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runner-images/images/linux/scripts/installers/julia.sh
2020-10-12 15:47:09 +05:00

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#!/bin/bash -e
################################################################################
## File: julia.sh
## Desc: Installs Julia, and adds Julia to the path
################################################################################
# This function fetches the latest Julia release from the GitHub API
# Based on https://gist.github.com/lukechilds/a83e1d7127b78fef38c2914c4ececc3c
function GetLatestJuliaRelease () {
curl --silent "https://api.github.com/repos/julialang/julia/releases/latest" |
grep '"tag_name":' |
sed -E 's/.*"([^"]+)".*/\1/' |
sed 's/v//' # remove v prefix
}
# This function installs Julia using the specified arguments:
# $1=MajorAndMinorVersion (1.3.1)
# $2=IsDefaultVersion (true or false)
function InstallJulia () {
# Extract Major and Minor version from full version string
juliaMajorAndMinorVersion="$(cut -d. -f1,2 <<< $1)"
juliaInstallationPath="/usr/local/julia$1"
curl -sL "https://julialang-s3.julialang.org/bin/linux/x64/$juliaMajorAndMinorVersion/julia-$1-linux-x86_64.tar.gz" -o "julia-$1-linux-x86_64.tar.gz"
mkdir -p "$juliaInstallationPath"
tar -C "$juliaInstallationPath" -xzf "julia-$1-linux-x86_64.tar.gz" --strip-components=1
rm "julia-$1-linux-x86_64.tar.gz"
# If this version of Julia is to be the default version,
# symlink it into the path
if [ "$2" = true ]; then
ln -s "$juliaInstallationPath/bin/julia" /usr/bin/julia
fi
# Run tests to determine that the software installed as expected
echo "Testing to make sure that script performed as expected, and basic scenarios work"
# If this version of Julia is to be the default version,
# check that it has been added to PATH
if [ "$2" = true ]; then
if ! command -v julia; then
echo "Julia was not installed or found on PATH"
exit 1
fi
fi
# Verify output of julia --version
if [ ! "$($juliaInstallationPath/bin/julia --version)" = "julia version $1" ]; then
echo "Julia was not installed correctly"
exit 1
fi
}
InstallJulia "$(GetLatestJuliaRelease)" true