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dfpath.go
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dfpath.go
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/*
* Copyright 2020 The Dragonfly Authors
*
* 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 dfpath
import (
"path/filepath"
"sync"
"d7y.io/dragonfly/v2/pkg/util/fileutils"
)
// Dfpath is the interface used for init project path
type Dfpath interface {
WorkHome() string
CacheDir() string
LogDir() string
DataDir() string
PluginDir() string
DaemonSockPath() string
DaemonLockPath() string
DfgetLockPath() string
}
// Dfpath provides init project path function
type dfpath struct {
workHome string
cacheDir string
logDir string
dataDir string
pluginDir string
daemonSockPath string
daemonLockPath string
dfgetLockPath string
}
// Cache of the dfpath
var cache struct {
sync.Once
d *dfpath
err error
}
// Option is a functional option for configuring the dfpath
type Option func(d *dfpath)
// WithWorkHome set the workhome directory
func WithWorkHome(dir string) Option {
return func(d *dfpath) {
d.workHome = dir
}
}
// WithCacheDir set the cache directory
func WithCacheDir(dir string) Option {
return func(d *dfpath) {
d.cacheDir = dir
}
}
// WithLogDir set the log directory
func WithLogDir(dir string) Option {
return func(d *dfpath) {
d.logDir = dir
}
}
// WithDataDir set download data directory
func WithDataDir(dir string) Option {
return func(d *dfpath) {
d.dataDir = dir
}
}
// New returns a new dfpath interface
func New(options ...Option) (Dfpath, error) {
cache.Do(func() {
d := &dfpath{
workHome: DefaultWorkHome,
cacheDir: DefaultCacheDir,
logDir: DefaultLogDir,
dataDir: DefaultDataDir,
}
for _, opt := range options {
opt(d)
}
d.pluginDir = filepath.Join(d.workHome, "plugins")
d.daemonSockPath = filepath.Join(d.workHome, "daemon.sock")
d.daemonLockPath = filepath.Join(d.workHome, "daemon.lock")
d.dfgetLockPath = filepath.Join(d.workHome, "dfget.lock")
// Create directories
for _, dir := range []string{d.workHome, d.cacheDir, d.logDir, d.dataDir, d.pluginDir} {
if err := fileutils.MkdirAll(dir); err != nil {
cache.err = err
}
}
cache.d = d
})
if cache.err != nil {
return nil, cache.err
}
d := *cache.d
return &d, nil
}
func (d *dfpath) WorkHome() string {
return d.workHome
}
func (d *dfpath) CacheDir() string {
return d.cacheDir
}
func (d *dfpath) LogDir() string {
return d.logDir
}
func (d *dfpath) DataDir() string {
return d.dataDir
}
func (d *dfpath) PluginDir() string {
return d.pluginDir
}
func (d *dfpath) DaemonSockPath() string {
return d.daemonSockPath
}
func (d *dfpath) DaemonLockPath() string {
return d.daemonLockPath
}
func (d *dfpath) DfgetLockPath() string {
return d.dfgetLockPath
}