$version=“0.28.0”

$fzf_base=Split-Path -Parent $MyInvocation.MyCommand.Definition

function check_binary () {

Write-Host "  - Checking fzf executable ... " -NoNewline
$output=cmd /c $fzf_base\bin\fzf.exe --version 2>&1
if (-not $?) {
  Write-Host "Error: $output"
  $binary_error="Invalid binary"
} else {
  $output=(-Split $output)[0]
  if ($version -ne $output) {
    Write-Host "$output != $version"
    $binary_error="Invalid version"
  } else {
    Write-Host "$output"
    $binary_error=""
    return 1
  }
}
Remove-Item "$fzf_base\bin\fzf.exe"
return 0

}

function download {

param($file)
Write-Host "Downloading bin/fzf ..."
if (Test-Path "$fzf_base\bin\fzf.exe") {
  Write-Host "  - Already exists"
  if (check_binary) {
    return
  }
}
if (-not (Test-Path "$fzf_base\bin")) {
  md "$fzf_base\bin"
}
if (-not $?) {
  $binary_error="Failed to create bin directory"
  return
}
cd "$fzf_base\bin"
$url="https://github.com/junegunn/fzf/releases/download/$version/$file"
$temp=$env:TMP + "\fzf.zip"
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
if ($PSVersionTable.PSVersion.Major -ge 3) {
  Invoke-WebRequest -Uri $url -OutFile $temp
} else {
  (New-Object Net.WebClient).DownloadFile($url, $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath("$temp"))
}
if ($?) {
  (Microsoft.PowerShell.Archive\Expand-Archive -Path $temp -DestinationPath .); (Remove-Item $temp)
} else {
  $binary_error="Failed to download with powershell"
}
if (-not (Test-Path fzf.exe)) {
  $binary_error="Failed to download $file"
  return
}
echo y | icacls $fzf_base\bin\fzf.exe /grant Administrator:F ; check_binary >$null

}

download “fzf-$version-windows_amd64.zip”

Write-Host ‘For more information, see: github.com/junegunn/fzf