diff options
Diffstat (limited to 'minecraft/mclauncher')
| -rw-r--r-- | minecraft/mclauncher | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/minecraft/mclauncher b/minecraft/mclauncher new file mode 100644 index 0000000..721b48f --- /dev/null +++ b/minecraft/mclauncher @@ -0,0 +1,259 @@ +#!/bin/sh + +set -e + +# +# DEFAULT VARIABLE GENERATORS +# + +jvm_args() { + MEMORY="${MEMORY:-1G}" + printf -- "-Xms$MEMORY -Xmx$MEMORY " + printf -- "-XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 " + printf -- "-XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch " + printf -- "-XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M " + printf -- "-XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 " + printf -- "-XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 " + printf -- "-XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem " + printf -- "-XX:MaxTenuringThreshold=1 " +} + +# +# ENV VARS +# + +SERVER_DIR="$(realpath ${MC_DIR:-./server})" +JVMARGS=${JVMARGS:-$(jvm_args)} + +# +# PREDEFINE VARS +# + +MCLAUNCHER_INFO="" +MCLAUNCHER_BINARY="" +MCLAUNCHER_QUIET=1 + +# +# HELPERS +# + +error() { + printf '\x1b[31m[ERROR]\t\x1b[0m%s\n' "$*" > /dev/stderr + exit 1; +} + +log() { + if [ "$MCLAUNCHER_QUIET" -eq 0 ]; then + printf '\x1b[0m[LOG]\t%s\n' "$*" > /dev/stderr + fi +} + +step() { + if [ "$MCLAUNCHER_QUIET" -eq 0 ]; then + printf '\x1b[36m[STEP]\t\x1b[0m%s\n' "$*" > /dev/stderr + fi +} + +get_key() { + echo "$MCLAUNCHER_INFO" | grep "$1=" | awk -F '=' '{ print $2 }' +} + +# +# INFO STEP +# gets the up to date information from mcjar +# + +info_step() { + step "info" + + # getting latest info from mcjar + MCLAUNCHER_INFO="$(mcjar -a)" + + [ "$MCLAUNCHER_QUIET" -eq 1 ] || echo "$MCLAUNCHER_INFO"; +} + +# +# BINARY STEP +# attempts to find the current binary installed on the system +# + +binary_step_forge() { + jar_name="$(get_key "JAR_NAME")" + jar_prefix="${jar_name%-installer.jar}" + suffixs="$(echo ".jar;-shim.jar;-universal.jar" | tr ";" "\n")" + + IFS=$'\n' + for suffix in $suffixs; do + if [ -f "$SERVER_DIR/$jar_prefix$suffix" ]; then + MCLAUNCHER_BINARY="$jar_prefix$suffix" + return; + fi + done +} + +binary_step_default() { + jar_name="$(get_key "JAR_NAME")" + if [ -f "$SERVER_DIR/$jar_name" ]; then + MCLAUNCHER_BINARY="$jar_name" + fi +} + +binary_step() { + step "binary" + + MCLAUNCHER_BINARY="" + type="$(get_key "MC_TYPE")" + case "$type" in + "forge") + binary_step_forge + ;; + *) + binary_step_default + ;; + esac + + if [ "$MCLAUNCHER_BINARY" != "" ]; then + log "found binary '$MCLAUNCHER_BINARY'" + else + log "could not locate binary... will download" + fi +} + +# +# DOWNLOAD STEP +# download the binary if it needs to needs updated +# + +download_step() { + step "download" + + if [ "$MCLAUNCHER_BINARY" != "" ]; then + log "jar is up to date... skipping" + return; + fi + + # clean up old files + rm -f "$SERVER_DIR"/*.jar + rm -f "$SERVER_DIR"/*.jar.log + rm -f "$SERVER_DIR"/*.bat + rm -f "$SERVER_DIR/run.sh" + + # update the jar + log "jar is out of date... updating" + jar_url="$(get_key "JAR_URL")" + jar_name="$(get_key "JAR_NAME")" + log "downloading '$jar_url'" + wget -q "$jar_url" -O "$SERVER_DIR/$jar_name" + MCLAUNCHER_BINARY="$jar_name" +} + +# +# INSTALL STEP +# some mc types need an extra install step to setup the server files before running +# + +install_step_forge() { + log "installing forge server" + jar_name="$(get_key "JAR_NAME")" + java -jar "$SERVER_DIR/$jar_name" --installServer + + binary_step_forge + if [ "$MCLAUNCHER_BINARY" = "" ]; then + error "could not locate forge binary" + fi +} + +install_step() { + step "install" + + type="$(get_key "MC_TYPE")" + case "$type" in + "forge") + install_step_forge + ;; + *) + log "install step not needed for '$type'" + ;; + esac +} + +# +# EXECUTE STEP +# run the thing!!!!!! +# + +execute_step_default() { + jar_name="$(get_key "JAR_NAME")" + exec java $JVMARGS -jar "$SERVER_DIR/$jar_name" nogui +} + +execute_step_forge() { + if [ -f "$SERVER_DIR/run.sh" ]; then + echo "$JVMARGS" > "$SERVER_DIR/user_jvm_args.txt" + chmod +x "$SERVER_DIR/run.sh" + exec "$SERVER_DIR/run.sh" nogui + else + exec java $JVMARGS -jar "$SERVER_DIR/$MCLAUNCHER_BINARY" nogui + fi +} + +execute_step() { + step "execute" + + echo "eula=true" > "$SERVER_DIR/eula.txt" + + type="$(get_key "MC_TYPE")" + case "$type" in + "forge") + execute_step_forge + ;; + *) + execute_step_default + ;; + esac +} + +chk_command() { + if ! command -v "$1" > /dev/null; then + >&2 echo "error: command '$1' could not be found" + exit 1 + fi +} + +help() { + printf "usage: mclauncher [options]\n\n" + printf "options:\n" + printf "\t-h\tshow this message\n" + printf "\t-l\tshow logging (verbose)\n\n" + printf "environment:\n" + printf "\tsee 'mcjar -h' for environment\n" +} + +chk_command mcjar +chk_command java +chk_command awk +chk_command getopts + +while getopts "hl" arg 2>/dev/null; do + case "$arg" in + h) + help + exit 0 + ;; + l) + MCLAUNCHER_QUIET=0 + ;; + ?) + error "unknown option" + ;; + esac; +done; + +mkdir -p "$SERVER_DIR" +cd "$SERVER_DIR" + +info_step +binary_step +download_step +install_step +execute_step |