Add flagset to init command

command/cli.go

@@ -142,3 +142,16 @@ type HCL2UpgradeArgs struct {
 	MetaArgs
 	OutputFile string
 }
+
+func (ia *InitArgs) AddFlagSets(flags *flag.FlagSet) {
+	flags.StringVar(&ia.PluginDir, "plugin-dir", "", "")
+	flags.BoolVar(&ia.GetPlugins, "get-plugins", true, "")
+	ia.MetaArgs.AddFlagSets(flags)
+}
+
+//InitArgs respresents a parsed cli line for packer init
+type InitArgs struct {
+	MetaArgs
+	PluginDir  string
+	GetPlugins bool
+}

command/init.go

@@ -26,7 +26,7 @@ func (c *InitCommand) Run(args []string) int {
 
 func (c *InitCommand) ParseArgs(args []string) (*InitArgs, int) {
 	var cfg InitArgs
-	flags := c.Meta.FlagSet("init", FlagSetNone)
+	flags := c.Meta.FlagSet("init", FlagSetVars)
 	flags.Usage = func() { c.Ui.Say(c.Help()) }
 	cfg.AddFlagSets(flags)
 	if err := flags.Parse(args); err != nil {
@@ -39,7 +39,7 @@ func (c *InitCommand) ParseArgs(args []string) (*InitArgs, int) {
 func (c *InitCommand) RunContext(ctx context.Context, cla *InitArgs) int {
 	fmt.Printf(`%s
 
-Packer initialized in an empty directory!
+Packer initialized with no template!
 
 The directory has no Packer templates. You may begin working
 with Packer immediately by creating a Packer template.
@@ -58,18 +58,19 @@ Usage: packer init [options]
   This is the first command that should be executed when working with a new
   or existing template. Running this command in an empty directory will
   will perform no operation, and will need to be executed once a template
-  has been added to the directory to initialize the working directory.
+  has been created to initialize the working directory.
 
-  It is safe to run init multiple times within a given directory.
+  It is safe to run init multiple times on a template to update the builders,
+  provisioners, post-processors with changes in the template configuration file.
+
+Options:
+  -get-plugins=false                Skips plugin installation.
+  -plugin-dir=PATH                  Skips plugin installation and loads plugins only from the specified directory.
 `
 	return helpText
 
 }
 
-type InitArgs struct {
-	MetaArgs
-}
-
 func (c *InitCommand) Synopsis() string {
 	return "Initializes a Packer working directory"
 }