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- # Sample script to install Miniconda under Windows
- # Authors: Olivier Grisel, Jonathan Helmus and Kyle Kastner, Robert McGibbon
- # License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
- $MINICONDA_URL = "http://repo.continuum.io/miniconda/"
- function DownloadMiniconda ($python_version, $platform_suffix) {
- $webclient = New-Object System.Net.WebClient
- if ($python_version -match "3.4") {
- $filename = "Miniconda3-latest-Windows-" + $platform_suffix + ".exe"
- } else {
- $filename = "Miniconda-latest-Windows-" + $platform_suffix + ".exe"
- }
- $url = $MINICONDA_URL + $filename
- $basedir = $pwd.Path + "\"
- $filepath = $basedir + $filename
- if (Test-Path $filename) {
- Write-Host "Reusing" $filepath
- return $filepath
- }
- # Download and retry up to 3 times in case of network transient errors.
- Write-Host "Downloading" $filename "from" $url
- $retry_attempts = 2
- for($i=0; $i -lt $retry_attempts; $i++){
- try {
- $webclient.DownloadFile($url, $filepath)
- break
- }
- Catch [Exception]{
- Start-Sleep 1
- }
- }
- if (Test-Path $filepath) {
- Write-Host "File saved at" $filepath
- } else {
- # Retry once to get the error message if any at the last try
- $webclient.DownloadFile($url, $filepath)
- }
- return $filepath
- }
- function InstallMiniconda ($python_version, $architecture, $python_home) {
- Write-Host "Installing Python" $python_version "for" $architecture "bit architecture to" $python_home
- if (Test-Path $python_home) {
- Write-Host $python_home "already exists, skipping."
- return $false
- }
- if ($architecture -match "32") {
- $platform_suffix = "x86"
- } else {
- $platform_suffix = "x86_64"
- }
- $filepath = DownloadMiniconda $python_version $platform_suffix
- Write-Host "Installing" $filepath "to" $python_home
- $install_log = $python_home + ".log"
- $args = "/S /D=$python_home"
- Write-Host $filepath $args
- Start-Process -FilePath $filepath -ArgumentList $args -Wait -Passthru
- if (Test-Path $python_home) {
- Write-Host "Python $python_version ($architecture) installation complete"
- } else {
- Write-Host "Failed to install Python in $python_home"
- Get-Content -Path $install_log
- Exit 1
- }
- }
- function InstallCondaPackages ($python_home, $spec) {
- $conda_path = $python_home + "\Scripts\conda.exe"
- $args = "install --yes " + $spec
- Write-Host ("conda " + $args)
- Start-Process -FilePath "$conda_path" -ArgumentList $args -Wait -Passthru
- }
- function UpdateConda ($python_home) {
- $conda_path = $python_home + "\Scripts\conda.exe"
- Write-Host "Updating conda..."
- $args = "update --yes conda"
- Write-Host $conda_path $args
- Start-Process -FilePath "$conda_path" -ArgumentList $args -Wait -Passthru
- }
- function main () {
- InstallMiniconda $env:PYTHON_VERSION $env:PYTHON_ARCH $env:PYTHON
- UpdateConda $env:PYTHON
- InstallCondaPackages $env:PYTHON "conda-build=1.4.0 pip jinja2 binstar"
- }
- main
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