Add tag_exif_camera_lens.py utility.

utilities/tag_exif_camera_lens.py

@@ -0,0 +1,45 @@
+from voussoirkit import imagetools
+from voussoirkit import vlogging
+
+vlogging.basic_config(vlogging.INFO)
+
+import etiquette
+
+P = etiquette.photodb.PhotoDB()
+
+with P.transaction:
+    try:
+        CAMERA = P.get_tag('camera')
+    except etiquette.exceptions.NoSuchTag:
+        CAMERA = P.new_tag('camera')
+
+    try:
+        LENS = P.get_tag('lens')
+    except etiquette.exceptions.NoSuchTag:
+        LENS = P.new_tag('lens')
+
+    for photo in P.search(extension=['jpeg', 'jpg'], yield_albums=False):
+        if not photo.real_path.exists:
+            continue
+        exif = imagetools.exifread(photo.real_path)
+        camera_make = exif.get('Image Make')
+        camera_model = exif.get('Image Model')
+        camera_make = camera_make.values if camera_make else ''
+        camera_model = camera_model.values if camera_model else ''
+        camera = ' '.join([camera_make, camera_model]).strip().replace('.', '')
+        lens = exif.get('EXIF LensModel')
+        lens = (lens.values if lens else '').replace('.', '')
+        if camera:
+            try:
+                camera_tag = P.get_tag(camera)
+            except etiquette.exceptions.NoSuchTag:
+                camera_tag = P.new_tag(camera)
+                CAMERA.add_child(camera_tag)
+            photo.add_tag(camera_tag)
+        if lens:
+            try:
+                lens_tag = P.get_tag(lens)
+            except etiquette.exceptions.NoSuchTag:
+                lens_tag = P.new_tag(lens)
+                LENS.add_child(lens_tag)
+            photo.add_tag(lens_tag)