Generate compile_commands.json for premake projects

This module implements JSON Compilation Database Format Specification for premake projects.

Install this module somewhere premake can find it, for example:

git clone https://github.com/tarruda/premake-export-compile-commands export-compile-commands

Then put this at the top of your system script(eg: ~/.premake/premake-system.lua):

require "export-compile-commands"

Note that while possible, it is not recommended to put the require line in project-specific premake configuration because the "export-compile-commands" module will need to be installed everywhere your project is built.

After the above steps, the "export-compile-commands" action will be available for your projects:

premake5 export-compile-commands --config=Debug --platform=x86

By default, the above command creates a compile_commands.json file near your other generated project files, but you can override with the --output-file option:

premake5 export-compile-commands --output-file=release_compile_commands.json --config=Release