iframe-proxy | Sunbelt Computer Software

History

213 lines (172 loc) · 5.73 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

from __future__ import unicode_literals

import contextlib

import errno

import functools

import os.path

import shutil

import stat

import subprocess

import tempfile

import pkg_resources

import six

from pre_commit import five

from pre_commit import parse_shebang

def mkdirp(path):

try:

os.makedirs(path)

except OSError:

if not os.path.exists(path):

raise

def memoize_by_cwd(func):

"""Memoize a function call based on os.getcwd()."""

@functools.wraps(func)

def wrapper(*args):

cwd = os.getcwd()

key = (cwd,) + args

try:

return wrapper._cache[key]

except KeyError:

ret = wrapper._cache[key] = func(*args)

return ret

wrapper._cache = {}

return wrapper

@contextlib.contextmanager

def clean_path_on_failure(path):

"""Cleans up the directory on an exceptional failure."""

try:

yield

except BaseException:

if os.path.exists(path):

rmtree(path)

raise

@contextlib.contextmanager

def noop_context():

yield

def no_git_env():

# Too many bugs dealing with environment variables and GIT:

# https://github.com/pre-commit/pre-commit/issues/300

# In git 2.6.3 (maybe others), git exports GIT_WORK_TREE while running

# pre-commit hooks

# In git 1.9.1 (maybe others), git exports GIT_DIR and GIT_INDEX_FILE

# while running pre-commit hooks in submodules.

# GIT_DIR: Causes git clone to clone wrong thing

# GIT_INDEX_FILE: Causes 'error invalid object ...' during commit

return {

k: v for k, v in os.environ.items()

if not k.startswith('GIT_') or k in {'GIT_SSH'}

}

@contextlib.contextmanager

def tmpdir():

"""Contextmanager to create a temporary directory. It will be cleaned up

afterwards.

"""

tempdir = tempfile.mkdtemp()

try:

yield tempdir

finally:

rmtree(tempdir)

def resource_filename(*segments):

return pkg_resources.resource_filename(

'pre_commit', os.path.join('resources', *segments),

)

def make_executable(filename):

original_mode = os.stat(filename).st_mode

os.chmod(

filename, original_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH,

)

class CalledProcessError(RuntimeError):

def __init__(self, returncode, cmd, expected_returncode, output=None):

super(CalledProcessError, self).__init__(

returncode, cmd, expected_returncode, output,

)

self.returncode = returncode

self.cmd = cmd

self.expected_returncode = expected_returncode

self.output = output

def to_bytes(self):

output = []

for maybe_text in self.output:

if maybe_text:

output.append(

b'\n ' +

five.to_bytes(maybe_text).replace(b'\n', b'\n '),

)

else:

output.append(b'(none)')

return b''.join((

five.to_bytes(

'Command: {!r}\n'

'Return code: {}\n'

'Expected return code: {}\n'.format(

self.cmd, self.returncode, self.expected_returncode,

b'Output: ', output[0], b'\n',

b'Errors: ', output[1], b'\n',

))

def to_text(self):

return self.to_bytes().decode('UTF-8')

if six.PY2: # pragma: no cover (py2)

__str__ = to_bytes

__unicode__ = to_text

else: # pragma: no cover (py3)

__bytes__ = to_bytes

__str__ = to_text

def cmd_output(*cmd, **kwargs):

retcode = kwargs.pop('retcode', 0)

encoding = kwargs.pop('encoding', 'UTF-8')

popen_kwargs = {

'stdin': subprocess.PIPE,

'stdout': subprocess.PIPE,

'stderr': subprocess.PIPE,

}

# py2/py3 on windows are more strict about the types here

cmd = tuple(five.n(arg) for arg in cmd)

kwargs['env'] = {

five.n(key): five.n(value)

for key, value in kwargs.pop('env', {}).items()

} or None

try:

cmd = parse_shebang.normalize_cmd(cmd)

except parse_shebang.ExecutableNotFoundError as e:

returncode, stdout, stderr = e.to_output()

else:

popen_kwargs.update(kwargs)

proc = subprocess.Popen(cmd, **popen_kwargs)

stdout, stderr = proc.communicate()

returncode = proc.returncode

if encoding is not None and stdout is not None:

stdout = stdout.decode(encoding)

if encoding is not None and stderr is not None:

stderr = stderr.decode(encoding)

if retcode is not None and retcode != returncode:

raise CalledProcessError(

returncode, cmd, retcode, output=(stdout, stderr),

)

return returncode, stdout, stderr

def rmtree(path):

"""On windows, rmtree fails for readonly dirs."""

def handle_remove_readonly(func, path, exc): # pragma: no cover (windows)

excvalue = exc[1]

if (

func in (os.rmdir, os.remove, os.unlink) and

excvalue.errno == errno.EACCES

os.chmod(path, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)

func(path)

else:

raise

shutil.rmtree(path, ignore_errors=False, onerror=handle_remove_readonly)

def copy_tree_to_path(src_dir, dest_dir):

"""Copies all of the things inside src_dir to an already existing dest_dir.

This looks eerily similar to shutil.copytree, but copytree has no option

for not creating dest_dir.

"""

names = os.listdir(src_dir)

for name in names:

srcname = os.path.join(src_dir, name)

destname = os.path.join(dest_dir, name)

if os.path.isdir(srcname):

shutil.copytree(srcname, destname)

else:

shutil.copy(srcname, destname)

Sunbelt Computer Software

PL/B Language Development and Support

Navigation Menu

Sunbelt Computer Software

PL/B Language Development and Support

FilesExpand file tree

util.py

Latest commit

History

util.py

File metadata and controls