Implement -noleaf (#414)

src/find/matchers/mod.rs

@@ -692,6 +692,11 @@ fn build_matcher_tree(
 
                 return Ok((i, top_level_matcher.build()));
             }
+            "-noleaf" => {
+                // No change of behavior
+                config.no_leaf_dirs = true;
+                None
+            }
             "-d" | "-depth" => {
                 // TODO add warning if it appears after actual testing criterion
                 config.depth_first = true;

src/find/mod.rs

@@ -21,6 +21,7 @@ pub struct Config {
     sorted_output: bool,
     help_requested: bool,
     version_requested: bool,
+    no_leaf_dirs: bool,
 }
 
 impl Default for Config {
@@ -33,6 +34,10 @@ impl Default for Config {
             sorted_output: false,
             help_requested: false,
             version_requested: false,
+            // Directory information and traversal are done by walkdir,
+            // and this configuration field will exist as
+            // a compatibility item for GNU findutils.
+            no_leaf_dirs: false,
         }
     }
 }
@@ -156,6 +161,7 @@ fn process_dir<'a>(
             }
             Ok(entry) => {
                 let mut matcher_io = matchers::MatcherIO::new(deps);
+
                 if matcher.matches(&entry, &mut matcher_io) {
                     found_count += 1;
                 }
@@ -1219,4 +1225,15 @@ mod tests {
 
         assert_eq!(rc, 0);
     }
+
+    #[test]
+    #[cfg(unix)]
+    fn test_noleaf() {
+        use crate::find::tests::FakeDependencies;
+
+        let deps = FakeDependencies::new();
+        let rc = find_main(&["find", "./test_data/simple/subdir", "-noleaf"], &deps);
+
+        assert_eq!(rc, 0);
+    }
 }

tests/find_cmd_tests.rs

@@ -881,3 +881,15 @@ fn find_samefile() {
         .stdout(predicate::str::is_empty())
         .stderr(predicate::str::contains("not-exist-file"));
 }
+
+#[test]
+#[serial(working_dir)]
+fn find_noleaf() {
+    Command::cargo_bin("find")
+        .expect("found binary")
+        .args(["test_data/simple/subdir", "-noleaf"])
+        .assert()
+        .success()
+        .stdout(predicate::str::contains("test_data/simple/subdir"))
+        .stderr(predicate::str::is_empty());
+}