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Merge pull request #5 from NETWAYS/feature/flags
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package check | ||
|
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| import ( | ||
| "fmt" | ||
| "os" | ||
| "path" | ||
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| flag "github.com/spf13/pflag" | ||
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| log "github.com/sirupsen/logrus" | ||
| ) | ||
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| type Flags struct { | ||
| Name string | ||
| Readme string | ||
| Version string | ||
| Verbose bool | ||
| Debug bool | ||
| PrintVersion bool | ||
| Set *flag.FlagSet | ||
| } | ||
|
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| func NewFlags() *Flags { | ||
| flags := &Flags{} | ||
| flags.Name = path.Base(os.Args[0]) | ||
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| flagSet := flag.NewFlagSet(os.Args[0], flag.ContinueOnError) | ||
| flagSet.SortFlags = false | ||
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| flagSet.Usage = func() { | ||
| fmt.Printf("Usage of %s\n", flags.Name) | ||
| if flags.Readme != "" { | ||
| fmt.Println() | ||
| fmt.Println(flags.Readme) | ||
| } | ||
| fmt.Println() | ||
| fmt.Println("Arguments:") | ||
| flagSet.PrintDefaults() | ||
| } | ||
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| flagSet.BoolVarP(&flags.Debug, "debug", "d", false, "Enable debug mode") | ||
| flagSet.BoolVarP(&flags.Verbose, "verbose", "v", false, "Enable verbose mode") | ||
| flagSet.BoolVarP(&flags.PrintVersion, "version", "V", false, "Print version and exit") | ||
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| flags.Set = flagSet | ||
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| return flags | ||
| } | ||
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| func (f *Flags) Parse(arguments []string) { | ||
| err := f.Set.Parse(arguments) | ||
| if err != nil { | ||
| if err != flag.ErrHelp { | ||
| ExitError(err) | ||
| } | ||
| BaseExit(3) | ||
| } | ||
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| if f.PrintVersion { | ||
| fmt.Println(f.Name, "version", f.Version) | ||
| BaseExit(3) | ||
| } | ||
| } | ||
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| func (f *Flags) SetupLogging() { | ||
| if f.Debug { | ||
| log.SetLevel(log.DebugLevel) | ||
| } else if f.Verbose { | ||
| log.SetLevel(log.InfoLevel) | ||
| } else { | ||
| log.SetLevel(log.WarnLevel) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| package check | ||
|
|
||
| import ( | ||
| log "github.com/sirupsen/logrus" | ||
| ) | ||
|
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| func ExampleFlags() { | ||
| flags := NewFlags() | ||
| flags.Name = "check_test" | ||
| flags.Readme = `Test Plugin` | ||
| flags.Version = "1.0.0" | ||
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| _ = flags.Set.StringP("hostname", "H", "localhost", "Hostname to check") | ||
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| // flags.Parse(os.Args[1:]) | ||
| flags.Parse([]string{"--help"}) | ||
| flags.SetupLogging() | ||
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| log.Info("test") | ||
| // Output: Usage of check_test | ||
| // | ||
| // Test Plugin | ||
| // | ||
| // Arguments: | ||
| // would exit with code 3 | ||
| } |
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