52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package main
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import (
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"github.com/BurntSushi/toml"
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"github.com/mitchellh/packer/packer"
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"github.com/mitchellh/packer/packer/plugin"
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"log"
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"os/exec"
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)
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// This is the default, built-in configuration that ships with
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// Packer.
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const defaultConfig = `
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[commands]
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build = "packer-command-build"
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`
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type config struct {
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Builders map[string]string
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Commands map[string]string
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}
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// Parses a configuration file and returns a proper configuration
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// struct.
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func parseConfig(data string) (result *config, err error) {
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result = new(config)
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_, err = toml.Decode(data, &result)
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return
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}
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// Returns an array of defined command names.
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func (c *config) CommandNames() (result []string) {
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result = make([]string, 0, len(c.Commands))
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for name, _ := range c.Commands {
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result = append(result, name)
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}
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return
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}
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// This is a proper packer.CommandFunc that can be used to load packer.Command
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// implementations from the defined plugins.
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func (c *config) LoadCommand(name string) (packer.Command, error) {
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log.Printf("Loading command: %s\n", name)
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commandBin, ok := c.Commands[name]
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if !ok {
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log.Printf("Command not found: %s\n", name)
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return nil, nil
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}
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return plugin.Command(exec.Command(commandBin))
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}
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