buildocaml.js

//@ts-check
var cp = require('child_process')
var path = require('path')
var fs = require('fs')





/**
 * @type {string}
 */
var cached = undefined
// FIXME: this works in CI, but for release build, submodule
// is carried, so it needs to be fixed
/**
 * @returns{string}
 */
function getVersionPrefix(){
    if(cached !== undefined){
        return cached
    }
    var file = path.join(__dirname, '..', 'ocaml', 'VERSION')
    if(fs.existsSync(file)){
        var version = fs.readFileSync(file, 'ascii')
        cached = version.substr(0, version.indexOf('+'))
        return cached
    }

    file = path.join(__dirname,'..','OCAML_VERSION')
    if(fs.existsSync(file)){
        var version = fs.readFileSync(file, 'ascii')
        cached =  version.substr(0, version.indexOf('+'))
        return cached
    }
    throw new Error("version file not found")
    
}
exports.getVersionPrefix = getVersionPrefix


function build() {
    var ocamlSrcDir = path.join(__dirname, '..', 'ocaml')
    if(!fs.existsSync(ocamlSrcDir)){
        fs.mkdirSync(ocamlSrcDir)
    }
    if (!fs.existsSync(path.join(ocamlSrcDir, 'VERSION'))) {
        cp.execSync(`tar xzvf ocaml.tar.gz`, { cwd: ocamlSrcDir, stdio: [0, 1, 2] })
    }

    var prefix = path.normalize(path.join(__dirname, '..', 'native', getVersionPrefix()))
    cp.execSync('./configure -prefix ' + prefix + ' -no-ocamlbuild  -no-curses -no-graph -no-pthread -no-debugger  && make clean && make -j9 world.opt && make install '
        , { cwd: path.join(__dirname, '..', 'ocaml'), stdio: [0, 1, 2] })
}

exports.build = build
if(require.main === module){
    build()
}