Install clojure on Debian stretch (9)

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Blog 2019/2/10

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install-clojure-stretch.sh

A little script to install Clojure 1.10 on Debian 9 ("stretch").

I made a similar script for Debian 8 ("jessie"): https://gist.github.com/cellularmitosis/0758569f0f1427f7b309c8145359ab35

install-clojure-stretch.sh

#!/bin/bash

set -e -o pipefail
set -x

# remove any debian version of clojure
if dpkg -l | grep '^ii' | awk '{print $2}' | grep clojure >/dev/null; then
    apt-get -y remove '.*clojure.*'
fi

# install java 8
if ! dpkg -l | grep 8-jdk >/dev/null ; then
    apt-get -y install openjdk-8-jdk
fi

# make java 8 the default
if ! java -version 2>&1 | head -n1 | grep '1\.8' >/dev/null; then
    update-java-alternatives -s $( update-java-alternatives -l | awk '{print $1}' | grep '1\.8' ) 
fi

# install clojure
install="no"
if ! which clojure >/dev/null; then
    install="yes"
elif ! cat `which clojure` | grep '1\.10' >/dev/null; then
    install="yes"
fi
if [ "$install" = "yes" ]; then
    apt-get -y install curl rlwrap
    cd /tmp
    curl -O https://download.clojure.org/install/linux-install-1.10.0.411.sh
    chmod +x linux-install-1.10.0.411.sh
    ./linux-install-1.10.0.411.sh
fi