kafka/gradlew at 3.2 · colinkuo/kafka

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#!/bin/sh

# 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.

##############################################################################

# 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.

# There are tweaks for specific operating systems such as AIX, CygWin,

# Darwin, MinGW, and NonStop.

# (3) This script is generated from the Groovy template

# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt

# within the Gradle project.

# You can find Gradle at https://github.com/gradle/gradle/.

##############################################################################

# Attempt to set APP_HOME

# Resolve links: $0 may be a link

app_path=$0

# Need this for daisy-chained symlinks.

while

APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path

[ -h "$app_path" ]

ls=$( ls -ld "$app_path" )

link=${ls#*' -> '}

case $link in #(

/*) app_path=$link ;; #(

*) app_path=$APP_HOME$link ;;

esac

done

APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit

APP_NAME="Gradle"

APP_BASE_NAME=${0##*/}

# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.

DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'

# Use the maximum available, or set MAX_FD != -1 to use that value.

MAX_FD=maximum

warn () {

echo "$*"

} >&2

die () {

echo

echo "$*"

echo

exit 1

} >&2

# OS specific support (must be 'true' or 'false').

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

# Loop in case we encounter an error.

for attempt in 1 2 3; do

if [ ! -e "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" ]; then

if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v7.3.3/gradle/wrapper/gradle-wrapper.jar"; then

rm -f "$APP_HOME/gradle/wrapper/gradle-wrapper.jar"

# Pause for a bit before looping in case the server throttled us.

sleep 5

continue

done

CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar

# Determine the Java command to use to start the JVM.

if [ -n "$JAVA_HOME" ] ; then

if [ -x "$JAVA_HOME/jre/sh/java" ] ; then

# IBM's JDK on AIX uses strange locations for the executables

JAVACMD=$JAVA_HOME/jre/sh/java

else

JAVACMD=$JAVA_HOME/bin/java

if [ ! -x "$JAVACMD" ] ; then

die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME

Please set the JAVA_HOME variable in your environment to match the

< 9749 /div>

location of your Java installation."

else

JAVACMD=java

which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

Please set the JAVA_HOME variable in your environment to match the

location of your Java installation."

# Increase the maximum file descriptors if we can.

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

# Collect all arguments for the java command, stacking in reverse order:

# * args from the command line

# * the main class name

# * -classpath

# * -D...appname settings

# * --module-path (only if needed)

# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.

# For Cygwin or MSYS, switch paths to Windows format before running java

if "$cygwin" || "$msys" ; then

APP_HOME=$( cygpath --path --mixed "$APP_HOME" )

CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )

JAVACMD=$( cygpath --unix "$JAVACMD" )

# Now convert the arguments - kludge to limit ourselves to /bin/sh

for arg do

case $arg in #(

-*) false ;; # don't mess with options #(

/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath

[ -e "$t" ] ;; #(

*) false ;;

esac

then

arg=$( cygpath --path --ignore --mixed "$arg" )

# Roll the args list around exactly as many times as the number of

# args, so each arg winds up back in the position where it started, but

# possibly modified.

# NB: a `for` loop captures its iteration list before it begins, so

# changing the positional parameters here affects neither the number of

# iterations, nor the values presented in `arg`.

shift # remove old arg

set -- "$@" "$arg" # push replacement arg

done

# Collect all arguments for the java command;

# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of

# shell script including quotes and variable substitutions, so put them in

# double quotes to make sure that they get re-expanded; and

# * put everything else in single quotes, so that it's not re-expanded.

set -- \

"-Dorg.gradle.appname=$APP_BASE_NAME" \

-classpath "$CLASSPATH" \

org.gradle.wrapper.GradleWrapperMain \

"$@"

# Use "xargs" to parse quoted args.

# With -n1 it outputs one arg per line, with the quotes and backslashes removed.

# In Bash we could simply go:

# readarray ARGS < <( xargs -n1 <<<"$var" ) &&

# set -- "${ARGS[@]}" "$@"

# but POSIX shell has neither arrays nor command substitution, so instead we

# post-process each arg (as a line of input to sed) to backslash-escape any

# character that might be a shell metacharacter, then use eval to reverse

# that process (while maintaining the separation between arguments), and wrap

# the whole thing up as a single "set" statement.

# This will of course break if any of these variables contains a newline or

# an unmatched quote.

eval "set -- $(

printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |

xargs -n1 |

sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |

tr '\n' ' '

)" '"$@"'

exec "$JAVACMD" "$@"

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