kc3-lang/brotli/scripts/install_py.ps1

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• Hash : 6ece1d87
  Author :
  Date : 2017-04-23T14:07:08
  

  Move files & update paths (#541)
  
  * Move files & update paths
  
  * Rename build to scripts.
  
  * Fix paths
  
  * Fix script.
  

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• scripts/install_py.ps1

• # Sample script to install Python and pip under Windows
  # Authors: Olivier Grisel, Jonathan Helmus, Kyle Kastner, and Alex Willmer
  # License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
  # Source: https://github.com/ogrisel/python-appveyor-demo/blob/master/appveyor/install.ps1
  
  $BASE_URL = "https://www.python.org/ftp/python/"
  $GET_PIP_URL = "https://bootstrap.pypa.io/get-pip.py"
  $GET_PIP_PATH = "C:\get-pip.py"
  
  $PYTHON_PRERELEASE_REGEX = @"
  (?x)
  (?<major>\d+)
  \.
  (?<minor>\d+)
  \.
  (?<micro>\d+)
  (?<prerelease>[a-z]{1,2}\d+)
  "@
  
  
  function Download ($filename, $url) {
      $webclient = New-Object System.Net.WebClient
  
      $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 ParsePythonVersion ($python_version) {
      if ($python_version -match $PYTHON_PRERELEASE_REGEX) {
          return ([int]$matches.major, [int]$matches.minor, [int]$matches.micro,
                  $matches.prerelease)
      }
      $version_obj = [version]$python_version
      return ($version_obj.major, $version_obj.minor, $version_obj.build, "")
  }
  
  
  function DownloadPython ($python_version, $platform_suffix) {
      $major, $minor, $micro, $prerelease = ParsePythonVersion $python_version
  
      if (($major -le 2 -and $micro -eq 0) `
          -or ($major -eq 3 -and $minor -le 2 -and $micro -eq 0) `
          ) {
          $dir = "$major.$minor"
          $python_version = "$major.$minor$prerelease"
      } else {
          $dir = "$major.$minor.$micro"
      }
  
      if ($prerelease) {
          if (($major -le 2) `
              -or ($major -eq 3 -and $minor -eq 1) `
              -or ($major -eq 3 -and $minor -eq 2) `
              -or ($major -eq 3 -and $minor -eq 3) `
              ) {
              $dir = "$dir/prev"
          }
      }
  
      if (($major -le 2) -or ($major -le 3 -and $minor -le 4)) {
          $ext = "msi"
          if ($platform_suffix) {
              $platform_suffix = ".$platform_suffix"
          }
      } else {
          $ext = "exe"
          if ($platform_suffix) {
              $platform_suffix = "-$platform_suffix"
          }
      }
  
      $filename = "python-$python_version$platform_suffix.$ext"
      $url = "$BASE_URL$dir/$filename"
      $filepath = Download $filename $url
      return $filepath
  }
  
  
  function InstallPython ($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 -eq "32") {
          $platform_suffix = ""
      } else {
          $platform_suffix = "amd64"
      }
      $installer_path = DownloadPython $python_version $platform_suffix
      $installer_ext = [System.IO.Path]::GetExtension($installer_path)
      Write-Host "Installing $installer_path to $python_home"
      $install_log = $python_home + ".log"
      if ($installer_ext -eq '.msi') {
          InstallPythonMSI $installer_path $python_home $install_log
      } else {
          InstallPythonEXE $installer_path $python_home $install_log
      }
      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 InstallPythonEXE ($exepath, $python_home, $install_log) {
      $install_args = "/quiet InstallAllUsers=1 TargetDir=$python_home"
      RunCommand $exepath $install_args
  }
  
  
  function InstallPythonMSI ($msipath, $python_home, $install_log) {
      $install_args = "/qn /log $install_log /i $msipath TARGETDIR=$python_home"
      $uninstall_args = "/qn /x $msipath"
      RunCommand "msiexec.exe" $install_args
      if (-not(Test-Path $python_home)) {
          Write-Host "Python seems to be installed else-where, reinstalling."
          RunCommand "msiexec.exe" $uninstall_args
          RunCommand "msiexec.exe" $install_args
      }
  }
  
  function RunCommand ($command, $command_args) {
      Write-Host $command $command_args
      Start-Process -FilePath $command -ArgumentList $command_args -Wait -Passthru
  }
  
  
  function InstallPip ($python_home) {
      $pip_path = $python_home + "\Scripts\pip.exe"
      $python_path = $python_home + "\python.exe"
      if (-not(Test-Path $pip_path)) {
          Write-Host "Installing pip..."
          $webclient = New-Object System.Net.WebClient
          $webclient.DownloadFile($GET_PIP_URL, $GET_PIP_PATH)
          Write-Host "Executing:" $python_path $GET_PIP_PATH
          & $python_path $GET_PIP_PATH
      } else {
          Write-Host "pip already installed."
      }
  }
  
  
  function main () {
      InstallPython $env:PYTHON_VERSION $env:PYTHON_ARCH $env:PYTHON
      InstallPip $env:PYTHON
  }
  
  main

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