Sunday, November 18, 2012

Downloading files in powershell

I used to download files in batch files using  wget or curl. Now that I have "the powershell" I can do better, by instantiating a WebClient object.   Here's my example dependency downloader for my coffee script unit tests.





$filesToDownload = (
"http://jashkenas.github.com/coffee-script/extras/coffee-script.js",
"https://raw.github.com/jquery/qunit/master/qunit/qunit.js",
"https://raw.github.com/jquery/qunit/master/qunit/qunit.css"
)
$webClient = new-object System.Net.WebClient

$filesToDownload | % {
$uri = new-Object System.Uri $_ ;
$localPath = "$($pwd.Path)\$($uri.Segments[-1])";
Write-Host "Writing $localPath" ;
$webClient.DownloadFile($uri,$localPath);
}

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