getjulia

#!/usr/bin/env bash

OS=$(uname)
ARCH="$(uname -m)"

get_julia_url() {
    local VERSION=${1}
    local MAJMIN="${VERSION%.*}"
    if [[ "$OS" == "Linux" ]]; then
        if [[ "$ARCH" == "x86_64" ]]; then
            if [[ "${VERSION}" == "master" ]]; then
                echo "https://julialangnightlies-s3.julialang.org/bin/linux/x64/julia-latest-linux64.tar.gz"
            else
                echo "https://julialang-s3.julialang.org/bin/linux/x64/${MAJMIN}/julia-${VERSION}-linux-x86_64.tar.gz"
            fi
        elif [[ "$ARCH" == "i686" ]]; then
            if [[ "${VERSION}" == "master" ]]; then
                echo "https://julialangnightlies-s3.julialang.org/bin/linux/x86/julia-latest-linux32.tar.gz"
            else
                echo "https://julialang-s3.julialang.org/bin/linux/x86/${MAJMIN}/julia-${VERSION}-linux-i686.tar.gz"
            fi
        elif [[ "$ARCH" == "armhf" ]] || [[ "$ARCH" == "armv7l" ]]; then
            if [[ "${VERSION}" == "master" ]]; then
                echo "https://julialangnightlies-s3.julialang.org/bin/linux/armv7l/julia-latest-linuxarmv7l.tar.gz"
            else
                echo "https://julialang.julialang.org/bin/linux/armv7l/${MAJMIN}/julia-${VERSION}-linux-armv7l.tar.gz"
            fi
        elif [[ "$ARCH" == "aarch64" ]]; then
            if [[ "${VERSION}" == "master" ]]; then
                echo "https://julialangnightlies-s3.julialang.org/bin/linux/x86/julia-latest-linuxaarch64.tar.gz"
            else
                echo "https://julialang-s3.julialang.org/bin/linux/aarch64/${MAJMIN}/julia-${VERSION}-linux-aarch64.tar.gz"
            fi
        else
            echo "Architecture $ARCH unsupported on $OS" >&2
            exit 1
        fi
    elif [[ "$OS" == "Darwin" ]]; then
        if [[ "$ARCH" == "x86_64" ]]; then
            if [[ "${VERSION}" == "master" ]]; then
                echo "https://julialangnightlies-s3.julialang.org/bin/mac/x64/julia-latest-mac64.dmg"
            else
                echo "https://julialang-s3.julialang.org/bin/mac/x64/${MAJMIN}/julia-${VERSION}-mac64.dmg"
            fi
        else
            echo "Architecture $ARCH unsupported on $OS" >&2
            exit 1
        fi
    elif [[ "$OS" == "FreeBSD" ]]; then
        if [[ "$ARCH" == "amd64" ]]; then
            if [[ "${VERSION}" == "master" ]]; then
                echo "https://julialangnightlies-s3.julialang.org/bin/freebsd/x64/julia-latest-freebsd64.tar.gz"
            else
                echo "https://julialang-s3.julialang.org/bin/freebsd/x64/${MAJMIN}/julia-${VERSION}-freebsd-x86_64.tar.gz"
            fi
        else
            echo "Architecture $ARCH unsupported on $OS" >&2
            exit 1
        fi
    else
        echo "Platform $OS unsupported"
        exit 1
    fi
}

FORCE=no
ARGS=()
while [[ $# -gt 0 ]]; do
    case "$1" in
        --force)
            FORCE=yes
            shift
            ;;
        *)
            ARGS+=("$1")
            shift
            ;;
    esac
done

VERSION=${ARGS[0]:-1.5.3}
JULIA_URL=$(get_julia_url ${VERSION})
DESTDIR=~/dist/${ARCH}/julia-${VERSION}

if [[ -d ${DESTDIR} ]]; then
    if [[ "${FORCE}" == "yes" ]]; then
        rm -rf ${DESTDIR}
    else
        echo "${DESTDIR} already exists" >&2
        exit 0
    fi
fi
mkdir -p ${DESTDIR}
echo "Downloading ${JULIA_URL}"
if [[ "$OS" == "Linux" ]] || [[ "$OS" == "FreeBSD" ]]; then
    # Download, unpack Julia version into the destination directory
    curl -# -L "$JULIA_URL" | tar -C $DESTDIR --strip-components=1 -f- -zxv
elif [[ "$OS" == "Darwin" ]]; then
    # Download, unpack Julia version into the destination directory
    curl -L "$JULIA_URL" -o ${DESTDIR}/julia-installer.dmg
    hdiutil mount ${DESTDIR}/julia-installer.dmg
    cp -Ra /Volumes/Julia-*/Julia-*.app/Contents/Resources/julia/* ${DESTDIR}
    for j in /Volumes/Julia-*; do
        hdiutil detach "$j"
    done
    rm -f ${DESTDIR}/julia-installer.dmg
else
    echo "Platform $OS unsupported"
    exit 1
fi

# Link julia into our local bin directory
mkdir -p ~/local/bin

LN_FORCE_FLAG=""
if [[ "${FORCE}" == "yes" ]]; then
    LN_FORCE_FLAG="-f"
fi
if [[ "${VERSION}" != "master" ]]; then
    ln -sf ${DESTDIR}/bin/julia ~/local/bin/julia-${VERSION}
    ln -s ${LN_FORCE_FLAG} ${DESTDIR}/bin/julia ~/local/bin/julia-${VERSION%.*}
    ln -s ${LN_FORCE_FLAG} ${DESTDIR}/bin/julia ~/local/bin/
else
    ln -sf ${DESTDIR}/bin/julia ~/local/bin/julia-master
fi