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do not rename inuse files

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This commit is contained in:
Knic Knic 2020-02-21 22:45:05 -08:00
parent 95760fff0f
commit 522e08872a
1 changed files with 14 additions and 10 deletions
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24
pkg/passwd/passwd.go
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@ -133,19 +133,23 @@ func (p *Passwd) Write(passwdFile string) error {
} }
func writePasswords(passwdFile string, records [][]string) error { func writePasswords(passwdFile string, records [][]string) error {
out, err := os.Create(passwdFile + ".tmp") err := func() error {
// ensure to close tmp file before rename for filesystems like NTFS
out, err := os.Create(passwdFile + ".tmp")
if err != nil {
return err
}
defer out.Close()
if err := out.Chmod(0600); err != nil {
return err
}
return csv.NewWriter(out).WriteAll(records)
}()
if err != nil { if err != nil {
return err return err
} }
defer out.Close()
if err := out.Chmod(0600); err != nil {
return err
}
if err := csv.NewWriter(out).WriteAll(records); err != nil {
return err
}
return os.Rename(passwdFile+".tmp", passwdFile) return os.Rename(passwdFile+".tmp", passwdFile)
} }