Basics of generating a compile_commands.json file with Bazel

py_binary( name = 'generate_compile_command', srcs = [ 'generate_compile_command.py', ], deps = [ '//third_party/bazel:extra_actions_proto_py', ], )

action_listener( name = 'generate_compile_commands_listener', visibility = ['//visibility:public'], mnemonics = [ 'CppCompile', ], extra_actions = [':generate_compile_commands_action'], )

extra_action( name = 'generate_compile_commands_action', tools = [ ':generate_compile_command', ], out_templates = [ '$(ACTION_ID)_compile_command', ], cmd = '$(location :generate_compile_command) $(EXTRA_ACTION_FILE)' + '$(output $(ACTION_ID)_compile_command)', )