1 files changed, 53 insertions, 0 deletions
diff --git a/scripts/common.py b/scripts/common.py
new file mode 100644
index 0000000..9b23816
--- /dev/null
+++ b/scripts/common.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+
+import os
+import frontmatter
+import dateparser
+import datetime
+from pathlib import Path
+
+BLOG_LIST_FILE = '.bloglist.md'
+
+def get_href(path):
+    path = Path(path)
+    path = path.relative_to(*path.parts[:1])
+    if path.name == 'index.md':
+        return '/{}/'.format(path.parent)
+    else:
+        return '/{}/{}.html'.format(path.parent, path.stem)
+
+def read_metadata(file):
+    post = frontmatter.load(file)
+
+    for field in ['title', 'date']:
+        if post.get(field) is None:
+            raise Exception("{} is missing metadata field '{}'".format(file, field))
+
+    if type(post['date']) not in [datetime.datetime, datetime.date]:
+        date = dateparser.parse(post['date'])
+    else:
+        date = post['date']
+
+    return {
+        'title':       post.get('title'),
+        'date':        date,
+        'author':      post.get('author'),
+        'description': post.get('description'),
+        'draft':       post.get('draft'),
+        'href':        get_href(file)
+    }
+
+def get_blog_posts(blog_dir):
+    blog_index = os.path.join(blog_dir, 'index.md')
+    posts = []
+
+    for root, dirs, files in os.walk(blog_dir):
+        for file in files:
+            path = os.path.join(root, file)
+            if path.endswith('.md') and path != blog_index and file != BLOG_LIST_FILE:
+                metadata = read_metadata(path)
+                if not metadata['draft']:
+                    posts.append(metadata)
+
+    posts.sort(key=lambda p: (p is None, p['date']), reverse=True)
+    return posts