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https://git.huckle.dev/Huckles-Minecraft-Archive/jpexs-decompiler.git
synced 2026-05-23 09:45:31 +00:00
97fb9594dc
Previously, the `check_java_version` function used a regular expression that worked with GNU sed, but failed with BSD sed. This change uses an extended regular expression that works with both sed flavors.
137 lines
3.8 KiB
Bash
137 lines
3.8 KiB
Bash
#!/usr/bin/env bash
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# This is a comment, it starts with "#".
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# Uncomment following and set it to higher value if you want more memory
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# You need 64 bit OS and 64 bit java to set it to higher values
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# FFDEC_MEMORY=1024m
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# Uncomment following when you encounter StackOverFlowErrors.
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# If the app then terminates with OutOfMemory you can experiment with lower value.
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# FFDEC_STACK_SIZE=32m
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# Hide VLC error output
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export VLC_VERBOSE=-1
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# FFDec requires Oracle Java 8
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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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# Required version
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REQ_JVER1=1
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REQ_JVER2=8
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REQ_JVER3=0
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REQ_JVER4=0
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if [ -z ${FFDEC_JARFILENAME+x} ]; then
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FFDEC_JARFILENAME=ffdec.jar
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fi
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search_jar_file() {
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JAR_FILE_CANDIDATES="./${FFDEC_JARFILENAME} ../dist/${FFDEC_JARFILENAME} /usr/share/java/${FFDEC_JARFILENAME} /usr/share/java/ffdec/${FFDEC_JARFILENAME} /usr/share/java/jpexs-decompiler/${FFDEC_JARFILENAME}"
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for f in $JAR_FILE_CANDIDATES ; do
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[ -r "$f" ] && JAR_FILE="$f" && return 0
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done
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echo Unable to find ${FFDEC_JARFILE} in the following locations:
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echo "${JAR_FILE_CANDIDATES// /$'\n'}"
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return 1
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}
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check_java_version () {
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JVER1=$(echo $JAVA_VERSION_OUTPUT | sed -E 's/java version "([0-9]*)\.[0-9]*\.[0-9]*(_[0-9]*)?".*/\1/')
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JVER2=$(echo $JAVA_VERSION_OUTPUT | sed -E 's/java version "[0-9]*\.([0-9]*)\.[0-9]*(_[0-9]*)?".*/\1/')
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JVER3=$(echo $JAVA_VERSION_OUTPUT | sed -E 's/java version "[0-9]*\.[0-9]*\.([0-9]*)(_[0-9]*)?".*/\1/')
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JVER4=$(echo $JAVA_VERSION_OUTPUT | sed -E 's/java version "[0-9]*\.[0-9]*\.[0-9]*(_([0-9]*))?".*/\2/' | sed 's/^$/0/')
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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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pushd "$(dirname "$PROGRAM")" > /dev/null
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search_jar_file || exit 1
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if [ "${JAR_FILE:0:1}" != '/' ] ; then
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JAR_FILE=$(pwd)/$JAR_FILE
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fi
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popd > /dev/null
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if [ -z ${FFDEC_MEMORY+x} ]; then
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FFDEC_MEMORY=1024m
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fi
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STACK_SIZE_PARAM=""
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MEMORY_PARAM=""
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if [ -n "$FFDEC_STACK_SIZE" ]; then
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STACK_SIZE_PARAM=" -Xss$FFDEC_STACK_SIZE"
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fi
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if [ -n "$FFDEC_MEMORY" ]; then
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MEMORY_PARAM=" -Xmx$FFDEC_MEMORY"
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fi
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args=(-Djava.net.preferIPv4Stack=true -Djna.nosys=true -Djava.util.Arrays.useLegacyMergeSort=true${MEMORY_PARAM}${STACK_SIZE_PARAM} -jar "$JAR_FILE" "$@")
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if [ "$(uname)" = "Darwin" ]; then
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args=(-Xdock:name=FFDec -Xdock:icon=icon.png "${args[@]}")
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fi
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# Check default java
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if [ -x "$(which java)" ]; then
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JAVA_VERSION_OUTPUT=$(java -version 2>&1)
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JAVA_VERSION_OUTPUT=$(echo $JAVA_VERSION_OUTPUT | sed -E 's/.*(openjdk|java) version/java version/')
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check_java_version && exec java "${args[@]}"
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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 $JAVA_VERSION_OUTPUT | sed -E 's/.*(openjdk|java) version/java version/'`
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check_java_version && {
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export JRE_PATH
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exec "$JRE_PATH/bin/java" "${args[@]}"
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}
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fi
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done
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# Failed
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if [ -x "$(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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