Files
go-utils/file.go
T
2018-03-07 15:31:02 +03:00

70 lines
1.2 KiB
Go

package utils
import (
"bufio"
"errors"
"os"
"strings"
)
func File_put_contents(filename string, text string) {
f, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
panic(err)
}
f.WriteString(text)
f.Close()
}
func File_append_contents(filename string, text string) {
f, err := os.OpenFile(filename, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
if err != nil {
panic(err)
}
f.WriteString(text)
f.Close()
}
func Fs_exists(filename string) bool {
if _, err := os.Stat(filename); os.IsNotExist(err) {
return false
}
return true
}
func File_get_lines(path string) ([]string, error) {
file, err := os.Open(path)
if err != nil {
return nil, err
}
defer file.Close()
var lines []string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
return lines, scanner.Err()
}
func FindLine(filename string, tofind string) (string, error) {
file, err := os.Open(filename)
if err != nil {
return "", err
}
defer file.Close()
scanner := bufio.NewScanner(file)
for scanner.Scan() {
text := scanner.Text()
if strings.Contains(text, tofind) {
return text, nil
}
}
if err := scanner.Err(); err != nil {
return "", err
}
return "", errors.New("Nothnig found")
}