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Print MOAR environment value in --help

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This commit is contained in:
Johan Walles 2021-06-04 06:15:09 +02:00
parent 4552bfd79c
commit 2a435c091b
1 changed files with 9 additions and 2 deletions
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11
moar.go
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@ -27,9 +27,10 @@ func printUsage(output io.Writer, flagSet *flag.FlagSet, printCommandline bool)
flagSet.SetOutput(output)
// FIXME: Log if any printouts fail?
moarEnv := os.Getenv("MOAR")
if printCommandline {
_, _ = fmt.Fprintln(output, "Commandline: moar", strings.Join(os.Args[1:], " "))
_, _ = fmt.Fprintf(output, "Environment: MOAR=\"%v\"\n", os.Getenv("MOAR"))
_, _ = fmt.Fprintf(output, "Environment: MOAR=\"%v\"\n", moarEnv)
_, _ = fmt.Fprintln(output)
}
@ -39,7 +40,13 @@ func printUsage(output io.Writer, flagSet *flag.FlagSet, printCommandline bool)
_, _ = fmt.Fprintln(output, " moar < file")
_, _ = fmt.Fprintln(output)
_, _ = fmt.Fprintln(output, "Environment:")
_, _ = fmt.Fprintln(output, " Options will be read from the MOAR environment variable if set.")
if len(moarEnv) == 0 {
_, _ = fmt.Fprintln(output, " Additional options are read from the MOAR environment variable if set.")
_, _ = fmt.Fprintln(output, " But currently, the MOAR environment variable is not set.")
} else {
_, _ = fmt.Fprintln(output, " Additional options are read from the MOAR environment variable.")
_, _ = fmt.Fprintf(output, " Current setting: MOAR=\"%s\"\n", moarEnv)
}
_, _ = fmt.Fprintln(output)
_, _ = fmt.Fprintln(output, "Options:")