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63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
/*
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Copyright 2015 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 util
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import (
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"os"
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"path"
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"github.com/golang/glog"
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)
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const readyFileName = "ready"
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// IsReady checks for the existence of a regular file
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// called 'ready' in the given directory and returns
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// true if that file exists.
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func IsReady(dir string) bool {
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readyFile := path.Join(dir, readyFileName)
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s, err := os.Stat(readyFile)
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if err != nil {
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return false
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}
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if !s.Mode().IsRegular() {
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glog.Errorf("ready-file is not a file: %s", readyFile)
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return false
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}
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return true
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}
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// SetReady creates a file called 'ready' in the given
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// directory. It logs an error if the file cannot be
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// created.
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func SetReady(dir string) {
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if err := os.MkdirAll(dir, 0750); err != nil && !os.IsExist(err) {
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glog.Errorf("Can't mkdir %s: %v", dir, err)
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return
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}
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readyFile := path.Join(dir, readyFileName)
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file, err := os.Create(readyFile)
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if err != nil {
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glog.Errorf("Can't touch %s: %v", readyFile, err)
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return
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}
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file.Close()
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}
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