Cycles: use SPDX license headers

* Replace license text in headers with SPDX identifiers.
* Remove specific license info from outdated readme.txt, instead leave details
  to the source files.
* Add list of SPDX license identifiers used, and corresponding license texts.
* Update copyright dates while we're at it.

Ref D14069, T95597

9 files changed, 18 insertions, 135 deletions

diff --git a/intern/cycles/blender/addon/__init__.py b/intern/cycles/blender/addon/__init__.py
index 1ce25a253f9..5578e83b19a 100644
--- a/intern/cycles/blender/addon/__init__.py
+++ b/intern/cycles/blender/addon/__init__.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2013 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations
diff --git a/intern/cycles/blender/addon/camera.py b/intern/cycles/blender/addon/camera.py
index d4133796875..9841e031201 100644
--- a/intern/cycles/blender/addon/camera.py
+++ b/intern/cycles/blender/addon/camera.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2021 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 
diff --git a/intern/cycles/blender/addon/engine.py b/intern/cycles/blender/addon/engine.py
index 88526212d31..48dd26cc622 100644
--- a/intern/cycles/blender/addon/engine.py
+++ b/intern/cycles/blender/addon/engine.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2013 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations
diff --git a/intern/cycles/blender/addon/operators.py b/intern/cycles/blender/addon/operators.py
index dca727e316e..973088ac3e7 100644
--- a/intern/cycles/blender/addon/operators.py
+++ b/intern/cycles/blender/addon/operators.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2019 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations
diff --git a/intern/cycles/blender/addon/osl.py b/intern/cycles/blender/addon/osl.py
index d4c3c447951..9430dc5d115 100644
--- a/intern/cycles/blender/addon/osl.py
+++ b/intern/cycles/blender/addon/osl.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2013 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations
diff --git a/intern/cycles/blender/addon/presets.py b/intern/cycles/blender/addon/presets.py
index 50093438bda..a84c9f07c55 100644
--- a/intern/cycles/blender/addon/presets.py
+++ b/intern/cycles/blender/addon/presets.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2013 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations
diff --git a/intern/cycles/blender/addon/properties.py b/intern/cycles/blender/addon/properties.py
index 01e73d7ed03..4c103b6b52f 100644
--- a/intern/cycles/blender/addon/properties.py
+++ b/intern/cycles/blender/addon/properties.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2013 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations
diff --git a/intern/cycles/blender/addon/ui.py b/intern/cycles/blender/addon/ui.py
index e4b2fef87c3..10a72c598e2 100644
--- a/intern/cycles/blender/addon/ui.py
+++ b/intern/cycles/blender/addon/ui.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2013 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations
diff --git a/intern/cycles/blender/addon/version_update.py b/intern/cycles/blender/addon/version_update.py
index dab62713525..e844ea8407a 100644
--- a/intern/cycles/blender/addon/version_update.py
+++ b/intern/cycles/blender/addon/version_update.py
@@ -1,18 +1,5 @@
-#
-# Copyright 2011-2014 Blender Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
+# SPDX-License-Identifier: Apache-2.0
+# Copyright 2011-2022 Blender Foundation
 
 # <pep8 compliant>
 from __future__ import annotations