chore: switch build system to cmake

There are multiple benefits of using CMake over Autotools like:
- CMake is much more modern and requires much less lines of code as
  compared to doing the same thing in autotools
- Autotools is years of bad decisions, generating a long 50k+ lines of
  bash script to generate the Makefiles definitely isn't a good idea and
  is really slow as well as makes debugging the build process very
  difficult
- Existing projects using termux-elf-cleaner using CMake should benefit
  from this.

.github/workflows/attach_termux_elf_cleaner_to_release.yml

@@ -22,12 +22,18 @@ jobs:
  echo "The versionName '${RELEASE_VERSION_NAME/v/}' is not a valid version as per semantic version '2.0.0' spec in the format 'major.minor.patch(-prerelease)(+buildmetadata)'. https://semver.org/spec/v2.0.0.html."
  exit 1
  fi
+ - name: Install required packages
+ run: |
+ sudo apt update
+ sudo apt upgrade
+ sudo apt install cmake ninja-build
  - name: Build
  run: |
- autoreconf -vfi
- mkdir build && cd build
- ../configure
- make
+ cmake . -Bbuild -GNinja
+ ninja -C build/
+ - name: Test
+ run: |
+ ninja -C build/ test
  - name: Attach termux-elf-cleaner to release
  uses: termux/[email protected]
  with:

.github/workflows/build.yml

@@ -12,22 +12,15 @@ jobs:
  with:
  ref: ${{ env.GITHUB_REF }}
 
- - name: Prepare
+ - name: Install required packages
  run: |
- autoreconf -vfi
- mkdir build
-
- - name: Configure
- run: |
- cd build
- ../configure
-
- - name: Make
+ sudo apt update
+ sudo apt upgrade
+ sudo apt install cmake ninja-build
+ - name: Build
  run: |
- cd build
- make
-
+ cmake . -Bbuild -GNinja
+ ninja -C build/
  - name: Test
  run: |
- cd build
- make check
+ ninja -C build/ test

.gitignore

@@ -3,8 +3,16 @@ elf-cleaner
 # In case of out-of-src build in a directory build/:
 build/
 
+# Some people prefer to use this as build directory
+out/
+
+# Used for editor integration (completions, etc)
+compile_commands.json
+
 *~
 
+# Generated files from old autotools
+# Although we no longer use autotools, some contributors might still be having it in their trees
 Makefile.in
 aclocal.m4
 autom4te.cache/

CMakeLists.txt

@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 3.25 FATAL_ERROR)
+
+set(VERSION_MAJOR 3)
+set(VERSION_MINOR 0)
+set(VERSION_PATCH 0)
+
+set(VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
+
+set(ARCHES aarch64;arm;i686;x86_64)
+set(APIS 21;24)
+
+project(elf-cleaner
+ LANGUAGES C CXX
+ VERSION ${VERSION}
+)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+set(PACKAGE_NAME "termux-elf-cleaner" CACHE STRING "Name of the package")
+
+add_executable("${PACKAGE_NAME}"
+ elf-cleaner.cpp
+ arghandling.c
+)
+
+target_compile_definitions("${PACKAGE_NAME}"
+ PRIVATE "COPYRIGHT=\"Copyright (C) 2022-2024 Termux and contributors.\""
+ PRIVATE "PACKAGE_VERSION=\"${VERSION}\""
+ PRIVATE "PACKAGE_NAME=\"${PACKAGE_NAME}\""
+)
+
+enable_testing()
+add_test(
+ NAME "tests"
+ COMMAND bash -c "${CMAKE_CURRENT_SOURCE_DIR}/tests/test.sh ${CMAKE_CURRENT_BINARY_DIR}/${PACKAGE_NAME} ${CMAKE_CURRENT_SOURCE_DIR}"
+ )

tests/.gitignore

@@ -0,0 +1 @@
+*.test