1 files changed, 47 insertions, 0 deletions
diff --git a/third_party/rust/clap_builder/src/util/mod.rs b/third_party/rust/clap_builder/src/util/mod.rs
new file mode 100644
index 0000000000..a92aef8c3e
--- /dev/null
+++ b/third_party/rust/clap_builder/src/util/mod.rs
@@ -0,0 +1,47 @@
+#![allow(clippy::single_component_path_imports)]
+
+mod any_value;
+pub(crate) mod flat_map;
+pub(crate) mod flat_set;
+mod graph;
+mod id;
+mod str_to_bool;
+
+pub use self::id::Id;
+
+pub(crate) use self::any_value::AnyValue;
+pub(crate) use self::any_value::AnyValueId;
+pub(crate) use self::flat_map::Entry;
+pub(crate) use self::flat_map::FlatMap;
+pub(crate) use self::flat_set::FlatSet;
+pub(crate) use self::graph::ChildGraph;
+pub(crate) use self::str_to_bool::str_to_bool;
+pub(crate) use self::str_to_bool::FALSE_LITERALS;
+pub(crate) use self::str_to_bool::TRUE_LITERALS;
+
+pub(crate) mod color;
+
+pub(crate) const SUCCESS_CODE: i32 = 0;
+// While sysexists.h defines EX_USAGE as 64, this doesn't seem to be used much in practice but
+// instead 2 seems to be frequently used.
+// Examples
+// - GNU `ls` returns 2
+// - Python's `argparse` returns 2
+pub(crate) const USAGE_CODE: i32 = 2;
+
+pub(crate) fn safe_exit(code: i32) -> ! {
+    use std::io::Write;
+
+    let _ = std::io::stdout().lock().flush();
+    let _ = std::io::stderr().lock().flush();
+
+    std::process::exit(code)
+}
+
+#[cfg(not(feature = "unicode"))]
+pub(crate) fn eq_ignore_case(left: &str, right: &str) -> bool {
+    left.eq_ignore_ascii_case(right)
+}
+
+#[cfg(feature = "unicode")]
+pub(crate) use unicase::eq as eq_ignore_case;