github.com/x-helm/helm@v3.0.0-beta.3+incompatible/pkg/helmpath/lazypath.go (about)

     1  // Copyright The Helm Authors.
     2  // Licensed under the Apache License, Version 2.0 (the "License");
     3  // you may not use this file except in compliance with the License.
     4  // You may obtain a copy of the License at
     5  
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  package helmpath
    14  
    15  import (
    16  	"os"
    17  	"path/filepath"
    18  
    19  	"helm.sh/helm/pkg/helmpath/xdg"
    20  )
    21  
    22  // lazypath is an lazy-loaded path buffer for the XDG base directory specification.
    23  type lazypath string
    24  
    25  func (l lazypath) path(envVar string, defaultFn func() string, elem ...string) string {
    26  	base := os.Getenv(envVar)
    27  	if base == "" {
    28  		base = defaultFn()
    29  	}
    30  	return filepath.Join(base, string(l), filepath.Join(elem...))
    31  }
    32  
    33  // cachePath defines the base directory relative to which user specific non-essential data files
    34  // should be stored.
    35  func (l lazypath) cachePath(elem ...string) string {
    36  	return l.path(xdg.CacheHomeEnvVar, cacheHome, filepath.Join(elem...))
    37  }
    38  
    39  // configPath defines the base directory relative to which user specific configuration files should
    40  // be stored.
    41  func (l lazypath) configPath(elem ...string) string {
    42  	return l.path(xdg.ConfigHomeEnvVar, configHome, filepath.Join(elem...))
    43  }
    44  
    45  // dataPath defines the base directory relative to which user specific data files should be stored.
    46  func (l lazypath) dataPath(elem ...string) string {
    47  	return l.path(xdg.DataHomeEnvVar, dataHome, filepath.Join(elem...))
    48  }