allow globbing, and extract queries from .go files

generate/testdata/queries/QueryWithStructs.graphql.go

@@ -0,0 +1,43 @@
+package test
+
+// Code generated by github.com/Khan/genqlient, DO NOT EDIT.
+
+import (
+	"github.com/Khan/genqlient/graphql"
+)
+
+type QueryWithStructsResponse struct {
+	User QueryWithStructsUser `json:"user"`
+}
+
+type QueryWithStructsUser struct {
+	AuthMethods []QueryWithStructsUserAuthMethodsAuthMethod `json:"authMethods"`
+}
+
+type QueryWithStructsUserAuthMethodsAuthMethod struct {
+	Provider string `json:"provider"`
+	Email    string `json:"email"`
+}
+
+func QueryWithStructs(
+	client graphql.Client,
+) (*QueryWithStructsResponse, error) {
+	var retval QueryWithStructsResponse
+	err := client.MakeRequest(
+		nil,
+		"QueryWithStructs",
+		`
+query QueryWithStructs {
+	user {
+		authMethods {
+			provider
+			email
+		}
+	}
+}
+`,
+		&retval,
+		nil,
+	)
+	return &retval, err
+}