From dac1ada52bf5588d7b2b9088d285dd0f9fab6a60 Mon Sep 17 00:00:00 2001
From: Pranav Motarwar <pranavmotarwar@Mac.attlocal.net>
Date: Sun, 18 Jan 2026 15:16:40 -0800
Subject: [PATCH] Add helper to detect empty configuration

---
 config/util.go      |  8 ++++++++
 config/util_test.go | 21 +++++++++++++++++++++
 go.sum              |  8 ++++----
 3 files changed, 33 insertions(+), 4 deletions(-)
 create mode 100644 config/util.go
 create mode 100644 config/util_test.go

diff --git a/config/util.go b/config/util.go
new file mode 100644
index 0000000..826b458
--- /dev/null
+++ b/config/util.go
@@ -0,0 +1,8 @@
+package config
+
+// IsZero reports whether the provided configuration struct is empty.
+// This can be used to detect missing or unset configuration.
+func IsZero[T comparable](cfg T) bool {
+	var zero T
+	return cfg == zero
+}
diff --git a/config/util_test.go b/config/util_test.go
new file mode 100644
index 0000000..d61e7cf
--- /dev/null
+++ b/config/util_test.go
@@ -0,0 +1,21 @@
+package config
+
+import "testing"
+
+type testConfig struct {
+	Name string
+	Port int
+}
+
+func TestIsZero(t *testing.T) {
+	var empty testConfig
+	nonEmpty := testConfig{Name: "chaos", Port: 8080}
+
+	if !IsZero(empty) {
+		t.Fatalf("expected empty config to be zero")
+	}
+
+	if IsZero(nonEmpty) {
+		t.Fatalf("expected non-empty config to not be zero")
+	}
+}
diff --git a/go.sum b/go.sum
index 652568f..ff26a57 100644
--- a/go.sum
+++ b/go.sum
@@ -59,10 +59,10 @@ github.com/ziutek/mymysql v1.5.4 h1:GB0qdRGsTwQSBVYuVShFBKaXSnSnYYC2d9knnE1LHFs=
 github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
 golang.org/x/crypto v0.0.0-20160922170629-8e06e8ddd962 h1:mWFWs/KZ0R2cLgNYRn+C4pQvMDmpkqxF1Npt3NEAPg0=
 golang.org/x/crypto v0.0.0-20160922170629-8e06e8ddd962/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/sys v0.0.0-20160916181909-8f0908ab3b24 h1:BL/wcoHkjubwHn2wDTAD1fehKZ9lf67KOVzucRKWPtM=
-golang.org/x/sys v0.0.0-20160916181909-8f0908ab3b24/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/text v0.0.0-20160922232553-a7c023693a94 h1:QmdGgXvDlzDdp+l90rsC+qLFmFhl2nn+rSfBnS8P4zI=
-golang.org/x/text v0.0.0-20160922232553-a7c023693a94/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=