From 9ede321e5d3a94aa083996ae13e07aec5c6892fe Mon Sep 17 00:00:00 2001
From: Lars Melchior <TheLartians@users.noreply.github.com>
Date: Wed, 3 Jun 2020 10:29:12 +0200
Subject: [PATCH] Add static analyser support (#41)

* add static analyzers

* use 'ON/OFF' for Ccache settings
---
 README.md         |  7 ++++---
 cmake/tools.cmake | 32 +++++++++++++++++++++++++++++---
 2 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index e067caa..079be2e 100644
--- a/README.md
+++ b/README.md
@@ -83,11 +83,12 @@ See [Format.cmake](https://github.com/TheLartians/Format.cmake) for more options
 
 ### Additional tools
 
-The project includes an [tools.cmake](cmake/tools.cmake) file that can be used to import additional tools on-demand through CMake configuration arguments.
+The test and standalone subprojects include the [tools.cmake](cmake/tools.cmake) file which is used to import additional tools on-demand through CMake configuration arguments.
 The following are currently supported.
 
-- `-DUSE_SANITIZER=<Address | Memory | MemoryWithOrigins | Undefined | Thread | Leak | 'Address;Undefined'>`
-- `-DUSE_CCACHE=<YES | NO>`
+- **Sanitizers**, by setting `-DUSE_SANITIZER=<Address | Memory | MemoryWithOrigins | Undefined | Thread | Leak | 'Address;Undefined'>`.
+- **Static Analyzers**, by setting `-DUSE_STATIC_ANALYZER=<clang-tidy | iwyu | cppcheck>`, or a combination of those in quotation marks, separated by semicolons. Arguments can be passed to the analyzers by setting the `CLANG_TIDY_ARGS`, `IWYU_ARGS` or `CPPCHECK_ARGS` variables.
+- **Ccache**, by setting `-DUSE_CCACHE=<ON | OFF>`.
 
 ## FAQ
 
diff --git a/cmake/tools.cmake b/cmake/tools.cmake
index 2f2e595..b0b8c30 100644
--- a/cmake/tools.cmake
+++ b/cmake/tools.cmake
@@ -10,14 +10,40 @@ include(${CMAKE_CURRENT_LIST_DIR}/CPM.cmake)
 
 # enables sanitizers support using the the `USE_SANITIZER` flag
 # available values are: Address, Memory, MemoryWithOrigins, Undefined, Thread, Leak, 'Address;Undefined'
-if (USE_SANITIZER)
+if (USE_SANITIZER OR USE_STATIC_ANALYZER)
   CPMAddPackage(
     NAME StableCoder-cmake-scripts
     GITHUB_REPOSITORY StableCoder/cmake-scripts
-    GIT_TAG 3a469d8251660a97dbf9e0afff0a242965d40277
+    GIT_TAG 3d2d5a9fb26f0ce24e3e4eaeeff686ec2ecfb3fb
   )
   
-  include(${StableCoder-cmake-scripts_SOURCE_DIR}/sanitizers.cmake)
+  if (USE_SANITIZER)
+    include(${StableCoder-cmake-scripts_SOURCE_DIR}/sanitizers.cmake)
+  endif()
+
+  if (USE_STATIC_ANALYZER)
+    if ("clang-tidy" IN_LIST USE_STATIC_ANALYZER)
+      SET(CLANG_TIDY ON CACHE INTERNAL "")
+    else()
+      SET(CLANG_TIDY OFF CACHE INTERNAL "")
+    endif()
+    if ("iwyu" IN_LIST USE_STATIC_ANALYZER)
+      SET(IWYU ON CACHE INTERNAL "")
+    else()
+      SET(IWYU OFF CACHE INTERNAL "")
+    endif()
+    if ("cppcheck" IN_LIST USE_STATIC_ANALYZER)
+      SET(CPPCHECK ON CACHE INTERNAL "")
+    else()
+      SET(CPPCHECK OFF CACHE INTERNAL "")
+    endif()
+
+    include(${StableCoder-cmake-scripts_SOURCE_DIR}/tools.cmake)
+
+    clang_tidy(${CLANG_TIDY_ARGS})
+    include_what_you_use(${IWYU_ARGS})
+    cppcheck(${CPPCHECK_ARGS})
+  endif()
 endif()
 
 # enables CCACHE support through the USE_CCACHE flag