Blog iteration #2

app/__init__.py

@@ -1,8 +1,86 @@
-from flask import Flask
+import datetime
+import os
+import re
+from typing import Optional
 
-app = Flask(__name__)
+from markdown import markdown
+
+from flask import Flask, abort, send_from_directory, render_template
+
+basedir = os.path.abspath(os.path.join(os.path.realpath(__file__), '..', '..'))
+templates_dir = os.path.join(basedir, 'templates')
+static_dir = os.path.join(basedir, 'static')
+pages_dir = os.path.join(static_dir, 'pages')
+img_dir = os.path.join(static_dir, 'img')
+css_dir = os.path.join(static_dir, 'css')
+
+app = Flask(__name__, template_folder=templates_dir)
 
 
-@app.route('/')
-def test():
-    return 'It works!'
+def parse_page_title(page: str) -> str:
+    if page.endswith('.md'):
+        page = page[:-3]
+
+    return page.replace('-', ' ')
+
+
+def get_page_metadata(page: str) -> dict:
+    if not page.endswith('.md'):
+        page = page + '.md'
+
+    if not os.path.isfile(os.path.join(pages_dir, page)):
+        abort(404)
+
+    metadata = {}
+    with open(os.path.join(pages_dir, page), 'r') as f:
+        for line in f.readlines():
+            if not line:
+                continue
+
+            if not (m := re.match(r'^\[//]: # \(([^:]+):\s*([^)]+)\)\s*$', line)):
+                break
+
+            metadata[m.group(1)] = m.group(2)
+
+    return metadata
+
+
+def get_page(page: str, title: Optional[str] = None):
+    if not page.endswith('.md'):
+        page = page + '.md'
+
+    metadata = get_page_metadata(page)
+    with open(os.path.join(pages_dir, page), 'r') as f:
+        return render_template('article.html',
+                               title=title if title else metadata.get('title', 'Platypush Blog'),
+                               published=(datetime.date.fromisoformat(metadata['published']).strftime('%b %d, %Y')
+                                          if metadata.get('published') else None),
+                               content=markdown(f.read(),extensions=['fenced_code', 'codehilite']))
+
+
+@app.route('/', methods=['GET'])
+def home_route():
+    return get_page('Home', title='Platypush Blog')
+
+
+@app.route('/favicon.ico', methods=['GET'])
+def favicon_route():
+    return send_from_directory(img_dir, 'favicon.ico')
+
+
+@app.route('/img/<img>', methods=['GET'])
+def img_route(img: str):
+    return send_from_directory(img_dir, img)
+
+
+@app.route('/css/<style>', methods=['GET'])
+def css_route(style: str):
+    return send_from_directory(css_dir, style)
+
+
+@app.route('/<path:path>', methods=['GET'])
+def catch_all(path: str):
+    if path.endswith('.md'):
+        return get_page(path)
+
+    abort(404)

app/__main__.py

@@ -0,0 +1,18 @@
+import argparse
+import sys
+
+from . import app
+
+
+def get_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--host', dest='host', required=False, default='0.0.0.0', help='Bind host/address')
+    parser.add_argument('--port', dest='port', required=False, type=int, default=8000, help='Bind port (default: 8000)')
+    parser.add_argument('--debug', dest='debug', required=False, action='store_true', default=False,
+                        help='Enable debug mode (default: False)')
+
+    return parser.parse_known_args(sys.argv[1:])
+
+
+opts = get_args()[0]
+app.run(host=opts.host, port=opts.port, debug=opts.debug)