From 5f3276c7e66fe54b0485da2def84a6ae322cce59 Mon Sep 17 00:00:00 2001
From: Christopher Bargren <cbargren@gmail.com>
Date: Tue, 7 Feb 2017 16:33:28 -0700
Subject: [PATCH] Add support for lowercase proxy environment variables

curl supports HTTPS_PROXY in addition to https_proxy (and their http counterparts). This change ensures parity with curl's behavior.
---
 src/remote.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/remote.c b/src/remote.c
index 8da7346fb..1f5c58bd2 100644
--- a/src/remote.c
+++ b/src/remote.c
@@ -773,6 +773,18 @@ int git_remote__get_http_proxy(git_remote *remote, bool use_ssl, char **proxy_ur
 	/* HTTP_PROXY / HTTPS_PROXY environment variables */
 	error = git__getenv(&val, use_ssl ? "HTTPS_PROXY" : "HTTP_PROXY");
 
+	if (error < 0) {
+		if (error != GIT_ENOTFOUND) {
+			return error;
+		}
+
+		giterr_clear();
+		error = 0;
+	}
+
+	/* try lowercase environment variables */
+	error = git__getenv(&val, use_ssl ? "https_proxy" : "http_proxy");
+
 	if (error < 0) {
 		if (error == GIT_ENOTFOUND) {
 			giterr_clear();