File headers: use SPDX license identifiers

Some files needed to be changed manually.

17 files changed, 34 insertions, 7 deletions

diff --git a/rigify/metarigs/Animals/bird.py b/rigify/metarigs/Animals/bird.py
index 03508418..e1897202 100644
--- a/rigify/metarigs/Animals/bird.py
+++ b/rigify/metarigs/Animals/bird.py
@@ -1,5 +1,6 @@
-import bpy
+# SPDX-License-Identifier: GPL-2.0-or-later
 
+import bpy
 
 from mathutils import Color
 
diff --git a/rigify/metarigs/Animals/cat.py b/rigify/metarigs/Animals/cat.py
index 95e08183..a6fd40ab 100644
--- a/rigify/metarigs/Animals/cat.py
+++ b/rigify/metarigs/Animals/cat.py
@@ -1,5 +1,6 @@
-import bpy
+# SPDX-License-Identifier: GPL-2.0-or-later
 
+import bpy
 
 from mathutils import Color
 
diff --git a/rigify/metarigs/Animals/horse.py b/rigify/metarigs/Animals/horse.py
index 70cb721b..cd393c5c 100644
--- a/rigify/metarigs/Animals/horse.py
+++ b/rigify/metarigs/Animals/horse.py
@@ -1,5 +1,6 @@
-import bpy
+# SPDX-License-Identifier: GPL-2.0-or-later
 
+import bpy
 
 from mathutils import Color
 
diff --git a/rigify/metarigs/Animals/shark.py b/rigify/metarigs/Animals/shark.py
index 8b72a965..6559fb4a 100644
--- a/rigify/metarigs/Animals/shark.py
+++ b/rigify/metarigs/Animals/shark.py
@@ -1,5 +1,6 @@
-import bpy
+# SPDX-License-Identifier: GPL-2.0-or-later
 
+import bpy
 
 from mathutils import Color
 
diff --git a/rigify/metarigs/Animals/wolf.py b/rigify/metarigs/Animals/wolf.py
index e6573279..a2ade910 100644
--- a/rigify/metarigs/Animals/wolf.py
+++ b/rigify/metarigs/Animals/wolf.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 import bpy
 
 
diff --git a/rigify/metarigs/Basic/basic_human.py b/rigify/metarigs/Basic/basic_human.py
index 254379a4..57b2d236 100644
--- a/rigify/metarigs/Basic/basic_human.py
+++ b/rigify/metarigs/Basic/basic_human.py
@@ -1,5 +1,6 @@
-import bpy
+# SPDX-License-Identifier: GPL-2.0-or-later
 
+import bpy
 
 from mathutils import Color
 
diff --git a/rigify/metarigs/Basic/basic_quadruped.py b/rigify/metarigs/Basic/basic_quadruped.py
index bfb73075..5575e8c4 100644
--- a/rigify/metarigs/Basic/basic_quadruped.py
+++ b/rigify/metarigs/Basic/basic_quadruped.py
@@ -1,5 +1,6 @@
-import bpy
+# SPDX-License-Identifier: GPL-2.0-or-later
 
+import bpy
 
 from mathutils import Color
 
diff --git a/rigify/metarigs/human.py b/rigify/metarigs/human.py
index 6b7a8daa..75a089ab 100644
--- a/rigify/metarigs/human.py
+++ b/rigify/metarigs/human.py
@@ -1,5 +1,6 @@
-import bpy
+# SPDX-License-Identifier: GPL-2.0-or-later
 
+import bpy
 
 from mathutils import Color
 
diff --git a/rigify/rigs/experimental/super_chain.py b/rigify/rigs/experimental/super_chain.py
index c0a0f09e..8a51a938 100644
--- a/rigify/rigs/experimental/super_chain.py
+++ b/rigify/rigs/experimental/super_chain.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 import bpy
 from mathutils import Vector
 from ...utils import copy_bone, put_bone, org, align_bone_y_axis, align_bone_x_axis, align_bone_z_axis
diff --git a/rigify/rigs/faces/super_face.py b/rigify/rigs/faces/super_face.py
index 32d013a7..4d062aaf 100644
--- a/rigify/rigs/faces/super_face.py
+++ b/rigify/rigs/faces/super_face.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 import bpy, re
 from   mathutils      import Vector
 from   ...utils       import copy_bone, flip_bone
diff --git a/rigify/rigs/limbs/limb_utils.py b/rigify/rigs/limbs/limb_utils.py
index 609da256..b60e865a 100644
--- a/rigify/rigs/limbs/limb_utils.py
+++ b/rigify/rigs/limbs/limb_utils.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 import bpy, re
 from mathutils import Vector
 from ...utils import org, strip_org, make_mechanism_name, make_deformer_name
diff --git a/rigify/rigs/utils.py b/rigify/rigs/utils.py
index 89873ca4..cbc53e3a 100644
--- a/rigify/rigs/utils.py
+++ b/rigify/rigs/utils.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 from ..utils.rig import connected_children_names
 from ..utils.naming import strip_mch, strip_org, make_mechanism_name
 import re
diff --git a/rigify/rigs/widgets.py b/rigify/rigs/widgets.py
index 0c434593..acafe750 100644
--- a/rigify/rigs/widgets.py
+++ b/rigify/rigs/widgets.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 from mathutils import Matrix
 from ..utils.widgets import create_widget, widget_generator
 
diff --git a/rigify/rot_mode.py b/rigify/rot_mode.py
index 59a233cb..a395ec6e 100644
--- a/rigify/rot_mode.py
+++ b/rigify/rot_mode.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 '''
 Quat/Euler Rotation Mode Converter v0.1
 
diff --git a/rigify/utils/__init__.py b/rigify/utils/__init__.py
index f2444d1c..8a2dee1d 100644
--- a/rigify/utils/__init__.py
+++ b/rigify/utils/__init__.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # These forwarding imports are for backwards compatibility with legacy code
 # that expects a single utils.py file. New code should import directly from
 # the modules that contain the utilities. Also, don't add more imports here.
diff --git a/rigify/utils/components.py b/rigify/utils/components.py
index 5c1ebcb6..c1d01c90 100644
--- a/rigify/utils/components.py
+++ b/rigify/utils/components.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 import bpy
 
 from .naming import make_derived_name
diff --git a/rigify/utils/switch_parent.py b/rigify/utils/switch_parent.py
index ff5217b4..d4852c43 100644
--- a/rigify/utils/switch_parent.py
+++ b/rigify/utils/switch_parent.py
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 import bpy
 
 import re