138 lines
3.2 KiB
Go
138 lines
3.2 KiB
Go
package command
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"strings"
|
|
|
|
"github.com/mitchellh/packer/packer"
|
|
"github.com/mitchellh/packer/template"
|
|
)
|
|
|
|
type ValidateCommand struct {
|
|
Meta
|
|
}
|
|
|
|
func (c *ValidateCommand) Run(args []string) int {
|
|
var cfgSyntaxOnly bool
|
|
flags := c.Meta.FlagSet("validate", FlagSetBuildFilter|FlagSetVars)
|
|
flags.Usage = func() { c.Ui.Say(c.Help()) }
|
|
flags.BoolVar(&cfgSyntaxOnly, "syntax-only", false, "check syntax only")
|
|
if err := flags.Parse(args); err != nil {
|
|
return 1
|
|
}
|
|
|
|
args = flags.Args()
|
|
if len(args) != 1 {
|
|
flags.Usage()
|
|
return 1
|
|
}
|
|
|
|
// Parse the template
|
|
tpl, err := template.ParseFile(args[0])
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Failed to parse template: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// If we're only checking syntax, then we're done already
|
|
if cfgSyntaxOnly {
|
|
c.Ui.Say("Syntax-only check passed. Everything looks okay.")
|
|
return 0
|
|
}
|
|
|
|
// Get the core
|
|
core, err := c.Meta.Core(tpl)
|
|
if err != nil {
|
|
c.Ui.Error(err.Error())
|
|
return 1
|
|
}
|
|
|
|
errs := make([]error, 0)
|
|
warnings := make(map[string][]string)
|
|
|
|
// Get the builds we care about
|
|
buildNames := c.Meta.BuildNames(core)
|
|
builds := make([]packer.Build, 0, len(buildNames))
|
|
for _, n := range buildNames {
|
|
b, err := core.Build(n)
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf(
|
|
"Failed to initialize build '%s': %s",
|
|
n, err))
|
|
}
|
|
|
|
builds = append(builds, b)
|
|
}
|
|
|
|
// Check the configuration of all builds
|
|
for _, b := range builds {
|
|
log.Printf("Preparing build: %s", b.Name())
|
|
warns, err := b.Prepare()
|
|
if len(warns) > 0 {
|
|
warnings[b.Name()] = warns
|
|
}
|
|
if err != nil {
|
|
errs = append(errs, fmt.Errorf("Errors validating build '%s'. %s", b.Name(), err))
|
|
}
|
|
}
|
|
|
|
if len(errs) > 0 {
|
|
c.Ui.Error("Template validation failed. Errors are shown below.\n")
|
|
for i, err := range errs {
|
|
c.Ui.Error(err.Error())
|
|
|
|
if (i + 1) < len(errs) {
|
|
c.Ui.Error("")
|
|
}
|
|
}
|
|
|
|
return 1
|
|
}
|
|
|
|
if len(warnings) > 0 {
|
|
c.Ui.Say("Template validation succeeded, but there were some warnings.")
|
|
c.Ui.Say("These are ONLY WARNINGS, and Packer will attempt to build the")
|
|
c.Ui.Say("template despite them, but they should be paid attention to.\n")
|
|
|
|
for build, warns := range warnings {
|
|
c.Ui.Say(fmt.Sprintf("Warnings for build '%s':\n", build))
|
|
for _, warning := range warns {
|
|
c.Ui.Say(fmt.Sprintf("* %s", warning))
|
|
}
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
c.Ui.Say("Template validated successfully.")
|
|
return 0
|
|
}
|
|
|
|
func (*ValidateCommand) Help() string {
|
|
helpText := `
|
|
Usage: packer validate [options] TEMPLATE
|
|
|
|
Checks the template is valid by parsing the template and also
|
|
checking the configuration with the various builders, provisioners, etc.
|
|
|
|
If it is not valid, the errors will be shown and the command will exit
|
|
with a non-zero exit status. If it is valid, it will exit with a zero
|
|
exit status.
|
|
|
|
Options:
|
|
|
|
-syntax-only Only check syntax. Do not verify config of the template.
|
|
-except=foo,bar,baz Validate all builds other than these
|
|
-only=foo,bar,baz Validate only these builds
|
|
-var 'key=value' Variable for templates, can be used multiple times.
|
|
-var-file=path JSON file containing user variables.
|
|
`
|
|
|
|
return strings.TrimSpace(helpText)
|
|
}
|
|
|
|
func (*ValidateCommand) Synopsis() string {
|
|
return "check that a template is valid"
|
|
}
|