github.com/go-spring/spring-base@v1.1.3/util/filepath.go (about)

     1  /*
     2   * Copyright 2012-2019 the original author or 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   *      https://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 util
    18  
    19  import (
    20  	"os"
    21  )
    22  
    23  // ReadDirNames reads the directory named by dirname and returns an unsorted
    24  // list of directory entries.
    25  func ReadDirNames(dirname string) ([]string, error) {
    26  	f, err := os.Open(dirname)
    27  	if err != nil {
    28  		return nil, err
    29  	}
    30  	names, err := f.Readdirnames(-1)
    31  	f.Close()
    32  	return names, err
    33  }
    34  
    35  // Contract contracts `filename` and replace the excessive part using `...`.
    36  func Contract(filename string, maxLength int) string {
    37  	if n := len(filename); maxLength > 3 && n > maxLength-3 {
    38  		return "..." + filename[n-maxLength+3:]
    39  	}
    40  	return filename
    41  }