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#!/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
if filename == "requirements.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()
for link in links:
if link[0] == "#" or link[0] == "\n": continue
new_date_str = find_date(link[:-1])
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")
if new_date > old_date or args.force:
print("Downloading: " + link[:-1])
print("Edit date: " + str(new_date))
name = os.path.join(filename[:-4], 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
if new_date != date.fromisoformat("9999-01-01"):
dates[link[:-1]] = new_date
pickle.dump(dates, open(os.path.join("Links", filename[:-4] + ".pickle"), 'wb'))
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