74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
|
package common
|
||
|
|
|
||
|
|
import (
|
||
|
|
"errors"
|
||
|
|
"fmt"
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"github.com/mitchellh/packer/template/interpolate"
|
||
|
|
)
|
||
|
|
|
||
|
|
// ISOConfig contains configuration for downloading ISO images.
|
||
|
|
type ISOConfig struct {
|
||
|
|
ISOChecksum string `mapstructure:"iso_checksum"`
|
||
|
|
ISOChecksumType string `mapstructure:"iso_checksum_type"`
|
||
|
|
ISOUrls []string `mapstructure:"iso_urls"`
|
||
|
|
TargetPath string `mapstructure:"iso_target_path"`
|
||
|
|
RawSingleISOUrl string `mapstructure:"iso_url"`
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *ISOConfig) Prepare(ctx *interpolate.Context) ([]string, []error) {
|
||
|
|
// Validation
|
||
|
|
var errs []error
|
||
|
|
var err error
|
||
|
|
var warnings []string
|
||
|
|
|
||
|
|
if c.ISOChecksumType == "" {
|
||
|
|
errs = append(
|
||
|
|
errs, errors.New("The iso_checksum_type must be specified."))
|
||
|
|
} else {
|
||
|
|
c.ISOChecksumType = strings.ToLower(c.ISOChecksumType)
|
||
|
|
if c.ISOChecksumType != "none" {
|
||
|
|
if c.ISOChecksum == "" {
|
||
|
|
errs = append(
|
||
|
|
errs, errors.New("Due to large file sizes, an iso_checksum is required"))
|
||
|
|
} else {
|
||
|
|
c.ISOChecksum = strings.ToLower(c.ISOChecksum)
|
||
|
|
}
|
||
|
|
|
||
|
|
if h := HashForType(c.ISOChecksumType); h == nil {
|
||
|
|
errs = append(
|
||
|
|
errs,
|
||
|
|
fmt.Errorf("Unsupported checksum type: %s", c.ISOChecksumType))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if c.RawSingleISOUrl == "" && len(c.ISOUrls) == 0 {
|
||
|
|
errs = append(
|
||
|
|
errs, errors.New("One of iso_url or iso_urls must be specified."))
|
||
|
|
} else if c.RawSingleISOUrl != "" && len(c.ISOUrls) > 0 {
|
||
|
|
errs = append(
|
||
|
|
errs, errors.New("Only one of iso_url or iso_urls may be specified."))
|
||
|
|
} else if c.RawSingleISOUrl != "" {
|
||
|
|
c.ISOUrls = []string{c.RawSingleISOUrl}
|
||
|
|
}
|
||
|
|
|
||
|
|
for i, url := range c.ISOUrls {
|
||
|
|
c.ISOUrls[i], err = DownloadableURL(url)
|
||
|
|
if err != nil {
|
||
|
|
errs = append(
|
||
|
|
errs, fmt.Errorf("Failed to parse iso_url %d: %s", i+1, err))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Warnings
|
||
|
|
if c.ISOChecksumType == "none" {
|
||
|
|
warnings = append(warnings,
|
||
|
|
"A checksum type of 'none' was specified. Since ISO files are so big,\n"+
|
||
|
|
"a checksum is highly recommended.")
|
||
|
|
}
|
||
|
|
|
||
|
|
return warnings, errs
|
||
|
|
}
|