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#!/usr/bin/env python3
# coding: utf-8
#
# Copyright (C) 2017, 2018, 2019 GNUnet e.V.
#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved. This file is offered as-is,
# without any warranty.
#
# ----
#
# This script runs the jinja2 templating engine on an input template-file
# using the specified locale for gettext translations, and outputs
# the resulting (HTML) ouptut-file.
#
# Note that the gettext files need to be prepared first. This script
# is thus to be invoked via the Makefile.
#
# We import unicode_literals until people have understood how unicode
# with bytes and strings changed in python2->python3.
# from __future__ import unicode_literals
import os
import os.path
import sys
import re
import gettext
import glob
import codecs
import jinja2
import i18nfix
from pathlib import Path
import hashlib
from bs4 import BeautifulSoup
from ruamel.yaml import YAML
# TODO: Turn repetition into a class.
env = jinja2.Environment(loader=jinja2.FileSystemLoader(
os.path.dirname(__file__)),
extensions=["jinja2.ext.i18n"],
lstrip_blocks=True,
trim_blocks=True,
undefined=jinja2.StrictUndefined,
autoescape=False)
def localized(filename, locale, *args):
if len(args) == 0:
return "../" + locale + "/" + filename
ext = kwargs.get('ext', None)
if ext is not None:
lf = filename + "." + locale + "." + ext
lp = Path(lf)
if locale == "en" or not lp.is_file():
return "../" + filename + "." + ext
else:
return "../" + lf
def fileop(infile, outfile, action):
"""
infile: inputfile, Path object
outfile: outputfile, Path object
action: action if any, String
"""
i = Path(infile)
o = Path(outfile)
outdir = Path("rendered")
if i.is_file() is not False:
if action == "copy":
# Write content of i to o.
o.write_text(i.read_text())
if action == "link":
o.symlink_to(i)
def write_name(filename, infile, locale, replacer):
return "./rendered/" + locale + "/" + infile.replace(replacer,
'').rstrip(".j2")
def sha256sum(_):
sha256 = hashlib.sha256()
with io.open(_, mode="rb") as fd:
content = fd.read()
sha256.update(content)
return sha256.hexdigest()
def walksum(_):
sha256 = hashlib.sha256()
x = Path(_)
if not x.exists():
return -1
try:
for root, directories, files in os.walk(_):
for names in sorted(files):
filepath = os.path.join(root, names)
try:
fl = open(filepath, 'rb')
except:
fl.close()
continue
while 1:
buf = fl.read(4096)
if not buf:
break
sha256.update(hashlib.sha256(buf).hexdigest())
fl.close()
except:
import traceback
traceback.print_exc()
return -2
return sha256.hexdigest()
def rm_rf(directory):
directory = Path(directory)
for child in directory.glob('*'):
if child.is_file():
child.unlink()
else:
rm_rf(child)
directory.rmdir()
# This generates and switches sites generations, preventing
# in-place modification of the website.
# * save old generation directory name
# * jinja2 creates content in "rendered" (happened before calling this function)
# * calculate sum of "rendered"
# * move "rendered" to out/$sum
# * remove symlink "html_dir"
# * symlink out/$sum to "html_dir"
# * delete old generation directory
def generation_dir(htmldir):
oldgen = Path(htmldir).resolve()
# precondition: jinja2 has created the files in "rendered".
newgen = Path("rendered")
newgen_sum = walksum(newgen)
outdir = Path("out")
outdir.mkdir(parents=True, exist_ok=True)
newgen_target = Path("out") / newgen_sum
newgen.rename(newgen_target)
html = Path(htmldir)
html.unlink()
fileop(newgen, html, "link")
rm_rf(oldgen)
def copy_static(locale, indict):
for key, value in indict.items():
print(locale + "/" + key + " ...to... " + locale + "/" + value)
def preview_text(filename):
with open(filename) as html:
# html = open(filename).read()
soup = BeautifulSoup(html, features="lxml")
for script in soup(["script", "style"]):
script.extract()
k = []
# for i in soup.findAll('p')[1:3]:
for i in soup.findAll('p')[1]:
k.append(i)
b = ''.join(str(e) for e in k)
text = b.replace("\n", "")
textreduced = (text[:1000] + '...') if len(text) > 1000 else (text + '..')
return(textreduced)
def abstract_news(filename):
return preview_text("news/" + filename + ".j2")
def generate_site(root, conf):
for in_file in glob.glob(root + "/*.j2"):
name, ext = re.match(r"(.*)\.([^.]+)$", in_file.rstrip(".j2")).groups()
tmpl = env.get_template(in_file)
def self_localized(other_locale):
"""
Return URL for the current page in another locale.
"""
return "../" + other_locale + "/" + in_file.replace(
root + '/', '').rstrip(".j2")
def url_localized(filename):
if root == "news":
return "../../" + locale + "/" + filename
else:
return "../" + locale + "/" + filename
def url_static(filename):
if root == "news":
return "../../static/" + filename
else:
return "../static/" + filename
def url_dist(filename):
if root == "news":
return "../../dist/" + filename
else:
return "../dist/" + filename
def svg_localized(filename):
lf = filename + "." + locale + ".svg"
if locale == "en" or not os.path.isfile(lf):
return "../" + filename + ".svg"
else:
return "../" + lf
def url(x):
# TODO: look at the app root environment variable
# TODO: check if file exists
#if root == "news":
# return "../" + "../" + x
#else:
# return "../" + x
return "../" + x
for l in glob.glob("locale/*/"):
locale = os.path.basename(l[:-1])
tr = gettext.translation("messages",
localedir="locale",
languages=[locale])
tr.gettext = i18nfix.wrap_gettext(tr.gettext)
env.install_gettext_translations(tr, newstyle=True)
content = tmpl.render(lang=locale,
lang_full=conf["langs_full"][locale],
url=url,
meetingnotesdata=conf["meetingnotes"],
newsdata=conf["newsposts"],
videosdata=conf["videoslist"],
self_localized=self_localized,
url_localized=url_localized,
url_static=url_static,
url_dist=url_dist,
svg_localized=svg_localized,
filename=name + "." + ext)
if root == "news":
out_name = "./rendered/" + locale + "/" + root + "/" + in_file.replace(
root + '/', '').rstrip(".j2")
else:
out_name = "./rendered/" + locale + "/" + in_file.replace(
root + '/', '').rstrip(".j2")
outdir = Path("rendered")
if root == "news":
langdir = outdir / locale / root
else:
langdir = outdir / locale
langdir.mkdir(parents=True, exist_ok=True)
with codecs.open(out_name, "w", encoding='utf-8') as f:
f.write(content)
def main():
# rm_rf("rendered")
yaml=YAML(typ='safe')
site_configfile=Path("www.yml")
conf=yaml.load(site_configfile)
for item in conf["newsposts"]:
item['abstract'] = abstract_news(item['page'])
print("generating template")
generate_site("template", conf)
print("generating news")
generate_site("news", conf)
# for l in glob.glob("locale/*/"):
# locale = os.path.basename(l[:-1])
# copy_static (locale, staticfiles)
# generate_rss
#print("running generation")
#generation_dir
if __name__ == "__main__":
main()
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