64 lines
1.3 KiB
Go
64 lines
1.3 KiB
Go
|
package internal
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bufio"
|
||
|
|
"errors"
|
||
|
|
"os"
|
||
|
|
"strings"
|
||
|
|
"time"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Duration just wraps time.Duration
|
||
|
|
type Duration struct {
|
||
|
|
time.Duration
|
||
|
|
}
|
||
|
|
|
||
|
|
// UnmarshalTOML parses the duration from the TOML config file
|
||
|
|
func (d *Duration) UnmarshalTOML(b []byte) error {
|
||
|
|
dur, err := time.ParseDuration(string(b[1 : len(b)-1]))
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
d.Duration = dur
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
var NotImplementedError = errors.New("not implemented yet")
|
||
|
|
|
||
|
|
// ReadLines reads contents from a file and splits them by new lines.
|
||
|
|
// A convenience wrapper to ReadLinesOffsetN(filename, 0, -1).
|
||
|
|
func ReadLines(filename string) ([]string, error) {
|
||
|
|
return ReadLinesOffsetN(filename, 0, -1)
|
||
|
|
}
|
||
|
|
|
||
|
|
// ReadLines reads contents from file and splits them by new line.
|
||
|
|
// The offset tells at which line number to start.
|
||
|
|
// The count determines the number of lines to read (starting from offset):
|
||
|
|
// n >= 0: at most n lines
|
||
|
|
// n < 0: whole file
|
||
|
|
func ReadLinesOffsetN(filename string, offset uint, n int) ([]string, error) {
|
||
|
|
f, err := os.Open(filename)
|
||
|
|
if err != nil {
|
||
|
|
return []string{""}, err
|
||
|
|
}
|
||
|
|
defer f.Close()
|
||
|
|
|
||
|
|
var ret []string
|
||
|
|
|
||
|
|
r := bufio.NewReader(f)
|
||
|
|
for i := 0; i < n+int(offset) || n < 0; i++ {
|
||
|
|
line, err := r.ReadString('\n')
|
||
|
|
if err != nil {
|
||
|
|
break
|
||
|
|
}
|
||
|
|
if i < int(offset) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
ret = append(ret, strings.Trim(line, "\n"))
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret, nil
|
||
|
|
}
|