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100 lines
3.1 KiB
100 lines
3.1 KiB
5 years ago
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#!/usr/bin/env python
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# -*- coding: utf-8 -*- #
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# Page Meta-Data
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# ------------------------
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# Insert meta-data about the generated file into the resulting HMTL.
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# Copyright (C) 2019 Roel Roscam Abbing
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#
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# Support your local Low-Tech Magazine:
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# https://solar.lowtechmagazine.com/donate.html
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from __future__ import unicode_literals
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from pelican import signals
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from bs4 import BeautifulSoup
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import os
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def get_printable_size(byte_size):
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"""
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Thanks Pobux!
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https://gist.github.com/Pobux/0c474672b3acd4473d459d3219675ad8
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"""
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BASE_SIZE = 1024.00
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MEASURE = ["B", "KB", "MB", "GB", "TB", "PB"]
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def _fix_size(size, size_index):
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if not size:
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return "0"
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elif size_index == 0:
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return str(size)
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else:
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return "{:.3f}".format(size)
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current_size = byte_size
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size_index = 0
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while current_size >= BASE_SIZE and len(MEASURE) != size_index:
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current_size = current_size / BASE_SIZE
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size_index = size_index + 1
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size = _fix_size(current_size, size_index)
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measure = MEASURE[size_index]
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return size + measure
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def get_media(html_file):
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"""
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Currently only images because I, for one, am lazy.
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"""
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html_file = open(html_file).read()
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soup = BeautifulSoup(html_file, 'html.parser')
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media = []
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for img in soup(['img', 'object']):
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media.append(img['src'])
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media = list(set(media)) # duplicate media don't increase page size
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return media
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def generate_metadata(path, context):
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output_path = context['OUTPUT_PATH']
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output_file = context['output_file']
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media_size = 0
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# enumerate all media displayed on the page
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for m in get_media(path):
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m = os.path.join(output_path, m)
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# filter out SITEURL to prevent trouble
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m = m.replace(context['SITEURL']+'/', '')
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if os.path.exists(m):
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media_size = media_size + os.path.getsize(m)
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current_file = os.path.join(output_path, output_file)
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file_size = os.path.getsize(current_file)
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with open(current_file, 'a') as f:
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file_size = file_size + media_size
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metadata = output_file + ' ' + context['NOW'] + ' ' + get_printable_size(file_size)
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metadata = output_file + ' ' + context['NOW'] + ' ' + get_printable_size(file_size+len(metadata)) # cursed code is cursed
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f.write(metadata)
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# TODO: add a way to nicely insert the meta-data into an element with id
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def register():
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signals.content_written.connect(generate_metadata)
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