78 lines
1.4 KiB
Go
78 lines
1.4 KiB
Go
package main
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import (
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"bytes"
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"errors"
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"flag"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/matryer/moq/pkg/moq"
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)
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type userFlags struct {
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outFile string
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pkgName string
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args []string
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}
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func main() {
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var flags userFlags
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flag.StringVar(&flags.outFile, "out", "", "output file (default stdout)")
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flag.StringVar(&flags.pkgName, "pkg", "", "package name (default will infer)")
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flag.Usage = func() {
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fmt.Println(`moq [flags] destination interface [interface2 [interface3 [...]]]`)
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flag.PrintDefaults()
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fmt.Println(`Specifying an alias for the mock is also supported with the format 'interface:alias'`)
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fmt.Println(`Ex: moq -pkg different . MyInterface:MyMock`)
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}
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flag.Parse()
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flags.args = flag.Args()
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if err := run(flags); err != nil {
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fmt.Fprintln(os.Stderr, err)
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flag.Usage()
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os.Exit(1)
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}
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}
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func run(flags userFlags) error {
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if len(flags.args) < 2 {
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return errors.New("not enough arguments")
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}
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var buf bytes.Buffer
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var out io.Writer = os.Stdout
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if flags.outFile != "" {
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out = &buf
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}
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destination := flags.args[0]
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args := flags.args[1:]
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m, err := moq.New(destination, flags.pkgName)
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if err != nil {
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return err
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}
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if err = m.Mock(out, args...); err != nil {
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return err
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}
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if flags.outFile == "" {
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return nil
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}
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// create the file
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err = os.MkdirAll(filepath.Dir(flags.outFile), 0755)
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if err != nil {
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return err
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}
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return ioutil.WriteFile(flags.outFile, buf.Bytes(), 0644)
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}
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