From b8824ee868728afcda6cd5556c997ca29a700cf2 Mon Sep 17 00:00:00 2001
From: Fernandez Ludovic <ldez@users.noreply.github.com>
Date: Wed, 23 Jul 2025 22:26:36 +0200
Subject: [PATCH] tagliatelle: force upper case for custom initialisms

---
 pkg/golinters/tagliatelle/tagliatelle.go         |  8 +++++++-
 .../testdata/tagliatelle_initialism_overrides.go | 10 ++++++++++
 .../tagliatelle_initialism_overrides.yml         | 16 ++++++++++++++++
 3 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.go
 create mode 100644 pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.yml

diff --git a/pkg/golinters/tagliatelle/tagliatelle.go b/pkg/golinters/tagliatelle/tagliatelle.go
index e12cc9e82062..d0268d11fe8c 100644
--- a/pkg/golinters/tagliatelle/tagliatelle.go
+++ b/pkg/golinters/tagliatelle/tagliatelle.go
@@ -2,6 +2,7 @@ package tagliatelle
 
 import (
 	"maps"
+	"strings"
 
 	"github.com/ldez/tagliatelle"
 
@@ -50,10 +51,15 @@ func toExtendedRules(src map[string]config.TagliatelleExtendedRule) map[string]t
 	result := make(map[string]tagliatelle.ExtendedRule, len(src))
 
 	for k, v := range src {
+		initialismOverrides := make(map[string]bool, len(v.InitialismOverrides))
+		for ki, vi := range v.InitialismOverrides {
+			initialismOverrides[strings.ToUpper(ki)] = vi
+		}
+
 		result[k] = tagliatelle.ExtendedRule{
 			Case:                v.Case,
 			ExtraInitialisms:    v.ExtraInitialisms,
-			InitialismOverrides: v.InitialismOverrides,
+			InitialismOverrides: initialismOverrides,
 		}
 	}
 
diff --git a/pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.go b/pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.go
new file mode 100644
index 000000000000..f3d712def395
--- /dev/null
+++ b/pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.go
@@ -0,0 +1,10 @@
+//golangcitest:args -Etagliatelle
+//golangcitest:config_path testdata/tagliatelle_initialism_overrides.yml
+package testdata
+
+type Foo struct {
+	UserAMQP   string `json:"useAmqp"` // want `json\(camel\): got 'useAmqp' want 'useAMQP'`
+	FooLHS     string `json:"fooLhs"`
+	FooRHS     string `json:"fooRhs"`     // want `json\(camel\): got 'fooRhs' want 'fooRHS'`
+	SomeAWSKey string `json:"someAwsKey"` // want `json\(camel\): got 'someAwsKey' want 'someAWSKey'`
+}
diff --git a/pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.yml b/pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.yml
new file mode 100644
index 000000000000..1cba480b393e
--- /dev/null
+++ b/pkg/golinters/tagliatelle/testdata/tagliatelle_initialism_overrides.yml
@@ -0,0 +1,16 @@
+version: "2"
+
+linters:
+  settings:
+    tagliatelle:
+      case:
+        rules:
+          json: camel
+        extended-rules:
+          json:
+            case: camel
+            extra-initialisms: true
+            initialism-overrides:
+              LHS: false
+              RHS: true
+              AWS: true