github.com/hashicorp/packer@v1.14.3/fix/fixer_iso_md5.go (about)

     1  // Copyright (c) HashiCorp, Inc.
     2  // SPDX-License-Identifier: BUSL-1.1
     3  
     4  package fix
     5  
     6  import (
     7  	"github.com/mitchellh/mapstructure"
     8  )
     9  
    10  // FixerISOMD5 is a Fixer that replaces the "iso_md5" configuration key
    11  // with the newer "iso_checksum" and "iso_checksum_type" within builders.
    12  type FixerISOMD5 struct{}
    13  
    14  func (FixerISOMD5) DeprecatedOptions() map[string][]string {
    15  	return map[string][]string{
    16  		"*": []string{"iso_md5"},
    17  	}
    18  }
    19  
    20  func (FixerISOMD5) Fix(input map[string]interface{}) (map[string]interface{}, error) {
    21  	// Our template type we'll use for this fixer only
    22  	type template struct {
    23  		Builders []map[string]interface{}
    24  	}
    25  
    26  	// Decode the input into our structure, if we can
    27  	var tpl template
    28  	if err := mapstructure.Decode(input, &tpl); err != nil {
    29  		return nil, err
    30  	}
    31  
    32  	// Go through each builder and replace the iso_md5 if we can
    33  	for _, builder := range tpl.Builders {
    34  		md5raw, ok := builder["iso_md5"]
    35  		if !ok {
    36  			continue
    37  		}
    38  
    39  		md5, ok := md5raw.(string)
    40  		if !ok {
    41  			// TODO: error?
    42  			continue
    43  		}
    44  
    45  		delete(builder, "iso_md5")
    46  		builder["iso_checksum"] = md5
    47  		builder["iso_checksum_type"] = "md5"
    48  	}
    49  
    50  	input["builders"] = tpl.Builders
    51  	return input, nil
    52  }
    53  
    54  func (FixerISOMD5) Synopsis() string {
    55  	return `Replaces "iso_md5" in builders with "iso_checksum"`
    56  }