1#!/bin/sh23#4# Copyright © 2015-2021 the original authors.5#6# Licensed under the Apache License, Version 2.0 (the "License");7# you may not use this file except in compliance with the License.8# You may obtain a copy of the License at9#10# https://www.apache.org/licenses/LICENSE-2.011#12# Unless required by applicable law or agreed to in writing, software13# distributed under the License is distributed on an "AS IS" BASIS,14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.15# See the License for the specific language governing permissions and16# limitations under the License.17#18# SPDX-License-Identifier: Apache-2.019#2021##############################################################################22#23# Gradle start up script for POSIX generated by Gradle.24#25# Important for running:26#27# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is28# noncompliant, but you have some other compliant shell such as ksh or29# bash, then to run this script, type that shell name before the whole30# command line, like:31#32# ksh Gradle33#34# Busybox and similar reduced shells will NOT work, because this script35# requires all of these POSIX shell features:36# * functions;37# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,38# «${var#prefix}», «${var%suffix}», and «$( cmd )»;39# * compound commands having a testable exit status, especially «case»;40# * various built-in commands including «command», «set», and «ulimit».41#42# Important for patching:43#44# (2) This script targets any POSIX shell, so it avoids extensions provided45# by Bash, Ksh, etc; in particular arrays are avoided.46#47# The "traditional" practice of packing multiple parameters into a48# space-separated string is a well documented source of bugs and security49# problems, so this is (mostly) avoided, by progressively accumulating50# options in "$@", and eventually passing that to Java.51#52# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,53# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;54# see the in-line comments for details.55#56# There are tweaks for specific operating systems such as AIX, CygWin,57# Darwin, MinGW, and NonStop.58#59# (3) This script is generated from the Groovy template60# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt61# within the Gradle project.62#63# You can find Gradle at https://github.com/gradle/gradle/.64#65##############################################################################6667# Attempt to set APP_HOME6869# Resolve links: $0 may be a link70app_path=$07172# Need this for daisy-chained symlinks.73while74 APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path75 [ -h "$app_path" ]76do77 ls=$( ls -ld "$app_path" )78 link=${ls#*' -> '}79 case $link in #(80 /*) app_path=$link ;; #(81 *) app_path=$APP_HOME$link ;;82 esac83done8485# This is normally unused86# shellcheck disable=SC203487APP_BASE_NAME=${0##*/}88# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)89APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit9091# Use the maximum available, or set MAX_FD != -1 to use that value.92MAX_FD=maximum9394warn () {95 echo "$*"96} >&29798die () {99 echo100 echo "$*"101 echo102 exit 1103} >&2104105# OS specific support (must be 'true' or 'false').106cygwin=false107msys=false108darwin=false109nonstop=false110case "$( uname )" in #(111 CYGWIN* ) cygwin=true ;; #(112 Darwin* ) darwin=true ;; #(113 MSYS* | MINGW* ) msys=true ;; #(114 NONSTOP* ) nonstop=true ;;115esac116117CLASSPATH="\\\"\\\""118119120# Determine the Java command to use to start the JVM.121if [ -n "$JAVA_HOME" ] ; then122 if [ -x "$JAVA_HOME/jre/sh/java" ] ; then123 # IBM's JDK on AIX uses strange locations for the executables124 JAVACMD=$JAVA_HOME/jre/sh/java125 else126 JAVACMD=$JAVA_HOME/bin/java127 fi128 if [ ! -x "$JAVACMD" ] ; then129 die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME130131Please set the JAVA_HOME variable in your environment to match the132location of your Java installation."133 fi134else135 JAVACMD=java136 if ! command -v java >/dev/null 2>&1137 then138 die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.139140Please set the JAVA_HOME variable in your environment to match the141location of your Java installation."142 fi143fi144145# Increase the maximum file descriptors if we can.146if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then147 case $MAX_FD in #(148 max*)149 # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.150 # shellcheck disable=SC2039,SC3045151 MAX_FD=$( ulimit -H -n ) ||152 warn "Could not query maximum file descriptor limit"153 esac154 case $MAX_FD in #(155 '' | soft) :;; #(156 *)157 # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.158 # shellcheck disable=SC2039,SC3045159 ulimit -n "$MAX_FD" ||160 warn "Could not set maximum file descriptor limit to $MAX_FD"161 esac162fi163164# Collect all arguments for the java command, stacking in reverse order:165# * args from the command line166# * the main class name167# * -classpath168# * -D...appname settings169# * --module-path (only if needed)170# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.171172# For Cygwin or MSYS, switch paths to Windows format before running java173if "$cygwin" || "$msys" ; then174 APP_HOME=$( cygpath --path --mixed "$APP_HOME" )175 CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )176177 JAVACMD=$( cygpath --unix "$JAVACMD" )178179 # Now convert the arguments - kludge to limit ourselves to /bin/sh180 for arg do181 if182 case $arg in #(183 -*) false ;; # don't mess with options #(184 /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath185 [ -e "$t" ] ;; #(186 *) false ;;187 esac188 then189 arg=$( cygpath --path --ignore --mixed "$arg" )190 fi191 # Roll the args list around exactly as many times as the number of192 # args, so each arg winds up back in the position where it started, but193 # possibly modified.194 #195 # NB: a `for` loop captures its iteration list before it begins, so196 # changing the positional parameters here affects neither the number of197 # iterations, nor the values presented in `arg`.198 shift # remove old arg199 set -- "$@" "$arg" # push replacement arg200 done201fi202203204# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.205DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'206207# Collect all arguments for the java command:208# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,209# and any embedded shellness will be escaped.210# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be211# treated as '${Hostname}' itself on the command line.212213set -- \214 "-Dorg.gradle.appname=$APP_BASE_NAME" \215 -classpath "$CLASSPATH" \216 -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \217 "$@"218219# Stop when "xargs" is not available.220if ! command -v xargs >/dev/null 2>&1221then222 die "xargs is not available"223fi224225# Use "xargs" to parse quoted args.226#227# With -n1 it outputs one arg per line, with the quotes and backslashes removed.228#229# In Bash we could simply go:230#231# readarray ARGS < <( xargs -n1 <<<"$var" ) &&232# set -- "${ARGS[@]}" "$@"233#234# but POSIX shell has neither arrays nor command substitution, so instead we235# post-process each arg (as a line of input to sed) to backslash-escape any236# character that might be a shell metacharacter, then use eval to reverse237# that process (while maintaining the separation between arguments), and wrap238# the whole thing up as a single "set" statement.239#240# This will of course break if any of these variables contains a newline or241# an unmatched quote.242#243244eval "set -- $(245 printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |246 xargs -n1 |247 sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |248 tr '\n' ' '249 )" '"$@"'250251exec "$JAVACMD" "$@"