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tmplit.py
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tmplit.py
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import os
import sys
import fileinput
import argparse
from Cheetah.Template import Template
from Cheetah.Template import NotFound
def ensure_dir_exists(path):
d = os.path.dirname(path)
if not os.path.exists(d):
os.makedirs(d)
def parse_placeholder_values(placeholder_list=None, placeholder_file=None):
if placeholder_list == None:
placeholder_list = list()
if placeholder_file != None and os.path.isfile(placeholder_file):
for line in fileinput.input(placeholder_file):
placeholder_list.append(line)
placeholder_values = dict()
for placeholder in placeholder_list:
if placeholder.find('=') != -1:
key_value = placeholder.split('=', 1)
placeholder_values[key_value[0].strip()] = key_value[1].strip()
return placeholder_values
parser = argparse.ArgumentParser(description="tmplit")
parser.add_argument('--template-dir', action='store', dest='template_dir',
required=True)
parser.add_argument('--output-dir', action='store', dest='output_dir',
required=True)
parser.add_argument('--placeholder-file', action='store',
dest='placeholder_file')
parser.add_argument('--placeholders', '-p', action='store',
dest='placeholders', nargs='+', help="Provide a space"
" separated list of <placeholder>=<value> pairs.")
arguments = parser.parse_args()
template_dir = arguments.template_dir
output_dir = arguments.output_dir
placeholders = parse_placeholder_values(arguments.placeholders,
arguments.placeholder_file)
for root, sub_folders, files in os.walk(template_dir):
for template_file in files:
path_to_template = os.path.join(root, template_file)
with open(path_to_template, 'r') as template:
t = Template(file=template, searchList=placeholders)
print 'Processing: {}'.format(path_to_template)
try:
filled = str(t)
except NotFound as e:
print "Error while parsing: {}, {}".format(path_to_template, e)
sys.exit(1)
output_path = os.path.join(output_dir, os.path.relpath(path_to_template,
template_dir))
ensure_dir_exists(output_path)
with open(output_path, 'w+') as output:
output.write(filled)