/
option.go
64 lines (53 loc) · 1.35 KB
/
option.go
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package gopkg2files
import (
"flag"
"io"
"log"
"os"
)
type Option struct {
Debug bool
Goroot bool
Gopkg bool
Cgo bool
Test bool
XTest bool
WorkingDirectory string
Packages []string
}
func NewOption() *Option {
return &Option{}
}
func (o *Option) FlagSet(name string) (*flag.FlagSet, error) {
flags := flag.NewFlagSet(name, flag.ContinueOnError)
workingDirectory, err := os.Getwd()
if err != nil {
return nil, err
}
flags.BoolVar(&o.Debug, "debug", false, "debug mode")
flags.BoolVar(&o.Goroot, "goroot", false, "list undered $GOROOT files")
flags.BoolVar(&o.Gopkg, "gopkg", false, "list under $GOPATH/src/github.com/ files")
flags.BoolVar(&o.Cgo, "cgo", false, "list cgo files")
flags.BoolVar(&o.Test, "test", false, "list test files")
flags.BoolVar(&o.XTest, "xtest", false, "list xtest files")
flags.StringVar(&o.WorkingDirectory, "w", workingDirectory, "Working directory")
return flags, nil
}
func (o *Option) Parse(name string, arguments []string) error {
fs, err := o.FlagSet(name)
if err != nil {
return err
}
if err := fs.Parse(arguments); err != nil {
return err
}
o.Packages = fs.Args()
return nil
}
func (o *Option) Logger() *log.Logger {
if o.Debug {
return log.New(os.Stderr, "", log.LstdFlags)
} else {
return log.New(io.Discard, "", 0)
}
}