Use SPDX-License-Identifier consistently

This replaces all of the Apache blurbs at the start of each file with an
`# SPDX-License-Identifier: Apache-2.0` string. It also fixes existing
uses to be consistent in capitalization, and to be placed above any
copyright notices.

This removes nearly 3000 lines of boilerplate from the project (only
python files), which no developer cares to look at.

SPDX is in common use, particularly in the Linux kernel, and is the
recommended format for Meson's own `project(license: )` field

25 files changed, 26 insertions, 289 deletions

diff --git a/mesonbuild/modules/__init__.py b/mesonbuild/modules/__init__.py
index bbfb5bdbd..5580acbb4 100644
--- a/mesonbuild/modules/__init__.py
+++ b/mesonbuild/modules/__init__.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2019 The Meson development team
 
-# 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.
-
 # This file contains the base representation for import('modname')
 
 from __future__ import annotations
diff --git a/mesonbuild/modules/cmake.py b/mesonbuild/modules/cmake.py
index ee4e844d1..fe6457511 100644
--- a/mesonbuild/modules/cmake.py
+++ b/mesonbuild/modules/cmake.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2018 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 import re
 import os, os.path, pathlib
diff --git a/mesonbuild/modules/cuda.py b/mesonbuild/modules/cuda.py
index 6f809cb34..a5b1f7b83 100644
--- a/mesonbuild/modules/cuda.py
+++ b/mesonbuild/modules/cuda.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2017 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 import typing as T
diff --git a/mesonbuild/modules/dlang.py b/mesonbuild/modules/dlang.py
index 6d5359fe3..ed4ac8c62 100644
--- a/mesonbuild/modules/dlang.py
+++ b/mesonbuild/modules/dlang.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2018 The Meson development team
 
-# 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.
-
 # This file contains the detection logic for external dependencies that
 # are UI-related.
 from __future__ import annotations
diff --git a/mesonbuild/modules/external_project.py b/mesonbuild/modules/external_project.py
index 4247ba0cf..bf482e217 100644
--- a/mesonbuild/modules/external_project.py
+++ b/mesonbuild/modules/external_project.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2020 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 from pathlib import Path
diff --git a/mesonbuild/modules/fs.py b/mesonbuild/modules/fs.py
index 5a9533cba..3657be08c 100644
--- a/mesonbuild/modules/fs.py
+++ b/mesonbuild/modules/fs.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2019 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 from pathlib import Path, PurePath, PureWindowsPath
 import hashlib
diff --git a/mesonbuild/modules/gnome.py b/mesonbuild/modules/gnome.py
index d8367ddbe..32df2a60e 100644
--- a/mesonbuild/modules/gnome.py
+++ b/mesonbuild/modules/gnome.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2015-2016 The Meson development team
 
-# 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.
-
 '''This module provides helper functions for Gnome/GLib related
 functionality such as gobject-introspection, gresources and gtk-doc'''
 from __future__ import annotations
diff --git a/mesonbuild/modules/hotdoc.py b/mesonbuild/modules/hotdoc.py
index f11354900..fc8832efc 100644
--- a/mesonbuild/modules/hotdoc.py
+++ b/mesonbuild/modules/hotdoc.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2018 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 '''This module provides helper functions for generating documentation using hotdoc'''
diff --git a/mesonbuild/modules/i18n.py b/mesonbuild/modules/i18n.py
index e375674d9..c2a11dd20 100644
--- a/mesonbuild/modules/i18n.py
+++ b/mesonbuild/modules/i18n.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2016 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 from os import path
diff --git a/mesonbuild/modules/icestorm.py b/mesonbuild/modules/icestorm.py
index 8c1c6f123..18bf0e202 100644
--- a/mesonbuild/modules/icestorm.py
+++ b/mesonbuild/modules/icestorm.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2017 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 import itertools
 import typing as T
diff --git a/mesonbuild/modules/java.py b/mesonbuild/modules/java.py
index f6e448454..56611ade2 100644
--- a/mesonbuild/modules/java.py
+++ b/mesonbuild/modules/java.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2021 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 import pathlib
diff --git a/mesonbuild/modules/keyval.py b/mesonbuild/modules/keyval.py
index 48afe8149..b5608fe87 100644
--- a/mesonbuild/modules/keyval.py
+++ b/mesonbuild/modules/keyval.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2017, 2019 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 import os
diff --git a/mesonbuild/modules/modtest.py b/mesonbuild/modules/modtest.py
index 5c2584061..ebc019d58 100644
--- a/mesonbuild/modules/modtest.py
+++ b/mesonbuild/modules/modtest.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2015 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 import typing as T
 
diff --git a/mesonbuild/modules/pkgconfig.py b/mesonbuild/modules/pkgconfig.py
index fa543fdb5..3f9ce7b71 100644
--- a/mesonbuild/modules/pkgconfig.py
+++ b/mesonbuild/modules/pkgconfig.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2015-2022 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 from collections import defaultdict
 from dataclasses import dataclass
diff --git a/mesonbuild/modules/python.py b/mesonbuild/modules/python.py
index ec95374d3..7a2cd2837 100644
--- a/mesonbuild/modules/python.py
+++ b/mesonbuild/modules/python.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2018 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 import copy, json, os, shutil, re
diff --git a/mesonbuild/modules/python3.py b/mesonbuild/modules/python3.py
index bc4d9af3a..a5e9cca01 100644
--- a/mesonbuild/modules/python3.py
+++ b/mesonbuild/modules/python3.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2016-2017 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 import sysconfig
diff --git a/mesonbuild/modules/qt.py b/mesonbuild/modules/qt.py
index 83dcf31bd..c2a315c7f 100644
--- a/mesonbuild/modules/qt.py
+++ b/mesonbuild/modules/qt.py
@@ -1,17 +1,7 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2015 The Meson development team
-# Copyright © 2021 Intel Corporation
+# Copyright © 2021-2023 Intel Corporation
 
-# 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.
 from __future__ import annotations
 
 import os
diff --git a/mesonbuild/modules/qt4.py b/mesonbuild/modules/qt4.py
index 6bdf1c51d..354b4a5cf 100644
--- a/mesonbuild/modules/qt4.py
+++ b/mesonbuild/modules/qt4.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2015 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 import typing as T
 
diff --git a/mesonbuild/modules/qt5.py b/mesonbuild/modules/qt5.py
index d9f0a5ecd..11958c981 100644
--- a/mesonbuild/modules/qt5.py
+++ b/mesonbuild/modules/qt5.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2015 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 import typing as T
 
diff --git a/mesonbuild/modules/qt6.py b/mesonbuild/modules/qt6.py
index cafc531af..b23204678 100644
--- a/mesonbuild/modules/qt6.py
+++ b/mesonbuild/modules/qt6.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2020 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 import typing as T
 
diff --git a/mesonbuild/modules/rust.py b/mesonbuild/modules/rust.py
index 8e55ad4f8..eb15473de 100644
--- a/mesonbuild/modules/rust.py
+++ b/mesonbuild/modules/rust.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright © 2020-2023 Intel Corporation
 
-# 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.
 from __future__ import annotations
 import itertools
 import os
diff --git a/mesonbuild/modules/simd.py b/mesonbuild/modules/simd.py
index b8baf39ef..bfdc0c2df 100644
--- a/mesonbuild/modules/simd.py
+++ b/mesonbuild/modules/simd.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2017 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 import typing as T
diff --git a/mesonbuild/modules/sourceset.py b/mesonbuild/modules/sourceset.py
index ae594b5aa..c11fef699 100644
--- a/mesonbuild/modules/sourceset.py
+++ b/mesonbuild/modules/sourceset.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2019 The Meson development team
 
-# 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.
-
 from __future__ import annotations
 import typing as T
 
diff --git a/mesonbuild/modules/wayland.py b/mesonbuild/modules/wayland.py
index 99f71d000..cab2ff453 100644
--- a/mesonbuild/modules/wayland.py
+++ b/mesonbuild/modules/wayland.py
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2022 Mark Bolhuis <mark@bolhuis.dev>
 
-# 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.
-
 from __future__ import annotations
 import os
 import typing as T
diff --git a/mesonbuild/modules/windows.py b/mesonbuild/modules/windows.py
index b7cdeb33f..29ae96b08 100644
--- a/mesonbuild/modules/windows.py
+++ b/mesonbuild/modules/windows.py
@@ -1,16 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
 # Copyright 2015 The Meson development team
 
-# 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.
 from __future__ import annotations
 
 import enum