A lua interface / front-end to [the reggae meta-build system](https://github.org/atilaneves/
luarocks install --local reggae
Set the LUA_PATH environment variable to point to the installation path
(e.g. ~/.luarocks/share/lua/5.3/?.lua).
Add to your PATH variable so that the reggae binary can find
reggae_json_build.lua (e.g. export PATH=$PATH:~/.luarocks/share/lua/5.3).
This package makes available a few classes and functions that allow the user to write build descriptions in Javacript using node-js. It is essentially the same API as the D version but in Lua syntax. A simple C build could be written like this:
local reggae = require('reggae')
local main_obj = reggae.Target('main.o', 'gcc -I$project/src -c $in -o $out', reggae.Target('src/main.c'))
local maths_obj = reggae.Target('maths.o', 'gcc -c $in -o $out', reggae.Target('src/maths.c'))
local app = reggae.Target('myapp', 'gcc -o $out $in', {main_obj, maths_obj})
return {bld = reggae.Build(app)}
This should be contained in a file named reggaefile.lua in the project's root directory.
Running the reggae D binary on that directory will produce a build with the requested backend
(ninja, make, etc.)
Most builds will probably not resort to low-level primitives as above. A better way to describe that C build would be:
local reggae = require('reggae')
local objs = reggae.object_files({flags = '-I$project/src', src_dirs = {'src'}})
local app = link({exe_name = 'app', dependencies = objs})
exports.bld = reggae.Build(app)
Please consult the reggae documentation for more details.