[tor-commits] [tor/master] build: Add `make clippy` option for Rust linting.

[nickm at torproject.org]

commit 5f3a4e14e361c073797d89d5475ef34d7737bd23
Author: Isis Lovecruft <isis at torproject.org>
Date:   Mon Jun 11 19:16:43 2018 +0000

    build: Add `make clippy` option for Rust linting.
    
    Note that clippy is quite loud/obnoxious, as its name would imply.
    This target isn't meant to run on CI, or even necessarily exit
    cleanly.  It's merely a way for developers to check if they've made
    any glaring mistakes, or done awkward things they might not have
    otherwise realised.  We *can* configure it to be quieter in the
    future, but it's probably not worth rabbitholing on.
    
     * CLOSES #22156: https://bugs.torproject.org/22156
---
 Makefile.am | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 58ff9fb3e..c533f577b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -238,6 +238,20 @@ check-typos:
 		echo "You can install the latest version of misspell here: https://github.com/client9/misspell#install"; \
 	fi
 
+.PHONY: clippy
+clippy:
+if USE_RUST
+	@if test -x "`which cargo-clippy 2>&1;true`"; then \
+		echo "Running cargo clippy ..."; \
+		echo "Prepare yourself for the onslaught of suggestions ..."; \
+		(cd "$(top_srcdir)/src/rust" && cargo clippy); \
+	else \
+		echo "Tor can use clippy to lint Rust code."; \
+		echo "However, it seems that you don't have clippy installed."; \
+		echo "You can install the latest version of clippy by following the directions here: https://github.com/rust-lang-nursery/rust-clippy"; \
+	fi
+endif
+
 .PHONY: check-changes
 check-changes:
 if USEPYTHON