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HACKING.md

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Hacking

Here is some wisdom to help you build and test this project as a developer and potential contributor.

If you plan to contribute, please read the CONTRIBUTING guide.

Developer mode

Build system targets that are only useful for developers of this project are hidden if the GTA_SA_cheat_finder_DEVELOPER_MODE option is disabled. Enabling this option makes tests and other developer targets and options available. Not enabling this option means that you are a consumer of this project and thus you have no need for these targets and options.

Developer mode is always set to on in CI workflows.

Presets

This project makes use of presets to simplify the process of configuring the project. As a developer, you are recommended to always have the latest CMake version installed to make use of the latest Quality-of-Life additions.

You have a few options to pass GTA_SA_cheat_finder_DEVELOPER_MODE to the configure command, but this project prefers to use presets.

As a developer, you should create a CMakeUserPresets.json file at the root of the project:

{
  "version": 2,
  "cmakeMinimumRequired": {
    "major": 3,
    "minor": 14,
    "patch": 0
  },
  "configurePresets": [
    {
      "name": "dev",
      "binaryDir": "${sourceDir}/build/dev",
      "inherits": ["dev-mode", "ci-<os>"],
      "cacheVariables": {
        "CMAKE_BUILD_TYPE": "Debug"
      }
    }
  ],
  "buildPresets": [
    {
      "name": "dev",
      "configurePreset": "dev",
      "configuration": "Debug"
    }
  ],
  "testPresets": [
    {
      "name": "dev",
      "configurePreset": "dev",
      "configuration": "Debug",
      "output": {
        "outputOnFailure": true
      }
    }
  ]
}

Example presets for CMakeUserPresets.json with Linux:

{
  "version": 2,
  "cmakeMinimumRequired": {
    "major": 3,
    "minor": 14,
    "patch": 0
  },
  "configurePresets": [
    {
      "name": "dev-common",
      "hidden": true,
      "inherits": ["dev-mode", "clang-tidy", "cppcheck"],
      "cacheVariables": {
        "BUILD_MCSS_DOCS": "ON"
      }
    },
    {
      "name": "dev-unix",
      "binaryDir": "${sourceDir}/build/dev-unix",
      "inherits": ["dev-common", "ci-unix"],
      "cacheVariables": {
        "CMAKE_BUILD_TYPE": "Debug",
        "CMAKE_EXPORT_COMPILE_COMMANDS": "ON"
      }
    },
    {
      "name": "dev-win64",
      "binaryDir": "${sourceDir}/build/dev-win64",
      "inherits": ["dev-common", "ci-win64"]
    },
    {
      "name": "dev",
      "binaryDir": "${sourceDir}/build/dev",
      "inherits": "dev-unix"
    },
    {
      "name": "dev-coverage",
      "binaryDir": "${sourceDir}/build/coverage",
      "inherits": ["dev-mode", "coverage-unix"]
    }
  ],
  "buildPresets": [
    {
      "name": "dev",
      "configurePreset": "dev",
      "configuration": "Debug",
      "jobs": 16
    }
  ],
  "testPresets": [
    {
      "name": "dev",
      "configurePreset": "dev",
      "configuration": "Debug",
      "output": {
        "outputOnFailure": true
      },
      "execution": {
        "jobs": 16
      }
    }
  ]
}

You should replace <os> in your newly created presets file with the name of the operating system you have, which may be win64, linux or darwin. You can see what these correspond to in the CMakePresets.json file.

CMakeUserPresets.json is also the perfect place in which you can put all sorts of things that you would otherwise want to pass to the configure command in the terminal.

Configure, build and test

If you followed the above instructions, then you can configure, build and test the project respectively with the following commands from the project root on any operating system with any build system:

cmake --preset=dev
cmake --build --preset=dev
ctest --preset=dev

If you are using a compatible editor (e.g. VSCode) or IDE (e.g. CLion, VS), you will also be able to select the above created user presets for automatic integration.

Please note that both the build and test commands accept a -j flag to specify the number of jobs to use, which should ideally be specified to the number of threads your CPU has. You may also want to add that to your preset using the jobs property, see the presets documentation for more details.

Developer mode targets

These are targets you may invoke using the build command from above, with an additional -t <target> flag:

coverage

Available if ENABLE_COVERAGE is enabled. This target processes the output of the previously run tests when built with coverage configuration. The commands this target runs can be found in the COVERAGE_TRACE_COMMAND and COVERAGE_HTML_COMMAND cache variables. The trace command produces an info file by default, which can be submitted to services with CI integration. The HTML command uses the trace command's output to generate an HTML document to <binary-dir>/coverage_html by default.

docs

Available if BUILD_MCSS_DOCS is enabled. Builds to documentation using Doxygen and m.css. The output will go to <binary-dir>/docs by default (customizable using DOXYGEN_OUTPUT_DIRECTORY).

format-check and format-fix

These targets run the clang-format tool on the codebase to check errors and to fix them respectively. Customization available using the FORMAT_PATTERNS and FORMAT_COMMAND cache variables.

run-exe

Runs the executable target GTA_SA_cheat_finder_exe.

spell-check and spell-fix

These targets run the codespell tool on the codebase to check errors and to fix them respectively. Customization available using the SPELL_COMMAND cache variable.