mirror of
https://github.com/octoleo/restic.git
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108 lines
2.2 KiB
Go
108 lines
2.2 KiB
Go
package ui
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"math/bits"
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"strconv"
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"time"
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)
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func FormatBytes(c uint64) string {
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b := float64(c)
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switch {
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case c >= 1<<40:
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return fmt.Sprintf("%.3f TiB", b/(1<<40))
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case c >= 1<<30:
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return fmt.Sprintf("%.3f GiB", b/(1<<30))
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case c >= 1<<20:
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return fmt.Sprintf("%.3f MiB", b/(1<<20))
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case c >= 1<<10:
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return fmt.Sprintf("%.3f KiB", b/(1<<10))
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default:
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return fmt.Sprintf("%d B", c)
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}
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}
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// FormatPercent formats numerator/denominator as a percentage.
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func FormatPercent(numerator uint64, denominator uint64) string {
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if denominator == 0 {
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return ""
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}
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percent := 100.0 * float64(numerator) / float64(denominator)
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if percent > 100 {
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percent = 100
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}
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return fmt.Sprintf("%3.2f%%", percent)
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}
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// FormatDuration formats d as FormatSeconds would.
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func FormatDuration(d time.Duration) string {
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sec := uint64(d / time.Second)
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return FormatSeconds(sec)
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}
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// FormatSeconds formats sec as MM:SS, or HH:MM:SS if sec seconds
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// is at least an hour.
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func FormatSeconds(sec uint64) string {
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hours := sec / 3600
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sec -= hours * 3600
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min := sec / 60
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sec -= min * 60
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if hours > 0 {
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return fmt.Sprintf("%d:%02d:%02d", hours, min, sec)
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}
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return fmt.Sprintf("%d:%02d", min, sec)
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}
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// ParseBytes parses a size in bytes from s. It understands the suffixes
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// B, K, M, G and T for powers of 1024.
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func ParseBytes(s string) (int64, error) {
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if s == "" {
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return 0, errors.New("expected size, got empty string")
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}
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numStr := s[:len(s)-1]
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var unit uint64 = 1
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switch s[len(s)-1] {
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case 'b', 'B':
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// use initialized values, do nothing here
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case 'k', 'K':
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unit = 1024
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case 'm', 'M':
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unit = 1024 * 1024
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case 'g', 'G':
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unit = 1024 * 1024 * 1024
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case 't', 'T':
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unit = 1024 * 1024 * 1024 * 1024
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default:
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numStr = s
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}
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value, err := strconv.ParseInt(numStr, 10, 64)
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if err != nil {
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return 0, err
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}
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hi, lo := bits.Mul64(uint64(value), unit)
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value = int64(lo)
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if hi != 0 || value < 0 {
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return 0, fmt.Errorf("ParseSize: %q: %w", numStr, strconv.ErrRange)
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}
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return value, nil
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}
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func ToJSONString(status interface{}) string {
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buf := new(bytes.Buffer)
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err := json.NewEncoder(buf).Encode(status)
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if err != nil {
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panic(err)
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}
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return buf.String()
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}
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