bitbake: bitbake: Add initial pass of SPDX license headers to source code

This adds the SPDX-License-Identifier license headers to the majority of
our source files to make it clearer exactly which license files are under.

The bulk of the files are under GPL v2.0 with one found to be under V2.0
or later, some under MIT and some have dual license. There are some files
which are potentially harder to classify where we've imported upstream code
and those can be handled specifically in later commits.

The COPYING file is replaced with LICENSE.X files which contain the full
license texts.

(Bitbake rev: ff237c33337f4da2ca06c3a2c49699bc26608a6b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

5 files changed, 20 insertions, 0 deletions

diff --git a/bitbake/lib/bblayers/__init__.py b/bitbake/lib/bblayers/__init__.py
index 3ad9513f40..4e7c09da04 100644
--- a/bitbake/lib/bblayers/__init__.py
+++ b/bitbake/lib/bblayers/__init__.py
@@ -1,2 +1,6 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 from pkgutil import extend_path
 __path__ = extend_path(__path__, __name__)
diff --git a/bitbake/lib/bblayers/action.py b/bitbake/lib/bblayers/action.py
index a3f658f931..d6459d6617 100644
--- a/bitbake/lib/bblayers/action.py
+++ b/bitbake/lib/bblayers/action.py
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 import fnmatch
 import logging
 import os
diff --git a/bitbake/lib/bblayers/common.py b/bitbake/lib/bblayers/common.py
index 98515ced4f..c5657d3819 100644
--- a/bitbake/lib/bblayers/common.py
+++ b/bitbake/lib/bblayers/common.py
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 import argparse
 import logging
 import os
diff --git a/bitbake/lib/bblayers/layerindex.py b/bitbake/lib/bblayers/layerindex.py
index b2ff2268ea..57cd9027f6 100644
--- a/bitbake/lib/bblayers/layerindex.py
+++ b/bitbake/lib/bblayers/layerindex.py
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 import layerindexlib
 
 import argparse
diff --git a/bitbake/lib/bblayers/query.py b/bitbake/lib/bblayers/query.py
index 9294dfa884..993589de94 100644
--- a/bitbake/lib/bblayers/query.py
+++ b/bitbake/lib/bblayers/query.py
@@ -1,3 +1,7 @@
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
 import collections
 import fnmatch
 import logging