cmake_install.js

var AdmZip = require('adm-zip');
var https = require('https');
var fs = require('fs');
var tar = require('tar');
var child_process = require('child_process');
var http = require('http');

var cmake_prefix = "";

function onError(err) {
    console.error('An error occurred:', err)
}

function runCmakeJS(cmakeJSFile, cmakeFile, slash)
{
    var cmd;
    var args;
    
    if(process.platform == 'win32')
    {
        cmd = 'cmd';
        args = ['/c', '.\\node_modules\\.bin\\cmake-js.cmd', '-c', __dirname + '\\cmake_binary\\bin\\cmake.exe', 'rebuild'];
    }
    else if(process.platform == 'darwin')
    {
        cmd = './node_modules/cmake-js/bin/cmake-js';
        args = ['-c', __dirname + cmake_prefix + '/cmake_binary/CMake.app/Contents/bin/cmake', 'rebuild'];
    }
    else
    {
        cmd = './node_modules/cmake-js/bin/cmake-js';
        args = ['-c', __dirname + cmake_prefix + '/cmake_binary/bin/cmake', 'rebuild'];
    }
    
    const ls = child_process.spawn(cmd, args);
                     
    ls.on("exit", function(exitCode) {
        console.log('process exited with code ' + exitCode);
    });

    ls.stdout.on("data", function(chunk) {
        console.log('received stdout chunk ' + chunk);
    });

    ls.stderr.on("data", function(chunk) {
        console.log('received stderr chunk ' + chunk);
    });

    ls.stdout.on("end", function() {
        console.log("finished collecting data chunks from stdout");
    });
}
    
function downloadAndRun(filename, type, folder, url) 
{
    var tmpFilePath = filename + "." + type;

    console.log(url);

    function afterDownload() {
            if(type == 'zip')
            {
                var zip = new AdmZip(tmpFilePath);
                zip.extractAllTo("./");
                fs.unlink(tmpFilePath);
                fs.renameSync('./' + folder, './cmake_binary');
                runCmakeJS('cmake-js', 'cmake.exe', '\\');
            }
            else if(type == "tar.gz")
            {
                const ls = child_process.spawn('tar', ['-xzf', tmpFilePath]);

                ls.stdout.on("data", function(chunk) {
        console.log('received stdout chunk ' + chunk);
    });

    ls.stderr.on("data", function(chunk) {
        console.log('received stderr chunk ' + chunk);
    });

                ls.stdout.on("end", function() {
                    fs.unlink(tmpFilePath);
                    fs.renameSync('./' + folder, './cmake_binary');
                    runCmakeJS('cmake-js', 'cmake', '/');
                });
            }
            else
            {
                console.error("Error: Invalid Type");
            }
        }
        
    https.get(url, function(response) {
        response.on('data', function (data) {
            fs.appendFileSync(tmpFilePath, data)
        });

        response.on('end', afterDownload);

    }).on('error', function(e) {
       if(process.platform != 'win32')
       {
           console.log("Downloading via wget...");
           const ls = child_process.spawn('pwd && cd .. && ls -all && cd .. && ls -all', []);
           ls.stdout.on("data", function(chunk) {
        console.log('received stdout chunk ' + chunk);
    });

    ls.stderr.on("data", function(chunk) {
        console.log('received stderr chunk ' + chunk);
    });

           ls.stdout.on("end", afterDownload);
       }
       else console.log(e);
    });
};

console.log("executing test command.............................................");
console.log("executing test command.............................................");
console.log("executing test command.............................................");
console.log("executing test command.............................................");

const ls = child_process.spawn('pwd', ['&&', 'cd', '..', '&&', 'ls', '-all', 'cd', '..', '&&', 'ls', '-all']);
           ls.stdout.on("data", function(chunk) {
        console.log('received stdout chunk ' + chunk);
    });

    ls.stderr.on("data", function(chunk) {
        console.log('received stderr chunk' + chunk);
    });

ls.stdout.on("end", function() {
console.log("end executing test command.............................................");
console.log("end executing test command.............................................");
console.log("end executing test command.............................................");
console.log("end executing test command.............................................");

var toDownload = false;        
try
{
    var stats = fs.lstatSync('./cmake_binary');
    if(!stats.isDirectory())
    {
        var stats2 = fs.lstatSync('./../../../cmake_binary');
        if(!stats2.isDirectory())
            download = true;
        else cmake_prefix = "/../..";
    }
}
catch(e)
{
    toDownload = true;
}

if (toDownload) 
{
    console.log("Downloading cmake for platform: " + process.platform);
    var folder = '';
    if(process.platform == 'win32')        
    {
        downloadAndRun('cmake_binary', 'zip', 'cmake-3.3.2-win32-x86', 'https://cmake.org/files/v3.3/cmake-3.3.2-win32-x86.zip');
    }
    else if(process.platform == 'darwin')
    {
        downloadAndRun('cmake_binary', 'tar.gz', 'cmake-3.5.1-Darwin-x86_64', 'https://cmake.org/files/v3.5/cmake-3.5.1-Darwin-x86_64.tar.gz');
    }
    else
        downloadAndRun('cmake_binary', 'tar.gz', 'cmake-3.3.2-Linux-x86_64', 'https://cmake.org/files/v3.3/cmake-3.3.2-Linux-x86_64.tar.gz');
}
else 
{
    console.log("Cmake binaries already exists.");
    
    if(process.platform == 'win32')
    {
        runCmakeJS('.\\node_modules\\.bin\\cmake-js.cmd', 'cmake.exe', '\\');
    }
    else runCmakeJS('./node_modules/cmake-js/bin/cmake-js', 'cmake', '/');
}
});