mirror of https://github.com/k3s-io/k3s
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
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/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package file
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import (
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"os"
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)
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// FileExists checks if specified file exists.
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func FileExists(filename string) (bool, error) {
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if _, err := os.Stat(filename); os.IsNotExist(err) {
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return false, nil
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} else if err != nil {
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return false, err
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}
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return true, nil
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}
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// FileOrSymlinkExists checks if specified file or symlink exists.
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func FileOrSymlinkExists(filename string) (bool, error) {
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if _, err := os.Lstat(filename); os.IsNotExist(err) {
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return false, nil
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} else if err != nil {
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return false, err
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}
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return true, nil
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}
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// ReadDirNoStat returns a string of files/directories contained
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// in dirname without calling lstat on them.
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func ReadDirNoStat(dirname string) ([]string, error) {
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if dirname == "" {
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dirname = "."
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}
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f, err := os.Open(dirname)
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if err != nil {
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return nil, err
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}
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defer f.Close()
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return f.Readdirnames(-1)
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}
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