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#!/usr/bin/env python
import io
import glob
import sys
import os
import re
import json
import shutil
import colorama
import jinja2
dumb_replacements = [
["{% if any(post.is_mathjax for post in posts) %}", '{% if posts|selectattr("is_mathjax")|list %}'],
["json.dumps(title)", "title|tojson"],
["{{ parent.extra_head() }}", "{{ super() }}"],
["{{ parent.content() }}", "{{ super() }}"],
["prefix='\\", "prefix='"],
["og: http://ogp.me/ns# \\", "og: http://ogp.me/ns#"],
["article: http://ogp.me/ns/article# \\", "article: http://ogp.me/ns/article#"],
["fb: http://ogp.me/ns/fb# \\", "fb: http://ogp.me/ns/fb#"],
['dir="rtl" \\', 'dir="rtl"'],
['sorted(translations)', 'translations|sort'],
]
dumber_replacements = [
['<%! import json %>\n\n', ''],
["<html\n\\", "<html\n"],
["\n'\\\n", "\n'\n"],
["{% endif %}\n\\", "{% endif %}\n"]
]
def jinjify(in_theme, out_theme):
"""Convert in_theme into a jinja version and put it in out_theme"""
in_templates_path = os.path.join(in_theme, "templates")
out_templates_path = os.path.join(out_theme, "templates")
try:
os.makedirs(out_templates_path)
except:
pass
lookup = jinja2.Environment()
lookup.filters['tojson'] = json.dumps
lookup.loader = jinja2.FileSystemLoader([out_templates_path], encoding='utf-8')
for template in glob.glob(os.path.join(in_templates_path, "*.tmpl")):
out_template = os.path.join(out_templates_path, os.path.basename(template))
with io.open(template, "r", encoding="utf-8") as inf:
data = mako2jinja(inf)
lines = []
for line in data.splitlines():
for repl in dumb_replacements:
line = line.replace(*repl)
lines.append(line)
data = '\n'.join(lines)
for repl in dumber_replacements:
data = data.replace(*repl)
with io.open(out_template, "w+", encoding="utf-8") as outf:
outf.write(data + '\n')
# Syntax check output
source, filename = lookup.loader.get_source(lookup, os.path.basename(template))[:2]
try:
lookup.parse(source)
except Exception as e:
error("Syntax error in {0}:{1}".format(out_template, e.lineno))
parent = os.path.basename(in_theme.rstrip('/'))
child = os.path.basename(out_theme.rstrip('/'))
mappings = {
'base-jinja': 'base',
'bootstrap3-jinja': 'base-jinja',
}
if child in mappings:
parent = mappings[child]
with io.open(os.path.join(out_theme, "parent"), "w+", encoding='utf-8') as outf:
outf.write(u'{0}\n'.format(parent))
with io.open(os.path.join(out_theme, "engine"), "w+", encoding='utf-8') as outf:
outf.write(u"jinja\n")
# Copy assets in bootstrap/bootstrap3
if child == 'bootstrap3-jinja':
shutil.rmtree(os.path.join(out_theme, "assets"))
shutil.copytree(
os.path.join(in_theme, "assets"), os.path.join(out_theme, "assets"),
symlinks=True)
# Copy bundles
# shutil.copy(os.path.join(in_theme, "bundles"), os.path.join(out_theme, "bundles"))
# Copy README
if os.path.isfile(os.path.join(in_theme, "README.md")):
shutil.copy(os.path.join(in_theme, "README.md"), os.path.join(out_theme, "README.md"))
def error(msg):
print(colorama.Fore.RED + "ERROR:" + msg)
def mako2jinja(input_file):
output = ''
# TODO: OMG, this code is so horrible. Look at it; just look at it:
macro_start = re.compile(r'(.*)<%.*def name="(.*?)".*>(.*)', re.IGNORECASE)
macro_end = re.compile(r'(.*)</%def>(.*)', re.IGNORECASE)
if_start = re.compile(r'(.*)% *if (.*):(.*)', re.IGNORECASE)
if_else = re.compile(r'(.*)% *else.*:(.*)', re.IGNORECASE)
if_elif = re.compile(r'(.*)% *elif (.*):(.*)', re.IGNORECASE)
if_end = re.compile(r'(.*)% *endif(.*)', re.IGNORECASE)
for_start = re.compile(r'(.*)% *for (.*):(.*)', re.IGNORECASE)
for_end = re.compile(r'(.*)% *endfor(.*)', re.IGNORECASE)
namespace = re.compile(r'(.*)<% *namespace name="(.*?)".* file="(.*?)".*/>(.*)', re.IGNORECASE)
inherit = re.compile(r'(.*)<% *inherit file="(.*?)".*/>(.*)', re.IGNORECASE)
block_single_line = re.compile(r'(.*)<% *block.*name="(.*?)".*>(.*)</% *block>(.*)', re.IGNORECASE)
block_start = re.compile(r'(.*)<% *block.*name="(.*?)".*>(.*)', re.IGNORECASE)
block_end = re.compile(r'(.*)</%block>(.*)', re.IGNORECASE)
val = re.compile(r'\$\{(.*?)\}', re.IGNORECASE)
func_len = re.compile(r'len\((.*?)\)', re.IGNORECASE)
filter_h = re.compile(r'\|h', re.IGNORECASE)
filter_striphtml = re.compile(r'\|striphtml', re.IGNORECASE)
filter_u = re.compile(r'\|u', re.IGNORECASE)
comment_single_line = re.compile(r'^.*##(.*?)$', re.IGNORECASE)
for line in input_file:
# Process line for repeated inline replacements
m_val = val.search(line)
m_func_len = func_len.search(line)
m_filter_h = filter_h.search(line)
m_filter_striphtml = filter_striphtml.search(line)
m_filter_u = filter_u.search(line)
if m_val:
line = val.sub(r'{{ \1 }}', line)
if m_filter_h:
line = filter_h.sub(r'|e', line)
if m_filter_striphtml:
line = filter_striphtml.sub(r'|e', line)
if m_filter_u:
line = filter_u.sub(r'|urlencode', line)
if m_func_len:
line = func_len.sub(r'\1|length', line)
# Process line for single 'whole line' replacements
m_macro_start = macro_start.search(line)
m_macro_end = macro_end.search(line)
m_if_start = if_start.search(line)
m_if_else = if_else.search(line)
m_if_elif = if_elif.search(line)
m_if_end = if_end.search(line)
m_for_start = for_start.search(line)
m_for_end = for_end.search(line)
m_namspace = namespace.search(line)
m_inherit = inherit.search(line)
m_block_single_line = block_single_line.search(line)
m_block_start = block_start.search(line)
m_block_end = block_end.search(line)
m_comment_single_line = comment_single_line.search(line)
if m_comment_single_line:
output += m_comment_single_line.expand(r'{# \1 #}') + '\n'
elif m_macro_start:
output += m_macro_start.expand(r'\1{% macro \2 %}\3') + '\n'
elif m_macro_end:
output += m_macro_end.expand(r'\1{% endmacro %}\1') + '\n'
elif m_if_start:
output += m_if_start.expand(r'\1{% if \2 %}\3') + '\n'
elif m_if_else:
output += m_if_else.expand(r'\1{% else %}\2') + '\n'
elif m_if_elif:
output += m_if_elif.expand(r'\1{% elif \2 %}\3') + '\n'
elif m_if_end:
output += m_if_end.expand(r'\1{% endif %}\2') + '\n'
elif m_for_start:
output += m_for_start.expand(r'\1{% for \2 %}\3') + '\n'
elif m_for_end:
output += m_for_end.expand(r'\1{% endfor %}\2') + '\n'
elif m_namspace:
output += m_namspace.expand(r"\1{% import '\3' as \2 with context %}\4") + '\n'
elif m_inherit:
output += m_inherit.expand(r"{% extends '\2' %}\3") + '\n'
elif m_block_single_line:
output += m_block_single_line.expand(r'\1{% block \2 %}\3{% endblock %}\4') + '\n'
elif m_block_start:
output += m_block_start.expand(r'\1{% block \2 %}\3') + '\n'
elif m_block_end:
output += m_block_end.expand(r'\1{% endblock %}\2') + '\n'
else:
# Doesn't match anything we're going to process, pass though
output += line
return output
if __name__ == "__main__":
if len(sys.argv) == 1:
print('Performing standard conversions:')
for m, j in (
('nikola/data/themes/base', 'nikola/data/themes/base-jinja'),
('nikola/data/themes/bootstrap3', 'nikola/data/themes/bootstrap3-jinja')
):
print(' {0} -> {1}'.format(m, j))
jinjify(m, j)
elif len(sys.argv) != 3:
print('ERROR: needs input and output directory, or no arguments for default conversions.')
else:
jinjify(sys.argv[1], sys.argv[2])
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