fix where the feed generator outputs to, and also output error pages

Signed-off-by: Brian S. Stephan <bss@incorporeal.org>

incorporealcms/__init__.py

@@ -8,10 +8,16 @@ import logging
 import os
 from logging.config import dictConfig
 
+from jinja2 import Environment, PackageLoader, select_autoescape
 from termcolor import cprint
 
 from incorporealcms.config import Config
 
+jinja_env = Environment(
+    loader=PackageLoader('incorporealcms'),
+    autoescape=select_autoescape(),
+)
+
 # dynamically generate version number
 try:
     # packaged/pip install -e . value

incorporealcms/error_pages.py

@@ -0,0 +1,21 @@
+"""Process the error page templates.
+
+SPDX-FileCopyrightText: © 2025 Brian S. Stephan <bss@incorporeal.org>
+SPDX-License-Identifier: GPL-3.0-only
+"""
+import os
+
+from incorporealcms import jinja_env
+from incorporealcms.config import Config
+
+
+def generate_error_pages(dest_dir: str) -> None:
+    """Process the error pages and place them in the output dir.
+
+    Args:
+        dest_dir: the directory to place the error pages in, for a web server to serve
+    """
+    for template_name in ['400.html', '404.html', '500.html']:
+        template = jinja_env.get_template(template_name)
+        with open(os.path.join(dest_dir, template_name), 'w') as error_page:
+            error_page.write(template.render(config=Config))

incorporealcms/markdown.py

@@ -13,18 +13,13 @@ import os
 import re
 
 import markdown
-from jinja2 import Environment, PackageLoader, select_autoescape
 from markupsafe import Markup
 
+from incorporealcms import jinja_env
 from incorporealcms.config import Config
 
 logger = logging.getLogger(__name__)
 
-jinja_env = Environment(
-    loader=PackageLoader('incorporealcms'),
-    autoescape=select_autoescape(),
-)
-
 
 def get_meta_str(md, key):
     """Provide the page's (parsed in Markup obj md) metadata for the specified key, or '' if unset."""

incorporealcms/ssg.py

@@ -12,6 +12,7 @@ import tempfile
 from termcolor import cprint
 
 from incorporealcms import __version__, init_instance
+from incorporealcms.error_pages import generate_error_pages
 from incorporealcms.feed import generate_feed
 from incorporealcms.markdown import handle_markdown_file_path
 
@@ -61,8 +62,12 @@ class StaticSiteGenerator(object):
 
         # generate the feeds
         cprint("generating feeds", 'green')
-        generate_feed('atom', self.instance_dir, self.output_dir)
-        generate_feed('rss', self.instance_dir, self.output_dir)
+        generate_feed('atom', self.instance_dir, tmp_output_dir)
+        generate_feed('rss', self.instance_dir, tmp_output_dir)
+
+        # generate the error pages
+        cprint("generating error pages", 'green')
+        generate_error_pages(tmp_output_dir)
 
         # move temporary dir to the destination
         old_output_dir = f'{self.output_dir}-old-{os.path.basename(tmp_output_dir)}'

incorporealcms/templates/404.html

@@ -13,7 +13,7 @@ SPDX-License-Identifier: GPL-3.0-only
 {% block body %}
 <div class="content">
     <h1>NOT FOUND</h1>
-    <p>Sorry, <b><tt>{{ request.path }}</tt></b> does not seem to exist, at least not anymore.</p>
+    <p>Sorry, the file you requested does not seem to exist, at least not anymore.</p>
     <p>It's possible you followed a dead link on this site, in which case I would appreciate it if you could email me at
     {{ config.CONTACT_EMAIL }} and I can take a look. I make an effort to symlink old content to its new location,
     so old links and URLs should, generally speaking, work.</p>