1# -*- coding: utf-8 -*-
2
3#-------------------------------------------------------------------------
4# drawElements Quality Program utilities
5# --------------------------------------
6#
7# Copyright 2015 The Android Open Source Project
8#
9# Licensed under the Apache License, Version 2.0 (the "License");
10# you may not use this file except in compliance with the License.
11# You may obtain a copy of the License at
12#
13#      http://www.apache.org/licenses/LICENSE-2.0
14#
15# Unless required by applicable law or agreed to in writing, software
16# distributed under the License is distributed on an "AS IS" BASIS,
17# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18# See the License for the specific language governing permissions and
19# limitations under the License.
20#
21#-------------------------------------------------------------------------
22
23import os
24import shlex
25import subprocess
26
27DEQP_DIR = os.path.realpath(os.path.normpath(os.path.join(os.path.dirname(__file__), "..", "..")))
28
29def die (msg):
30	print msg
31	exit(-1)
32
33def shellquote(s):
34	return '"%s"' % s.replace('\\', '\\\\').replace('"', '\"').replace('$', '\$').replace('`', '\`')
35
36g_workDirStack = []
37
38def pushWorkingDir (path):
39	oldDir = os.getcwd()
40	os.chdir(path)
41	g_workDirStack.append(oldDir)
42
43def popWorkingDir ():
44	assert len(g_workDirStack) > 0
45	newDir = g_workDirStack[-1]
46	g_workDirStack.pop()
47	os.chdir(newDir)
48
49def execute (args):
50	retcode	= subprocess.call(args)
51	if retcode != 0:
52		raise Exception("Failed to execute '%s', got %d" % (str(args), retcode))
53
54def readFile (filename):
55	f = open(filename, 'rb')
56	data = f.read()
57	f.close()
58	return data
59
60def writeFile (filename, data):
61	f = open(filename, 'wb')
62	f.write(data)
63	f.close()
64
65def which (binName):
66	for path in os.environ['PATH'].split(os.pathsep):
67		path = path.strip('"')
68		fullPath = os.path.join(path, binName)
69		if os.path.isfile(fullPath) and os.access(fullPath, os.X_OK):
70			return fullPath
71
72	return None
73