86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
package fix
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import (
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"bytes"
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"encoding/json"
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"flag"
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"fmt"
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"github.com/mitchellh/packer/packer"
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"os"
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"strings"
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)
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type Command byte
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func (Command) Help() string {
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return strings.TrimSpace(helpString)
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}
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func (c Command) Run(env packer.Environment, args []string) int {
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cmdFlags := flag.NewFlagSet("fix", flag.ContinueOnError)
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cmdFlags.Usage = func() { env.Ui().Say(c.Help()) }
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if err := cmdFlags.Parse(args); err != nil {
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return 1
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}
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args = cmdFlags.Args()
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if len(args) != 1 {
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cmdFlags.Usage()
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return 1
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}
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// Read the file for decoding
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tplF, err := os.Open(args[0])
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if err != nil {
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env.Ui().Error(fmt.Sprintf("Error opening template: %s", err))
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return 1
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}
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defer tplF.Close()
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// Decode the JSON into a generic map structure
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var templateData map[string]interface{}
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decoder := json.NewDecoder(tplF)
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if err := decoder.Decode(&templateData); err != nil {
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env.Ui().Error(fmt.Sprintf("Error parsing template: %s", err))
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return 1
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}
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// Close the file since we're done with that
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tplF.Close()
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// Run the template through the various fixers
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fixers := []Fixer{Fixers["iso-md5"]}
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input := templateData
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for _, fixer := range fixers {
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var err error
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input, err = fixer.Fix(input)
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if err != nil {
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env.Ui().Error(fmt.Sprintf("Error fixing: %s", err))
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return 1
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}
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}
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var output bytes.Buffer
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encoder := json.NewEncoder(&output)
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if err := encoder.Encode(input); err != nil {
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env.Ui().Error(fmt.Sprintf("Error encoding: %s", err))
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return 1
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}
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var indented bytes.Buffer
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if err := json.Indent(&indented, output.Bytes(), "", " "); err != nil {
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env.Ui().Error(fmt.Sprintf("Error encoding: %s", err))
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return 1
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}
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result := indented.String()
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result = strings.Replace(result, `\u003c`, "<", -1)
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result = strings.Replace(result, `\u003e`, ">", -1)
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env.Ui().Say(result)
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return 0
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}
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func (c Command) Synopsis() string {
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return "fixes templates from old versions of packer"
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}
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