github.com/tickoalcantara12/micro/v3@v3.0.0-20221007104245-9d75b9bcbab9/util/acme/autocert/cache.go (about)

     1  // Copyright 2020 Asim Aslam
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     https://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  // Original source: github.com/micro/go-micro/v3/api/server/acme/autocert/cache.go
    16  
    17  package autocert
    18  
    19  import (
    20  	"os"
    21  	"path/filepath"
    22  	"runtime"
    23  )
    24  
    25  func homeDir() string {
    26  	if runtime.GOOS == "windows" {
    27  		return os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
    28  	}
    29  	if h := os.Getenv("HOME"); h != "" {
    30  		return h
    31  	}
    32  	return "/"
    33  }
    34  
    35  func cacheDir() string {
    36  	const base = "golang-autocert"
    37  	switch runtime.GOOS {
    38  	case "darwin":
    39  		return filepath.Join(homeDir(), "Library", "Caches", base)
    40  	case "windows":
    41  		for _, ev := range []string{"APPDATA", "CSIDL_APPDATA", "TEMP", "TMP"} {
    42  			if v := os.Getenv(ev); v != "" {
    43  				return filepath.Join(v, base)
    44  			}
    45  		}
    46  		// Worst case:
    47  		return filepath.Join(homeDir(), base)
    48  	}
    49  	if xdg := os.Getenv("XDG_CACHE_HOME"); xdg != "" {
    50  		return filepath.Join(xdg, base)
    51  	}
    52  	return filepath.Join(homeDir(), ".cache", base)
    53  }