esphome/esphomeyaml/helpers.py
Otto Winter 17ec2bb905
Update
2018-11-19 22:12:24 +01:00

74 lines
1.9 KiB
Python

from __future__ import print_function
import errno
import logging
import os
import subprocess
_LOGGER = logging.getLogger(__name__)
def ensure_unique_string(preferred_string, current_strings):
test_string = preferred_string
current_strings_set = set(current_strings)
tries = 1
while test_string in current_strings_set:
tries += 1
test_string = u"{}_{}".format(preferred_string, tries)
return test_string
def indent_all_but_first_and_last(text, padding=u' '):
lines = text.splitlines(True)
if len(lines) <= 2:
return text
return lines[0] + u''.join(padding + line for line in lines[1:-1]) + lines[-1]
def indent_list(text, padding=u' '):
return [padding + line for line in text.splitlines()]
def indent(text, padding=u' '):
return u'\n'.join(indent_list(text, padding))
# From https://stackoverflow.com/a/14945195/8924614
def cpp_string_escape(string, encoding='utf-8'):
if isinstance(string, unicode):
string = string.encode(encoding)
result = ''
for character in string:
if not (32 <= ord(character) < 127) or character in ('\\', '"'):
result += '\\%03o' % ord(character)
else:
result += character
return '"' + result + '"'
def color(the_color, message='', reset=None):
"""Color helper."""
from colorlog.escape_codes import escape_codes, parse_colors
if not message:
return parse_colors(the_color)
return parse_colors(the_color) + message + escape_codes[reset or 'reset']
def run_system_command(*args):
p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
rc = p.returncode
return rc, stdout, stderr
def mkdir_p(path):
try:
os.makedirs(path)
except OSError as exc:
if exc.errno == errno.EEXIST and os.path.isdir(path):
pass
else:
raise