packer-cn/builder/file/config.go

58 lines
1.4 KiB
Go

//go:generate mapstructure-to-hcl2 -type Config
package file
import (
"fmt"
"github.com/hashicorp/packer-plugin-sdk/common"
packersdk "github.com/hashicorp/packer-plugin-sdk/packer"
"github.com/hashicorp/packer-plugin-sdk/template/config"
"github.com/hashicorp/packer-plugin-sdk/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 (c *Config) Prepare(raws ...interface{}) ([]string, error) {
warnings := []string{}
err := config.Decode(c, &config.DecodeOpts{
Interpolate: true,
InterpolateFilter: &interpolate.RenderFilter{
Exclude: []string{},
},
}, raws...)
if err != nil {
return warnings, err
}
var errs *packersdk.MultiError
if c.Target == "" {
errs = packersdk.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 = packersdk.MultiErrorAppend(errs, ErrContentSourceConflict)
}
if errs != nil && len(errs.Errors) > 0 {
return warnings, errs
}
return warnings, nil
}