Add GPL header to autobuild scripts

This also adds a comment to the CONTRIBUTING guidelines

.github/autobuild/android.sh

@@ -1,4 +1,29 @@
 #!/bin/bash
+##############################################################################
+ # Copyright (c) 2022-2023
+ #
+ # Author(s):
+ #  Christian Hoffmann
+ #  The Jamulus Development Team
+ #
+ ##############################################################################
+ #
+ # 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 2 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, write to the Free Software Foundation, Inc.,
+ # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ #
+##############################################################################
+
 set -eu
 
 # Some of the following version pinnings are semi-automatically checked for

.github/autobuild/extractVersionChangelog.pl

@@ -1,4 +1,29 @@
 #!/usr/bin/env perl
+##############################################################################
+ # Copyright (c) 2021-2023
+ #
+ # Author(s):
+ #  ann0see
+ #  Christian Hoffmann
+ #  The Jamulus Development Team
+ #
+ ##############################################################################
+ #
+ # 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 2 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, write to the Free Software Foundation, Inc.,
+ # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ #
+##############################################################################
 
 use strict;
 use warnings;

.github/autobuild/get_build_vars.py

@@ -1,4 +1,29 @@
 #!/usr/bin/env python3
+##############################################################################
+ # Copyright (c) 2022-2023
+ #
+ # Author(s):
+ #  Christian Hoffmann
+ #  The Jamulus Development Team
+ #
+ ##############################################################################
+ #
+ # 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 2 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, write to the Free Software Foundation, Inc.,
+ # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ #
+##############################################################################
+
 """
 This script is triggered from the GitHub Autobuild workflow.
 It analyzes Jamulus.pro and git push details (tag vs. branch, etc.) to decide

.github/autobuild/ios.sh

@@ -1,4 +1,29 @@
 #!/bin/bash
+##############################################################################
+ # Copyright (c) 2022-2023
+ #
+ # Author(s):
+ #  Christian Hoffmann
+ #  The Jamulus Development Team
+ #
+ ##############################################################################
+ #
+ # 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 2 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, write to the Free Software Foundation, Inc.,
+ # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ #
+##############################################################################
+
 set -eu
 
 QT_DIR=/usr/local/opt/qt

.github/autobuild/linux_deb.sh

@@ -1,4 +1,29 @@
 #!/bin/bash
+##############################################################################
+ # Copyright (c) 2022-2023
+ #
+ # Author(s):
+ #  Christian Hoffmann
+ #  The Jamulus Development Team
+ #
+ ##############################################################################
+ #
+ # 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 2 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, write to the Free Software Foundation, Inc.,
+ # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ #
+##############################################################################
+
 set -eu
 
 if [[ ! ${JAMULUS_BUILD_VERSION:-} =~ [0-9]+\.[0-9]+\.[0-9]+ ]]; then

.github/autobuild/mac.sh

@@ -1,4 +1,29 @@
 #!/bin/bash
+##############################################################################
+ # Copyright (c) 2022-2023
+ #
+ # Author(s):
+ #  Christian Hoffmann
+ #  The Jamulus Development Team
+ #
+ ##############################################################################
+ #
+ # 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 2 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, write to the Free Software Foundation, Inc.,
+ # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ #
+##############################################################################
+
 set -eu
 
 QT_DIR=/usr/local/opt/qt

.github/autobuild/windows.ps1

@@ -1,3 +1,28 @@
+##############################################################################
+ # Copyright (c) 2022-2023
+ #
+ # Author(s):
+ #  Christian Hoffmann
+ #  The Jamulus Development Team
+ #
+ ##############################################################################
+ #
+ # 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 2 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, write to the Free Software Foundation, Inc.,
+ # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ #
+##############################################################################
+
 # Steps for generating Windows artifacts via Github Actions
 # See README.md in this folder for details.
 # See windows/deploy_windows.ps1 for standalone builds.

CONTRIBUTING.md

@@ -46,6 +46,9 @@ Please install and use [pylint](https://pylint.org/) to scan any Python code.
 There is a configuration file that defines some overrides,
 and note the [Editorconfig file](.editorconfig) in the project too.
 
+### Licensing
+
+If you add new (source code) files, please add a header with the license to the file. This clarifies how your work is licensed.
 
 ### Supported platforms