71 lines
1.2 KiB
Go
71 lines
1.2 KiB
Go
package utils
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import (
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"context"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"os/exec"
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"strconv"
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"time"
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)
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// SafeParseInt64 ...
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func SafeParseInt64(s string, d int64) int64 {
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n, err := strconv.ParseInt(s, 10, 64)
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if err != nil {
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return d
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}
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return n
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}
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func Download(url, filename string) error {
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res, err := http.Get(url)
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if err != nil {
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return err
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}
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defer res.Body.Close()
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data, err := ioutil.ReadAll(res.Body)
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if err != nil {
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return err
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}
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if err := ioutil.WriteFile(filename, data, 0644); err != nil {
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return err
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}
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return nil
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}
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// FileExists ...
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func FileExists(name string) bool {
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if _, err := os.Stat(name); err != nil {
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if os.IsNotExist(err) {
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return false
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}
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}
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return true
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}
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// CmdExists ...
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func CmdExists(cmd string) bool {
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_, err := exec.LookPath(cmd)
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return err == nil
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}
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// RunCmd ...
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func RunCmd(timeout int, command string, args ...string) error {
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeout)*time.Second)
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defer cancel()
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cmd := exec.CommandContext(ctx, command, args...)
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out, err := cmd.CombinedOutput()
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if err != nil {
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return fmt.Errorf("cmd.CombinedOutput error: %w\n%s", err, out)
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}
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return nil
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}
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