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+ # Sample script to install Miniconda under Windows
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+ # Authors: Olivier Grisel, Jonathan Helmus and Kyle Kastner, Robert McGibbon
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+ # License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
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+
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+ $MINICONDA_URL = " http://repo.continuum.io/miniconda/"
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+
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+
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+ function DownloadMiniconda ($python_version , $platform_suffix ) {
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+ $webclient = New-Object System.Net.WebClient
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+ if ($python_version -match " 3.4" ) {
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+ $filename = " Miniconda3-3.5.5-Windows-" + $platform_suffix + " .exe"
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+ } else {
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+ $filename = " Miniconda-3.5.5-Windows-" + $platform_suffix + " .exe"
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+ }
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+ $url = $MINICONDA_URL + $filename
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+
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+ $basedir = $pwd.Path + " \"
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+ $filepath = $basedir + $filename
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+ if (Test-Path $filename ) {
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+ Write-Host " Reusing" $filepath
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+ return $filepath
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+ }
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+
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+ # Download and retry up to 3 times in case of network transient errors.
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+ Write-Host " Downloading" $filename " from" $url
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+ $retry_attempts = 2
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+ for ($i = 0 ; $i -lt $retry_attempts ; $i ++ ){
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+ try {
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+ $webclient.DownloadFile ($url , $filepath )
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+ break
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+ }
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+ Catch [Exception ]{
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+ Start-Sleep 1
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+ }
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+ }
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+ if (Test-Path $filepath ) {
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+ Write-Host " File saved at" $filepath
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+ } else {
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+ # Retry once to get the error message if any at the last try
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+ $webclient.DownloadFile ($url , $filepath )
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+ }
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+ return $filepath
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+ }
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+
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+ function Start-Executable {
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+ param (
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+ [String ] $FilePath ,
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+ [String []] $ArgumentList
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+ )
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+ $OFS = " "
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+ $process = New-Object System.Diagnostics.Process
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+ $process.StartInfo.FileName = $FilePath
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+ $process.StartInfo.Arguments = $ArgumentList
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+ $process.StartInfo.UseShellExecute = $false
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+ $process.StartInfo.RedirectStandardOutput = $true
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+ if ( $process.Start () ) {
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+ $output = $process.StandardOutput.ReadToEnd () `
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+ -replace " \r\n$" , " "
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+ if ( $output ) {
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+ if ( $output.Contains (" `r`n " ) ) {
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+ $output -split " `r`n "
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+ }
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+ elseif ( $output.Contains (" `n " ) ) {
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+ $output -split " `n "
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+ }
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+ else {
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+ $output
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+ }
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+ }
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+ $process.WaitForExit ()
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+ & " $Env: SystemRoot \system32\cmd.exe" `
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+ / c exit $process.ExitCode
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+ }
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+ }
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+
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+ function InstallMiniconda ($python_version , $architecture , $python_home ) {
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+ Write-Host " Installing Python" $python_version " for" $architecture " bit architecture to" $python_home
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+ if (Test-Path $python_home ) {
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+ Write-Host $python_home " already exists, skipping."
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+ return $false
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+ }
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+ if ($architecture -match " 32" ) {
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+ $platform_suffix = " x86"
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+ } else {
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+ $platform_suffix = " x86_64"
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+ }
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+
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+ $filepath = DownloadMiniconda $python_version $platform_suffix
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+ Write-Host " Installing" $filepath " to" $python_home
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+ $install_log = $python_home + " .log"
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+ $args = " /S /D=$python_home "
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+ Write-Host $filepath $args
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+ Start-Process - FilePath $filepath - ArgumentList $args - Wait
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+ if (Test-Path $python_home ) {
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+ Write-Host " Python $python_version ($architecture ) installation complete"
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+ } else {
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+ Write-Host " Failed to install Python in $python_home "
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+ Get-Content - Path $install_log
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+ Exit 1
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+ }
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+ }
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+
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+
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+ function InstallCondaPackages ($python_home , $spec ) {
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+ $conda_path = $python_home + " \Scripts\conda.exe"
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+ $args = " install --yes --quiet " + $spec
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+ Write-Host (" conda " + $args )
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+ Start-Executable - FilePath " $conda_path " - ArgumentList $args
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+ }
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+ function InstallCondaPackagesFromFile ($python_home , $ver , $arch ) {
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+ $conda_path = $python_home + " \Scripts\conda.exe"
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+ $args = " install --yes --quiet --file C:\projects\pandas\ci\requirements-" + $ver + " _" + $arch + " .txt"
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+ Write-Host (" conda " + $args )
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+ Start-Executable - FilePath " $conda_path " - ArgumentList $args
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+ }
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+
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+ function UpdateConda ($python_home ) {
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+ $conda_path = $python_home + " \Scripts\conda.exe"
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+ Write-Host " Updating conda..."
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+ $args = " update --yes conda"
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+ Write-Host $conda_path $args
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+ Start-Process - FilePath " $conda_path " - ArgumentList $args - Wait
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+ }
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+
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+
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+ function main () {
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+ InstallMiniconda $env: PYTHON_VERSION $env: PYTHON_ARCH $env: PYTHON
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+ UpdateConda $env: PYTHON
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+ InstallCondaPackages $env: PYTHON " pip setuptools nose"
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+ InstallCondaPackagesFromFile $env: PYTHON $env: PYTHON_VERSION $env: PYTHON_ARCH
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+ }
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+
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+ main
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