dom.minidom import parse
 431 dom = parse("${file}")
 432 for elem in dom.getElementsByTagName('taskdef'):
 433         if (len("${task_name}") == 0 or elem.getAttribute("name") == "${task_name}"):
 434                 elem.parentNode.removeChild(elem)
 435                 elem.unlink()
 436 f = open("${file}", "w")
 437 dom.writexml(f)
 438 f.close()
 439 EOF
 440         [[ $? != 0 ]] && die "Removing taskdefs failed"
 441 }
 442
 443 # @FUNCTION: java-ant_ignore-system-classes
 444 # @USAGE: [path/to/build.xml]
 445 # @DESCRIPTION:
 446 # Makes the available task ignore classes in the system classpath
 447 # Parameter defaults to build.xml when not specified
 448 java-ant_ignore-system-classes() {
 449         debug-print-function ${FUNCNAME} $*
 450         local file=${1:-build.xml}
 451         echo "Changing ignoresystemclasses to true for available tasks in ${file}"
 452         java-ant_xml-rewrite -f "${file}" --change \
 453                 -e available -a ignoresystemclasses -v "true"
 454 }
 455
 456 # @FUNCTION: java-ant_xml-rewrite
 457 # @USAGE: <xml rewriter arguments>
 458 # @DESCRIPTION:
 459 # Run the right xml-rewrite binary with the given arguments
 460 java-ant_xml-rewrite() {
 461         local gen2="/usr/bin/xml-rewrite-2.py"
 462         local gen2_1="/usr/$(get_libdir)/javatoolkit/bin/xml-rewrite-2.py"
 463         # gen1 is deprecated
 464         if [[ -x "${gen2}" ]]; then
 465                 ${gen2} "${@}" || die "${gen2} failed"
 466         elif [[ -x "${gen2_1}" ]]; then
 467                 ${gen2_1} "${@}" || die "${gen2_1} failed"
 468         else
 469                 eerror "No binary for rewriting found."
 470                 eerror "Do you have dev-java/javatoolkit installed?"
 471                 die "xml-rewrite not found"
 472         fi
 473 }
 474
 475 # @FUNCTION: java-ant_rewrite-bootclasspath
 476 # @USAGE: <version> [path/to/build.xml] [prepend] [append]
 477 # @DESCRIPTION:
 478 # Adds bootclasspath to javac-like tasks in build.xml filled with jars of a
 479 # bootclasspath package of given version.
 480 #
 481 # @CODE
 482 # Affected by:
 483 #       JAVA_PKG_BSFIX_TARGET_TAGS - the tags of javac tasks
 484 #
 485 # Parameters:
 486 # $1 - the version of bootclasspath (e.g. 1.5), 'auto' for bootclasspath
 487 #      of the current JDK
 488 # $2 - path to desired build.xml file, defaults to 'build.xml'
 489 # $3 - (optional) what to prepend the bootclasspath with (to override)
 490 # $4 - (optional) what to append to the bootclasspath
 491 # @CODE
 492 java-ant_rewrite-bootclasspath() {
 493         local version="${1}"
 494         local file="${2-build.xml}"
 495         local extra_before="${3}"
 496         local extra_after="${4}"
 497
 498         local bcp="$(java-pkg_get-bootclasspath "${version}")"
 499
 500         if [[ -n "${extra_before}" ]]; then
 501                 bcp="${extra_before}:${bcp}"
 502         fi
 503         if [[ -n "${extra_after}" ]]; then
 504                 bcp="${bcp}:${extra_after}"
 505         fi
 506
 507         java-ant_xml-rewrite -f "${file}" -c -e ${JAVA_PKG_BSFIX_TARGET_TAGS// / -e } \
 508                 -a bootclasspath -v "${bcp}"
 509 }