SOURCES: rpm-java-requires (NEW) - Th version, based on find-java-...

[qboosh]

Author: qboosh                       Date: Tue May 22 19:59:32 2007 GMT
Module: SOURCES                       Tag: HEAD
---- Log message:
- Th version, based on find-java-req.sh:AC-branch

---- Files affected:
SOURCES:
   rpm-java-requires (NONE -> 1.1)  (NEW)

---- Diffs:

================================================================
Index: SOURCES/rpm-java-requires
diff -u /dev/null SOURCES/rpm-java-requires:1.1
--- /dev/null	Tue May 22 21:59:32 2007
+++ SOURCES/rpm-java-requires	Tue May 22 21:59:27 2007
@@ -0,0 +1,50 @@
+#!/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 at pld-linux.org>
+
+export PATH="/sbin:/usr/sbin:/bin:/usr/bin"
+
+javaclassversion() {
+	[ $# -gt 0 ] || return
+
+	local ver
+	classver=$(echo "$@" | xargs -r file | grep -o 'compiled Java class data, version [0-9.]*' | awk '{print $NF}' | sort -u)
+	[ "$classver" ] || return
+	for v in $classver; do
+		echo "java(ClassDataVersion) >= $v"
+	done
+}
+
+javajarversion() {
+	local jar="$1"
+
+	# check only files, symlinks could point outside buildroot
+	[ -f "$jar" -a ! -L "$jar" ] || return
+
+#	echo >&2 "find java requires: ${jar#$RPM_BUILD_ROOT}"
+
+	tmp=$(mktemp -d)
+	unzip -q -d $tmp $jar >&2
+	javaclassversion $(find $tmp -type f -name '*.class')
+	rm -rf $tmp
+}
+
+FILES=$(cat -)
+
+find_requires() {
+	for file in $FILES; do
+		case $file in
+		*.jar)
+			javajarversion "$file"
+		;;
+		*.class)
+			javaclassversion "$file"
+		;;
+		esac
+	done
+}
+
+find_requires | sort -u
================================================================