Nixify app: Add flake, load content from dynamic path

- Package with flake
- Load content from a path given with an environment variable, with the
  intention of loading this from a derivation

1 files changed, 19 insertions, 8 deletions

diff --git a/src/blog_node5_net.py b/src/blog_node5_net.py
index a8961d8..7da959c 100644
--- a/src/blog_node5_net.py
+++ b/src/blog_node5_net.py
@@ -5,6 +5,7 @@ import signal
 import sys
 import typing
 import urllib
+import pathlib
 
 import flask
 import markdown
@@ -50,10 +51,11 @@ stream_handler.setFormatter(CustomFormatter())
 logger.root.addHandler(stream_handler)
 logger.info(f"Debug: {'en' if debug else 'dis'}abled")
 
-with open(os.path.join('configs', 'config.yml'), 'r') as file:
-    config = yaml.safe_load(file.read())
+content_root_path = os.environ.get("CONTENT_ROOT_PATH")
+if not content_root_path:
+    sys.exit("ERROR: required environment variable CONTENT_ROOT_PATH is not set")
 
-article_generator = article.ArticleGenerator(os.path.join(config['site_root_folder_path'], 'articles'))
+article_generator = article.ArticleGenerator(os.path.join(content_root_path, 'articles'))
 
 
 def get_articles() -> article.Folder:
@@ -70,10 +72,11 @@ if len(sys.argv) > 1 and sys.argv[1] == 'validate':
     logger.info('OK')
     exit(0)
 
-app = flask.Flask(__name__, template_folder=os.path.join('..', config['site_root_folder_path'], 'templates'),
-                  static_folder=os.path.join('..', config['site_root_folder_path'], 'static'), static_url_path='')
-
-with open(os.path.join(config['site_root_folder_path'], 'motd.md'), 'r') as file:
+template_path = os.path.join('..', content_root_path, 'templates')
+logger.debug(f"template path: {template_path}")
+app = flask.Flask(__name__, template_folder=template_path,
+                  static_folder=os.path.join('..', content_root_path, 'static'), static_url_path='')
+with open(os.path.join(content_root_path, 'motd.md'), 'r') as file:
     motd_list = [markupsafe.Markup(markdown.markdown(line)) for line in file.readlines()]
 
 folders_by_url: typing.Dict[str, article.Folder] = {}
@@ -107,7 +110,7 @@ def inject_common():
         'insert_sql_pretty': insert_sql_pretty,
         'comments_sql': markupsafe.Markup(markdown.markdown(sql_pretty)),
         'comments': comments_formatted,
-        'title': config['site_root_folder_path'],
+        'title': pathlib.Path(content_root_path).name,
         'motd': random.choice(motd_list)
     }
 
@@ -203,3 +206,11 @@ def signal_handler(signum, frame):
 
 
 signal.signal(signal.SIGHUP, signal_handler)
+
+
+def main():
+    global app
+    app.run()
+
+if __name__ == '__main__':
+    main()