move main to cmd directory

.goreleaser.yaml

@@ -10,6 +10,7 @@ builds:
       - linux
       - windows
       - netbsd
+    main: ./cmd/main.go
 archives:
   - name_template: "{{ .Os }}-{{ .Arch }}"
     format: binary

cmd/main.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"os"
+
+	"github.com/MakeNowJust/heredoc"
+	"github.com/mdb/gh-dispatch/dispatch"
+	"github.com/spf13/cobra"
+)
+
+// version's value is passed in at build time.
+var version string
+
+func main() {
+	rootCmd := &cobra.Command{
+		Use:   "gh dispatch",
+		Short: "Send a GitHub dispatch event and watch the resulting GitHub Actions run",
+		Long: heredoc.Doc(`
+		Send a workflow_dispatch or repository_dispatch event and watch the resulting
+		GitHub Actions run.
+	`),
+		SilenceUsage: true,
+		Version:      version,
+	}
+
+	// TODO: how to make this required?
+	rootCmd.PersistentFlags().StringP("repo", "R", "", "The targeted repository's full name (in 'owner/repo' format)")
+
+	repositoryCmd := dispatch.NewCmdRepository()
+	rootCmd.AddCommand(repositoryCmd)
+
+	workflowCmd := dispatch.NewCmdWorkflow()
+	rootCmd.AddCommand(workflowCmd)
+
+	if err := rootCmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}