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// TODO: This could be rewritten as one (or more) pure Node.js script(s)

// without Grunt, and called from package.json.

module.exports = function (grunt) {

const fs = require('fs');

const path = require('path');

const isWin = /^win/.test(process.platform);

const isDev = grunt.option('dev') || false;

const useMinGW = grunt.option('use-MinGW') || false;

const buildOutputPath = '../Binaries/embuild/GDevelop.js/';

const buildPath = '../Binaries/embuild';

let cmakeBinary = 'emcmake cmake';

let cmakeGeneratorArgs = [];

let makeBinary = 'emmake make';

let makeArgs = ['-j 4'];

// Use more specific paths on Windows

if (isWin) {

let makeProgram = '';

if (useMinGW) {

// Use make from MinGW

if (!fs.existsSync('C:\\MinGW\\bin\\mingw32-make.exe')) {

console.error(

"🔴 Can't find mingw32-make in C:\\MinGW. Make sure MinGW is installed."

);

return;

}

const mingwBinary = 'C:\\MinGW\\bin\\mingw32-make';

cmakeGeneratorArgs = ['-G "MinGW Makefiles"'];

makeProgram = mingwBinary;

} else {

// Use Ninja (by default)

const ninjaBinary = path.join(__dirname, 'ninja', 'ninja.exe');

cmakeGeneratorArgs = [

'-G "Ninja"',

`-DCMAKE_MAKE_PROGRAM="${ninjaBinary}"`,

];

makeProgram = ninjaBinary;

}

makeBinary = `emmake "${makeProgram}"`;

makeArgs = [];

// Find CMake in usual folders or fallback to PATH.

if (fs.existsSync('C:\\Program Files\\CMake\\bin\\cmake.exe')) {

cmakeBinary = 'emcmake "C:\\Program Files\\CMake\\bin\\cmake"';

} else if (

fs.existsSync('C:\\Program Files (x86)\\CMake\\bin\\cmake.exe')

) {

cmakeBinary = 'emcmake "C:\\Program Files (x86)\\CMake\\bin\\cmake"';

} else {

console.log(

"⚠️ Can't find CMake in its usual Program Files folder. Make sure you have cmake in your PATH instead."

);

}

}

grunt.initConfig({

mkdir: {

embuild: {

options: {

create: [buildPath],

},

},

},

shell: {

// Launch CMake if needed

cmake: {

src: [buildPath + '/CMakeCache.txt', 'CMakeLists.txt'],

command:

cmakeBinary +

' ' +

[

...cmakeGeneratorArgs,

'../..',

// Disable link time optimizations for slightly faster build time.

isDev

? '-DDISABLE_EMSCRIPTEN_LINK_OPTIMIZATIONS=TRUE'

: '-DDISABLE_EMSCRIPTEN_LINK_OPTIMIZATIONS=FALSE',

].join(' '),

options: {

execOptions: {

cwd: buildPath,

env: process.env,

maxBuffer: Infinity,

},

},

},

// Generate glue.cpp and glue.js file using Bindings.idl, and patch them

updateGDBindings: {

src: 'Bindings/Bindings.idl',

command: 'node update-bindings.js',

},

// Compile GDevelop with emscripten

make: {

command: makeBinary + ' ' + makeArgs.join(' '),

options: {

execOptions: {

cwd: buildPath,

env: process.env,

},

},

},

// Copy the library to newIDE

copyToNewIDE: {

command: 'node scripts/copy-to-newIDE.js',

options: {

execOptions: {

cwd: __dirname,

},

},

},

// Copy the library to newIDE

generateTypes: {

command: 'node scripts/generate-types.js',

options: {

execOptions: {

cwd: __dirname,

},

},

},

},

clean: {

options: { force: true },

build: {

src: [

buildPath,

buildOutputPath + 'libGD.js',

buildOutputPath + 'libGD.wasm',

],

},

},

});

grunt.loadNpmTasks('grunt-contrib-clean');

grunt.loadNpmTasks('grunt-contrib-copy');

grunt.loadNpmTasks('grunt-string-replace');

grunt.loadNpmTasks('grunt-shell');

grunt.loadNpmTasks('grunt-newer');

grunt.loadNpmTasks('grunt-mkdir');

grunt.registerTask('build:raw', [

'mkdir:embuild',

'shell:cmake',

'newer:shell:updateGDBindings',

'shell:make',

]);

grunt.registerTask('build', [

'build:raw',

'shell:copyToNewIDE',

'shell:generateTypes',

]);

};