build_script

#!/usr/bin/env node

const exec = require("child_process");

const OS_WINDOWS = "win32";
const OS_LINUX = "linux";
const OS_MAC = "darwin";
const OS_FREEBSD = "freebsd";
const OS_SUNOS = "sunos";

const doSystemCall = (syscall) => {
    const returnVar = {
        status: 0,
        stdout: "",
        stderr: ""
    };

    try {
        returnVar.stdout = exec.execSync(syscall).toString();
        return returnVar;
    } catch (exception) {
        returnVar.stderr = exception.stderr;
        returnVar.status = exception.status;
        return returnVar;
    }
};

const doWindowsBuild = () => {
    doSystemCall("rmdir /s /q dist");
    console.log("Transpiling code ...");
    let status = doSystemCall("babel src -d dist").status;
    if (status === 0) {
        console.log("Transpiling code succeeded!");
        console.log("Copying flow types ...");
        let status = doSystemCall("node_modules\\.bin\\flow-copy-source -v src dist").status;
        if (status === 0) {
            console.log("Copying flow types suceeded!");
            console.log("Project succesfully built!");
        } else {
            console.error("ERROR: Flow types not copied!");
        }
    } else {
        console.error("ERROR: Flow code not transpiled!");
    }
};

const doLinuxBuild = () => {
    doSystemCall("rm -r dist");
    let status = doSystemCall("babel src -d dist").status;
    if (status === 0) {
        let status = doSystemCall("node_modules/.bin/flow-copy-source -v src dist").status;
        if (status === 0) {
            console.log("Project succesfully built!");
        } else {
            console.error("Flow types not copied!");
        }
    } else {
        console.error("Flow code not transpiled!");
    }
};

switch (process.platform) {
    case OS_WINDOWS:
        doWindowsBuild();
        break;
    case OS_LINUX:
        doLinuxBuild();
        break;
    default:
        console.error("OS not supported for building project! Edit file 'build_script' to add support for your OS.");
}