Received: from out0.migadu.com (out0.migadu.com [94.23.1.103])
	by mail-b.sr.ht (Postfix) with ESMTPS id 6B086FF0F0
	for <~sircmpwn/chartsrv-devel@lists.sr.ht>; Thu, 24 Sep 2020 18:27:09 +0000 (UTC)
Authentication-Results: mail-b.sr.ht;
	dkim=fail reason="key not found in DNS" (0-bit key) header.d=pixelhero.dev header.i=@pixelhero.dev header.b=mWjTe9Qu
X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers.
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pixelhero.dev;
	s=key1; t=1600972028;
	h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
	 to:to:cc:cc:mime-version:mime-version:
	 content-transfer-encoding:content-transfer-encoding;
	bh=7RhEk4GgEVElIOd+3ka9HCXE6SyPu36K3zz8HNc3Y74=;
	b=mWjTe9Quj1mYiawNDDBm0Z5ceUVnosKuE1esDQLGEmIGMV1zrcUOVu1HvEQqd3bxG0fceQ
	kPSYAGOC9rE2/T73UOOtvbr0xnFElUaUQiUZiyxEw6jnVESRByAp95Vf4Pw9rxq2CrxmmB
	WcXDGmABVUqXFc/iU69f55fKBTNz+fGUO9TKOmTA4TFxXm16kOR2u01oFcCLNSQ7Xv6hAr
	DnptzUiSMj1ZhGRqGzB+2gOlqclr4zQZxSYODhhieiZJlTCRGf20jalXiu+zJTKhNw6UWQ
	h9DCSbzYHSP6BDl+GCfstepPOkbDuwJTD1yKuuNHcyhrj/TFnLU1bPq0oba9mA==
From: Noam Preil <noam@pixelhero.dev>
To: ~sircmpwn/chartsrv-devel@lists.sr.ht
Cc: Noam Preil <noam@pixelhero.dev>
Subject: [PATCH] Error out instead of crashing when server isn't specified
Date: Thu, 24 Sep 2020 14:23:43 -0400
Message-Id: <20200924182343.9291-1-noam@pixelhero.dev>
MIME-Version: 1.0
X-Spam-Score: 0.00
Content-Transfer-Encoding: quoted-printable

---
 main.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/main.go b/main.go
index e15d079..887ae50 100644
--- a/main.go
+++ b/main.go
@@ -128,6 +128,10 @@ func metricName(metric map[string]string) string {
 func main() {
 	plotutil.DefaultDashes =3D [][]vg.Length{{}}
=20
+	if len(os.Args) < 2 {
+		fmt.Printf("Usage: %s server\n", os.Args[0])
+		os.Exit(1)
+	}
 	upstream =3D os.Args[1]
 	router :=3D chi.NewRouter()
 	router.Use(middleware.RealIP)
--=20
2.28.0