Factor each commmand into its own package

cmd/check/check.go

@@ -0,0 +1,30 @@
+package check
+
+import (
+	"github.com/ncw/rclone/cmd"
+	"github.com/ncw/rclone/fs"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	cmd.Root.AddCommand(checkCmd)
+}
+
+var checkCmd = &cobra.Command{
+	Use:   "check source:path dest:path",
+	Short: `Checks the files in the source and destination match.`,
+	Long: `
+Checks the files in the source and destination match.  It
+compares sizes and MD5SUMs and prints a report of files which
+don't match.  It doesn't alter the source or destination.
+
+` + "`" + `--size-only` + "`" + ` may be used to only compare the sizes, not the MD5SUMs.
+`,
+	Run: func(command *cobra.Command, args []string) {
+		cmd.CheckArgs(2, 2, command, args)
+		fsrc, fdst := cmd.NewFsSrcDst(args)
+		cmd.Run(false, command, func() error {
+			return fs.Check(fdst, fsrc)
+		})
+	},
+}