Ejemplo n.º 1
0
func parseFlags(checker *errcheck.Checker, args []string) ([]string, int) {
	flags := flag.NewFlagSet(args[0], flag.ContinueOnError)
	flags.BoolVar(&checker.Blank, "blank", false, "if true, check for errors assigned to blank identifier")
	flags.BoolVar(&checker.Asserts, "asserts", false, "if true, check for ignored type assertion results")
	flags.BoolVar(&checker.Verbose, "verbose", false, "produce more verbose logging")

	tags := tagsFlag{}
	flags.Var(&tags, "tags", "space-separated list of build tags to include")
	ignorePkg := flags.String("ignorepkg", "", "comma-separated list of package paths to ignore")
	ignore := ignoreFlag(map[string]*regexp.Regexp{
		"fmt": dotStar,
	})
	flags.Var(ignore, "ignore", "comma-separated list of pairs of the form pkg:regex\n"+
		"            the regex is used to ignore names within pkg")

	if err := flags.Parse(args[1:]); err != nil {
		return nil, exitFatalError
	}

	checker.Tags = tags
	for _, pkg := range strings.Split(*ignorePkg, ",") {
		if pkg != "" {
			ignore[pkg] = dotStar
		}
	}
	checker.Ignore = ignore

	ctx := gotool.Context{
		BuildContext: build.Default,
	}
	ctx.BuildContext.BuildTags = tags

	// ImportPaths normalizes paths and expands '...'
	return gotool.ImportPaths(flags.Args()), exitCodeOk
}
Ejemplo n.º 2
0
func parseFlags(checker *errcheck.Checker, args []string) ([]string, int) {
	flags := flag.NewFlagSet(args[0], flag.ContinueOnError)
	flags.BoolVar(&checker.Blank, "blank", false, "if true, check for errors assigned to blank identifier")
	flags.BoolVar(&checker.Asserts, "asserts", false, "if true, check for ignored type assertion results")
	flags.BoolVar(&checker.WithoutTests, "ignoretests", false, "if true, checking of _test.go files is disabled")
	flags.BoolVar(&checker.Verbose, "verbose", false, "produce more verbose logging")

	flags.BoolVar(&abspath, "abspath", false, "print absolute paths to files")

	tags := tagsFlag{}
	flags.Var(&tags, "tags", "space-separated list of build tags to include")
	ignorePkg := flags.String("ignorepkg", "", "comma-separated list of package paths to ignore")
	ignore := ignoreFlag(map[string]*regexp.Regexp{
		"fmt": dotStar,
	})
	flags.Var(ignore, "ignore", "[deprecated] comma-separated list of pairs of the form pkg:regex\n"+
		"            the regex is used to ignore names within pkg.")

	var excludeFile string
	flags.StringVar(&excludeFile, "exclude", "", "Path to a file containing a list of functions to exclude from checking")

	if err := flags.Parse(args[1:]); err != nil {
		return nil, exitFatalError
	}

	if excludeFile != "" {
		exclude := make(map[string]bool)
		fh, err := os.Open(excludeFile)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Could not read exclude file: %s\n", err)
			return nil, exitFatalError
		}
		scanner := bufio.NewScanner(fh)
		for scanner.Scan() {
			exclude[scanner.Text()] = true
		}
		if err := scanner.Err(); err != nil {
			fmt.Fprintf(os.Stderr, "Could not read exclude file: %s\n", err)
			return nil, exitFatalError
		}
		checker.SetExclude(exclude)
	}

	checker.Tags = tags
	for _, pkg := range strings.Split(*ignorePkg, ",") {
		if pkg != "" {
			ignore[pkg] = dotStar
		}
	}
	checker.Ignore = ignore

	// ImportPaths normalizes paths and expands '...'
	return gotool.ImportPaths(flags.Args()), exitCodeOk
}