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
#
#    http://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.
# ----------------------------------------------------------------------------

# ----------------------------------------------------------------------------
# Maven Start Up Batch script
#
# Required ENV vars:
# ------------------
#   JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
#   M2_HOME - location of maven2's installed home dir
#   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 /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 "$JAVA_HOME" ]; then
        if [ -x "/usr/libexec/java_home" ]; then
            export JAVA_HOME="$(/usr/libexec/java_home)"
        else
            export JAVA_HOME="/Library/Java/Home"
        fi
    fi
    ;;
esac

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

if [ -z "$M2_HOME" ]; then
    ## resolve links - $0 may be a link to maven's home
    PRG="$0"

    # need this for relative symlinks
    while [ -h "$PRG" ]; do
        ls=$(ls -ld "$PRG")
        link=$(expr "$ls" : '.*-> \(.*\)$')
        if expr "$link" : '/.*' >/dev/null; then
            PRG="$link"
        else
            PRG="$(dirname "$PRG")/$link"
        fi
    done

    saveddir=$(pwd)

    M2_HOME=$(dirname "$PRG")/..

    # make it fully qualified
    M2_HOME=$(cd "$M2_HOME" && pwd)

    cd "$saveddir"
    # echo Using m2 at $M2_HOME
fi

# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin; then
    [ -n "$M2_HOME" ] &&
        M2_HOME=$(cygpath --unix "$M2_HOME")
    [ -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 $mingw; then
    [ -n "$M2_HOME" ] &&
        M2_HOME="$( (
            cd "$M2_HOME"
            pwd
        ))"
    [ -n "$JAVA_HOME" ] &&
        JAVA_HOME="$( (
            cd "$JAVA_HOME"
            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="$JAVA_HOME/bin/java"
        fi
    else
        JAVACMD="$(which 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 "$wdir/.."
                pwd
            )
        fi
        # end of workaround
    done
    echo "${basedir}"
}

# concatenates all lines of a file
concat_lines() {
    if [ -f "$1" ]; then
        echo "$(tr -s '\n' ' ' <"$1")"
    fi
}

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

##########################################################################################
# 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.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
    if [ "$MVNW_VERBOSE" = true ]; then
        echo "Found .mvn/wrapper/maven-wrapper.jar"
    fi
else
    if [ "$MVNW_VERBOSE" = true ]; then
        echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
    fi
    if [ -n "$MVNW_REPOURL" ]; then
        jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
    else
        jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
    fi
    while IFS="=" read -r key value; do
        case "$key" in wrapperUrl)
            jarUrl="$value"
            break
            ;;
        esac
    done <"$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
    if [ "$MVNW_VERBOSE" = true ]; then
        echo "Downloading from: $jarUrl"
    fi
    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
    if $cygwin; then
        wrapperJarPath=$(cygpath --path --windows "$wrapperJarPath")
    fi

    if command -v wget >/dev/null; then
        if [ "$MVNW_VERBOSE" = true ]; then
            echo "Found wget ... using wget"
        fi
        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
            wget "$jarUrl" -O "$wrapperJarPath"
        else
            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
        fi
    elif command -v curl >/dev/null; then
        if [ "$MVNW_VERBOSE" = true ]; then
            echo "Found curl ... using curl"
        fi
        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
            curl -o "$wrapperJarPath" "$jarUrl" -f
        else
            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
        fi

    else
        if [ "$MVNW_VERBOSE" = true ]; then
            echo "Falling back to using Java to download"
        fi
        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
        # For Cygwin, switch paths to Windows format before running javac
        if $cygwin; then
            javaClass=$(cygpath --path --windows "$javaClass")
        fi
        if [ -e "$javaClass" ]; then
            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
                if [ "$MVNW_VERBOSE" = true ]; then
                    echo " - Compiling MavenWrapperDownloader.java ..."
                fi
                # Compiling the Java class
                ("$JAVA_HOME/bin/javac" "$javaClass")
            fi
            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
                # Running the downloader
                if [ "$MVNW_VERBOSE" = true ]; then
                    echo " - Running MavenWrapperDownloader.java ..."
                fi
                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
            fi
        fi
    fi
fi
##########################################################################################
# End of extension
##########################################################################################

export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
    echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"

# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
    [ -n "$M2_HOME" ] &&
        M2_HOME=$(cygpath --path --windows "$M2_HOME")
    [ -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

exec "$JAVACMD" \
    $MAVEN_OPTS \
    -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
    "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
    ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"