#!/bin/bash
#Clojure-clj-mybatis-mapper script.
#Modified from leiningen:https://raw.github.com/technomancy/leiningen/preview/bin/lein
#License: Eclipse Public License,same as leiningen and clojure.

export CLJ_MYBATIS_MAPPER_VERSION="0.1.0-SNAPSHOT"

case $CLJ_MYBATIS_MAPPER_VERSION in
    *SNAPSHOT) SNAPSHOT="YES" ;;
    *) SNAPSHOT="NO" ;;
esac

if [ `id -u` -eq 0 ] && [ "$CLJ_MYBATIS_MAPPER_ROOT" = "" ]; then
    echo "WARNING: You're currently running as root; probably by accident."
    echo "Press control-C to abort or Enter to continue as root."
    echo "Set CLJ_MYBATIS_MAPPER_ROOT to disable this warning."
    read _
fi

NOT_FOUND=1
ORIGINAL_PWD="$PWD"
while [ ! -r "$PWD/clj-mybatis-mapper.clj" ] && [ "$PWD" != "/" ] && [ $NOT_FOUND -ne 0 ]
do
    cd ..
    if [ "$(dirname "$PWD")" = "/" ]; then
        NOT_FOUND=0
        cd "$ORIGINAL_PWD"
    fi
done

export CLJ_MYBATIS_MAPPER_HOME=${CLJ_MYBATIS_MAPPER_HOME:-"$HOME/.clj-mybatis-mapper"}

if [ "$OSTYPE" = "cygwin" ]; then
    export CLJ_MYBATIS_MAPPER_HOME=`cygpath -w $CLJ_MYBATIS_MAPPER_HOME`
fi

CLJ_MYBATIS_MAPPER_JAR="$CLJ_MYBATIS_MAPPER_HOME/self-installs/clj-mybatis-mapper-$CLJ_MYBATIS_MAPPER_VERSION-standalone.jar"

# normalize $0 on certain BSDs
if [ "$(dirname "$0")" = "." ]; then
    SCRIPT="$(which $(basename "$0"))"
else
    SCRIPT="$0"
fi

# resolve symlinks to the script itself portably
while [ -h "$SCRIPT" ] ; do
    ls=`ls -ld "$SCRIPT"`
    link=`expr "$ls" : '.*-> \(.*\)$'`
    if expr "$link" : '/.*' > /dev/null; then
        SCRIPT="$link"
    else
        SCRIPT="$(dirname "$SCRIPT"$)/$link"
    fi
done

BIN_DIR="$(dirname "$SCRIPT")"

if [ -r "$BIN_DIR/../src/clj-mybatis-mapper/main.clj" ]; then
    # Running from source checkout
    CLJ_MYBATIS_MAPPER_DIR="$(dirname "$BIN_DIR")"
    CLJ_MYBATIS_MAPPER_LIBS="$(find -H "$CLJ_MYBATIS_MAPPER_DIR/lib" -mindepth 1 -maxdepth 1 -print0 2> /dev/null | tr \\0 \:)"
    CLASSPATH="$CLASSPATH:$CLJ_MYBATIS_MAPPER_LIBS:$CLJ_MYBATIS_MAPPER_DIR/src:$CLJ_MYBATIS_MAPPER_DIR/classes:$CLJ_MYBATIS_MAPPER_DIR/resources:$CLJ_MYBATIS_MAPPER_JAR"

    if [ "$CLJ_MYBATIS_MAPPER_LIBS" = "" -a "$1" != "self-install" -a ! -r "$CLJ_MYBATIS_MAPPER_JAR" ]; then
        echo "CLJ_MYBATIS_MAPPER is missing its dependencies. Please see \"Building\" in the README."
        exit 1
    fi
else
    # Not running from a checkout
    CLASSPATH="$CLASSPATH:$CLJ_MYBATIS_MAPPER_JAR"

    if [ ! -r "$CLJ_MYBATIS_MAPPER_JAR" -a "$1" != "self-install" ]; then
        "$0" self-install
    fi
fi

HTTP_CLIENT=${HTTP_CLIENT:-"wget -O"}
if type -p curl >/dev/null 2>&1; then
    if [ "$https_proxy" != "" ]; then
        CURL_PROXY="-x $https_proxy"
    fi
    HTTP_CLIENT="curl $CURL_PROXY -f -L -o"
fi

export JAVA_CMD=${JAVA_CMD:-"java"}
export CLJ_MYBATIS_MAPPER_JAVA_CMD=${CLJ_MYBATIS_MAPPER_JAVA_CMD:-$JAVA_CMD}

# Support $JAVA_OPTS for backwards-compatibility.
export JVM_OPTS="${JVM_OPTS:-"$JAVA_OPTS"}"

# TODO: investigate http://skife.org/java/unix/2011/06/20/really_executable_jars.html
# If you're packaging this for a package manager (.deb, homebrew, etc)
# you need to remove the self-install and upgrade functionality or see lein-pkg.
if [ "$1" = "self-install" ]; then
    if [ -r "$CLJ_MYBATIS_MAPPER_JAR" ]; then
      echo "The self-install jar already exists at $CLJ_MYBATIS_MAPPER_JAR."
      echo "If you wish to re-download, delete it and rerun \"$0 self-install\"."
      exit 1
    fi
    echo "Downloading CLJ_MYBATIS_MAPPER now..."
    CLJ_MYBATIS_MAPPER_DIR=`dirname "$CLJ_MYBATIS_MAPPER_JAR"`
    mkdir -p "$CLJ_MYBATIS_MAPPER_DIR"
    CLJ_MYBATIS_MAPPER_URL="https://github.com/lysu/clj-mybatis-mapper/releases/download/1.0/clj-mybatis-mapper-0.1.0-SNAPSHOT-standalone.jar"
    $HTTP_CLIENT "$CLJ_MYBATIS_MAPPER_JAR" "$CLJ_MYBATIS_MAPPER_URL"
    if [ $? != 0 ]; then
        echo "Failed to download $CLJ_MYBATIS_MAPPER_URL"
        echo "If you have an old version of libssl you may not have the correct"
        echo "certificate authority. Either upgrade or set HTTP_CLIENT to insecure:"
        echo "  export HTTP_CLIENT=\"wget --no-check-certificate -O\" # or"
        echo "  export HTTP_CLIENT=\"curl --insecure -f -L -o"
        if [ $SNAPSHOT = "YES" ]; then
            echo "If you have Maven installed, you can do"
            echo "mvn dependency:copy-dependencies; mv target/dependency lib"
            echo "See README.md for further SNAPSHOT build instructions."
        fi
        rm $CLJ_MYBATIS_MAPPER_JAR 2> /dev/null
        exit 1
    fi
elif [ "$1" = "upgrade" ]; then
    if [ "$CLJ_MYBATIS_MAPPER_DIR" != "" ]; then
        echo "The upgrade task is not meant to be run from a checkout."
        exit 1
    fi
    if [ $SNAPSHOT = "YES" ]; then
        echo "The upgrade task is only meant for stable releases."
        echo "See the \"Hacking\" section of the README."
        exit 1
    fi
    if [ ! -w "$SCRIPT" ]; then
        echo "You do not have permission to upgrade the installation in $SCRIPT"
        exit 1
    else
        TARGET_VERSION="${2:-"stable"}"
        echo "The script at $SCRIPT will be upgraded to the latest $TARGET_VERSION version."
        echo -n "Do you want to continue [Y/n]? "
        read RESP
        case "$RESP" in
            y|Y|"")
                echo
                echo "Upgrading..."
                TARGET="/tmp/clj-mybatis-mapper-$$-upgrade"
                if ["$OSTYPE" = "cygwin" ]; then
                    TARGET=`cygpath -w $TARGET`
                fi
                CLJ_MYBATIS_MAPPER_SCRIPT_URL="https://github.com/lysu/clj-mybatis-mapper/raw/$TARGET_VERSION/bin/clj-mybatis-mapper"
                $HTTP_CLIENT "$TARGET" "$CLJ_MYBATIS_MAPPER_SCRIPT_URL" \
                    && mv "$TARGET" "$SCRIPT" \
                    && chmod +x "$SCRIPT" \
                    && echo && "$SCRIPT" self-install && echo && echo "Now running" `$SCRIPT version`
                exit $?;;
            *)
                echo "Aborted."
                exit 1;;
        esac
    fi
else
    if [ "$OSTYPE" = "cygwin" ]; then
        # When running on Cygwin, use Windows-style paths for java
        ORIGINAL_PWD=`cygpath -w "$ORIGINAL_PWD"`
        CLASSPATH=`cygpath -wp "$CLASSPATH"`
    fi

    if [ $DEBUG ]; then
        echo "Classpath: $CLASSPATH"
    fi

    $CLJ_MYBATIS_MAPPER_JAVA_CMD \
            -client -XX:+TieredCompilation \
            $CLJ_MYBATIS_MAPPER_JVM_OPTS \
            -Dfile.encoding=UTF-8 \
            -cp "$CLASSPATH" \
            clojure.main -m clj-mybatis-mapper.core "$@"

    echo "$@"

    EXIT_CODE=$?

    exit $EXIT_CODE
fi