github.com/cyverse/go-irodsclient@v0.13.2/irods/util/path.go (about)

     1  package util
     2  
     3  import (
     4  	"os"
     5  	"path/filepath"
     6  	"strings"
     7  
     8  	"golang.org/x/xerrors"
     9  )
    10  
    11  // GetCorrectLocalPath corrects the path
    12  func GetCorrectLocalPath(p string) string {
    13  	return filepath.Clean(p)
    14  }
    15  
    16  func GetBasename(p string) string {
    17  	p = strings.TrimRight(p, string(os.PathSeparator))
    18  	p = strings.TrimRight(p, "/")
    19  
    20  	idx1 := strings.LastIndex(p, string(os.PathSeparator))
    21  	idx2 := strings.LastIndex(p, "/")
    22  
    23  	if idx1 < 0 && idx2 < 0 {
    24  		return p
    25  	}
    26  
    27  	if idx1 >= idx2 {
    28  		return p[idx1+1:]
    29  	}
    30  	return p[idx2+1:]
    31  }
    32  
    33  func GetDir(p string) string {
    34  	idx1 := strings.LastIndex(p, string(os.PathSeparator))
    35  	idx2 := strings.LastIndex(p, "/")
    36  
    37  	if idx1 < 0 && idx2 < 0 {
    38  		return "/"
    39  	}
    40  
    41  	if idx1 >= idx2 {
    42  		return p[:idx1]
    43  	}
    44  	return p[:idx2]
    45  }
    46  
    47  func Join(p1 string, p2 ...string) string {
    48  	sep := "/"
    49  
    50  	if strings.Contains(p1, string(os.PathSeparator)) {
    51  		sep = string(os.PathSeparator)
    52  	} else if strings.Contains(p1, "/") {
    53  		sep = "/"
    54  	}
    55  
    56  	p := []string{}
    57  	p = append(p, p1)
    58  	p = append(p, p2...)
    59  
    60  	return strings.Join(p, sep)
    61  }
    62  
    63  func ExpandHomeDir(path string) (string, error) {
    64  	if len(path) == 0 {
    65  		return "", nil
    66  	}
    67  
    68  	if path[0] != '~' {
    69  		return path, nil
    70  	}
    71  
    72  	homedir, err := os.UserHomeDir()
    73  	if err != nil {
    74  		return "", xerrors.Errorf("failed to get user home dir: %w", err)
    75  	}
    76  
    77  	// resolve "~"
    78  	if len(path) == 1 {
    79  		return homedir, nil
    80  	}
    81  
    82  	// resolve "~/"
    83  	if path[1] == '/' {
    84  		path = filepath.Join(homedir, path[2:])
    85  		return filepath.Clean(path), nil
    86  	}
    87  
    88  	return path, nil
    89  }
    90  
    91  func ExistFile(path string) bool {
    92  	st, err := os.Stat(path)
    93  	if err != nil {
    94  		return false
    95  	}
    96  
    97  	if !st.IsDir() {
    98  		return true
    99  	}
   100  	return false
   101  }