build: upgrade to Go 1.18.1 (#373)

api/client.gen.go

@@ -508,7 +508,7 @@ func detectContentType(body interface{}) string {
 	kind := reflect.TypeOf(body).Kind()
 
 	switch kind {
-	case reflect.Struct, reflect.Map, reflect.Ptr:
+	case reflect.Struct, reflect.Map, reflect.Pointer:
 		contentType = "application/json; charset=utf-8"
 	case reflect.String:
 		contentType = "text/plain; charset=utf-8"

api/templates/README.md

@@ -31,6 +31,7 @@ multiple locations.
 * Use `strings.EqualFold` instead of comparing two `strings.ToLower` calls
 * Update the `GenericOpenAPIError` type to enforce that error response models implement the `error` interface
 * Update `setBody` to avoid buffering data in memory when the request body is already an `io.ReadCloser`
+* Update reference from `reflect.Ptr` to `reflect.Pointer` as per the Go 1.18 spec
 
 `configuration.mustache`
 * Deleted `ContextOAuth2` key to match modification in client
@@ -45,3 +46,4 @@ multiple locations.
 `model_simple.mustache`
 * Added `yaml:` tags to all model fields to support unmarshalling camelCase
 * Added support for `x-go-field-type` vendor extension, to explicitly override the type generated for model fields
+* Use `strings.Cut` when applicable over `strings.IndexByte` and slicing

api/templates/client.mustache

@@ -492,7 +492,7 @@ func detectContentType(body interface{}) string {
 	kind := reflect.TypeOf(body).Kind()
 
 	switch kind {
-	case reflect.Struct, reflect.Map, reflect.Ptr:
+	case reflect.Struct, reflect.Map, reflect.Pointer:
 		contentType = "application/json; charset=utf-8"
 	case reflect.String:
 		contentType = "text/plain; charset=utf-8"

api/templates/model_simple.mustache

@@ -325,12 +325,7 @@ return json.Marshal(toSerialize)
             t := reflect{{{parent}}}.Type().Field(i)
 
             if jsonTag := t.Tag.Get("json"); jsonTag != "" {
-            fieldName := ""
-            if commaIdx := strings.Index(jsonTag, ","); commaIdx > 0 {
-            fieldName = jsonTag[:commaIdx]
-            } else {
-            fieldName = jsonTag
-            }
+            fieldName, _, _ := strings.Cut(jsonTag, ",")
             if fieldName != "AdditionalProperties" {
             delete(additionalProperties, fieldName)
             }