gradlew

#!/bin/sh

#
# Copyright © 2015-2021 the original authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
#

##############################################################################
#
#   Gradle start up script for POSIX generated by Gradle.
#
#   Important for running:
#
#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
#       noncompliant, but you have some other compliant shell such as ksh or
#       bash, then to run this script, type that shell name before the whole
#       command line, like:
#
#           ksh Gradle
#
#       Busybox and similar reduced shells will NOT work, because this script
#       requires all of these POSIX shell features:
#         * functions;
#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
#         * compound commands having a testable exit status, especially «case»;
#         * various built-in commands including «command», «set», and «ulimit».
#
#   Important for patching:
#
#   (2) This script targets any POSIX shell, so it avoids extensions provided
#       by Bash, Ksh, etc; in particular arrays are avoided.
#
#       The "traditional" practice of packing multiple parameters into a
#       space-separated string is a well documented source of bugs and security
#       problems, so this is (mostly) avoided, by progressively accumulating
#       options in "$@", and eventually passing that to Java.
#
#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
#       see the in-line comments for details.
#
#       (3) This script is generated from the Groovy template
#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
#       within the Gradle project.
#
##############################################################################

# Attempt to set APP_HOME
app_path=$0
while
    APP_HOME=${app_path%"${app_path##*/}"}
    [ -h "$app_path" ]
do
    ls=$( ls -ld "$app_path" )
    link=${ls#*' -> '}
    case $link in
      /*)   app_path=$link ;;
      *)    app_path=$APP_HOME$link ;;
    esac
done
APP_BASE_NAME=${0##*/}
APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit

MAX_FD=maximum
warn () { echo "$*" >&2; }
die () { echo; echo "$*"; echo; exit 1; } >&2

cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in
  CYGWIN* )         cygwin=true  ;;
  Darwin* )         darwin=true  ;;
  MSYS* | MINGW* )  msys=true    ;;
  NONSTOP* )        nonstop=true ;;
esac

CLASSPATH="\\\"\\\""

if [ -n "$JAVA_HOME" ] ; then
    JAVACMD=$JAVA_HOME/bin/java
    [ ! -x "$JAVACMD" ] && die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME"
else
    JAVACMD=java
    command -v java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH."
fi

if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
    case $MAX_FD in
      max*)
        MAX_FD=$( ulimit -H -n ) || warn "Could not query maximum file descriptor limit"
    esac
    case $MAX_FD in
      '' | soft) :;;
      *)
        ulimit -n "$MAX_FD" || warn "Could not set maximum file descriptor limit to $MAX_FD"
    esac
fi

if "$cygwin" || "$msys" ; then
    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
    JAVACMD=$( cygpath --unix "$JAVACMD" )
fi

DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
set -- \
        "-Dorg.gradle.appname=$APP_BASE_NAME" \
        -classpath "$CLASSPATH" \
        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
        "$@"

command -v xargs >/dev/null 2>&1 || die "xargs is not available"
eval "set -- $(
        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
        xargs -n1 |
        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
        tr '\n' ' '
    )" '"$@"'
exec "$JAVACMD" "$@"