Adds the GPL clauses to main source code files

1 files changed, 17 insertions, 0 deletions

diff --git a/cmd/api/errors.go b/cmd/api/errors.go
index 2a40bad..5f5122a 100644
--- a/cmd/api/errors.go
+++ b/cmd/api/errors.go
@@ -1,3 +1,20 @@
+// dbasik provides a service with which to convert spreadsheets containing
+// data to JSON for further processing.
+
+// Copyright (C) 2024 M R Lemon
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 package main
 
 import (