Paper/scripts/remap.sh
Aikar d089acb3bd
Switch to using ForgeFlower for Paper Only mc-dev imports
ForgeFlower is better than Spigots FernFlower at decompiling the source.

However, in order to maintain the CraftBukkit patches, we must keep
using spigots for the primary.

However, for any file that we import on top of Spigots imported files
there is nothing stopping us from using better decompiled files.

So these changes will use ForgeFlower to maintain a better set of
decomped files, so anything we add on top of Paper can start off
in a better spot.
2018-08-31 23:47:57 -04:00

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#!/usr/bin/env bash
(
set -e
PS1="$"
basedir="$(cd "$1" && pwd -P)"
workdir="$basedir/work"
minecraftversion=$(cat "${workdir}/BuildData/info.json" | grep minecraftVersion | cut -d '"' -f 4)
minecraftserverurl=$(cat "${workdir}/BuildData/info.json" | grep serverUrl | cut -d '"' -f 4)
minecrafthash=$(cat "${workdir}/BuildData/info.json" | grep minecraftHash | cut -d '"' -f 4)
accesstransforms="$workdir/BuildData/mappings/"$(cat "${workdir}/BuildData/info.json" | grep accessTransforms | cut -d '"' -f 4)
classmappings="$workdir/BuildData/mappings/"$(cat "${workdir}/BuildData/info.json" | grep classMappings | cut -d '"' -f 4)
membermappings="$workdir/BuildData/mappings/"$(cat "${workdir}/BuildData/info.json" | grep memberMappings | cut -d '"' -f 4)
packagemappings="$workdir/BuildData/mappings/"$(cat "${workdir}/BuildData/info.json" | grep packageMappings | cut -d '"' -f 4)
decompiledir="$workdir/Minecraft/$minecraftversion"
jarpath="$decompiledir/$minecraftversion"
mkdir -p "$decompiledir"
echo "Downloading unmapped vanilla jar..."
if [ ! -f "$jarpath.jar" ]; then
curl -s -o "$jarpath.jar" "$minecraftserverurl"
if [ "$?" != "0" ]; then
echo "Failed to download the vanilla server jar. Check connectivity or try again later."
exit 1
fi
fi
# OS X & FreeBSD don't have md5sum, just md5 -r
command -v md5sum >/dev/null 2>&1 || {
command -v md5 >/dev/null 2>&1 && {
shopt -s expand_aliases
alias md5sum='md5 -r'
echo "md5sum command not found, using an alias instead"
} || {
echo >&2 "No md5sum or md5 command found"
exit 1
}
}
checksum=$(md5sum "$jarpath.jar" | cut -d ' ' -f 1)
if [ "$checksum" != "$minecrafthash" ]; then
echo "The MD5 checksum of the downloaded server jar does not match the BuildData hash."
exit 1
fi
echo "Applying class mappings..."
if [ ! -f "$jarpath-cl.jar" ]; then
java -jar "$workdir/BuildData/bin/SpecialSource-2.jar" map -i "$jarpath.jar" -m "$classmappings" -o "$jarpath-cl.jar" 1>/dev/null
if [ "$?" != "0" ]; then
echo "Failed to apply class mappings."
exit 1
fi
fi
echo "Applying member mappings..."
if [ ! -f "$jarpath-m.jar" ]; then
java -jar "$workdir/BuildData/bin/SpecialSource-2.jar" map -i "$jarpath-cl.jar" -m "$membermappings" -o "$jarpath-m.jar" 1>/dev/null
if [ "$?" != "0" ]; then
echo "Failed to apply member mappings."
exit 1
fi
fi
echo "Creating remapped jar..."
if [ ! -f "$jarpath-mapped.jar" ]; then
java -jar "$workdir/BuildData/bin/SpecialSource.jar" --kill-lvt -i "$jarpath-m.jar" --access-transformer "$accesstransforms" -m "$packagemappings" -o "$jarpath-mapped.jar" 1>/dev/null
if [ "$?" != "0" ]; then
echo "Failed to create remapped jar."
exit 1
fi
fi
echo "Installing remapped jar..."
cd "$workdir/CraftBukkit" # Need to be in a directory with a valid POM at the time of install.
mvn install:install-file -q -Dfile="$jarpath-mapped.jar" -Dpackaging=jar -DgroupId=org.spigotmc -DartifactId=minecraft-server -Dversion="$minecraftversion-SNAPSHOT"
if [ "$?" != "0" ]; then
echo "Failed to install remapped jar."
exit 1
fi
)