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# -*- coding: utf-8 -*-
# Copyright © 2012-2014 Roberto Alsina and others.
# Permission is hereby granted, free of charge, to any
# person obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the
# Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the
# Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice
# shall be included in all copies or substantial portions of
# the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
# PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
# OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
from __future__ import print_function
import os
import codecs
import json
import shutil
from io import BytesIO
import pygments
from pygments.lexers import PythonLexer
from pygments.formatters import TerminalFormatter
try:
import requests
except ImportError:
requests = None # NOQA
from nikola.plugin_categories import Command
from nikola import utils
LOGGER = utils.get_logger('install_theme', utils.STDERR_HANDLER)
# Stolen from textwrap in Python 3.3.2.
def indent(text, prefix, predicate=None): # NOQA
"""Adds 'prefix' to the beginning of selected lines in 'text'.
If 'predicate' is provided, 'prefix' will only be added to the lines
where 'predicate(line)' is True. If 'predicate' is not provided,
it will default to adding 'prefix' to all non-empty lines that do not
consist solely of whitespace characters.
"""
if predicate is None:
def predicate(line):
return line.strip()
def prefixed_lines():
for line in text.splitlines(True):
yield (prefix + line if predicate(line) else line)
return ''.join(prefixed_lines())
class CommandInstallTheme(Command):
"""Install a theme."""
name = "install_theme"
doc_usage = "[[-u] theme_name] | [[-u] -l]"
doc_purpose = "install theme into current site"
output_dir = 'themes'
cmd_options = [
{
'name': 'list',
'short': 'l',
'long': 'list',
'type': bool,
'default': False,
'help': 'Show list of available themes.'
},
{
'name': 'url',
'short': 'u',
'long': 'url',
'type': str,
'help': "URL for the theme repository (default: "
"http://themes.getnikola.com/v7/themes.json)",
'default': 'http://themes.getnikola.com/v7/themes.json'
},
]
def _execute(self, options, args):
"""Install theme into current site."""
if requests is None:
utils.req_missing(['requests'], 'install themes')
listing = options['list']
url = options['url']
if args:
name = args[0]
else:
name = None
if name is None and not listing:
LOGGER.error("This command needs either a theme name or the -l option.")
return False
data = requests.get(url).text
data = json.loads(data)
if listing:
print("Themes:")
print("-------")
for theme in sorted(data.keys()):
print(theme)
return True
else:
# `name` may be modified by the while loop.
origname = name
installstatus = self.do_install(name, data)
# See if the theme's parent is available. If not, install it
while True:
parent_name = utils.get_parent_theme_name(name)
if parent_name is None:
break
try:
utils.get_theme_path(parent_name)
break
except: # Not available
self.do_install(parent_name, data)
name = parent_name
if installstatus:
LOGGER.notice('Remember to set THEME="{0}" in conf.py to use this theme.'.format(origname))
def do_install(self, name, data):
if name in data:
utils.makedirs(self.output_dir)
LOGGER.info('Downloading: ' + data[name])
zip_file = BytesIO()
zip_file.write(requests.get(data[name]).content)
LOGGER.info('Extracting: {0} into themes'.format(name))
utils.extract_all(zip_file)
dest_path = os.path.join('themes', name)
else:
try:
theme_path = utils.get_theme_path(name)
except:
LOGGER.error("Can't find theme " + name)
return False
utils.makedirs(self.output_dir)
dest_path = os.path.join(self.output_dir, name)
if os.path.exists(dest_path):
LOGGER.error("{0} is already installed".format(name))
return False
LOGGER.info('Copying {0} into themes'.format(theme_path))
shutil.copytree(theme_path, dest_path)
confpypath = os.path.join(dest_path, 'conf.py.sample')
if os.path.exists(confpypath):
LOGGER.notice('This theme has a sample config file. Integrate it with yours in order to make this theme work!')
print('Contents of the conf.py.sample file:\n')
with codecs.open(confpypath, 'rb', 'utf-8') as fh:
if self.site.colorful:
print(indent(pygments.highlight(
fh.read(), PythonLexer(), TerminalFormatter()),
4 * ' '))
else:
print(indent(fh.read(), 4 * ' '))
return True
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