Function mainImplementation

git-sizer.go:103–320

(stdout, stderr io.Writer, args []string)

}

func mainImplementation(stdout, stderr io.Writer, args []string) error {
	var nameStyle sizes.NameStyle = sizes.NameStyleFull
	var cpuprofile string
	var jsonOutput bool
	var jsonVersion int
	var threshold sizes.Threshold = 1
	var progress bool
	var version bool
	var showRefs bool

	// Try to open the repository, but it's not an error yet if this
	// fails, because the user might only be asking for `--help`.
	repo, repoErr := git.NewRepository(".")

	flags := pflag.NewFlagSet("git-sizer", pflag.ContinueOnError)
	flags.Usage = func() {
		fmt.Fprint(stdout, usage)
	}

	flags.VarP(
		sizes.NewThresholdFlagValue(&threshold, 0),
		"verbose", "v", "report all statistics, whether concerning or not",
	)
	flags.Lookup("verbose").NoOptDefVal = "true"

	flags.Var(
		sizes.NewThresholdFlagValue(&threshold, 1),
		"no-verbose", "report statistics that are at all concerning",
	)
	flags.Lookup("no-verbose").NoOptDefVal = "true"

	flags.Var(
		&threshold, "threshold",
		"minimum level of concern (i.e., number of stars) that should be\n"+
			"                              reported",
	)

	flags.Var(
		sizes.NewThresholdFlagValue(&threshold, 30),
		"critical", "only report critical statistics",
	)
	flags.Lookup("critical").NoOptDefVal = "true"

	flags.Var(
		&nameStyle, "names",
		"display names of large objects in the specified `style`:\n"+
			"        --names=none            omit footnotes entirely\n"+
			"        --names=hash            show only the SHA-1s of objects\n"+
			"        --names=full            show full names",
	)

	flags.BoolVarP(&jsonOutput, "json", "j", false, "output results in JSON format")
	flags.IntVar(&jsonVersion, "json-version", 1, "JSON format version to output (1 or 2)")

	defaultProgress := false
	if f, ok := stderr.(*os.File); ok {
		atty, err := isatty.Isatty(f.Fd())
		if err == nil && atty {