From 9074aa4c937c2618136e703703118cbda88030bf Mon Sep 17 00:00:00 2001
From: Tal Auslander <tal@cloudshare.com>
Date: Mon, 8 Jun 2015 14:45:20 +0300
Subject: [PATCH] win_get_url re-download file only if modified
---
windows/win_get_url.ps1 | 38 +++++++++++++++++++++++++++++++-------
1 file changed, 31 insertions(+), 7 deletions(-)
diff --git a/windows/win_get_url.ps1 b/windows/win_get_url.ps1
index b555cc7a52c..96189d69113 100644
--- a/windows/win_get_url.ps1
+++ b/windows/win_get_url.ps1
@@ -1,7 +1,7 @@
#!powershell
# This file is part of Ansible.
#
-# Copyright 2014, Paul Durivage <paul.durivage@rackspace.com>
+# (c)) 2015, Paul Durivage <paul.durivage@rackspace.com>, Tal Auslander <tal@cloudshare.com>
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -40,14 +40,38 @@ Else {
Fail-Json $result "missing required argument: dest"
}
-$client = New-Object System.Net.WebClient
+If (-not (Test-Path $dest)) {
+ $client = New-Object System.Net.WebClient
-Try {
- $client.DownloadFile($url, $dest)
- $result.changed = $true
+ Try {
+ $client.DownloadFile($url, $dest)
+ $result.changed = $true
+ }
+ Catch {
+ Fail-Json $result "Error downloading $url to $dest"
+ }
}
-Catch {
- Fail-Json $result "Error downloading $url to $dest"
+Else {
+ Try {
+ $webRequest = [System.Net.HttpWebRequest]::Create($url)
+ $webRequest.IfModifiedSince = ([System.IO.FileInfo]$dest).LastWriteTime
+ $webRequest.Method = "GET"
+ [System.Net.HttpWebResponse]$webResponse = $webRequest.GetResponse()
+
+ $stream = New-Object System.IO.StreamReader($response.GetResponseStream())
+
+ $stream.ReadToEnd() | Set-Content -Path $dest -Force
+
+ $result.changed = $true
+ }
+ Catch [System.Net.WebException] {
+ If ($_.Exception.Response.StatusCode -ne [System.Net.HttpStatusCode]::NotModified) {
+ Fail-Json $result "Error downloading $url to $dest"
+ }
+ }
+ Catch {
+ Fail-Json $result "Error downloading $url to $dest"
+ }
}
Set-Attr $result.win_get_url "url" $url