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lazypath.go
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lazypath.go
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// Copyright The Helm 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 helmpath
import (
"os"
"path/filepath"
"github.com/hinfinite/helm/pkg/helmpath/xdg"
)
// lazypath is an lazy-loaded path buffer for the XDG base directory specification.
type lazypath string
func (l lazypath) path(envVar string, defaultFn func() string, elem ...string) string {
base := os.Getenv(envVar)
if base == "" {
base = defaultFn()
}
return filepath.Join(base, string(l), filepath.Join(elem...))
}
// cachePath defines the base directory relative to which user specific non-essential data files
// should be stored.
func (l lazypath) cachePath(elem ...string) string {
return l.path(xdg.CacheHomeEnvVar, cacheHome, filepath.Join(elem...))
}
// configPath defines the base directory relative to which user specific configuration files should
// be stored.
func (l lazypath) configPath(elem ...string) string {
return l.path(xdg.ConfigHomeEnvVar, configHome, filepath.Join(elem...))
}
// dataPath defines the base directory relative to which user specific data files should be stored.
func (l lazypath) dataPath(elem ...string) string {
return l.path(xdg.DataHomeEnvVar, dataHome, filepath.Join(elem...))
}