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config.go
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/
config.go
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package pvm
import (
"fmt"
"os"
parallelscommon "github.com/mitchellh/packer/builder/parallels/common"
"github.com/mitchellh/packer/common"
"github.com/mitchellh/packer/packer"
)
// Config is the configuration structure for the builder.
type Config struct {
common.PackerConfig `mapstructure:",squash"`
parallelscommon.FloppyConfig `mapstructure:",squash"`
parallelscommon.OutputConfig `mapstructure:",squash"`
parallelscommon.PrlctlConfig `mapstructure:",squash"`
parallelscommon.PrlctlVersionConfig `mapstructure:",squash"`
parallelscommon.RunConfig `mapstructure:",squash"`
parallelscommon.SSHConfig `mapstructure:",squash"`
parallelscommon.ShutdownConfig `mapstructure:",squash"`
parallelscommon.ToolsConfig `mapstructure:",squash"`
BootCommand []string `mapstructure:"boot_command"`
SourcePath string `mapstructure:"source_path"`
VMName string `mapstructure:"vm_name"`
ReassignMac bool `mapstructure:"reassign_mac"`
tpl *packer.ConfigTemplate
}
func NewConfig(raws ...interface{}) (*Config, []string, error) {
c := new(Config)
md, err := common.DecodeConfig(c, raws...)
if err != nil {
return nil, nil, err
}
c.tpl, err = packer.NewConfigTemplate()
if err != nil {
return nil, nil, err
}
c.tpl.UserVars = c.PackerUserVars
if c.VMName == "" {
c.VMName = fmt.Sprintf("packer-%s-{{timestamp}}", c.PackerBuildName)
}
// Prepare the errors
errs := common.CheckUnusedConfig(md)
errs = packer.MultiErrorAppend(errs, c.FloppyConfig.Prepare(c.tpl)...)
errs = packer.MultiErrorAppend(errs, c.OutputConfig.Prepare(c.tpl, &c.PackerConfig)...)
errs = packer.MultiErrorAppend(errs, c.PrlctlConfig.Prepare(c.tpl)...)
errs = packer.MultiErrorAppend(errs, c.PrlctlVersionConfig.Prepare(c.tpl)...)
errs = packer.MultiErrorAppend(errs, c.RunConfig.Prepare(c.tpl)...)
errs = packer.MultiErrorAppend(errs, c.ShutdownConfig.Prepare(c.tpl)...)
errs = packer.MultiErrorAppend(errs, c.SSHConfig.Prepare(c.tpl)...)
errs = packer.MultiErrorAppend(errs, c.ToolsConfig.Prepare(c.tpl)...)
templates := map[string]*string{
"source_path": &c.SourcePath,
"vm_name": &c.VMName,
}
for n, ptr := range templates {
var err error
*ptr, err = c.tpl.Process(*ptr, nil)
if err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Error processing %s: %s", n, err))
}
}
for i, command := range c.BootCommand {
if err := c.tpl.Validate(command); err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("Error processing boot_command[%d]: %s", i, err))
}
}
if c.SourcePath == "" {
errs = packer.MultiErrorAppend(errs, fmt.Errorf("source_path is required"))
} else {
if _, err := os.Stat(c.SourcePath); err != nil {
errs = packer.MultiErrorAppend(errs,
fmt.Errorf("source_path is invalid: %s", err))
}
}
// Warnings
var warnings []string
if c.ShutdownCommand == "" {
warnings = append(warnings,
"A shutdown_command was not specified. Without a shutdown command, Packer\n"+
"will forcibly halt the virtual machine, which may result in data loss.")
}
// Check for any errors.
if errs != nil && len(errs.Errors) > 0 {
return nil, warnings, errs
}
return c, warnings, nil
}