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from __future__ import unicode_literals

import os

import os.path

import shutil

import jsonschema

import pytest

from pre_commit.util import cmd_output

from pre_commit.util import cwd

TESTING_DIR = os.path.abspath(os.path.dirname(__file__))

def get_resource_path(path):

return os.path.join(TESTING_DIR, 'resources', path)

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)

def get_head_sha(dir):

with cwd(dir):

return cmd_output('git', 'rev-parse', 'HEAD')[1].strip()

def is_valid_according_to_schema(obj, schema):

try:

jsonschema.validate(obj, schema)

return True

except jsonschema.exceptions.ValidationError:

return False

skipif_slowtests_false = pytest.mark.skipif(

os.environ.get('slowtests') == 'false',

reason='slowtests=false',

)

xfailif_windows_no_ruby = pytest.mark.xfail(

os.name == 'nt',

reason='Ruby support not yet implemented on windows.',

)

xfailif_windows_no_node = pytest.mark.xfail(

os.name == 'nt',

reason='Node support not yet implemented on windows.',

)

def platform_supports_pcre():

return cmd_output('grep', '-P', '', os.devnull, retcode=None)[0] == 1

xfailif_no_pcre_support = pytest.mark.xfail(

not platform_supports_pcre(),

reason='grep -P is not supported on this platform',

)

xfailif_no_symlink = pytest.mark.xfail(

not hasattr(os, 'symlink'),

reason='Symlink is not supported on this platform',

)

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