advanced_options.md

Advanced Options

Advanced options to control the compiler can be configured in the webpack configuration, loader section.

The following options are available:

    loader: 'opal-webpack-loader',
    options: {
        sourceMap: true,
        hmr: true,
        hmrHook: 'global.Opal.MyModule.$trigger_render()',
        includePaths:  ['../other/project/my_lib_directory'],
        requireModules: ['a_compiler_extension'],
        dynamicRequireSeverity: 'error',
        compilerFlagsOn: ['arity_check', 'freezing'],
        compilerFlagsOff: ['tainting'],
        memcached: true, // or:
        redis: true
    }

• sourceMap: see Source Maps
• hmr: see Hot Module Reloading
• hmrHook: see Hot Module Reloading
• includePaths: A array of paths for ruby to load compiler or compile server extensions from.
• requireModules: A array of ruby modules of compiler or compile server extensions to load.
• dynamicRequireSeverity: A opal compiler option, one of: 'error', 'warning', 'ignore'.
• compilerFlagsOn: A array of opal compiler flags to turn on, to set to true.
• compilerFlagsOff: A array of opal compiler flags to turn off, to set to false.
• memcached: Can be either true or a memcached connect string like localhost:12345. Enables memcached as compiler cache.
• redis: Can be either true or a redis connect string like redis://localhost:12345. Enables redis as compiler cache.

Only one of the options of memcached or redis can be given.