github.com/avfs/avfs@v0.33.1-0.20240303173310-c6ba67c33eb7/curdir.go (about)

     1  //
     2  //  Copyright 2024 The AVFS authors
     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  //
     8  //  	http://www.apache.org/licenses/LICENSE-2.0
     9  //
    10  //  Unless required by applicable law or agreed to in writing, software
    11  //  distributed under the License is distributed on an "AS IS" BASIS,
    12  //  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  //  See the License for the specific language governing permissions and
    14  //  limitations under the License.
    15  //
    16  
    17  package avfs
    18  
    19  // CurDirMgr is the interface that manages the current directory.
    20  type CurDirMgr interface {
    21  	// CurDir returns the current directory.
    22  	CurDir() string
    23  
    24  	// SetCurDir sets the current directory.
    25  	SetCurDir(curDir string) error
    26  }
    27  
    28  // CurDirFn provides current directory functions to a file system.
    29  type CurDirFn struct {
    30  	curDir string // curDir is the current directory.
    31  }
    32  
    33  // CurDir returns the current directory.
    34  func (cdf *CurDirFn) CurDir() string {
    35  	return cdf.curDir
    36  }
    37  
    38  // SetCurDir sets the current directory.
    39  func (cdf *CurDirFn) SetCurDir(curDir string) error {
    40  	cdf.curDir = curDir
    41  
    42  	return nil
    43  }