Add a fuzzing subcommand

1 files changed, 17 insertions, 0 deletions

diff --git a/crates/tools/src/lib.rs b/crates/tools/src/lib.rs
index e5b32c25c..fa619af33 100644
--- a/crates/tools/src/lib.rs
+++ b/crates/tools/src/lib.rs
@@ -139,3 +139,20 @@ pub fn install_format_hook() -> Result<()> {
     }
     Ok(())
 }
+
+pub fn run_fuzzer() -> Result<()> {
+    match Command::new("cargo")
+        .args(&["fuzz", "--help"])
+        .stderr(Stdio::null())
+        .stdout(Stdio::null())
+        .status()
+    {
+        Ok(status) if status.success() => (),
+        _ => run("cargo install cargo-fuzz", ".")?,
+    };
+
+    run(
+        "rustup run nightly -- cargo fuzz run parser",
+        "./crates/ra_syntax",
+    )
+}