mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-10 07:34:04 -08:00
94 lines
2 KiB
Go
94 lines
2 KiB
Go
// Copyright 2013 Prometheus Team
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package test
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"os"
|
|
)
|
|
|
|
const (
|
|
// The base directory used for test emissions, which instructs the operating
|
|
// system to use the default temporary directory as the base or TMPDIR
|
|
// environment variable.
|
|
defaultDirectory = ""
|
|
|
|
// A NO-OP Closer.
|
|
NilCloser = nilCloser(true)
|
|
)
|
|
|
|
type Closer interface {
|
|
// Close reaps the underlying directory and its children. The directory
|
|
// could be deleted by its users already.
|
|
Close()
|
|
}
|
|
|
|
type nilCloser bool
|
|
|
|
func (c nilCloser) Close() {
|
|
}
|
|
|
|
// TemporaryDirectory models a closeable path for transient POSIX disk
|
|
// activities.
|
|
type TemporaryDirectory interface {
|
|
Closer
|
|
|
|
// Path returns the underlying path for access.
|
|
Path() string
|
|
}
|
|
|
|
// temporaryDirectory is kept as a private type due to private fields and their
|
|
// interactions.
|
|
type temporaryDirectory struct {
|
|
path string
|
|
tester Tester
|
|
}
|
|
|
|
func (t temporaryDirectory) Close() {
|
|
err := os.RemoveAll(t.path)
|
|
if err != nil {
|
|
switch {
|
|
case os.IsNotExist(err):
|
|
return
|
|
default:
|
|
t.tester.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (t temporaryDirectory) Path() string {
|
|
return t.path
|
|
}
|
|
|
|
// NewTemporaryDirectory creates a new temporary directory for transient POSIX
|
|
// activities.
|
|
func NewTemporaryDirectory(name string, t Tester) (handler TemporaryDirectory) {
|
|
var (
|
|
directory string
|
|
err error
|
|
)
|
|
|
|
directory, err = ioutil.TempDir(defaultDirectory, name)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
handler = temporaryDirectory{
|
|
path: directory,
|
|
tester: t,
|
|
}
|
|
|
|
return
|
|
}
|