badguardhome/util/helpers.go
Andrey Meshkov ceedc2d1ff *(querylog): added offset/limit parameters
Actually, this is a serious refactoring of the query log module. The
rest API part is refactored, it's now more clear how the search is
conducted. Split the logic into more files and added more tests.

Closes: https://github.com/AdguardTeam/AdGuardHome/issues/1559
2020-05-26 15:37:37 +03:00

95 lines
1.7 KiB
Go

package util
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path"
"runtime"
"strings"
)
// ContainsString checks if "v" is in the array "arr"
func ContainsString(arr []string, v string) bool {
for _, i := range arr {
if i == v {
return true
}
}
return false
}
// fileExists returns TRUE if file exists
func FileExists(fn string) bool {
_, err := os.Stat(fn)
if err != nil {
return false
}
return true
}
// runCommand runs shell command
func RunCommand(command string, arguments ...string) (int, string, error) {
cmd := exec.Command(command, arguments...)
out, err := cmd.Output()
if err != nil {
return 1, "", fmt.Errorf("exec.Command(%s) failed: %v: %s", command, err, string(out))
}
return cmd.ProcessState.ExitCode(), string(out), nil
}
func FuncName() string {
pc := make([]uintptr, 10) // at least 1 entry needed
runtime.Callers(2, pc)
f := runtime.FuncForPC(pc[0])
return path.Base(f.Name())
}
// SplitNext - split string by a byte and return the first chunk
// Skip empty chunks
// Whitespace is trimmed
func SplitNext(str *string, splitBy byte) string {
i := strings.IndexByte(*str, splitBy)
s := ""
if i != -1 {
s = (*str)[0:i]
*str = (*str)[i+1:]
k := 0
ch := rune(0)
for k, ch = range *str {
if byte(ch) != splitBy {
break
}
}
*str = (*str)[k:]
} else {
s = *str
*str = ""
}
return strings.TrimSpace(s)
}
// MinInt - return the minimum value
func MinInt(a, b int) int {
if a < b {
return a
}
return b
}
// IsOpenWrt checks if OS is OpenWRT
func IsOpenWrt() bool {
if runtime.GOOS != "linux" {
return false
}
body, err := ioutil.ReadFile("/etc/os-release")
if err != nil {
return false
}
return strings.Contains(string(body), "OpenWrt")
}