From 045eb5986ea11174b2ee39dc8476b365d734d37d Mon Sep 17 00:00:00 2001
From: David Luevano Alvarado <david@luevano.xyz>
Date: Sat, 5 Jun 2021 03:13:59 -0600
Subject: refactor code and add image_url parsing

---
 ChangeLog                  |   5 ++
 README.md                  |  16 +++---
 src/pyssg/builder.py       | 134 +++++++++++++++++----------------------------
 src/pyssg/configuration.py |  53 ++++++++++++------
 src/pyssg/page.py          |  46 +++++++++-------
 src/pyssg/parser.py        |  11 ++--
 src/pyssg/plt/index.html   |   6 +-
 src/pyssg/plt/page.html    |   4 +-
 src/pyssg/plt/rss.xml      |  18 +++---
 src/pyssg/plt/sitemap.xml  |   2 +-
 src/pyssg/plt/tag.html     |   4 +-
 src/pyssg/pyssg.py         |  34 +++---------
 src/pyssg/rss.py           |  38 -------------
 src/pyssg/sitemap.py       |  38 -------------
 14 files changed, 156 insertions(+), 253 deletions(-)
 delete mode 100644 src/pyssg/rss.py
 delete mode 100644 src/pyssg/sitemap.py

diff --git a/ChangeLog b/ChangeLog
index 0f22491..edde04e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,11 @@
 CHANGES
 =======
 
+v0.5.2
+------
+
+* fix minor bug on rss template
+
 v0.5.1
 ------
 
diff --git a/README.md b/README.md
index f337961..ff20b5b 100644
--- a/README.md
+++ b/README.md
@@ -71,12 +71,13 @@ For more options/flags just checkout `pyssg -h`.
 
 Here is the list of variables that you can use specific Jinja templates with a short description. Note that all urls are without the trailing slash `/`.
 
-- General:
-    - `site_title` (`str`) (all): title of the website.
-    - `site_base_url` (`str`) (all): base url of the website.
-    - `site_base_static_url` (`str`) (all): base static url where all static files are located, mostly needed for correct rss feed generator when using a `base` tag and using relative links to files. For more, see [<base>](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base).
-    - `pyssg_version` (`str`) (all): version in numeric form, i.e. `0.5.0`.
-    - `run_date` (`str`) (all): date when the program was run, with format required for rss.
+- `config` (`Configuration`) (all): configuration object containing general/global attributes, the useful ones being:
+    - `title` (`str`): title of the website.
+    - `url` (`str`): base url of the website.
+    - `static_url` (`str`): base static url where all static files are located, mostly needed for correct rss feed generator when using a `base` tag and using relative links to files. For more, see [<base>](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base).
+    - `default_image_url` (`str`): as defined in `DEFAULT_IMAGE_URL` configuration option.
+    - `version` (`str`): version in numeric form, i.e. `0.5.0`.
+    - `run_date` (`str`): date when the program was run, with format required for rss.
 - Pages:
     - `all_pages` (`list(Page)`) (all): list of all the pages, sorted by creation time, reversed.
     - `page` (`Page`) (`page.html`): page object that contains the following attributes:
@@ -98,7 +99,8 @@ Here is the list of variables that you can use specific Jinja templates with a s
         - `summary` (`str`): summary of the page, as specified in the `*.md` file.
         - `lang` (`str`): page language, used for the general `html` tag `lang` attribute.
         - `tags` (`list(tuple(str))`): list of tuple of tags of the page, containing the name and the url of the tag, in that order. Defaults to empty list.
-        - `url` (`str`): url of the page, this already includes the `site_base_url`.
+        - `url` (`str`): url of the page, this already includes the `config.url`.
+        - `image_url` (`str`): image url of the page, this already includes the `config.static_url`. Defaults to the `DEFAULT_IMAGE_URL` configuration option.
         - `next/previous` (`Page`): reference to the next or previous page object (containing all these attributes). Defaults to None
         - `og` (`dict(str, str)`): dict for object graph metadata.
         - `meta` (`dict(str, list(str))`): meta dict as obtained from python-markdown, in case you use a meta tag not yet supported, it will be available there.
diff --git a/src/pyssg/builder.py b/src/pyssg/builder.py
index b6bd371..84494da 100644
--- a/src/pyssg/builder.py
+++ b/src/pyssg/builder.py
@@ -1,10 +1,9 @@
 import os
 import shutil
+from copy import deepcopy
 from operator import itemgetter
 from jinja2 import Environment, Template
 from markdown import Markdown
-from importlib.metadata import version
-from datetime import datetime, timezone
 
 from .configuration import Configuration
 from .database import Database
@@ -13,24 +12,11 @@ from .page import Page
 from .discovery import get_file_list, get_dir_structure
 
 
-VERSION = version('pyssg')
-# specific format for rss
-DFORMAT = '%a, %d %b %Y %H:%M:%S GMT'
-RUN_DATE = datetime.now(tz=timezone.utc).strftime(DFORMAT)
-
-
-class HTMLBuilder:
+class Builder:
     def __init__(self, config: Configuration,
                  env: Environment,
                  db: Database,
                  md: Markdown):
-        self.src: str = config.src
-        self.dst: str = config.dst
-        self.title: str = config.title
-        self.base_url: str = config.base_url
-        self.base_static_url: str = config.base_static_url
-        self.force: bool = config.force
-
         self.config: Configuration = config
         self.env: Environment = env
         self.db: Database = db
@@ -43,32 +29,39 @@ class HTMLBuilder:
         self.all_pages: list[Page] = None
         self.updated_pages: list[Page] = None
         self.all_tags: list[str] = None
+        self.common_vars: dict = None
 
 
     def build(self) -> None:
-        self.dirs = get_dir_structure(self.src, ['templates'])
-        self.md_files = get_file_list(self.src, ['.md'], ['templates'])
-        self.html_files = get_file_list(self.src, ['.html'], ['templates'])
+        self.dirs = get_dir_structure(self.config.src, ['templates'])
+        self.md_files = get_file_list(self.config.src, ['.md'], ['templates'])
+        self.html_files = get_file_list(self.config.src, ['.html'], ['templates'])
 
         self.__create_dir_structure()
         self.__copy_html_files()
 
-        parser: MDParser = MDParser(self.src,
+        parser: MDParser = MDParser(self.config.src,
                                     self.md_files,
+                                    self.config,
                                     self.db,
                                     self.md)
-        parser.parse(self.config)
+        parser.parse()
 
-        # just to be able to extract all pages out of this class
+        # just so i don't have to pass these vars to all the functions
         self.all_pages = parser.all_pages
         self.updated_pages = parser.updated_pages
         self.all_tags = parser.all_tags
 
-        # create the article index
-        self.__create_article_index()
-        # check if all pages should be created
-        self.__create_articles()
-        self.__create_tags()
+        # dict for the keyword args to pass to the template renderer
+        self.common_vars = dict(config=self.config,
+                                all_pages=self.all_pages,
+                                all_tags=self.all_tags)
+
+        self.__render_articles()
+        self.__render_tags()
+        self.__render_template('index.html', 'index.html', **self.common_vars)
+        self.__render_template('rss.xml', 'rss.xml', **self.common_vars)
+        self.__render_template('sitemap.xml', 'sitemap.xml', **self.common_vars)
 
 
     def __create_dir_structure(self) -> None:
@@ -76,7 +69,7 @@ class HTMLBuilder:
             # for the dir structure,
             # doesn't matter if the dir already exists
             try:
-                os.makedirs(os.path.join(self.dst, d))
+                os.makedirs(os.path.join(self.config.dst, d))
             except FileExistsError:
                 pass
 
@@ -86,59 +79,33 @@ class HTMLBuilder:
         dst_file: str = None
 
         for f in self.html_files:
-            src_file = os.path.join(self.src, f)
-            dst_file = os.path.join(self.dst, f)
+            src_file = os.path.join(self.config.src, f)
+            dst_file = os.path.join(self.config.dst, f)
 
             # only copy files if they have been modified (or are new)
-            if self.db.update(src_file, remove=f'{self.src}/'):
+            if self.db.update(src_file, remove=f'{self.config.src}/'):
                 shutil.copy2(src_file, dst_file)
 
 
-    def __create_article_index(self) -> None:
-        template: Template = self.env.get_template("index.html")
-        content: str = template.render(site_title=self.title,
-                                       site_base_url=self.base_url,
-                                       site_base_static_url=self.base_static_url,
-                                       pyssg_version=VERSION,
-                                       run_date=RUN_DATE,
-                                       all_pages=self.all_pages,
-                                       all_tags=self.all_tags)
-
-        with open(os.path.join(self.dst, 'index.html'), 'w') as f:
-            f.write(content)
-
-
-    def __create_articles(self) -> None:
+    def __render_articles(self) -> None:
+        article_vars: dict = deepcopy(self.common_vars)
         # check if only updated should be created
-        if self.force:
+        if self.config.force:
             for p in self.all_pages:
-                self.__create_article(p)
+                article_vars['page'] = p
+                self.__render_template("page.html",
+                                       p.name.replace('.md','.html'),
+                                       **article_vars)
         else:
             for p in self.updated_pages:
-                self.__create_article(p)
+                article_vars['page'] = p
+                self.__render_template("page.html",
+                                       p.name.replace('.md','.html'),
+                                       **article_vars)
 
 
-    def __create_article(self, page: Page) -> None:
-        # prepare html file name
-        f_name: str = page.name
-        f_name = f_name.replace('.md', '.html')
-
-        template: Template = self.env.get_template("page.html")
-        content: str = template.render(site_title=self.title,
-                                       site_base_url=self.base_url,
-                                       site_base_static_url=self.base_static_url,
-                                       pyssg_version=VERSION,
-                                       run_date=RUN_DATE,
-                                       all_pages=self.all_pages,
-                                       all_tags=self.all_tags,
-                                       page=page)
-
-
-        with open(os.path.join(self.dst, f_name), 'w') as f:
-            f.write(content)
-
-
-    def __create_tags(self) -> None:
+    def __render_tags(self) -> None:
+        tag_vars: dict = deepcopy(self.common_vars)
         for t in self.all_tags:
             # get a list of all pages that have current tag
             tag_pages: list[Page] = []
@@ -147,26 +114,23 @@ class HTMLBuilder:
                                                            p.tags)):
                     tag_pages.append(p)
 
+            tag_vars['tag'] = t
+            tag_vars['tag_pages'] = tag_pages
+
             # build tag page
-            self.__create_tag(t, tag_pages)
+            self.__render_template('tag.html',
+                                   f'tag/@{t[0]}.html',
+                                   **tag_vars)
 
             # clean list of pages with current tag
             tag_pages = []
 
 
-    def __create_tag(self, tag: tuple[str],
-                     pages: list[Page]) -> None:
-
-        template: Template = self.env.get_template("tag.html")
-        content: str = template.render(site_title=self.title,
-                                       site_base_url=self.base_url,
-                                       site_base_static_url=self.base_static_url,
-                                       pyssg_version=VERSION,
-                                       run_date=RUN_DATE,
-                                       all_pages=self.all_pages,
-                                       all_tags=self.all_tags,
-                                       tag=tag,
-                                       tag_pages=pages)
+    def __render_template(self, template_name: str,
+                          file_name: str,
+                          **template_vars) -> None:
+        template: Template = self.env.get_template(template_name)
+        content: str = template.render(**template_vars)
 
-        with open(os.path.join(self.dst, f'tag/@{tag[0]}.html'), 'w') as f:
+        with open(os.path.join(self.config.dst, file_name), 'w') as f:
             f.write(content)
diff --git a/src/pyssg/configuration.py b/src/pyssg/configuration.py
index dca43b5..e07f452 100644
--- a/src/pyssg/configuration.py
+++ b/src/pyssg/configuration.py
@@ -1,21 +1,33 @@
 import os
 from typing import Union
+from importlib.metadata import version
+from datetime import datetime, timezone
 
 
 class Configuration:
     def __init__(self, path: str):
         self.path: str = path
+        # config file specific
         self.src: str = None
         self.dst: str = None
         self.plt: str = None
-        self.base_url: str = None
-        self.base_static_url: str = None
+        self.url: str = None
+        self.static_url: str = None
+        self.default_image_url: str = None
         self.title: str = None
         self.dformat: str = None
         self.l_dformat: str = None
         self.lsep_dformat: str = None
         self.force: bool = None
 
+        # other
+        self.version: str = version('pyssg')
+        self.dformat_rss: str = '%a, %d %b %Y %H:%M:%S GMT'
+        self.dformat_sitemap: str = '%Y-%m-%d'
+        self.run_date_rss = datetime.now(tz=timezone.utc).strftime(self.dformat_rss)
+        self.run_date_sitemap = \
+        datetime.now(tz=timezone.utc).strftime(self.dformat_sitemap)
+
 
     def read(self):
         try:
@@ -29,7 +41,7 @@ class Configuration:
                 if len(kv) != 2:
                     raise Exception('wrong config syntax')
 
-                k: str = kv[0].strip()
+                k: str = kv[0].strip().lower()
                 v_temp: str = kv[1].strip()
                 # check if value should be a boolean true
                 v: Union[str, bool] = v_temp\
@@ -39,45 +51,49 @@ class Configuration:
                 opts[k] = v
 
             try:
-                self.src = opts['SRC_PATH']
+                self.src = opts['src']
             except KeyError: pass
 
             try:
-                self.dst = opts['DST_PATH']
+                self.dst = opts['dst']
             except KeyError: pass
 
             try:
-                self.plt = opts['PLT_PATH']
+                self.plt = opts['plt']
             except KeyError: pass
 
             try:
-                self.base_url = opts['BASE_URL']
+                self.url = opts['url']
             except KeyError: pass
 
             try:
-                self.base_static_url = opts['BASE_STATIC_URL']
+                self.static_url = opts['static_url']
             except KeyError: pass
 
             try:
-                self.title = opts['TITLE']
+                self.default_image_url = opts['default_image_url']
             except KeyError: pass
 
             try:
-                self.dformat = opts['DATE_FORMAT']
+                self.title = opts['title']
             except KeyError: pass
 
             try:
-                self.l_dformat = opts['LIST_DATE_FORMAT']
+                self.dformat = opts['date_formaT']
             except KeyError: pass
 
             try:
-                self.lsep_dformat = opts['LIST_SEP_DATE_FORMAT']
+                self.l_dformat = opts['list_date_FORMAT']
+            except KeyError: pass
+
+            try:
+                self.lsep_dformat = opts['list_sep_dATE_FORMAT']
             except KeyError: pass
 
             try:
                 # if the parser above didn't read a boolean true, then take it
                 # as a false anyways
-                self.force = opts['FORCE'] if opts['FORCE'] is True else False
+                self.force = opts['force'] if opts['force'] is True else False
             except KeyError: pass
 
         except OSError: pass
@@ -93,11 +109,14 @@ class Configuration:
         if self.plt is None:
             self.plt = opts['plt']
 
-        if self.base_url is None:
-            self.base_url = opts['url']
+        if self.url is None:
+            self.url = opts['url']
+
+        if self.static_url is None:
+            self.static_url = opts['static_url']
 
-        if self.base_static_url is None:
-            self.base_static_url = opts['static_url']
+        if self.default_image_url is None:
+            self.default_image_url = opts['default_image_url']
 
         if self.title is None:
             self.title = opts['title']
diff --git a/src/pyssg/page.py b/src/pyssg/page.py
index 1e0cdeb..43acb05 100644
--- a/src/pyssg/page.py
+++ b/src/pyssg/page.py
@@ -3,23 +3,21 @@ from datetime import datetime, timezone
 from .configuration import Configuration
 
 
-DFORMAT_RSS = '%a, %d %b %Y %H:%M:%S GMT'
-DFORMAT_SITEMAP = '%Y-%m-%d'
-
-
 class Page:
     def __init__(self,
                  name: str,
                  ctime: float,
                  mtime: float,
                  html: str,
-                 meta: dict):
+                 meta: dict,
+                 config: Configuration):
         # initial data
         self.name: str = name
         self.ctimestamp: float = ctime
         self.mtimestamp: float = mtime
         self.content: str = html
         self.meta: dict = meta
+        self.config: Configuration = config
 
         # data from self.meta
         self.title: str = ''
@@ -32,6 +30,7 @@ class Page:
 
         # constructed
         self.url: str = ''
+        self.image_url: str = ''
         self.cdate: str = ''
         self.cdate_list: str = ''
         self.cdate_list_sep: str = ''
@@ -57,7 +56,7 @@ class Page:
 
     # parses meta from self.meta, for og, it prioritizes,
     # the actual og meta
-    def parse(self, config: Configuration):
+    def parse(self):
         # required meta elements
         self.title = self.meta['title'][0]
         self.author = self.meta['author'][0]
@@ -67,21 +66,23 @@ class Page:
         # dates
         self.cdatetime = datetime.fromtimestamp(self.ctimestamp,
                                                  tz=timezone.utc)
-        self.cdate = self.cdatetime.strftime(config.dformat)
-        self.cdate_list = self.cdatetime.strftime(config.l_dformat)
-        self.cdate_list_sep = self.cdatetime.strftime(config.lsep_dformat)
-        self.cdate_rss = self.cdatetime.strftime(DFORMAT_RSS)
-        self.cdate_sitemap = self.cdatetime.strftime(DFORMAT_SITEMAP)
+        self.cdate = self.cdatetime.strftime(self.config.dformat)
+        self.cdate_list = self.cdatetime.strftime(self.config.l_dformat)
+        self.cdate_list_sep = self.cdatetime.strftime(self.config.lsep_dformat)
+        self.cdate_rss = self.cdatetime.strftime(self.config.dformat_rss)
+        self.cdate_sitemap = \
+        self.cdatetime.strftime(self.config.dformat_sitemap)
 
         # only if file/page has been modified
         if self.mtimestamp != 0.0:
             self.mdatetime = datetime.fromtimestamp(self.mtimestamp,
                                                      tz=timezone.utc)
-            self.mdate = self.mdatetime.strftime(config.dformat)
-            self.mdate_list = self.mdatetime.strftime(config.l_dformat)
-            self.mdate_list_sep = self.mdatetime.strftime(config.lsep_dformat)
-            self.mdate_rss = self.mdatetime.strftime(DFORMAT_RSS)
-            self.mdate_sitemap = self.mdatetime.strftime(DFORMAT_SITEMAP)
+            self.mdate = self.mdatetime.strftime(self.config.dformat)
+            self.mdate_list = self.mdatetime.strftime(self.config.l_dformat)
+            self.mdate_list_sep = self.mdatetime.strftime(self.config.lsep_dformat)
+            self.mdate_rss = self.mdatetime.strftime(self.config.dformat_rss)
+            self.mdate_sitemap = \
+            self.mdatetime.strftime(self.config.dformat_sitemap)
 
         # not always contains tags
         try:
@@ -90,12 +91,19 @@ class Page:
 
             for t in tags_only:
                 self.tags.append((t,
-                                  f'{config.base_url}/tag/@{t}.html'))
+                                  f'{self.config.url}/tag/@{t}.html'))
         except KeyError: pass
 
-        self.url = f'{config.base_url}/{self.name.replace(".md", ".html")}'
+        self.url = f'{self.config.url}/{self.name.replace(".md", ".html")}'
+
+        try:
+            self.image_url = \
+            f'{self.config.base_static_url}/{self.meta["image_url"]}'
+        except KeyError:
+            self.image_url = \
+            f'{self.config.base_static_url}/{self.config.default_image_url}'
 
-        # if contains object graph elements
+        # if contains open graph elements
         try:
             # og_e = object graph entry
             for og_e in self.meta['og']:
diff --git a/src/pyssg/parser.py b/src/pyssg/parser.py
index 7323bde..d75c923 100644
--- a/src/pyssg/parser.py
+++ b/src/pyssg/parser.py
@@ -5,7 +5,6 @@ from markdown import Markdown
 
 from .database import Database
 from .configuration import Configuration
-from .configuration import Configuration
 from .page import Page
 
 
@@ -13,11 +12,13 @@ from .page import Page
 class MDParser:
     def __init__(self, src: str,
                  files: list[str],
+                 config: Configuration,
                  db: Database,
                  md: Markdown):
         self.src: str = src
         self.files: list[str] = files
 
+        self.config: Configuration = config
         self.db: Database = db
         self.md: Markdown = md
 
@@ -26,7 +27,7 @@ class MDParser:
         self.all_tags: list[tuple[str]] = None
 
 
-    def parse(self, config: Configuration):
+    def parse(self) -> None:
         # initialize lists
         self.all_pages = []
         self.updated_pages = []
@@ -43,8 +44,9 @@ class MDParser:
                               self.db.e[f][0],
                               self.db.e[f][1],
                               content,
-                              self.md.Meta)
-            page.parse(config)
+                              self.md.Meta,
+                              self.config)
+            page.parse()
 
             # keep a separated list for all and updated pages
             if updated:
@@ -66,7 +68,6 @@ class MDParser:
         self.updated_pages.sort(reverse=True)
         self.all_pages.sort(reverse=True)
         # TODO: fix this in case it doesn't work lol
-        # this should update references to all_pages and updated_pages???
         for i, p in enumerate(self.all_pages):
             try:
                 prev_page: Page = self.all_pages[i - 1]
diff --git a/src/pyssg/plt/index.html b/src/pyssg/plt/index.html
index c96db3b..e06efdb 100644
--- a/src/pyssg/plt/index.html
+++ b/src/pyssg/plt/index.html
@@ -2,11 +2,11 @@
 <html lang="en">
   <head>
     <meta charset="utf-8">
-    <base href="{{site_base_static_url}}">
-    <title>Index -- {{site_title}}</title>
+    <base href="{{config.static_url}}">
+    <title>Index -- {{config.title}}</title>
   </head>
   <body>
-  <h1>Index -- {{site_title}}</h1>
+  <h1>Index -- {{config.title}}</h1>
   <p>Some text here.</p>
 
   <p>Tags:
diff --git a/src/pyssg/plt/page.html b/src/pyssg/plt/page.html
index fefaaa6..2fc3943 100644
--- a/src/pyssg/plt/page.html
+++ b/src/pyssg/plt/page.html
@@ -2,8 +2,8 @@
 <html lang="{{page.lang}}">
   <head>
     <meta charset="utf-8">
-    <base href="{{site_base_static_url}}">
-    <title>{{page.title}} -- {{site_title}}</title>
+    <base href="{{config.static_url}}">
+    <title>{{page.title}} -- {{config.title}}</title>
   </head>
   <body>
     <h1>{{page.title}}</h1>
diff --git a/src/pyssg/plt/rss.xml b/src/pyssg/plt/rss.xml
index 0426580..42020d7 100644
--- a/src/pyssg/plt/rss.xml
+++ b/src/pyssg/plt/rss.xml
@@ -3,24 +3,24 @@
   xmlns:atom="http://www.w3.org/2005/Atom"
   xmlns:content="http://purl.org/rss/1.0/modules/content/">
   <channel>
-    <title>{{site_title}}</title>
-    <link>{{site_base_url}}</link>
-    <atom:link href="{{site_base_url}}/rss.xml" rel="self" type="application/rss+xml"/>
+    <title>{{config.title}}</title>
+    <link>{{config.url}}</link>
+    <atom:link href="{{config.url}}/rss.xml" rel="self" type="application/rss+xml"/>
     <description>Short site description.</description>
     <language>en-us</language>
     <category>Blog</category>
     <copyright>Copyright 2021 Somebody</copyright>
     <managingEditor>some@one.com (Sombody)</managingEditor>
     <webMaster>some@one.com (Sombody)</webMaster>
-    <pubDate>{{run_date}}</pubDate>
-    <lastBuildDate>{{run_date}}</lastBuildDate>
-    <generator>pyssg v{{pyssg_version}}</generator>
+    <pubDate>{{config.run_date_rss}}</pubDate>
+    <lastBuildDate>{{run_date_rss}}</lastBuildDate>
+    <generator>pyssg v{{config.version}}</generator>
     <docs>https://validator.w3.org/feed/docs/rss2.html</docs>
     <ttl>30</ttl>
     <image>
-      <url>{{site_base_static_url}}/images/blog.png</url>
-      <title>{{site_title}}</title>
-      <link>{{site_base_url}}</link>
+      <url>{{config.static_url}}/images/blog.png</url>
+      <title>{{config.title}}</title>
+      <link>{{config.url}}</link>
     </image>
     {%for p in all_pages%}
     <item>
diff --git a/src/pyssg/plt/sitemap.xml b/src/pyssg/plt/sitemap.xml
index a5b5404..26ee5c1 100644
--- a/src/pyssg/plt/sitemap.xml
+++ b/src/pyssg/plt/sitemap.xml
@@ -14,7 +14,7 @@
   {%for t in all_tags%}
     <url>
       <loc>{{t[1]}}</loc>
-      <lastmod>{{run_date}}</lastmod>
+      <lastmod>{{config.run_date_sitemap}}</lastmod>
       <changefreq>daily</changefreq>
       <priority>0.5</priority>
     </url>
diff --git a/src/pyssg/plt/tag.html b/src/pyssg/plt/tag.html
index 2fdc27b..d856ce4 100644
--- a/src/pyssg/plt/tag.html
+++ b/src/pyssg/plt/tag.html
@@ -2,8 +2,8 @@
 <html lang="en">
   <head>
     <meta charset="utf-8">
-    <base href="{{site_base_static_url}}">
-    <title>Posts filtered by {{tag[0]}} -- {{site_title}}</title>
+    <base href="{{config.static_url}}">
+    <title>Posts filtered by {{tag[0]}} -- {{config.title}}</title>
   </head>
   <body>
   <h1>Posts filtered by {{tag[0]}}</h1>
diff --git a/src/pyssg/pyssg.py b/src/pyssg/pyssg.py
index 76361f5..75f0fe4 100644
--- a/src/pyssg/pyssg.py
+++ b/src/pyssg/pyssg.py
@@ -4,21 +4,16 @@ from argparse import ArgumentParser, Namespace
 from typing import Union
 from jinja2 import Environment, FileSystemLoader
 from markdown import Markdown
-from importlib.metadata import version
 from importlib.resources import path
-from datetime import datetime, timezone
 
 from .configuration import Configuration
 from .database import Database
-from .builder import HTMLBuilder
+from .builder import Builder
 from .page import Page
 from .rss import RSSBuilder
 from .sitemap import SitemapBuilder
 
 
-VERSION = version('pyssg')
-
-
 def get_options() -> Namespace:
     parser = ArgumentParser(prog='pyssg',
                             description='''Static Site Generator that reads
@@ -58,6 +53,10 @@ def get_options() -> Namespace:
                         default='',
                         type=str,
                         help='''base static url without trailing slash''')
+    parser.add_argument('--default-image-url',
+                        default='',
+                        type=str,
+                        help='''default image url''')
     parser.add_argument('--title',
                         default='Blog',
                         type=str,
@@ -107,7 +106,7 @@ def main() -> None:
     config.fill_missing(opts)
 
     if opts['version']:
-        print(f'pyssg v{VERSION}')
+        print(f'pyssg v{config.version}')
         return
 
     if opts['init']:
@@ -147,27 +146,8 @@ def main() -> None:
         md: Markdown = Markdown(extensions=['extra', 'meta', 'sane_lists',
                                             'smarty', 'toc', 'wikilinks'],
                                 output_format='html5')
-        builder: HTMLBuilder = HTMLBuilder(config,
-                                           env,
-                                           db,
-                                           md)
+        builder: Builder = Builder(config, env, db, md)
         builder.build()
 
-        # get all parsed pages and tags for rss and sitemap construction
-        all_pages: list[Page] = builder.all_pages
-        all_tags: list[tuple[str]] = builder.all_tags
-
-        rss_builder: RSSBuilder = RSSBuilder(config,
-                                             env,
-                                             all_pages,
-                                             all_tags)
-        rss_builder.build()
-
-        sm_builder: SitemapBuilder = SitemapBuilder(config,
-                                                    env,
-                                                    all_pages,
-                                                    all_tags)
-        sm_builder.build()
-
         db.write()
         return
diff --git a/src/pyssg/rss.py b/src/pyssg/rss.py
deleted file mode 100644
index 7de29ae..0000000
--- a/src/pyssg/rss.py
+++ /dev/null
@@ -1,38 +0,0 @@
-import os
-from jinja2 import Environment, Template
-from importlib.metadata import version
-from datetime import datetime, timezone
-
-from .page import Page
-from .configuration import Configuration
-
-
-VERSION = version('pyssg')
-# specific format for rss
-DFORMAT = '%a, %d %b %Y %H:%M:%S GMT'
-RUN_DATE = datetime.now(tz=timezone.utc).strftime(DFORMAT)
-
-
-class RSSBuilder:
-    def __init__(self, config: Configuration,
-                 env: Environment,
-                 pages: list[Page],
-                 tags: list[tuple[str]]):
-        self.config: Configuration = config
-        self.env: Environment = env
-        self.pages: list[Page] = pages
-        self.tags: list[tuple[str]] = tags
-
-
-    def build(self):
-        template: Template = self.env.get_template("rss.xml")
-        content: str = template.render(site_title=self.config.title,
-                                       site_base_url=self.config.base_url,
-                                       site_base_static_url=self.config.base_static_url,
-                                       pyssg_version=VERSION,
-                                       run_date=RUN_DATE,
-                                       all_pages=self.pages,
-                                       all_tags=self.tags)
-
-        with open(os.path.join(self.config.dst, 'rss.xml'), 'w') as f:
-            f.write(content)
diff --git a/src/pyssg/sitemap.py b/src/pyssg/sitemap.py
deleted file mode 100644
index f63a7e6..0000000
--- a/src/pyssg/sitemap.py
+++ /dev/null
@@ -1,38 +0,0 @@
-import os
-from jinja2 import Environment, Template
-from importlib.metadata import version
-from datetime import datetime, timezone
-
-from .page import Page
-from .configuration import Configuration
-
-VERSION = version('pyssg')
-# specific format for sitemap (not as strict)
-DFORMAT = '%Y-%m-%d'
-RUN_DATE = datetime.now(tz=timezone.utc).strftime(DFORMAT)
-
-
-class SitemapBuilder:
-    def __init__(self, config: Configuration,
-                 env: Environment,
-                 pages: list[Page],
-                 tags: list[str]):
-        self.config: Configuration = config
-        self.env: Environment = env
-        self.pages: list[Page] = pages
-        self.tags: list[str] = tags
-
-
-    def build(self):
-        template: Template = self.env.get_template("sitemap.xml")
-        content: str = template.render(site_title=self.config.title,
-                                       site_base_url=self.config.base_url,
-                                       site_base_static_url=self.config.base_static_url,
-                                       pyssg_version=VERSION,
-                                       run_date=RUN_DATE,
-                                       all_pages=self.pages,
-                                       all_tags=self.tags)
-
-
-        with open(os.path.join(self.config.dst, 'sitemap.xml'), 'w') as f:
-            f.write(content)
-- 
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