330 lines
11 KiB
Python
Executable File
330 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3
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"Creates a static site for redacted.life"
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import argparse
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from collections import UserList
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from datetime import datetime
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import json
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import os
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import os.path as path
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import re
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import subprocess
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import shutil
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import sys
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import jinja2
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import markdown
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from mutagen.mp3 import MP3
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def gen_name(date, slug):
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"Returns to file name"
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return date.strftime("%Y-%m-%d-") + slug
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def seconds_to_str(seconds):
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"Convert seconds to a string of hh:mm:ss"
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seconds = int(seconds)
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return f"{seconds // 3600:02}:{(seconds % 3600) // 60:02}:{seconds % 60:02}"
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class EpisodeList(UserList):
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"Represents list of episodes"
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def __init__(self, url, data, output, template, archives):
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super().__init__(data)
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self.url = url
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self.output = output
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self.template = template
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self.archives = archives
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def sort(self, *_args, **_kwargs):
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"Sorts the EpisodeList"
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super().sort(key=lambda x: x.date, reverse=False)
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def generate_thumbnails(self):
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"Generates thumbnails for all the videos"
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if not path.isdir(self.output + "assets"):
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os.mkdir(self.output + "assets")
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if not path.isdir(self.output + "assets/thumbnails"):
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os.mkdir(self.output + "assets/thumbnails")
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for episode in self.data:
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location = (self.output + "assets/thumbnails/" +
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gen_name(episode.date, episode.slug) + ".jpg")
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episode.store_thumbnail(location)
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def generate_rss(self, header):
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"Generates the RSS Feed"
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with open(self.output + "feed_mp3.rss", "w") as mp3, \
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open(self.output + "feed_ogg.rss", "w") as ogg:
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# pylint: disable = invalid-name
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for s, ext in ((mp3, "mp3"), (ogg, "ogg")):
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s.write(header)
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for ep in self.data:
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s.write("<item>")
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s.write("\n")
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# Title
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s.write(f"<title><![CDATA[{ep.title}]]></title>")
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s.write("\n")
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# Description
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s.write("<description><![CDATA["
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f"{ep.config['description']}]]></description>")
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s.write("\n")
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# Date
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datestring = ep.date.strftime(
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'%a, %d %b, %Y %H:%M:%Sz GMT'
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)
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s.write(f"<pubDate>{datestring}</pubDate>")
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s.write("\n")
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# iTunes: explicit, author, subtitle, keywords
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s.write(f"<itunes:explicit>{ep.config['explicit']}"
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"</itunes:explicit>")
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s.write("\n")
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s.write(
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f"<itunes:author><![CDATA[{ep.config['author']}]]>"
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"</itunes:author>"
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)
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s.write("\n")
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s.write(
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"<itunes:subtitle><![CDATA["
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f"{ep.config['subtitle']}]]></itunes:subtitle>"
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)
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s.write("\n")
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s.write(
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f"<itunes:keywords>{','.join(ep.config['tags'])}"
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"</itunes:keywords>"
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)
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s.write("\n")
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s.write(f"<itunes:duration>{seconds_to_str(len(ep))}"
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"</itunes:duration>")
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s.write("\n")
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# Content (show_notes)
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s.write(
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f"<content:encoded><![CDATA[{ep.show_notes}]]>"
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"</content:encoded>"
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)
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s.write("\n")
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# GUID
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s.write(
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f"<guid isPermaLink=\"true\">{self.url}{ep.slug}"
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".html</guid>"
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)
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s.write("\n")
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# Enclosure
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audio = f'{self.url}assets/music/{ep.slug}.{ext}'
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size = path.getsize(f"{ep.audio}.{ext}")
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s.write(
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f'<enclosure url="{audio}" type="audio/{ext}" '
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f'length="{size}" />'
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)
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s.write("\n")
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# Categories
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for tag in ep.config["tags"]:
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s.write(f"<category><![CDATA[{tag}]]></category>")
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s.write("\n")
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s.write("</item>")
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s.write("\n")
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s.write("</channel>")
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s.write("\n")
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s.write("</rss>")
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def generate_archives(self):
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"Generates archives page"
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with open(self.output + "archives.html", "w") as file:
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episodes = [{
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"slug": gen_name(i.date, i.slug) + ".html",
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"title": i.title
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} for i in self.data[::-1]]
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file.write(self.archives.render(episodes=episodes,
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title="Archives"))
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def generate_site(self, root):
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"Generates the entire site"
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# Generate CSS from SCSS
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subprocess.run(["sass", "--update", f"{root}scss:{root}assets/css"],
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check=True)
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# Copy the existing assets
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shutil.copytree(root + "assets", self.output + "assets",
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dirs_exist_ok=True)
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# Create the required directories
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paths = [
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"assets",
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"assets/audio",
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"assets/videos",
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]
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for directory in paths:
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if not path.isdir(self.output + directory):
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os.mkdir(self.output + directory)
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# Render episodes and copy data
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for episode in self.data:
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html = f"{self.output}{gen_name(episode.date, episode.slug)}.html"
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thumbnail = ("assets/thumbnails/" +
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gen_name(episode.date, episode.slug) + ".jpg")
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video = (self.output + "assets/videos/" +
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gen_name(episode.date, episode.slug) + ".mp4")
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audio = (self.output + "assets/audio/" +
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gen_name(episode.date, episode.slug) + ".mp3")
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shutil.copy2(episode.video, video)
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shutil.copy2(episode.audio + ".mp3", audio)
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shutil.copy2(episode.audio + ".ogg", audio)
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with open(html, "w") as file:
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file.write(episode.render(self.template, thumbnail))
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last = self.data[-1]
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last_name = f"{self.output}{gen_name(last.date, last.slug)}.html"
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shutil.copy2(last_name, self.output + "index.html")
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class Episode:
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"Represents one episode of podcast"
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def __init__(self, date, slug, title, show_notes, video_src, audio_src, config):
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self.date = date
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self.slug = slug
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self.title = title.strip()
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self.show_notes = markdown.markdown(show_notes)
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self.video = video_src
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self.audio = audio_src
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self.config = config
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self.length = MP3(audio_src + ".mp3").info.length
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def render(self, template, thumbnail_src):
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"Renders the Episode with the given template"
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return template.render(
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title=self.title,
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show_notes=jinja2.Markup(self.show_notes),
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thumbnail_src=thumbnail_src,
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video_src=f"assets/videos/{path.basename(self.video)}"
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)
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def store_thumbnail(self, location):
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"Stores the thumbnail for given image at path"
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args = ["ffmpeg", "-i", self.video, "-ss", "00:00:01.000", "-vframes",
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"1", location]
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subprocess.run(args, check=False)
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def __len__(self):
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return int(self.length)
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def parse_args():
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"Parses arguments"
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parser = argparse.ArgumentParser()
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parser.add_argument("input_dir", help="Input directory")
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parser.add_argument("output_dir", help="Output directory")
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parser.add_argument("url", help="Base URL of website")
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args = parser.parse_args()
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input_dir = args.input_dir.rstrip("/") + "/"
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output_dir = args.output_dir.rstrip("/") + "/"
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url = args.url.rstrip("/") + "/"
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return input_dir, output_dir, url
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class ParseError(ValueError):
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"Error raised while parsing a file"
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def parse_file(file, array_keys=("tags")):
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"Parses a file"
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config = {}
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kv_re = re.compile(r"(?P<key>\w+):\s*(?P<value>.*)")
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while line := file.readline():
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if line.rstrip("\n") == "---":
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break
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if line.strip() == "":
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continue
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if match := kv_re.match(line):
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if match.group("key").strip().lower() in array_keys:
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config[match.group("key")] = [i.strip() for i in
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match.group("value").split(",")]
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else:
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config[match.group("key")] = match.group("value")
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else:
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raise ParseError(f"Invalid line {line}")
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return (config, file.read())
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def main(args):
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"Main method"
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root = path.dirname(sys.argv[0]).rstrip("/") + "/"
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input_dir, output_dir, url = args
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# Input validation
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paths = [
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input_dir,
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input_dir + "md",
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input_dir + "videos",
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input_dir + "audio",
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]
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if not all(path.isdir((fail := i)) for i in paths):
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print(f"Invalid Input. {fail} is not a directory.", file=sys.stderr)
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return 1
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if not path.isdir(output_dir):
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os.mkdir(output_dir)
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env = jinja2.Environment(
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loader=jinja2.FileSystemLoader(root),
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autoescape=jinja2.select_autoescape("html")
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)
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podcast = EpisodeList(
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url,
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[],
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output_dir,
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env.get_template("index.html"),
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env.get_template("archives.html")
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)
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split = re.compile(r"((?P<date>\d{4}-[01]?\d-[0123]?\d)-(?P<slug>.*).md)")
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for file in os.listdir(input_dir + "md"):
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match = split.match(file)
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if not match:
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print(f"Invalid filename: {file}", file=sys.stderr)
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continue
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date = datetime.strptime(match.group("date"), "%Y-%M-%d")
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slug = match.group("slug")
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with open(input_dir + "md/" + file) as episode:
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try:
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config, show_notes = parse_file(episode)
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except ParseError as err:
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print(f"Error while parsing file: {file}")
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print(err)
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return 2
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podcast.append(
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Episode(
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date,
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slug,
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config["title"],
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show_notes,
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input_dir + "videos/" + gen_name(date, slug) + ".mp4",
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input_dir + "audio/" + gen_name(date, slug),
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config
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)
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)
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with open(input_dir + "subscribe.json") as subscribe, \
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open(output_dir + "subscribe.html", "w") as html:
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html.write(env.get_template("subscribe.html").render(
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subscribtions=json.load(subscribe)
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))
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with open(input_dir + "donate.json") as donate, \
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open(output_dir + "donate.html", "w") as html:
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html.write(env.get_template("donate.html").render(
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donations=json.load(donate)
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))
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podcast.sort()
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podcast.generate_thumbnails()
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podcast.generate_archives()
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with open(input_dir + "header.rss") as header:
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podcast.generate_rss(header.read())
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podcast.generate_site(root)
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shutil.copytree(input_dir + "overrides", output_dir, dirs_exist_ok=True)
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return 0
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if __name__ == "__main__":
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sys.exit(main(parse_args()))
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