bash - Bash - PaperMC 安装脚本
问题描述
我制作了一个安装程序脚本,用于下载、运行和接受 PaperMC 服务器的 EULA。
我做了什么 :
#!/bin/bash
# Script nane : paper-install.sh
latestVer="$(curl -s 'https://papermc.io/api/v1/paper' | jq -r '.versions[0]')"
if [ ! -e paper-*.jar ]; then
echo "Downloading PaperMC version $latestVer ..."
rm -rf paper-*.jar && curl -OLJ https://papermc.io/api/v1/paper/"$latestVer"/latest/download
timeout 3s echo a
else
echo Downloaded
fi
start_script () {
cat <<'EOF' > run_paper
#!/bin/bash
# Find paper-*.jar file
jarfile=$(find . -name paper-*.jar)
# Server run arguments
java -jar $jarfile -Xmx1G -Xms1G -d64 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseNUMA -XX:+CMSParallelRemarkEnabled -XX:MaxTenuringThreshold=15 -XX:MaxGCPauseMillis=30 -XX:GCPauseIntervalMillis=150 -XX:+UseAdaptiveGCBoundary -XX:-UseGCOverheadLimit -XX:+UseBiasedLocking -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=15 -Dfml.ignorePatchDiscrepancies=true -Dfml.ignoreInvalidMinecraftCertificates=true -XX:+UseFastAccessorMethods -XX:+UseCompressedOops -XX:+OptimizeStringConcat -XX:+AggressiveOpts -XX:ReservedCodeCacheSize=2048m -XX:+UseCodeCacheFlushing -XX:SoftRefLRUPolicyMSPerMB=2000 -XX:ParallelGCThreads=10 nogui
EOF
# Make the script executable
chmod +x run_paper
}
# Generate script
if [ ! -e run_paper ]; then
echo "Generating run script ..."
start_script
else
echo .
fi
# Run script
bash run_paper
# after jar generated eula.txt , run this command
# sed -i 's/false/true/i' eula.txt
预期行为:没有错误实际结果:它有错误。
Idk 我做错了什么。
有人可以帮我弄清楚吗?
解决方案
尝试修复您的脚本
使用shellcheck linter的建议仍然有效。
#!/usr/bin/env bash
# Script nane : paper-install
API_URL='https://papermc.io/api/v1'
IFS=$(printf '\n\r\t ')
latestVer=$(curl -s "$API_URL/paper" | jq -r '.versions[0]')
location="$API_URL/paper/$latestVer/latest/download"
latestJar=$(
curl \
--silent \
--head \
--location "$location" |
awk -F= '/content-disposition: attachment; filename=/{print$2}'
)
latestJar=${latestJar%%[$IFS]}
if [ ! -e "$latestJar" ]; then
printf 'Downloading PaperMC version %s from %s as %s ...\n' \
"$latestVer" "$location" "$latestJar"
curl \
--output "$latestJar" \
--location "$location"
ln -sf "$latestJar" paper.jar
timeout 3s echo a
else
echo Downloaded
fi
get_java8() {
update-alternatives --query java | awk '/Alternative:/{print$2}' |
while read -r jvm; do
if "$jvm" -version 2>&1 | grep -q 'version "1.8.*"'; then
echo "$jvm"
break
fi
done
# Found no java 8
}
generate_start_script() {
cat <<EOF >run_paper
#!/usr/bin/env bash
# The paper jar
jarfile=paper.jar
# The java command path
#java_cmd=\$(command -v java)
java_cmd=$(env printf %q "$1")
# Long list of unknown wizard's black magic JVM arguments.
# I have no idea if these help, are really needed,
# or how many will break with newer java versions
java_args=(
-Xmx1G -Xms1G -d64 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC
-XX:+UseParNewGC -XX:+UseNUMA -XX:+CMSParallelRemarkEnabled
-XX:MaxTenuringThreshold=15 -XX:MaxGCPauseMillis=30
-XX:GCPauseIntervalMillis=150 -XX:+UseAdaptiveGCBoundary
-XX:-UseGCOverheadLimit -XX:+UseBiasedLocking -XX:SurvivorRatio=8
-XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=15
-Dfml.ignorePatchDiscrepancies=true
-Dfml.ignoreInvalidMinecraftCertificates=true -XX:+UseFastAccessorMethods
-XX:+UseCompressedOops -XX:+OptimizeStringConcat -XX:+AggressiveOpts
-XX:ReservedCodeCacheSize=2048m -XX:+UseCodeCacheFlushing
-XX:SoftRefLRUPolicyMSPerMB=2000 -XX:ParallelGCThreads=10
)
# Server run arguments
"\$java_cmd" "\${java_args[@]}" -jar "\$jarfile" nogui
EOF
# Make the script executable
chmod +x run_paper
if [ ! -e eula.txt ]; then
# Run the server to generate eula.txt
echo 'Running server installation'
./run_paper
fi
}
# Generate script
if [ ! -e run_paper ]; then
# Get java8 path or fail
java8_path=$(get_java8)
if [ -n "$java8_path" ]; then
echo "Generating run script ..."
generate_start_script "$java8_path"
else
echo 'No java8 found on this system!' >&2
fi
else
echo .
fi
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