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83 lines
2.2 KiB
Bash
83 lines
2.2 KiB
Bash
#!/bin/bash
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# FFDec requires Oracle Java 7
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# Look for java in these directories
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LOOKUP_JRE_DIRS="/usr/lib/jvm/* /opt/java* /opt/jre*"
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#Created by Petris 2009 -> Many thanks!
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# Required version
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REQ_JVER1=1
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REQ_JVER2=7
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REQ_JVER3=0
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REQ_JVER4=0
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JAR_FILE=ffdec.jar
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MEMORY=1024m
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check_java_version () {
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JVER1=`echo $JAVA_VERSION_OUTPUT | sed 's/java version "\([0-9]*\)\.[0-9]*\.[0-9]*_[0-9]*".*/\1/'`
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JVER2=`echo $JAVA_VERSION_OUTPUT | sed 's/java version "[0-9]*\.\([0-9]*\)\.[0-9]*_[0-9]*".*/\1/'`
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JVER3=`echo $JAVA_VERSION_OUTPUT | sed 's/java version "[0-9]*\.[0-9]*\.\([0-9]*\)_[0-9]*".*/\1/'`
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JVER4=`echo $JAVA_VERSION_OUTPUT | sed 's/java version "[0-9]*\.[0-9]*\.[0-9]*_\([0-9]*\)".*/\1/'`
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if [ $JVER1 -gt $REQ_JVER1 ]; then
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return 0
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elif [ $JVER1 -lt $REQ_JVER1 ]; then
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return 1
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fi
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if [ $JVER2 -gt $REQ_JVER2 ]; then
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return 0
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elif [ $JVER2 -lt $REQ_JVER2 ]; then
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return 1
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fi
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if [ $JVER3 -gt $REQ_JVER3 ]; then
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return 0
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elif [ $JVER3 -lt $REQ_JVER3 ]; then
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return 1
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fi
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if [ $JVER4 -lt $REQ_JVER4 ]; then
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return 1
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fi
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return 0
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}
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# Handle symlinks
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PROGRAM="$0"
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while [ -L "$PROGRAM" ]; do
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PROGRAM=`readlink -f "$PROGRAM"`
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done
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cd "`dirname \"$PROGRAM\"`"
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# Check default java
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if [ -x "`which java`" ]; then
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JAVA_VERSION_OUTPUT=`java -version 2>&1`
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JAVA_VERSION_OUTPUT=`echo $JAVA_VERSION_OUTPUT | sed 's/openjdk version/java version/'`
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check_java_version && exec java -Djava.net.preferIPv4Stack=true -Xmx$MEMORY -jar $JAR_FILE "$@"
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fi
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# Test other possible Java locations
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for JRE_PATH in $LOOKUP_JRE_DIRS; do
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if [ -x "$JRE_PATH/bin/java" ]; then
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JAVA_VERSION_OUTPUT=`"$JRE_PATH/bin/java" -version 2>&1`
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JAVA_VERSION_OUTPUT=`echo $JAVA_VERSION_OUTPUT | sed 's/openjdk version/java version/'`
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check_java_version && {
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export JRE_PATH
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exec $JRE_PATH/bin/java -Djava.net.preferIPv4Stack=true -Xmx$MEMORY -jar $JAR_FILE "$@"
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}
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fi
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done
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# Failed
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if [ -x "`which xmessage`" ]; then
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xmessage -nearmouse -file - <<EOF
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Failed to find a suitable java version.
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Required: $REQ_JVER1.$REQ_JVER2.$REQ_JVER3_$REQ_JVER4 or newer.
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EOF
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else
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echo Failed to find a suitable java version.
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echo Required: $REQ_JVER1.$REQ_JVER2.$REQ_JVER3_$REQ_JVER4 or newer.
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fi
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exit 1
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