mvnw

#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
# ----------------------------------------------------------------------------

# ----------------------------------------------------------------------------
# Apache Maven Wrapper startup batch script, version 3.2.0
#
# Required ENV vars:
# ------------------
# JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
# MAVEN_OPTS - parameters passed to the Java VM when running Maven
# e.g. to debug Maven itself, use
# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
# ----------------------------------------------------------------------------

if [ -z "$MAVEN_SKIP_RC" ] ; then

 if [ -f /usr/local/etc/mavenrc ] ; then
 . /usr/local/etc/mavenrc
 fi

 if [ -f /etc/mavenrc ] ; then
 . /etc/mavenrc
 fi

 if [ -f "$HOME/.mavenrc" ] ; then
 . "$HOME/.mavenrc"
 fi

fi

# OS specific support. $var _must_ be set to either true or false.
cygwin=false;
darwin=false;
mingw=false
case "$(uname)" in
 CYGWIN*) cygwin=true ;;
 MINGW*) mingw=true;;
 Darwin*) darwin=true
 # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
 # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
 if [ -z "$JAVA_HOME" ]; then
 if [ -x "/usr/libexec/java_home" ]; then
 JAVA_HOME="$(/usr/libexec/java_home)"; export JAVA_HOME
 else
 JAVA_HOME="/Library/Java/Home"; export JAVA_HOME
 fi
 fi
 ;;
esac

if [ -z "$JAVA_HOME" ] ; then
 if [ -r /etc/gentoo-release ] ; then
 JAVA_HOME=$(java-config --jre-home)
 fi
fi

# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
 [ -n "$JAVA_HOME" ] &&
 JAVA_HOME=$(cygpath --unix "$JAVA_HOME")
 [ -n "$CLASSPATH" ] &&
 CLASSPATH=$(cygpath --path --unix "$CLASSPATH")
fi

# For Mingw, ensure paths are in UNIX format before anything is touched
if $mingw ; then
 [ -n "$JAVA_HOME" ] && [ -d "$JAVA_HOME" ] &&
 JAVA_HOME="$(cd "$JAVA_HOME" || (echo "cannot cd into $JAVA_HOME."; exit 1); pwd)"
fi

if [ -z "$JAVA_HOME" ]; then
 javaExecutable="$(which javac)"
 if [ -n "$javaExecutable" ] && ! [ "$(expr "\"$javaExecutable\"" : '\([^ ]*\)')" = "no" ]; then
 # readlink(1) is not available as standard on Solaris 10.
 readLink=$(which readlink)
 if [ ! "$(expr "$readLink" : '\([^ ]*\)')" = "no" ]; then
 if $darwin ; then
 javaHome="$(dirname "\"$javaExecutable\"")"
 javaExecutable="$(cd "\"$javaHome\"" && pwd -P)/javac"
 else
 javaExecutable="$(readlink -f "\"$javaExecutable\"")"
 fi
 javaHome="$(dirname "\"$javaExecutable\"")"
 javaHome=$(expr "$javaHome" : '\(.*\)/bin')
 JAVA_HOME="$javaHome"
 export JAVA_HOME
 fi
 fi
fi

if [ -z "$JAVACMD" ] ; then
 if [ -n "$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="$JAVA_HOME/bin/java"
 fi
 else
 JAVACMD="$(\unset -f command 2>/dev/null; \command -v java)"
 fi
fi

if [ ! -x "$JAVACMD" ] ; then
 echo "Error: JAVA_HOME is not defined correctly." >&2
 echo " We cannot execute $JAVACMD" >&2
 exit 1
fi

if [ -z "$JAVA_HOME" ] ; then
 echo "Warning: JAVA_HOME environment variable is not set."
fi

# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
 if [ -z "$1" ]
 then
 echo "Path not specified to find_maven_basedir"
 return 1
 fi

 basedir="$1"
 wdir="$1"
 while [ "$wdir" != '/' ] ; do
 if [ -d "$wdir"/.mvn ] ; then
 basedir=$wdir
 break
 fi
 # workaround for JBEAP-8937 (on Solaris 10/Sparc)
 if [ -d "${wdir}" ]; then
 wdir=$(cd "$wdir/.." || exit 1; pwd)
 fi
 # end of workaround
 done
 printf '%s' "$(cd "$basedir" || exit 1; pwd)"
}

# concatenates all lines of a file
concat_lines() {
 if [ -f "$1" ]; then
 # Remove \r in case we run on Windows within Git Bash
 # and check out the repository with auto CRLF management
 # enabled. Otherwise, we may read lines that are delimited with
 # \r\n and produce $'-Xarg\r' rather than -Xarg due to word
 # splitting rules.
 tr -s '\r\n' ' ' < "$1"
 fi
}

log() {
 if [ "$MVNW_VERBOSE" = true ]; then
 printf '%s\n' "$1"
 fi
}

BASE_DIR=$(find_maven_basedir "$(dirname "$0")")
if [ -z "$BASE_DIR" ]; then
 exit 1;
fi

MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}; export MAVEN_PROJECTBASEDIR
log "$MAVEN_PROJECTBASEDIR"

##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
wrapperJarPath="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar"
if [ -r "$wrapperJarPath" ]; then
 log "Found $wrapperJarPath"
else
 log "Couldn't find $wrapperJarPath, downloading it ..."

 if [ -n "$MVNW_REPOURL" ]; then
 wrapperUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
 else
 wrapperUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
 fi
 while IFS="=" read -r key value; do
 # Remove '\r' from value to allow usage on windows as IFS does not consider '\r' as a separator ( considers space, tab, new line ('\n'), and custom '=' )
 safeValue=$(echo "$value" | tr -d '\r')
 case "$key" in (wrapperUrl) wrapperUrl="$safeValue"; break ;;
 esac
 done < "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
 log "Downloading from: $wrapperUrl"

 if $cygwin; then
 wrapperJarPath=$(cygpath --path --windows "$wrapperJarPath")
 fi

 if command -v wget > /dev/null; then
 log "Found wget ... using wget"
 [ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--quiet"
 if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
 wget $QUIET "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
 else
 wget $QUIET --http-user="$MVNW_USERNAME" --http-password="$MVNW_PASSWORD" "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
 fi
 elif command -v curl > /dev/null; then
 log "Found curl ... using curl"
 [ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--silent"
 if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
 curl $QUIET -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
 else
 curl $QUIET --user "$MVNW_USERNAME:$MVNW_PASSWORD" -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
 fi
 else
 log "Falling back to using Java to download"
 javaSource="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.java"
 javaClass="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.class"
 # For Cygwin, switch paths to Windows format before running javac
 if $cygwin; then
 javaSource=$(cygpath --path --windows "$javaSource")
 javaClass=$(cygpath --path --windows "$javaClass")
 fi
 if [ -e "$javaSource" ]; then
 if [ ! -e "$javaClass" ]; then
 log " - Compiling MavenWrapperDownloader.java ..."
 ("$JAVA_HOME/bin/javac" "$javaSource")
 fi
 if [ -e "$javaClass" ]; then
 log " - Running MavenWrapperDownloader.java ..."
 ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$wrapperUrl" "$wrapperJarPath") || rm -f "$wrapperJarPath"
 fi
 fi
 fi
fi
##########################################################################################
# End of extension
##########################################################################################

# If specified, validate the SHA-256 sum of the Maven wrapper jar file
wrapperSha256Sum=""
while IFS="=" read -r key value; do
 case "$key" in (wrapperSha256Sum) wrapperSha256Sum=$value; break ;;
 esac
done < "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
if [ -n "$wrapperSha256Sum" ]; then
 wrapperSha256Result=false
 if command -v sha256sum > /dev/null; then
 if echo "$wrapperSha256Sum $wrapperJarPath" | sha256sum -c > /dev/null 2>&1; then
 wrapperSha256Result=true
 fi
 elif command -v shasum > /dev/null; then
 if echo "$wrapperSha256Sum $wrapperJarPath" | shasum -a 256 -c > /dev/null 2>&1; then
 wrapperSha256Result=true
 fi
 else
 echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available."
 echo "Please install either command, or disable validation by removing 'wrapperSha256Sum' from your maven-wrapper.properties."
 exit 1
 fi
 if [ $wrapperSha256Result = false ]; then
 echo "Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised." >&2
 echo "Investigate or delete $wrapperJarPath to attempt a clean download." >&2
 echo "If you updated your Maven version, you need to update the specified wrapperSha256Sum property." >&2
 exit 1
 fi
fi

MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"

# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
 [ -n "$JAVA_HOME" ] &&
 JAVA_HOME=$(cygpath --path --windows "$JAVA_HOME")
 [ -n "$CLASSPATH" ] &&
 CLASSPATH=$(cygpath --path --windows "$CLASSPATH")
 [ -n "$MAVEN_PROJECTBASEDIR" ] &&
 MAVEN_PROJECTBASEDIR=$(cygpath --path --windows "$MAVEN_PROJECTBASEDIR")
fi

# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $*"
export MAVEN_CMD_LINE_ARGS

WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain

# shellcheck disable=SC2086 # safe args
exec "$JAVACMD" \
 $MAVEN_OPTS \
 $MAVEN_DEBUG_OPTS \
 -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
 "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
 ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"