From d287b62b6432ce3155e963c6471edf79ec70439a Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 11 Jul 2012 18:05:30 -0400
Subject: [PATCH] Set the User-Agent header to "Nix/<version>"

---
 perl/lib/Nix/Config.pm.in                | 2 ++
 scripts/download-from-binary-cache.pl.in | 1 +
 2 files changed, 3 insertions(+)

diff --git a/perl/lib/Nix/Config.pm.in b/perl/lib/Nix/Config.pm.in
index 57751b6b4..ed197821e 100644
--- a/perl/lib/Nix/Config.pm.in
+++ b/perl/lib/Nix/Config.pm.in
@@ -1,5 +1,7 @@
 package Nix::Config;
 
+$version = "@version@";
+
 $binDir = $ENV{"NIX_BIN_DIR"} || "@bindir@";
 $libexecDir = $ENV{"NIX_LIBEXEC_DIR"} || "@libexecdir@";
 $stateDir = $ENV{"NIX_STATE_DIR"} || "@localstatedir@/nix";
diff --git a/scripts/download-from-binary-cache.pl.in b/scripts/download-from-binary-cache.pl.in
index 93155e0b5..ca3ff807b 100644
--- a/scripts/download-from-binary-cache.pl.in
+++ b/scripts/download-from-binary-cache.pl.in
@@ -41,6 +41,7 @@ sub addRequest {
     $curl->setopt(CURLOPT_WRITEDATA, \$requests{$curlId}->{content});
     $curl->setopt(CURLOPT_FOLLOWLOCATION, 1);
     $curl->setopt(CURLOPT_CAINFO, $caBundle) if defined $caBundle;
+    $curl->setopt(CURLOPT_USERAGENT, "Nix/$Nix::Config::version");
     $curl->setopt(CURLOPT_NOBODY, 1) if $head;
 
     if ($activeRequests >= $maxParallelRequests) {