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# mako/cmd.py
# Copyright (C) 2006-2016 the Mako authors and contributors <see AUTHORS file>
#
# This module is part of Mako and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
from argparse import ArgumentParser
from os.path import isfile, dirname
import sys
from mako.template import Template
from mako.lookup import TemplateLookup
from mako import exceptions
def varsplit(var):
if "=" not in var:
return (var, "")
return var.split("=", 1)
def _exit():
sys.stderr.write(exceptions.text_error_template().render())
sys.exit(1)
def cmdline(argv=None):
parser = ArgumentParser("usage: %prog [FILENAME]")
parser.add_argument(
"--var", default=[], action="append",
help="variable (can be used multiple times, use name=value)")
parser.add_argument(
"--template-dir", default=[], action="append",
help="Directory to use for template lookup (multiple "
"directories may be provided). If not given then if the "
"template is read from stdin, the value defaults to be "
"the current directory, otherwise it defaults to be the "
"parent directory of the file provided.")
parser.add_argument(
"--output-encoding", default=None,
help="force output encoding")
parser.add_argument('input', nargs='?', default='-')
options = parser.parse_args(argv)
output_encoding = options.output_encoding
if options.input == '-':
lookup_dirs = options.template_dir or ["."]
lookup = TemplateLookup(lookup_dirs)
try:
template = Template(sys.stdin.read(), lookup=lookup, output_encoding=output_encoding)
except:
_exit()
else:
filename = options.input
if not isfile(filename):
raise SystemExit("error: can't find %s" % filename)
lookup_dirs = options.template_dir or [dirname(filename)]
lookup = TemplateLookup(lookup_dirs)
try:
template = Template(filename=filename, lookup=lookup, output_encoding=output_encoding)
except:
_exit()
kw = dict([varsplit(var) for var in options.var])
try:
sys.stdout.write(template.render(**kw))
except:
_exit()
if __name__ == "__main__":
cmdline()
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