build.js

const spawn = require('child_process').spawn;
const fs = require('fs-extra');
const path = require('path');
const tar = require('tar');
const argv = require('minimist')(process.argv.slice(2), {
  // Specify that these arguments should be a string
  string: ['version', 'runtime', 'abi'],
});
const pkg = require('./package.json');
const nodeAbi = require('node-abi');
const { optionsFromPackage } = require('./helpers');

let arch = process.env.ARCH
  ? process.env.ARCH.replace('i686', 'ia32').replace('x86_64', 'x64')
  : process.arch;

let gypJsPath = path.join(
  __dirname,
  'node_modules',
  '.bin',
  process.platform === 'win32' ? 'node-gyp.cmd' : 'node-gyp'
);

let files = [];
let targets;
let chain = Promise.resolve();

initBuild();

function initBuild() {
  // Check if a specific runtime has been specified from the command line
  if ('runtime' in argv && 'version' in argv && 'abi' in argv) {
    targets = [[argv['runtime'], argv['version'], argv['abi']]];
  } else if ('all' in argv) {
    // If "--all", use those defined in package.json
    // https://www.electronjs.org/docs/latest/tutorial/electron-timelines
    targets = require('./package.json').supportedTargets;
  } else {
    const options = optionsFromPackage();
    if (process.env.npm_config_targets) {
      options.targets = options.targets.concat(
        process.env.npm_config_targets.split(',')
      );
    }
    options.targets = options.targets.map((targetStr) => targetStr.split('-'));
    if (process.env.npm_config_targets === 'all') {
      options.targets = supportedTargets.map((arr) => [arr[0], arr[2]]);
      options.platforms = ['win32', 'darwin', 'linux'];
      options.arches = ['x64', 'ia32'];
    }
    if (process.env.npm_config_platforms) {
      options.platforms = options.platforms.concat(
        process.env.npm_config_platforms.split(',')
      );
    }
    if (process.env.npm_config_arches) {
      options.arches = options.arches.concat(
        process.env.npm_config_arches.split(',')
      );
    }

    if (options.targets.length > 0) {
      targets = options.targets.map((e) => [
        e[0],
        nodeAbi.getTarget(e[1], e[0]),
        e[1],
      ]);
    } else {
      const runtime = process.versions['electron'] ? 'electron' : 'node';
      const version = process.versions.node;
      const abi = process.versions.modules;
      targets = [[runtime, version, abi]];
    }
  }

  targets.forEach((parts) => {
    let runtime = parts[0];
    let version = parts[1];
    let abi = parts[2];
    chain = chain
      .then(function () {
        return build(runtime, version, abi);
      })
      .then(function () {
        return tarGz(runtime, abi);
      })
      .catch((err) => {
        console.error(err);
        process.exit(1);
      });
  });

  chain = chain.then(function () {
    if ('upload' in argv && argv['upload'] === 'false') {
      // If no upload has been specified, don't attempt to upload
      return;
    }

    return uploadFiles(files);
  });

  cpGyp();
}

function cpGyp() {
  try {
    fs.unlinkSync(path.join(__dirname, 'binding.gyp'));
    fs.unlinkSync(path.join(__dirname, 'uiohook.gyp'));
  } catch (e) {}
  switch (process.platform) {
    case 'win32':
    case 'darwin':
      fs.copySync(
        path.join(__dirname, 'build_def', process.platform, 'binding.gyp'),
        path.join(__dirname, 'binding.gyp')
      );
      fs.copySync(
        path.join(__dirname, 'build_def', process.platform, 'uiohook.gyp'),
        path.join(__dirname, 'uiohook.gyp')
      );
      break;
    default:
      fs.copySync(
        path.join(__dirname, 'build_def', 'linux', 'binding.gyp'),
        path.join(__dirname, 'binding.gyp')
      );
      fs.copySync(
        path.join(__dirname, 'build_def', 'linux', 'uiohook.gyp'),
        path.join(__dirname, 'uiohook.gyp')
      );
      break;
  }
}

function build(runtime, version, abi) {
  return new Promise(function (resolve, reject) {
    let args = [
      'configure',
      'rebuild',
      '--target=' + version,
      '--arch=' + arch,
    ];

    const isElectron = /^electron/i.test(runtime);
    if (isElectron) {
      args.push('--dist-url=https://electronjs.org/headers');
    }

    if (parseInt(abi) >= 80) {
      // Fix build for electron macOS arm64
      if (arch === 'x64' || (arch === 'arm64' && isElectron)) {
        args.push('--v8_enable_pointer_compression=1');
      } else {
        args.push('--v8_enable_pointer_compression=0');
        args.push('--v8_enable_31bit_smis_on_64bit_arch=1');
      }
    }
    if (process.platform !== 'win32') {
      if (parseInt(abi) >= 64) {
        args.push('--build_v8_with_gn=false');
      }
      if (parseInt(abi) >= 67) {
        args.push('--enable_lto=false');
      }
    }

    console.log('Building iohook for ' + runtime + ' v' + version + '>>>>');
    if (process.platform === 'win32') {
      if (version.split('.')[0] >= 4) {
        // https://blog.knatten.org/2022/08/26/microsoft-c-versions-explained/
        process.env.msvs_toolset = 15;
        process.env.msvs_version = argv.msvs_version || 2017;
      } else {
        process.env.msvs_toolset = 12;
        process.env.msvs_version = 2013;
      }
      args.push('--msvs_version=' + process.env.msvs_version);
    } else {
      process.env.gyp_iohook_runtime = runtime;
      process.env.gyp_iohook_abi = abi;
      process.env.gyp_iohook_platform = process.platform;
      process.env.gyp_iohook_arch = arch;
    }

    let proc = spawn(gypJsPath, args, {
      env: process.env,
    });
    proc.stdout.pipe(process.stdout);
    proc.stderr.pipe(process.stderr);
    proc.on('exit', function (code, sig) {
      if (code === 1) {
        return reject(new Error('Failed to build...'));
      }
      resolve();
    });
  });
}

function tarGz(runtime, abi) {
  const FILES_TO_ARCHIVE = {
    win32: ['build/Release/iohook.node', 'build/Release/uiohook.dll'],
    linux: ['build/Release/iohook.node', 'build/Release/uiohook.so'],
    darwin: ['build/Release/iohook.node', 'build/Release/uiohook.dylib'],
  };
  const tarPath =
    'prebuilds/iohook-v' +
    pkg.version +
    '-' +
    runtime +
    '-v' +
    abi +
    '-' +
    process.platform +
    '-' +
    arch +
    '.tar.gz';

  files.push(tarPath);

  if (!fs.existsSync(path.dirname(tarPath))) {
    fs.mkdirSync(path.dirname(tarPath));
  }

  tar.c(
    {
      gzip: true,
      file: tarPath,
      sync: true,
    },
    FILES_TO_ARCHIVE[process.platform]
  );
}

function uploadFiles(files) {
  const upload = require('prebuild/upload');
  return new Promise(function (resolve, reject) {
    console.log(
      'Uploading ' + files.length + ' prebuilds(s) to Github releases'
    );
    let opts = {
      pkg: pkg,
      files: files,
      'tag-prefix': 'v',
      upload: process.env.GITHUB_ACCESS_TOKEN,
    };
    upload(opts, function (err, result) {
      if (err) {
        return reject(err);
      }
      console.log('Found ' + result.old.length + ' prebuild(s) on Github');
      if (result.old.length) {
        result.old.forEach(function (build) {
          console.log('-> ' + build);
        });
      }
      console.log(
        'Uploaded ' + result.new.length + ' new prebuild(s) to Github'
      );
      if (result.new.length) {
        result.new.forEach(function (build) {
          console.log('-> ' + build);
        });
      }
      resolve();
    });
  });
}