CMAKE_EXPORT_COMPILE_COMMANDS

Enable/Disable output of compile commands during generation.

If enabled, generates a compile_commands.json file containing the exact compiler calls for all translation units of the project in machine-readable form. The format of the JSON file looks like:

[
  {
    "directory": "/home/user/development/project",
    "command": "/usr/bin/c++ ... -c ../foo/foo.cc",
    "file": "../foo/foo.cc"
  },

  ...

  {
    "directory": "/home/user/development/project",
    "command": "/usr/bin/c++ ... -c ../foo/bar.cc",
    "file": "../foo/bar.cc"
  }
]

This is initialized by the CMAKE_EXPORT_COMPILE_COMMANDS environment variable, and initializes the EXPORT_COMPILE_COMMANDS target property for all targets.