From 715d12f29a39bc15b85c7f37c2a0bf698656a1c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Hru=C5=A1ka?= <ondra@ondrovo.com>
Date: Sun, 4 Jan 2026 21:56:17 +0100
Subject: [PATCH] add makefile, improve gitignore, formatting

---
 .gitignore            |  3 ++-
 CMakeLists.txt        |  8 ++++----
 Makefile              | 25 +++++++++++++++++++++++++
 src/main_simpletest.c |  2 ++
 4 files changed, 33 insertions(+), 5 deletions(-)
 create mode 100644 Makefile

diff --git a/.gitignore b/.gitignore
index dfcdc9f..9bab3b4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /cmake-build-debug/
-.idea
+/build/
+/.idea
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 89450be..d719d16 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,10 +9,10 @@ add_executable(modbus
     src/modbus.c
     src/main.c
     src/stcpsc.c
-        src/hexdump.c
-        src/hexdump.h
-        src/parsehex.c
-        src/parsehex.h)
+    src/hexdump.c
+    src/hexdump.h
+    src/parsehex.c
+    src/parsehex.h)
 
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..0e3d288
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,25 @@
+BUILD_DIR := build
+EXECUTABLE := modbus
+
+.PHONY: all build run clean rebuild debug release help
+all: build
+
+# Configure and build the project
+build:
+	@mkdir -p $(BUILD_DIR)
+	@cd $(BUILD_DIR) && cmake ..
+	@cmake --build $(BUILD_DIR)
+	@echo "Build complete. Executable: $(BUILD_DIR)/$(EXECUTABLE)"
+
+# Run the built executable, build if needed
+run: build
+	@echo "Running $(EXECUTABLE)..."
+	@./$(BUILD_DIR)/$(EXECUTABLE)
+
+# Clean build artifacts
+clean:
+	@rm -rf $(BUILD_DIR)
+	@echo "Build directory cleaned"
+
+# Rebuild from scratch
+rebuild: clean build
diff --git a/src/main_simpletest.c b/src/main_simpletest.c
index 053d9a7..840115a 100644
--- a/src/main_simpletest.c
+++ b/src/main_simpletest.c
@@ -1,3 +1,5 @@
+// This test shows how the library could be used to implement a Modbus RTU device
+
 #include <stdio.h>
 #include "modbus.h"
 #include "hexdump.h"