function packagePlugin()

in build-scripts/packageExtension.ts [85:184]
32 lines of code
3 McCabe index (conditional complexity)

function packagePlugin(options: CommandLineOptions) {
    fs.mkdirpSync(folders.packageRoot)
    fs.mkdirpSync(folders.packageTasks)
    const npmFolder = path.join(folders.buildRoot, 'npmcache')

    fs.copySync(path.join(folders.repoRoot, 'LICENSE'), path.join(folders.packageRoot, 'LICENSE'), { overwrite: true })
    fs.copySync(path.join(folders.repoRoot, 'README.md'), path.join(folders.packageRoot, 'README.md'), {
        overwrite: true
    })
    fs.copySync(path.join(folders.repoRoot, 'build', manifestFile), path.join(folders.packageRoot, manifestFile), {
        overwrite: true
    })

    generateGitHashFile()

    // stage manifest images
    fs.copySync(path.join(folders.repoRoot, 'images'), path.join(folders.packageRoot, 'images'), { overwrite: true })

    // get required npm packages that will be copied
    installNodePackages(npmFolder)

    shelljsPatch.patch()

    // clean, dedupe and pack each task as needed
    findMatchingFiles(folders.sourceTasks).forEach(function(taskName) {
        console.log('Processing task ' + taskName)

        if (ignoredFolders.some(folderName => folderName === taskName)) {
            console.log('Skpping task ' + taskName)

            return
        }

        const taskBuildFolder = path.join(folders.buildTasks, taskName)
        const taskPackageFolder = path.join(folders.packageTasks, taskName)
        fs.mkdirpSync(taskPackageFolder)

        // eslint-disable-next-line @typescript-eslint/no-var-requires
        const taskDef = require(path.join(taskBuildFolder, 'task.json'))
        if (
            !Object.hasOwnProperty.call(taskDef.execution, 'Node') &&
            !Object.hasOwnProperty.call(taskDef.execution, 'Node10') &&
            !Object.hasOwnProperty.call(taskDef.execution, 'Node14')
        ) {
            console.log('Copying non-node task ' + taskName)
            fs.copySync(taskBuildFolder, taskPackageFolder)

            return
        }

        for (const resourceFile of vstsFiles) {
            fs.copySync(path.join(taskBuildFolder, resourceFile), path.join(taskPackageFolder, resourceFile), {
                overwrite: true
            })
        }
        // we also need lib.json from azure pipelines task lib or else localization will not work properly
        fs.copySync(
            path.join(folders.repoRoot, 'node_modules/azure-pipelines-task-lib/lib.json'),
            path.join(taskPackageFolder, 'lib.json'),
            { overwrite: true }
        )

        const inputFilename = path.join(taskBuildFolder, taskName + '.runner.js')

        console.log('packing node-based task')
        const result = esbuild.buildSync({
            entryPoints: [inputFilename],
            bundle: true,
            platform: 'node',
            target: ['node10'],
            minify: true,
            outfile: `${taskPackageFolder}/${taskName}.js`
        })
        result.warnings.forEach(warning => console.log(warning))
    })

    shelljsPatch.unpatch()

    console.log('Creating deployment vsix')

    const binName = os.platform() === 'win32' ? `tfx.cmd` : 'tfx'
    const tfx = path.join(process.cwd(), 'node_modules', '.bin', binName)
    const args: string[] = ['extension', 'create', '--root', folders.packageRoot]

    args.push('--output-path', folders.packageRoot)
    args.push('--manifests', path.join(folders.packageRoot, manifestFile))

    if (options.publisher) {
        args.push('--publisher', options.publisher)
    }

    console.log('Packaging with:' + `${tfx} ${args.join(' ')}`)

    ncp.execFileSync(tfx, args, {
        stdio: 'inherit',
        shell: os.platform() === 'win32' // for tfx.cmd on Windows.
    })

    console.log('Packaging successful')
}