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Simplify the commandline client (otto)

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This commit is contained in:
Robert Krimen 2014-04-11 18:13:46 -07:00
parent f04cfab02d
commit 9d7eadf70f
1 changed files with 24 additions and 22 deletions
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46
otto/main.go
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@ -3,37 +3,39 @@ package main
import (
"flag"
"fmt"
"github.com/robertkrimen/otto"
"github.com/robertkrimen/otto/underscore"
"io/ioutil"
"os"
"github.com/robertkrimen/otto"
"github.com/robertkrimen/otto/underscore"
)
var underscoreFlag *bool = flag.Bool("underscore", true, "Load underscore into the runtime environment")
var flag_underscore *bool = flag.Bool("underscore", true, "Load underscore into the runtime environment")
func readSource(filename string) ([]byte, error) {
if filename == "" || filename == "-" {
return ioutil.ReadAll(os.Stdin)
}
return ioutil.ReadFile(filename)
}
func main() {
flag.Parse()
var script []byte
var err error
filename := flag.Arg(0)
if filename == "" || filename == "-" {
script, err = ioutil.ReadAll(os.Stdin)
if err != nil {
fmt.Printf("Can't read stdin: %v\n", err)
os.Exit(64)
}
} else {
script, err = ioutil.ReadFile(filename)
if err != nil {
fmt.Printf("Can't open file \"%v\": %v\n", filename, err)
os.Exit(64)
}
}
if !*underscoreFlag {
if !*flag_underscore {
underscore.Disable()
}
Otto := otto.New()
_, err = Otto.Run(string(script))
err := func() error {
src, err := readSource(flag.Arg(0))
if err != nil {
return err
}
vm := otto.New()
_, err = vm.Run(src)
return err
}()
if err != nil {
fmt.Println(err)
os.Exit(64)