From 1b4cedc7568dbbabc7c427f77ac7e60bf8bf450b Mon Sep 17 00:00:00 2001
From: Bo-Yi Wu <appleboy.tw@gmail.com>
Date: Sat, 28 Jul 2018 22:44:04 +0800
Subject: [PATCH] feat: add force flag

---
 main.go        |  6 ++++++
 plugin.go      |  5 +++++
 plugin_test.go | 10 ++++++++++
 3 files changed, 21 insertions(+)

diff --git a/main.go b/main.go
index 31ae1ef..8d3726d 100644
--- a/main.go
+++ b/main.go
@@ -75,6 +75,11 @@ func main() {
 			Usage:  "Machine-readable output",
 			EnvVar: "PLUGIN_READABLE",
 		},
+		cli.BoolFlag{
+			Name:   "force",
+			Usage:  "Force a build to continue if artifacts exist, deletes existing artifacts",
+			EnvVar: "PLUGIN_FORCE",
+		},
 	}
 
 	app.Version = Version
@@ -119,6 +124,7 @@ func run(c *cli.Context) error {
 			Debug:      c.Bool("debug"),
 			Parallel:   c.Bool("parallel"),
 			Readable:   c.Bool("readable"),
+			Force:      c.Bool("force"),
 		},
 	}
 
diff --git a/plugin.go b/plugin.go
index 053e353..bb643bb 100644
--- a/plugin.go
+++ b/plugin.go
@@ -24,6 +24,7 @@ type (
 		Debug      bool
 		Parallel   bool
 		Readable   bool
+		Force      bool
 	}
 
 	// Plugin values
@@ -103,6 +104,10 @@ func pkBuild(config Config) *exec.Cmd {
 		args = append(args, "-machine-readable")
 	}
 
+	if config.Force {
+		args = append(args, "-force")
+	}
+
 	args = append(args, config.Template)
 	return exec.Command(
 		"packer",
diff --git a/plugin_test.go b/plugin_test.go
index 9311b79..4a6b535 100644
--- a/plugin_test.go
+++ b/plugin_test.go
@@ -113,6 +113,16 @@ func Test_pkBuild(t *testing.T) {
 			},
 			want: exec.Command("packer", "build", "-machine-readable", "foo.json"),
 		},
+		{
+			name: "add force flag",
+			args: args{
+				config: Config{
+					Template: "foo.json",
+					Force:    true,
+				},
+			},
+			want: exec.Command("packer", "build", "-force", "foo.json"),
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {