Fix upgrade command

fix #191
This commit is contained in:
Romain de Laage 2022-11-14 09:02:56 +01:00
parent d0d2fcf0f2
commit 0c7da11f4d
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GPG Key ID: 534845FADDF0C329

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@ -6,7 +6,6 @@ import (
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"path"
@ -37,7 +36,7 @@ func dlJSON(url string) (GithubRelease, error) {
return parsed, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
body, err := io.ReadAll(resp.Body)
if err != nil {
return parsed, err
@ -73,9 +72,10 @@ func downloadAndInstallAsset(body GithubRelease, name string) error {
// Uncompress
bz := bzip2.NewReader(resp.Body)
// Save to tmp
// Linux does not support overwriting the file that is currently being overwritten, but it can be deleted and a new one moved in its place.
tmp, err := ioutil.TempFile(os.TempDir(), "autorestic-")
// Save to tmp file in the same directory as the install directory
// Linux does not support overwriting the file that is currently being running
// But it can be delete the old one and a new one moved in its place.
tmp, err := os.CreateTemp(INSTALL_PATH, "autorestic-")
if err != nil {
return err
}
@ -89,24 +89,26 @@ func downloadAndInstallAsset(body GithubRelease, name string) error {
to := path.Join(INSTALL_PATH, name)
defer os.Remove(tmp.Name()) // Cleanup temporary file after thread exits
if err := os.Rename(tmp.Name(), to); err != nil {
colors.Error.Printf("os.Rename() failed (%v), retrying with io.Copy()\n", err.Error())
var src *os.File
var dst *os.File
if src, err = os.Open(tmp.Name()); err != nil {
return err
}
if dst, err = os.Create(to); err != nil {
return err
}
if _, err := io.Copy(dst, src); err != nil {
return err
}
if err := os.Chmod(to, 0755); err != nil {
mode := os.FileMode(0755)
if originalBin, err := os.Lstat(to); err == nil {
mode = originalBin.Mode()
err := os.Remove(to)
if err != nil {
return err
}
}
err = os.Rename(tmp.Name(), to)
if err != nil {
return err
}
err = os.Chmod(to, mode)
if err != nil {
return err
}
colors.Success.Printf("Successfully installed '%s' under %s\n", name, INSTALL_PATH)
return nil
}