--- /dev/null
+#!/bin/sh
+# This script reads filenames from STDIN and outputs any relevant requires
+# information that needs to be included in the package.
+#
+# Based on rpm-4.4.2/scripts/find-req.pl
+# Authors: Elan Ruusamäe <glen@pld-linux.org>
+
+export PATH="/sbin:/usr/sbin:/bin:/usr/bin"
+
+# Set the prefix, unless it is overriden
+: ${RPM_LIBDIR=/usr/lib/rpm}
+
+# Enable debug: JAVADEPS_DEBUG=true
+: ${JAVADEPS_DEBUG=false}
+
+# xsltproc for eclipse feature.xml
+: ${xsltproc=/usr/bin/xsltproc}
+
+# "%define java_min_classdataversion 51.0" in spec to minimum version to be 51.0
+: ${MIN_CLASSDATAVERSION=}
+
+# save $- state, to enable in functions
+debug=$-
+
+javaclassversionfilter() {
+ if [ "$MIN_CLASSDATAVERSION" ]; then
+ set -- $* "$MIN_CLASSDATAVERSION"
+ fi
+
+ local v
+ for v in $*; do
+ echo "java(ClassDataVersion) >= $v"
+ done | sort -V | tail -n 1
+}
+
+javaclassversion() {
+ set -$debug
+ local mode=$1; shift
+ [ $# -gt 0 ] || return 1
+ $JAVADEPS_DEBUG && echo >&2 ">> javaclassversion($mode): $*"
+
+ # process only requires
+ [ "$mode" = requires ] || return $ret
+
+ local classver=$(echo "$@" | xargs -r file | grep -o 'compiled Java class data, version [0-9.]*' | awk '{print $NF}' | sort -u)
+ if [ -z "$classver" ]; then
+ return 1
+ fi
+
+ javaclassversionfilter $classver
+ return 0
+}
+
+javajarversion() {
+ set -$debug
+ local mode=$1; shift
+ local jar=$1
+ local tmp ret=0
+ $JAVADEPS_DEBUG && echo >&2 ">> javajarversion($mode): $jar"
+
+ # check only files, symlinks could point outside buildroot
+ [ -f "$jar" -a ! -L "$jar" ] || return $ret
+
+ tmp=$(mktemp -d)
+ unzip -q -d $tmp $jar >&2
+ # workaround for .jar files with stupid permissions
+ chmod -R u+rwX $tmp
+
+ # find .jar and .class files
+ find_javadeps $mode $(find $tmp -type f -regextype posix-extended -regex '^.+\.(class|jar)$') || ret=1
+ rm -rf $tmp
+ return $ret
+}
+
+eclipse_feature() {
+ set -$debug
+ local mode=$1; shift
+ local file=$1
+ local ret=0
+
+ $JAVADEPS_DEBUG && echo >&2 ">> eclipse_feature($mode): $file"
+
+ if [ ! -x $xsltproc ]; then
+ return 0
+ fi
+
+ $xsltproc --stringparam mode $mode ${RPM_LIBDIR}/eclipse-feature.xslt $file
+}
+
+find_javadeps() {
+ set -$debug
+ local mode=$1; shift
+ local ret=0
+
+ $JAVADEPS_DEBUG && echo >&2 ">> find_javadeps($mode): $*"
+ for file in $@; do
+ case $file in
+ *.jar)
+ javajarversion $mode "$file" || ret=1
+ ;;
+ *.class)
+ javaclassversion $mode "$file" || {
+ echo >&2 "ERROR: Class version could not be extracted from $file"
+ ret=1
+ }
+ ;;
+ */feature.xml)
+ eclipse_feature $mode "$file" || ret=1
+ ;;
+ *)
+ $JAVADEPS_DEBUG && echo >&2 ">> find_javadeps($mode): no handle: $file"
+ ;;
+ esac
+ done
+ return $ret
+}
+
+ret=0
+# default mode to requires for backward compat
+mode=requires
+case $1 in
+-P|--provides)
+ mode=provides
+ shift
+ ;;
+-R|--requires)
+ mode=requires
+ shift
+ ;;
+esac
+
+t=$(mktemp)
+find_javadeps $mode $(cat -) > $t || ret=1
+sort -u $t
+rm -f $t
+
+exit $ret