Add a slug argument to the new-photo-post script

scripts/new-photo-post.py

@@ -8,6 +8,7 @@ New script.
 import argparse
 import datetime
 import os.path
+import re
 import shutil
 import subprocess
 from PIL import Image
@@ -15,10 +16,14 @@ from PIL.ExifTags import TAGS
 
 PHOTOS_CONTENT_DIR = 'content/photos'
 
+def slugify(s):
+    return re.sub(r'\s+', '-', s.strip().lower())
+
 def parse_args(argv, *a, **kw):
     parser = argparse.ArgumentParser(*a, **kw)
     parser.add_argument('-n', '--dry-run', action='store_true')
-    parser.add_argument('-t', '--title', type=str)
+    parser.add_argument('-t', '--title')
+    parser.add_argument('-s', '--slug')
     parser.add_argument('photos', nargs='+')
     args = parser.parse_args(argv)
     return args
@@ -47,7 +52,12 @@ def main(argv):
     year = earliest_exif_date.year
     month = earliest_exif_date.month
 
-    name = args.title if args.title else os.path.splitext(os.path.basename(photo))[0]
+    if args.slug:
+        name = args.slug
+    elif args.title:
+        name = slugify(args.title)
+    else:
+        name = os.path.splitext(os.path.basename(photo))[0]
 
     post_path_year = os.path.join(PHOTOS_CONTENT_DIR, f'{year:04}', name)
     post_path_year_month = os.path.join(PHOTOS_CONTENT_DIR, f'{year:04}', f'{month:02}', name)
@@ -74,6 +84,24 @@ def main(argv):
         print(f'Failed to create new Hugo post', file=sys.stderr)
         return -1
 
+    if args.title:
+        # The hugo command can't set a title for a post so I need to do it myself.
+        index_file_path = os.path.join(post_path, 'index.md')
+        with open(index_file_path) as index_file:
+            index_file_contents = index_file.readlines()
+
+        for i in range(len(index_file_contents)):
+            line = index_file_contents[i]
+
+            if not line.startswith('title:'):
+                continue
+
+            updated_line = f'title: "{args.title}"\n'
+            index_file_contents[i] = updated_line
+
+        with open(index_file_path, 'w') as index_file:
+            index_file.writelines(index_file_contents)
+
     for photo in args.photos:
         print(f'Copy {photo} -> {post_path}')
         try: