packer-cn/provisioner/shell-local/provisioner.go

111 lines
2.3 KiB
Go

package shell
import (
"errors"
"fmt"
"runtime"
"github.com/mitchellh/packer/common"
"github.com/mitchellh/packer/helper/config"
"github.com/mitchellh/packer/packer"
"github.com/mitchellh/packer/template/interpolate"
)
type Config struct {
common.PackerConfig `mapstructure:",squash"`
// Command is the command to execute
Command string
// ExecuteCommand is the command used to execute the command.
ExecuteCommand []string `mapstructure:"execute_command"`
ctx interpolate.Context
}
type Provisioner struct {
config Config
}
func (p *Provisioner) Prepare(raws ...interface{}) error {
err := config.Decode(&p.config, &config.DecodeOpts{
Interpolate: true,
InterpolateContext: &p.config.ctx,
InterpolateFilter: &interpolate.RenderFilter{
Exclude: []string{
"execute_command",
},
},
}, raws...)
if err != nil {
return err
}
if len(p.config.ExecuteCommand) == 0 {
if runtime.GOOS == "windows" {
p.config.ExecuteCommand = []string{
"cmd",
"/C",
"{{.Command}}",
}
} else {
p.config.ExecuteCommand = []string{
"/bin/sh",
"-c",
"{{.Command}}",
}
}
}
var errs *packer.MultiError
if p.config.Command == "" {
errs = packer.MultiErrorAppend(errs,
errors.New("command must be specified"))
}
if len(p.config.ExecuteCommand) == 0 {
errs = packer.MultiErrorAppend(errs,
errors.New("execute_command must not be empty"))
}
if errs != nil && len(errs.Errors) > 0 {
return errs
}
return nil
}
func (p *Provisioner) Provision(ui packer.Ui, _ packer.Communicator) error {
// Make another communicator for local
comm := &Communicator{
Ctx: p.config.ctx,
ExecuteCommand: p.config.ExecuteCommand,
}
// Build the remote command
cmd := &packer.RemoteCmd{Command: p.config.Command}
ui.Say(fmt.Sprintf(
"Executing local command: %s",
p.config.Command))
if err := cmd.StartWithUi(comm, ui); err != nil {
return fmt.Errorf(
"Error executing command: %s\n\n"+
"Please see output above for more information.",
p.config.Command)
}
if cmd.ExitStatus != 0 {
return fmt.Errorf(
"Erroneous exit code %d while executing command: %s\n\n"+
"Please see output above for more information.",
cmd.ExitStatus,
p.config.Command)
}
return nil
}
func (p *Provisioner) Cancel() {
// Just do nothing. When the process ends, so will our provisioner
}