package testdata import ( "fmt" "io/ioutil" "os" "path" testdataloader "github.com/peteole/testdata-loader" "git.defalsify.org/festive/vm" ) type genFunc func() error var ( BaseDir = testdataloader.GetBasePath() DataDir = "" dirLock = false ) func out(sym string, b []byte, tpl string) error { fp := path.Join(DataDir, sym) err := ioutil.WriteFile(fp, []byte(tpl), 0644) if err != nil { return err } fb := sym + ".bin" fp = path.Join(DataDir, fb) err = ioutil.WriteFile(fp, b, 0644) if err != nil { return err } return nil } func root() error { b := []byte{} b = vm.NewLine(b, vm.MOUT, []string{"1", "do the foo"}, nil, nil) b = vm.NewLine(b, vm.MOUT, []string{"2", "go to the bar"}, nil, nil) b = vm.NewLine(b, vm.HALT, nil, nil, nil) b = vm.NewLine(b, vm.INCMP, []string{"1", "foo"}, nil, nil) b = vm.NewLine(b, vm.INCMP, []string{"2", "bar"}, nil, nil) tpl := "hello world" return out("root", b, tpl) } func foo() error { b := []byte{} b = vm.NewLine(b, vm.MOUT, []string{"0", "to foo"}, nil, nil) b = vm.NewLine(b, vm.MOUT, []string{"1", "go bar"}, nil, nil) b = vm.NewLine(b, vm.LOAD, []string{"inky"}, []byte{20}, nil) b = vm.NewLine(b, vm.HALT, nil, nil, nil) b = vm.NewLine(b, vm.INCMP, []string{"0", "_"}, nil, nil) b = vm.NewLine(b, vm.INCMP, []string{"1", "baz"}, nil, nil) b = vm.NewLine(b, vm.CATCH, []string{"_catch"}, []byte{1}, []uint8{1}) tpl := `this is in foo it has more lines` return out("foo", b, tpl) } func bar() error { b := []byte{} b = vm.NewLine(b, vm.LOAD, []string{"pinky"}, []byte{0}, nil) b = vm.NewLine(b, vm.HALT, nil, nil, nil) b = vm.NewLine(b, vm.INCMP, []string{"0", "_home"}, nil, nil) tpl := "this is bar - an end node" return out("bar", b, tpl) } func baz() error { b := []byte{} b = vm.NewLine(b, vm.MAP, []string{"inky"}, nil, nil) b = vm.NewLine(b, vm.HALT, nil, nil, nil) tpl := "this is baz which uses the var {{.inky}} in the template." return out("baz", b, tpl) } func defaultCatch() error { b := []byte{} b = vm.NewLine(b, vm.MOUT, []string{"0", "back"}, nil, nil) b = vm.NewLine(b, vm.HALT, nil, nil, nil) b = vm.NewLine(b, vm.MOVE, []string{"_"}, nil, nil) tpl := "invalid input" return out("_catch", b, tpl) } func generate() error { err := os.MkdirAll(DataDir, 0755) if err != nil { return err } fns := []genFunc{root, foo, bar, baz, defaultCatch} for _, fn := range fns { err = fn() if err != nil { return err } } return nil } func Generate() (string, error) { dir, err := ioutil.TempDir("", "festive_testdata_") if err != nil { return "", err } DataDir = dir dirLock = true err = generate() return dir, err } func GenerateTo(dir string) error { if dirLock { return fmt.Errorf("directory already overridden") } DataDir = dir dirLock = true return generate() }