1#!/bin/sh 2 3# 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 at 9# 10# https://www.apache.org/licenses/LICENSE-2.0 11# 12# Unless required by applicable law or agreed to in writing, software 13# 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 and 16# limitations under the License. 17# 18 19############################################################################## 20# 21# Gradle start up script for POSIX generated by Gradle. 22# 23# Important for running: 24# 25# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is 26# noncompliant, but you have some other compliant shell such as ksh or 27# bash, then to run this script, type that shell name before the whole 28# command line, like: 29# 30# ksh Gradle 31# 32# Busybox and similar reduced shells will NOT work, because this script 33# requires all of these POSIX shell features: 34# * functions; 35# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», 36# «${var#prefix}», «${var%suffix}», and «$( cmd )»; 37# * compound commands having a testable exit status, especially «case»; 38# * various built-in commands including «command», «set», and «ulimit». 39# 40# Important for patching: 41# 42# (2) This script targets any POSIX shell, so it avoids extensions provided 43# by Bash, Ksh, etc; in particular arrays are avoided. 44# 45# The "traditional" practice of packing multiple parameters into a 46# space-separated string is a well documented source of bugs and security 47# problems, so this is (mostly) avoided, by progressively accumulating 48# options in "$@", and eventually passing that to Java. 49# 50# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, 51# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; 52# see the in-line comments for details. 53# 54# There are tweaks for specific operating systems such as AIX, CygWin, 55# Darwin, MinGW, and NonStop. 56# 57# (3) This script is generated from the Groovy template 58# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt 59# within the Gradle project. 60# 61# You can find Gradle at https://github.com/gradle/gradle/. 62# 63############################################################################## 64 65# Attempt to set APP_HOME 66 67# Resolve links: $0 may be a link 68app_path=$0 69 70# Need this for daisy-chained symlinks. 71while 72 APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path 73 [ -h "$app_path" ] 74do 75 ls=$( ls -ld "$app_path" ) 76 link=${ls#*' -> '} 77 case $link in #( 78 /*) app_path=$link ;; #( 79 *) app_path=$APP_HOME$link ;; 80 esac 81done 82 83# This is normally unused 84# shellcheck disable=SC2034 85APP_BASE_NAME=${0##*/} 86# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) 87APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit 88 89# Use the maximum available, or set MAX_FD != -1 to use that value. 90MAX_FD=maximum 91 92warn () { 93 echo "$*" 94} >&2 95 96die () { 97 echo 98 echo "$*" 99 echo 100 exit 1 101} >&2 102 103# OS specific support (must be 'true' or 'false'). 104cygwin=false 105msys=false 106darwin=false 107nonstop=false 108case "$( uname )" in #( 109 CYGWIN* ) cygwin=true ;; #( 110 Darwin* ) darwin=true ;; #( 111 MSYS* | MINGW* ) msys=true ;; #( 112 NONSTOP* ) nonstop=true ;; 113esac 114 115CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 116 117 118# Determine the Java command to use to start the JVM. 119if [ -n "$JAVA_HOME" ] ; then 120 if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 121 # IBM's JDK on AIX uses strange locations for the executables 122 JAVACMD=$JAVA_HOME/jre/sh/java 123 else 124 JAVACMD=$JAVA_HOME/bin/java 125 fi 126 if [ ! -x "$JAVACMD" ] ; then 127 die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 128 129Please set the JAVA_HOME variable in your environment to match the 130location of your Java installation." 131 fi 132else 133 JAVACMD=java 134 if ! command -v java >/dev/null 2>&1 135 then 136 die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 137 138Please set the JAVA_HOME variable in your environment to match the 139location of your Java installation." 140 fi 141fi 142 143# Increase the maximum file descriptors if we can. 144if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then 145 case $MAX_FD in #( 146 max*) 147 # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. 148 # shellcheck disable=SC2039,SC3045 149 MAX_FD=$( ulimit -H -n ) || 150 warn "Could not query maximum file descriptor limit" 151 esac 152 case $MAX_FD in #( 153 '' | soft) :;; #( 154 *) 155 # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. 156 # shellcheck disable=SC2039,SC3045 157 ulimit -n "$MAX_FD" || 158 warn "Could not set maximum file descriptor limit to $MAX_FD" 159 esac 160fi 161 162# Collect all arguments for the java command, stacking in reverse order: 163# * args from the command line 164# * the main class name 165# * -classpath 166# * -D...appname settings 167# * --module-path (only if needed) 168# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. 169 170# For Cygwin or MSYS, switch paths to Windows format before running java 171if "$cygwin" || "$msys" ; then 172 APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) 173 CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) 174 175 JAVACMD=$( cygpath --unix "$JAVACMD" ) 176 177 # Now convert the arguments - kludge to limit ourselves to /bin/sh 178 for arg do 179 if 180 case $arg in #( 181 -*) false ;; # don't mess with options #( 182 /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath 183 [ -e "$t" ] ;; #( 184 *) false ;; 185 esac 186 then 187 arg=$( cygpath --path --ignore --mixed "$arg" ) 188 fi 189 # Roll the args list around exactly as many times as the number of 190 # args, so each arg winds up back in the position where it started, but 191 # possibly modified. 192 # 193 # NB: a `for` loop captures its iteration list before it begins, so 194 # changing the positional parameters here affects neither the number of 195 # iterations, nor the values presented in `arg`. 196 shift # remove old arg 197 set -- "$@" "$arg" # push replacement arg 198 done 199fi 200 201 202# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 203DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 204 205# Collect all arguments for the java command: 206# * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, 207# and any embedded shellness will be escaped. 208# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be 209# treated as '${Hostname}' itself on the command line. 210 211set -- \ 212 "-Dorg.gradle.appname=$APP_BASE_NAME" \ 213 -classpath "$CLASSPATH" \ 214 org.gradle.wrapper.GradleWrapperMain \ 215 "$@" 216 217# Stop when "xargs" is not available. 218if ! command -v xargs >/dev/null 2>&1 219then 220 die "xargs is not available" 221fi 222 223# Use "xargs" to parse quoted args. 224# 225# With -n1 it outputs one arg per line, with the quotes and backslashes removed. 226# 227# In Bash we could simply go: 228# 229# readarray ARGS < <( xargs -n1 <<<"$var" ) && 230# set -- "${ARGS[@]}" "$@" 231# 232# but POSIX shell has neither arrays nor command substitution, so instead we 233# post-process each arg (as a line of input to sed) to backslash-escape any 234# character that might be a shell metacharacter, then use eval to reverse 235# that process (while maintaining the separation between arguments), and wrap 236# the whole thing up as a single "set" statement. 237# 238# This will of course break if any of these variables contains a newline or 239# an unmatched quote. 240# 241 242eval "set -- $( 243 printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | 244 xargs -n1 | 245 sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | 246 tr '\n' ' ' 247 )" '"$@"' 248 249exec "$JAVACMD" "$@" 250