github.com/MRtecno98/afero@v1.9.3/os.go (about)

     1  // Copyright © 2014 Steve Francia <spf@spf13.com>.
     2  // Copyright 2013 tsuru authors. All rights reserved.
     3  //
     4  // Licensed under the Apache License, Version 2.0 (the "License");
     5  // you may not use this file except in compliance with the License.
     6  // You may obtain a copy of the License at
     7  // http://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  package afero
    16  
    17  import (
    18  	"os"
    19  	"time"
    20  )
    21  
    22  var _ Lstater = (*OsFs)(nil)
    23  
    24  // OsFs is a Fs implementation that uses functions provided by the os package.
    25  //
    26  // For details in any method, check the documentation of the os package
    27  // (http://golang.org/pkg/os/).
    28  type OsFs struct{}
    29  
    30  func NewOsFs() Fs {
    31  	return &OsFs{}
    32  }
    33  
    34  func (OsFs) Name() string { return "OsFs" }
    35  
    36  func (OsFs) Close() {}
    37  
    38  func (OsFs) Create(name string) (File, error) {
    39  	f, e := os.Create(name)
    40  	if f == nil {
    41  		// while this looks strange, we need to return a bare nil (of type nil) not
    42  		// a nil value of type *os.File or nil won't be nil
    43  		return nil, e
    44  	}
    45  	return f, e
    46  }
    47  
    48  func (OsFs) Mkdir(name string, perm os.FileMode) error {
    49  	return os.Mkdir(name, perm)
    50  }
    51  
    52  func (OsFs) MkdirAll(path string, perm os.FileMode) error {
    53  	return os.MkdirAll(path, perm)
    54  }
    55  
    56  func (OsFs) Open(name string) (File, error) {
    57  	f, e := os.Open(name)
    58  	if f == nil {
    59  		// while this looks strange, we need to return a bare nil (of type nil) not
    60  		// a nil value of type *os.File or nil won't be nil
    61  		return nil, e
    62  	}
    63  	return f, e
    64  }
    65  
    66  func (OsFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
    67  	f, e := os.OpenFile(name, flag, perm)
    68  	if f == nil {
    69  		// while this looks strange, we need to return a bare nil (of type nil) not
    70  		// a nil value of type *os.File or nil won't be nil
    71  		return nil, e
    72  	}
    73  	return f, e
    74  }
    75  
    76  func (OsFs) Remove(name string) error {
    77  	return os.Remove(name)
    78  }
    79  
    80  func (OsFs) RemoveAll(path string) error {
    81  	return os.RemoveAll(path)
    82  }
    83  
    84  func (OsFs) Rename(oldname, newname string) error {
    85  	return os.Rename(oldname, newname)
    86  }
    87  
    88  func (OsFs) Stat(name string) (os.FileInfo, error) {
    89  	return os.Stat(name)
    90  }
    91  
    92  func (OsFs) Chmod(name string, mode os.FileMode) error {
    93  	return os.Chmod(name, mode)
    94  }
    95  
    96  func (OsFs) Chown(name string, uid, gid int) error {
    97  	return os.Chown(name, uid, gid)
    98  }
    99  
   100  func (OsFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
   101  	return os.Chtimes(name, atime, mtime)
   102  }
   103  
   104  func (OsFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
   105  	fi, err := os.Lstat(name)
   106  	return fi, true, err
   107  }
   108  
   109  func (OsFs) SymlinkIfPossible(oldname, newname string) error {
   110  	return os.Symlink(oldname, newname)
   111  }
   112  
   113  func (OsFs) ReadlinkIfPossible(name string) (string, error) {
   114  	return os.Readlink(name)
   115  }