From 9ce5f9be65d30bf9c4522ae1fd6f4490f696e30b Mon Sep 17 00:00:00 2001
From: Leynos <leynos@troubledskies.net>
Date: Wed, 13 Aug 2025 21:00:35 +0100
Subject: [PATCH 1/2] Check llvm-tools-preview component for coverage

---
 Makefile | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 917a113..1ab625d 100644
--- a/Makefile
+++ b/Makefile
@@ -9,10 +9,14 @@ NIXIE ?= nixie
 COV_MIN ?= 0 # Minimum line coverage percentage for coverage targets
 
 define CHECK_CARGO_LLVM_COV
-	@command -v cargo-llvm-cov >/dev/null || { \
-	echo "error: cargo-llvm-cov not found. Install with: cargo install cargo-llvm-cov"; \
-	exit 127; \
-	}
+        @command -v cargo-llvm-cov >/dev/null || { \
+        echo "error: cargo-llvm-cov not found. Install with: cargo install cargo-llvm-cov"; \
+        exit 127; \
+        }
+        @rustup component list --installed | grep -q '^llvm-tools-preview' >/dev/null || { \
+        echo "error: rustup component llvm-tools-preview not found. Install with: rustup component add llvm-tools-preview"; \
+        exit 127; \
+        }
 endef
 
 build: target/debug/$(APP) ## Build debug binary

From 847a986dc808e940d5c91af90d03fdeab7d833d2 Mon Sep 17 00:00:00 2001
From: Leynos <leynos@troubledskies.net>
Date: Thu, 14 Aug 2025 01:51:22 +0100
Subject: [PATCH 2/2] Add a rustup presence check and send errors to stderr;
 drop redundant redirection.

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
---
 Makefile | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 1ab625d..268b66f 100644
--- a/Makefile
+++ b/Makefile
@@ -10,11 +10,15 @@ COV_MIN ?= 0 # Minimum line coverage percentage for coverage targets
 
 define CHECK_CARGO_LLVM_COV
         @command -v cargo-llvm-cov >/dev/null || { \
-        echo "error: cargo-llvm-cov not found. Install with: cargo install cargo-llvm-cov"; \
+        echo "error: cargo-llvm-cov not found. Install with: cargo install cargo-llvm-cov" >&2; \
         exit 127; \
         }
-        @rustup component list --installed | grep -q '^llvm-tools-preview' >/dev/null || { \
-        echo "error: rustup component llvm-tools-preview not found. Install with: rustup component add llvm-tools-preview"; \
+        @command -v rustup >/dev/null || { \
+        echo "error: rustup not found. Install from: https://rustup.rs" >&2; \
+        exit 127; \
+        }
+        @rustup component list --installed | grep -q '^llvm-tools-preview' || { \
+        echo "error: rustup component llvm-tools-preview not found. Install with: rustup component add llvm-tools-preview" >&2; \
         exit 127; \
         }
 endef