github.com/pelicanplatform/pelican@v1.0.5/client/util.go (about)

     1  /***************************************************************
     2   *
     3   * Copyright (C) 2023, Pelican Project, Morgridge Institute for Research
     4   *
     5   * Licensed under the Apache License, Version 2.0 (the "License"); you
     6   * may not use this file except in compliance with the License.  You may
     7   * obtain a copy of the License at
     8   *
     9   *    http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   *
    17   ***************************************************************/
    18  
    19  package client
    20  
    21  import "fmt"
    22  
    23  func ByteCountSI(b int64) string {
    24  	const unit = 1000
    25  	if b < unit {
    26  		return fmt.Sprintf("%d B", b)
    27  	}
    28  	div, exp := int64(unit), 0
    29  	for n := b / unit; n >= unit; n /= unit {
    30  		div *= unit
    31  		exp++
    32  	}
    33  	return fmt.Sprintf("%.1f %cB",
    34  		float64(b)/float64(div), "kMGTPE"[exp])
    35  }