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Factor out setUsage.

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This commit is contained in:
Juliusz Chroboczek 2024-10-23 18:27:18 +02:00
parent ece4929111
commit e33029072b
1 changed files with 11 additions and 7 deletions
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14
galenectl/galenectl.go
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@ -119,6 +119,13 @@ func makePassword(pw string, algorithm string, iterations, length, saltlen, cost
} }
} }
func setUsage(cmd *flag.FlagSet, cmdname string, format string, args ...any) {
cmd.Usage = func() {
fmt.Fprintf(cmd.Output(), format, args...)
cmd.PrintDefaults()
}
}
func hashPasswordCmd(cmdname string, args []string) { func hashPasswordCmd(cmdname string, args []string) {
var algorithm string var algorithm string
var iterations int var iterations int
@ -127,13 +134,10 @@ func hashPasswordCmd(cmdname string, args []string) {
var saltlen int var saltlen int
cmd := flag.NewFlagSet(cmdname, flag.ExitOnError) cmd := flag.NewFlagSet(cmdname, flag.ExitOnError)
cmd.Usage = func() { setUsage(cmd, cmdname,
fmt.Fprintf(cmd.Output(), "%v [option...] %v [option...] password...\n",
"%v [option...] %v password [option...] password...\n",
os.Args[0], cmdname, os.Args[0], cmdname,
) )
cmd.PrintDefaults()
}
cmd.StringVar(&algorithm, "hash", "pbkdf2", cmd.StringVar(&algorithm, "hash", "pbkdf2",
"hashing `algorithm`") "hashing `algorithm`")
cmd.IntVar(&iterations, "iterations", 4096, cmd.IntVar(&iterations, "iterations", 4096,