packer-cn/builder/file/config.go

57 lines
1.3 KiB
Go
Raw Normal View History

package file
import (
"fmt"
"github.com/mitchellh/packer/common"
"github.com/mitchellh/packer/helper/config"
"github.com/mitchellh/packer/packer"
"github.com/mitchellh/packer/template/interpolate"
)
var ErrTargetRequired = fmt.Errorf("target required")
var ErrContentSourceConflict = fmt.Errorf("Cannot specify source file AND content")
type Config struct {
common.PackerConfig `mapstructure:",squash"`
Source string `mapstructure:"source"`
Target string `mapstructure:"target"`
Content string `mapstructure:"content"`
}
func NewConfig(raws ...interface{}) (*Config, []string, error) {
c := new(Config)
warnings := []string{}
err := config.Decode(c, &config.DecodeOpts{
Interpolate: true,
InterpolateFilter: &interpolate.RenderFilter{
Exclude: []string{},
},
}, raws...)
if err != nil {
return nil, warnings, err
}
var errs *packer.MultiError
if c.Target == "" {
errs = packer.MultiErrorAppend(errs, ErrTargetRequired)
}
if c.Content == "" && c.Source == "" {
warnings = append(warnings, "Both source file and contents are blank; target will have no content")
}
if c.Content != "" && c.Source != "" {
errs = packer.MultiErrorAppend(errs, ErrContentSourceConflict)
}
if errs != nil && len(errs.Errors) > 0 {
return nil, warnings, errs
}
return c, warnings, nil
}