xref: /aosp_15_r20/external/swiftshader/tests/regres/util/util.go (revision 03ce13f70fcc45d86ee91b7ee4cab1936a95046e)
1*03ce13f7SAndroid Build Coastguard Worker// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
2*03ce13f7SAndroid Build Coastguard Worker//
3*03ce13f7SAndroid Build Coastguard Worker// Licensed under the Apache License, Version 2.0 (the "License");
4*03ce13f7SAndroid Build Coastguard Worker// you may not use this file except in compliance with the License.
5*03ce13f7SAndroid Build Coastguard Worker// You may obtain a copy of the License at
6*03ce13f7SAndroid Build Coastguard Worker//
7*03ce13f7SAndroid Build Coastguard Worker//    http://www.apache.org/licenses/LICENSE-2.0
8*03ce13f7SAndroid Build Coastguard Worker//
9*03ce13f7SAndroid Build Coastguard Worker// Unless required by applicable law or agreed to in writing, software
10*03ce13f7SAndroid Build Coastguard Worker// distributed under the License is distributed on an "AS IS" BASIS,
11*03ce13f7SAndroid Build Coastguard Worker// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12*03ce13f7SAndroid Build Coastguard Worker// See the License for the specific language governing permissions and
13*03ce13f7SAndroid Build Coastguard Worker// limitations under the License.
14*03ce13f7SAndroid Build Coastguard Worker
15*03ce13f7SAndroid Build Coastguard Worker// Package util provides small utility functions.
16*03ce13f7SAndroid Build Coastguard Workerpackage util
17*03ce13f7SAndroid Build Coastguard Worker
18*03ce13f7SAndroid Build Coastguard Workerimport (
19*03ce13f7SAndroid Build Coastguard Worker	"os"
20*03ce13f7SAndroid Build Coastguard Worker)
21*03ce13f7SAndroid Build Coastguard Worker
22*03ce13f7SAndroid Build Coastguard Worker// IsFile returns true if path is a file.
23*03ce13f7SAndroid Build Coastguard Workerfunc IsFile(path string) bool {
24*03ce13f7SAndroid Build Coastguard Worker	s, err := os.Stat(path)
25*03ce13f7SAndroid Build Coastguard Worker	if err != nil {
26*03ce13f7SAndroid Build Coastguard Worker		return false
27*03ce13f7SAndroid Build Coastguard Worker	}
28*03ce13f7SAndroid Build Coastguard Worker	return !s.IsDir()
29*03ce13f7SAndroid Build Coastguard Worker}
30*03ce13f7SAndroid Build Coastguard Worker
31*03ce13f7SAndroid Build Coastguard Worker// IsDir returns true if path is a directory.
32*03ce13f7SAndroid Build Coastguard Workerfunc IsDir(path string) bool {
33*03ce13f7SAndroid Build Coastguard Worker	s, err := os.Stat(path)
34*03ce13f7SAndroid Build Coastguard Worker	if err != nil {
35*03ce13f7SAndroid Build Coastguard Worker		return false
36*03ce13f7SAndroid Build Coastguard Worker	}
37*03ce13f7SAndroid Build Coastguard Worker	return s.IsDir()
38*03ce13f7SAndroid Build Coastguard Worker}
39*03ce13f7SAndroid Build Coastguard Worker
40*03ce13f7SAndroid Build Coastguard Worker// Percent returns the percentage completion of i items out of n.
41*03ce13f7SAndroid Build Coastguard Workerfunc Percent(i, n int) int {
42*03ce13f7SAndroid Build Coastguard Worker	return int(Percent64(int64(i), int64(n)))
43*03ce13f7SAndroid Build Coastguard Worker}
44*03ce13f7SAndroid Build Coastguard Worker
45*03ce13f7SAndroid Build Coastguard Worker// Percent64 returns the percentage completion of i items out of n.
46*03ce13f7SAndroid Build Coastguard Workerfunc Percent64(i, n int64) int64 {
47*03ce13f7SAndroid Build Coastguard Worker	if n == 0 {
48*03ce13f7SAndroid Build Coastguard Worker		return 0
49*03ce13f7SAndroid Build Coastguard Worker	}
50*03ce13f7SAndroid Build Coastguard Worker	return (100 * i) / n
51*03ce13f7SAndroid Build Coastguard Worker}
52