neo-go/cli/smartcontract/smart_contract.go
Pawan Rawal e93dfe8062 Better error messages (#24)
* Print proper error messages while using contract subcommands and also exit with status code 1.

* Make -in a flag, also remove dot from avm extension.

* Work on feedback by Anthony.

* Update README and VERSION
2018-02-24 10:10:45 +01:00

74 lines
1.5 KiB
Go

package smartcontract
import (
"github.com/CityOfZion/neo-go/pkg/vm/compiler"
"github.com/urfave/cli"
)
const (
ErrNoInput = "Input file is mandatory and should be passed using -i flag."
)
// NewCommand returns a new contract command.
func NewCommand() cli.Command {
return cli.Command{
Name: "contract",
Usage: "compile - debug - deploy smart contracts",
Subcommands: []cli.Command{
{
Name: "compile",
Usage: "compile a smart contract to a .avm file",
Action: contractCompile,
Flags: []cli.Flag{
cli.StringFlag{
Name: "in, i",
Usage: "Input file for the smart contract to be compiled",
},
cli.StringFlag{
Name: "out, o",
Usage: "Output of the compiled contract",
},
},
},
{
Name: "opdump",
Usage: "dump the opcode of a .go file",
Action: contractDumpOpcode,
Flags: []cli.Flag{
cli.StringFlag{
Name: "in, i",
Usage: "Input file for the smart contract",
},
},
},
},
}
}
func contractCompile(ctx *cli.Context) error {
src := ctx.String("in")
if len(src) == 0 {
return cli.NewExitError(ErrNoInput, 1)
}
o := &compiler.Options{
Outfile: ctx.String("out"),
Debug: true,
}
if err := compiler.CompileAndSave(src, o); err != nil {
return cli.NewExitError(err, 1)
}
return nil
}
func contractDumpOpcode(ctx *cli.Context) error {
src := ctx.String("in")
if len(src) == 0 {
return cli.NewExitError(ErrNoInput, 1)
}
if err := compiler.DumpOpcode(src); err != nil {
return cli.NewExitError(err, 1)
}
return nil
}