Add Julia 1.3.1

images/linux/scripts/installers/julia.sh

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+#!/bin/bash
+################################################################################
+##  File:  julia.sh
+##  Desc:  Installs Julia, and adds Julia to the path
+################################################################################
+
+# Source the helpers for use with the script
+source $HELPER_SCRIPTS/document.sh
+
+# This function installs Julia using the specified arguments:
+#   $1=MajorVersion (1.3)
+#   $2=MajorAndMinorVersion (1.3.1)
+#   $3=IsDefaultVersion (true or false)
+
+function InstallJulia () {
+    curl -sL "https://julialang-s3.julialang.org/bin/linux/x64/$1/julia-$2-linux-x86_64.tar.gz" -o "julia-$2-linux-x86_64.tar.gz"
+    mkdir -p "/usr/local/julia$1"
+    tar -C "/usr/local/julia$1" -xzf "julia-$2-linux-x86_64.tar.gz" --strip-components=1 julia
+    rm "julia-$2-linux-x86_64.tar.gz"
+
+    # If this version of Julia is to be the default version,
+    # symlink it into the path
+    if [ "$3" = true ]; then
+        ln -s "/usr/local/julia$1/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 [ "$3" = true ]; then
+        if ! command -v julia; then
+            echo "Julia was not installed or found on PATH"
+            exit 1
+        fi
+    fi
+
+    # Verify output of julia --version
+    if [ ! "$(/usr/local/julia"$1"/bin/julia --version)" = "julia version $2" ]; then
+        echo "Julia was not installed correctly"
+        exit 1
+    fi
+
+    # Document what was added to the image
+    echo "Lastly, documenting what we added to the metadata file"
+    DocumentInstalledItem "Julia ($(julia --version))"
+}
+
+InstallJulia 1.3 1.3.1 true

images/win/scripts/Installers/Install-Julia.ps1

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+################################################################################
+##  File:  Install-Julia.ps1
+##  Desc:  Install Julia
+################################################################################
+
+Import-Module -Name ImageHelpers -Force
+function Install-JuliaVersion
+{
+    Param
+    (
+        [String]$juliaVersion,
+        [Switch]$addToDefaultPath
+    )
+
+    # Split versions.
+    $juliaMajorVersion = $juliaVersion.split(".")[0] + "." + $juliaVersion.split(".")[1]
+
+    # Download the Julia installer.
+    Write-Host "Downloading Julia $juliaVersion..."
+    $ProgressPreference = 'SilentlyContinue'
+    Invoke-WebRequest -UseBasicParsing -Uri "https://julialang-s3.julialang.org/bin/winnt/x64/$juliaMajorVersion/julia-$juliaVersion-win64.exe" -OutFile "julia-$juliaVersion-win64.exe"
+
+    # Install Julia.
+    # The installer will change in Julia 1.4. For future-proofing, a version check is run.
+    if ( $juliaMajorVersion -ge "1.4")
+    {
+        Start-Process -FilePath "julia-$juliaVersion-win64.exe" -ArgumentList "/SILENT /dir=C:\Julia" -NoNewWindow -Wait
+    }
+    else
+    {
+        Start-Process -FilePath "julia-$juliaVersion-win64.exe" -ArgumentList "/S /D=C:\Julia" -NoNewWindow -Wait
+    }
+
+    # Delete unnecessary files to conserve space.
+    Write-Host "Deleting downloaded installer..."
+    Remove-Item "julia-$juliaVersion-win64.exe"
+
+    # Make this the default version of Julia?
+    if ($addToDefaultPath)
+    {
+        Write-Host "Adding Julia $juliaVersion to the path..."
+        # Add the Julia binaries to the path.
+        Add-MachinePathItem "C:\Julia\Julia-$juliaVersion\bin" | Out-Null
+    }
+
+    # Done
+    Write-Host "Done installing Julia $juliaVersion."
+    return "C:\Julia\Julia-$juliaVersion"
+}
+
+# Install Julia
+$juliaVersionsToInstall = $env:JULIA_VERSIONS.split(",")
+
+foreach($julia in $juliaVersionsToInstall) {
+    Write-Host "Installing Julia ${julia}"
+    if($julia -eq $env:JULIA_DEFAULT) {
+        $installDirectory = Install-JuliaVersion -juliaVersion $julia -addToDefaultPath
+    } else {
+        $installDirectory = Install-JuliaVersion -juliaVersion $julia
+    }
+    setx $envName "$installDirectory" /M
+}

images/win/scripts/Installers/Validate-Julia.ps1

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+################################################################################
+##  File:  Validate-Julia.ps1
+##  Desc:  Validate Julia
+################################################################################
+
+# Verify that julia.exe is on the path
+if(Get-Command -Name 'julia')
+{
+    Write-Host "$(julia --version) is on the path."
+}
+else
+{
+    Write-Host "Julia is not on the path."
+    exit 1
+}
+
+# Add details of available versions in Markdown
+$tmplMark = @"
+#### {0}
+
+_Environment:_
+* {1}: root directory of the Julia {0} installation
+
+"@
+
+$tmplMarkRoot = @"
+#### {0}
+
+_Environment:_
+* PATH: contains the location of julia.exe version {0}
+* {1}: root directory of the Julia {0} installation
+"@
+
+$SoftwareName = "Julia (x64)"
+$Description = New-Object System.Text.StringBuilder
+$juliaVersionsToInstall = $env:JULIA_VERSIONS.split(",")
+
+foreach($julia in $juliaVersionsToInstall) {
+    $juliaVersion = Get-JuliaVersion
+    if ($juliaVersion -eq $julia) {
+        if($julia -eq $env:JULIA_DEFAULT) {
+            $null = $Description.AppendLine(($tmplMarkRoot -f $juliaVersion))
+        } else {
+            $null = $Description.AppendLine(($tmplMark -f $juliaVersion))
+        }
+    }
+}
+
+Add-SoftwareDetailsToMarkdown -SoftwareName $SoftwareName -DescriptionMarkdown $Description.ToString()