icingaweb2/bin/license_writer.py

292 lines
8.7 KiB
Python
Executable File

#!/usr/bin/python
# Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+
import sys
import logging
import optparse
import re
import os
import shutil
import time
from cStringIO import StringIO
MAX_LINE_LENGTH = 80
FILE_TYPE_CONFIG = {
'php': {'prefix': ' * ',
'firstComment': '/**',
'lastComment': ' */',
'linesBefore': 0,
'linesAfter': 0},
'js': {'prefix': ' * ',
'firstComment': '/**',
'lastComment': ' */',
'linesBefore': 0,
'linesAfter': 0},
'py': {'prefix': '# ',
'firstComment': None,
'lastComment': None,
'linesBefore': 0,
'linesAfter': 0},
'less': {'prefix': ' * ',
'firstComment': '/**',
'lastComment': ' */',
'linesBefore': 0,
'linesAfter': 0}
}
REPLACE_TOKENS = {
'YEAR': time.strftime('%Y')
}
SECTION_MARKER = re.compile(r'\{\{\{ICINGA_LICENSE_HEADER\}\}\}')
LICENSE_DATA = None
__version__ = '1.0'
__LICENSE_STORE = {}
__SUFFIX_MATCHER = None
class LogFormatter(logging.Formatter):
"""Log formatter with color support which is enabled automaticallyby importing it."""
def __init__(self, *args, **kwargs):
logging.Formatter.__init__(self, *args, **kwargs)
self._color = sys.stderr.isatty()
if self._color:
self._colors = {
logging.DEBUG: ('\x1b[34m',), # Blue
logging.INFO: ('\x1b[32m',), # Green
logging.WARNING: ('\x1b[33m',), # Yellow
logging.ERROR: ('\x1b[31m',), # Red
logging.CRITICAL: ('\x1b[1m', '\x1b[31m'), # Bold, Red
}
self._footer = '\x1b[0m'
def format(self, record):
formatted_message = logging.Formatter.format(self, record)
if self._color:
formatted_message = (''.join(self._colors.get(record.levelno)) + formatted_message +
len(self._colors.get(record.levelno)) * self._footer)
return formatted_message
def add_optparse_logging_options(parser, default_loglevel='DEBUG'):
"""Add log levels to option parser"""
LOGLEVELS = ('INFO', 'WARNING', 'ERROR', 'CRITICAL', 'DEBUG')
parser.add_option('-v', '--verbose', dest='logging_level', default=default_loglevel, choices=LOGLEVELS,
help="Print verbose informational messages. One of %s. [default: %%default]" % ', '.join(
LOGLEVELS))
def init_logging(loglevel):
"""Initialize loglevels"""
channel = logging.StreamHandler()
channel.setFormatter(LogFormatter(fmt='%(asctime)-15s: %(message)s', datefmt='%Y-%m-%d %H:%M:%S'))
logging.getLogger().addHandler(channel)
logging.getLogger().setLevel(getattr(logging, loglevel))
return logging.getLogger(__name__)
def init_optparse():
"""Initialize opt parser"""
parser = optparse.OptionParser(usage='%prog -d <DIR> -L <license> -B <suffix>', version='%%prog %s' % __version__)
parser.add_option("-d", "--directory", action="append", type="string", dest="dir",
help="Directory, multiple switches possible")
parser.add_option("-L", "--license", action="store", type="string", dest="license",
help="Path to license file")
parser.add_option("-B", "--backup", action="store", type="string", dest="backup",
help="Backup suffix, e.g. '.BAK'")
add_optparse_logging_options(parser)
return parser
def match_file_suffix(file_name):
"""Test if er have configuration for this file"""
global __SUFFIX_MATCHER
if __SUFFIX_MATCHER == None:
keys = FILE_TYPE_CONFIG.keys()
match = r'\.(' + '|'.join(keys) + r')$'
__SUFFIX_MATCHER = re.compile(match)
return __SUFFIX_MATCHER.search(file_name)
def load_files(dirs):
"""Load all files found into an array"""
filelist = []
for directory in dirs:
for root, subFolders, files in os.walk(directory):
for file_name in files:
if match_file_suffix(file_name):
filelist.append(os.path.join(root, file_name))
return filelist
def count_regex_matches(pattern, string):
"""Counting regex matchings, e.g. tokens in a file"""
total = 0
start = 0
while True:
match_object = pattern.search(string, start)
if match_object is None:
return total
total += 1
start = match_object.start() + 1
def test_license_token(data, file_name):
"""Test if we have a valid license token in a file"""
global SECTION_MARKER
c = count_regex_matches(SECTION_MARKER, data)
log = logging.getLogger(__name__)
if c == 2:
return True
elif c == 0:
log.warn('No license token in file %s', file_name)
elif c < 2:
log.error('Incomplete license token in file %s', file_name)
else:
log.error('More that one license token in file %s', file_name)
return False
def get_license(type):
"""Creates license data for a specific configuration"""
global FILE_TYPE_CONFIG
global LICENSE_DATA
global REPLACE_TOKENS
global __LICENSE_STORE
try:
return __LICENSE_STORE[type]
except(KeyError):
if not LICENSE_DATA:
__LICENSE_STORE[type] = ''
return ''
config = FILE_TYPE_CONFIG[type]
license_data = []
license_data.extend([''] * config['linesBefore'])
if config['firstComment'] != None:
license_data.append(config['firstComment'])
for line in LICENSE_DATA.split('\n'):
if line:
license_data.append(config['prefix'] + line)
else:
# Whitespace is uselses in this case (#4603)
license_data.append(config['prefix'].rstrip())
if config['lastComment'] != None:
license_data.append(config['lastComment'])
license_data.extend([''] * config['linesAfter'])
__LICENSE_STORE[type] = '\n'.join(license_data)
__LICENSE_STORE[type] = __LICENSE_STORE[type] % REPLACE_TOKENS
return __LICENSE_STORE[type]
def read_file_content(file_name):
"""Read file into a string"""
fhandle = open(file_name, 'r')
content = fhandle.read()
fhandle.close
return content
def write_file_content(file_name, content):
"""Write a string into a file"""
fhandle = open(file_name, 'w')
fhandle.write(content)
fhandle.close()
def replace_text(org_data, license_data):
"""Replace the license token in the string"""
shandle = StringIO(org_data)
out = ''
test = False
while True:
line = shandle.readline()
if line == '':
break
if SECTION_MARKER.search(line) and test == False:
test = True
elif SECTION_MARKER.search(line) and test == True:
test = False
if license_data:
out += license_data
out += '\n'
elif test == True:
continue
out += line
shandle.close()
return out
def process_files(files, backup):
"""Iterate over files and trigger reokacement"""
global FILE_TYPE_CONFIG
log = logging.getLogger(__name__)
for file_name in files:
data = read_file_content(file_name)
if test_license_token(data, file_name):
base, ext = os.path.splitext(file_name)
ext = ext[1:]
try:
config = FILE_TYPE_CONFIG[ext]
license_data = get_license(ext)
new_data = replace_text(data, license_data)
if data != new_data:
log.info('File changed: %s', file_name)
if backup:
newfile = file_name + backup
log.info('Backup %s to %s', file_name, newfile)
shutil.copy(file_name, newfile)
write_file_content(file_name, new_data)
log.info('Written to file: %s', file_name)
except (KeyError):
log.error('No header config for file type %s', ext)
continue
def main():
"""Main script entry point"""
global LICENSE_DATA
parser = init_optparse()
(options, args) = parser.parse_args()
log = init_logging(options.logging_level)
if options.dir is None or not len(options.dir) or not options.license:
log.error('--dir and --license are mandatory')
parser.print_help()
return (1)
log.debug('starting')
LICENSE_DATA = read_file_content(options.license)
log.info('Scanning directories ...')
files = load_files(options.dir)
log.info('Got %d matching ones', len(files))
log.info('Processing files ...')
process_files(files, options.backup)
if __name__ == '__main__':
sys.exit(main())