diff options
| -rw-r--r-- | src/bootstrap/flags.rs | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/bootstrap/flags.rs b/src/bootstrap/flags.rs index dc9dac73627..cb455ca6a14 100644 --- a/src/bootstrap/flags.rs +++ b/src/bootstrap/flags.rs @@ -122,16 +122,15 @@ To learn more about a subcommand, run `./x.py <subcommand> -h`"); // the subcommand. Therefore we must manually identify the subcommand first, so that we can // complete the definition of the options. Then we can use the getopt::Matches object from // there on out. - let mut possible_subcommands = args.iter().collect::<Vec<_>>(); - possible_subcommands.retain(|&s| - (s == "build") - || (s == "test") - || (s == "bench") - || (s == "doc") - || (s == "clean") - || (s == "dist") - || (s == "install")); - let subcommand = match possible_subcommands.first() { + let subcommand = args.iter().find(|&s| + (s == "build") + || (s == "test") + || (s == "bench") + || (s == "doc") + || (s == "clean") + || (s == "dist") + || (s == "install")); + let subcommand = match subcommand { Some(s) => s, None => { // No subcommand -- show the general usage and subcommand help |