Astronomy/mkbinder.py

85 lines
2.7 KiB
Python
Executable file

#!/usr/bin/env python3
import pdfkit
import weasyprint
import re
import os
import argparse
import pickle
from htmldate import find_date
from datetime import date
# CLI arguments
parser = argparse.ArgumentParser()
parser.add_argument('--backend', '-b', dest = 'backend', help = 'change the download backend; default: pdfkit', default = 'pdfkit', choices = ['pdfkit', 'weasyprint'])
parser.add_argument('--force', '-f', dest = 'force', help = 'force download all links instead of only the ones that need to be updated; default: False', default = False, choices = [False, True])
args = parser.parse_args()
for filename in os.listdir('Links'):
if not filename.endswith('.txt'): continue
print('Examining: ' + filename)
try:
os.mkdir(filename[:-4])
except: # I love bad error handling
pass
try:
dates = pickle.load(open(os.path.join('Links', filename[:-4] + '.pickle'), 'rb'))
except:
dates = {}
file = open(os.path.join('Links', filename), 'r')
links = file.readlines()
section = ''
for link in links:
if link[0:2] == '# ':
section = link[2:]
if link[0] == '#' or link[0] == '\n':
continue
try:
new_date_str = find_date(link[:-1])
except:
pass
if new_date_str == None:
new_date = date.fromisoformat('9999-01-01')
else:
new_date = date.fromisoformat(new_date_str)
try:
old_date = dates[link[:-1]]
except:
old_date = date.fromisoformat('1970-01-01')
# Time to print!
if new_date > old_date or args.force:
print('Downloading: ' + link[:-1])
print('Edit date: ' + str(new_date))
name = os.path.join(filename[:-4], section + ' - ' + re.sub(r'(?u)[^-\w.]', '', link[5:]) + '.pdf')
# name = re.sub(r'(?u)[^-\w.]', '', link[5:]) + '.pdf'
# print(name)
try:
# weasyprint seems faster?
# but seems to be broken sometimes???
if args.backend == 'pdfkit':
pdfkit.from_url(link, name)
else:
pdf = weasyprint.HTML(link).write_pdf()
open(name, 'wb').write(pdf)
except: # Maybe should handle errors a little bit better?
print('Error when printing')
pass
# Update date
if new_date != date.fromisoformat('9999-01-01'):
dates[link[:-1]] = new_date
# Dump dates to a pickle
pickle.dump(dates, open(os.path.join('Links', filename[:-4] + '.pickle'), 'wb'))