5 files changed, 33 insertions, 8 deletions
diff --git a/Makefile b/Makefile
index 5b37cf5..3931172 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ recover:
 	make goimports
 	make build
 
-build:
+build: goimports vet
 	GO111MODULE=off go build \
 		-ldflags "-X main.VERSION=${VERSION} -X main.BUILDTIME=${BUILDTIME} -X gui.GUIVERSION=${VERSION}"
 	# autogen uses autogen to build. keep a working copy somewhere
diff --git a/argv.go b/argv.go
index 0cb2c9b..8542fe5 100644
--- a/argv.go
+++ b/argv.go
@@ -3,6 +3,12 @@
 
 package main
 
+import (
+	"os"
+
+	"go.wit.com/lib/gui/prep"
+)
+
 /*
 	this parses the command line arguements
 
@@ -48,3 +54,20 @@ Example usage:
 func (args) Version() string {
 	return "go.wit.com/apps/autogenpb " + VERSION + "    Built on " + BUILDTIME
 }
+
+/*
+	handles shell autocomplete
+*/
+
+func (args) Appname() string {
+	return ARGNAME
+}
+
+func (a args) DoAutoComplete(pb *prep.Auto) {
+	if pb.Cmd == "" {
+		pb.Autocomplete3([]string{"--bash", "--proto", "--regret", "--debug", "--delete", "--dry-run"})
+	} else {
+		pb.SubCommand(pb.Argv...)
+	}
+	os.Exit(0)
+}
diff --git a/build b/build
new file mode 100755
index 0000000..1719218
--- /dev/null
+++ b/build
@@ -0,0 +1,4 @@
+#!/bin/bash -x
+
+mkdir -p files/usr/share/bash-completion/completions/
+autogenpb --bash > files/usr/share/bash-completion/completions/autogenpb
diff --git a/generateMarshal.go b/generateMarshal.go
index 39929eb..0c58959 100644
--- a/generateMarshal.go
+++ b/generateMarshal.go
@@ -11,10 +11,6 @@ import (
 
 // makes Marshal and Unmarshal functions for protoWIRE protoTEXT and protoJSON
 func (pb *Files) marshal(f *File) {
-	if argv.DryRun {
-		return
-	}
-
 	w, _ := os.OpenFile(f.Filebase+".marshal.pb.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
 
 	headerComment(w)
diff --git a/main.go b/main.go
index e879de4..ba72ece 100644
--- a/main.go
+++ b/main.go
@@ -20,8 +20,8 @@ import (
 	"strings"
 
 	"github.com/go-cmd/cmd"
-	"go.wit.com/dev/alexflint/arg"
 	"go.wit.com/lib/fhelp"
+	"go.wit.com/lib/gui/prep"
 	"go.wit.com/lib/gui/shell"
 	"go.wit.com/log"
 )
@@ -30,10 +30,12 @@ import (
 var VERSION string
 var BUILDTIME string
 
+var ARGNAME string = "autogenpb"
+
 // var fsort *os.File // the sort.pb.go output file
 
 func main() {
-	pp := arg.MustParse(&argv)
+	auto := prep.Bash3(&argv) // add support for bash autocomplete with go-arg
 
 	var pb *Files
 	pb = new(Files)
@@ -48,7 +50,7 @@ func main() {
 	// you need a proto file
 	if argv.Proto == "" {
 		log.Info("you must provide --proto <filename>")
-		pp.WriteHelp(os.Stdout)
+		auto.WriteHelp()
 		os.Exit(-1)
 	}