function prepareIcons()

in lib/prepare.js [938:1022]
59 lines of code
18 McCabe index (conditional complexity)

function prepareIcons (icons) {
    // http://developer.android.com/design/style/iconography.html
    const SIZE_TO_DENSITY_MAP = {
        36: 'ldpi',
        48: 'mdpi',
        72: 'hdpi',
        96: 'xhdpi',
        144: 'xxhdpi',
        192: 'xxxhdpi'
    };

    const android_icons = {};
    let default_icon;

    // find the best matching icon for a given density or size
    // @output android_icons
    const parseIcon = function (icon, icon_size) {
        // do I have a platform icon for that density already
        const density = icon.density || SIZE_TO_DENSITY_MAP[icon_size];
        if (!density) {
            // invalid icon defition ( or unsupported size)
            return;
        }
        const previous = android_icons[density];
        if (previous && previous.platform) {
            return;
        }
        android_icons[density] = icon;
    };

    // iterate over all icon elements to find the default icon and call parseIcon
    for (let i = 0; i < icons.length; i++) {
        const icon = icons[i];
        let size = icon.width;

        if (!size) {
            size = icon.height;
        }

        if (!size && !icon.density) {
            if (default_icon) {
                const found = {};
                const favor = {};

                // populating found icon.
                if (icon.background && icon.foreground && icon.monochrome) {
                    found.background = icon.background;
                    found.foreground = icon.foreground;
                    found.monochrome = icon.monochrome;
                }
                if (icon.background && icon.foreground) {
                    found.background = icon.background;
                    found.foreground = icon.foreground;
                }
                if (icon.src) {
                    found.src = icon.src;
                }

                if (default_icon.background && default_icon.foreground && default_icon.monochrome) {
                    favor.background = default_icon.background;
                    favor.foreground = default_icon.foreground;
                    favor.monochrome = default_icon.monochrome;
                }
                if (default_icon.background && default_icon.foreground) {
                    favor.background = default_icon.background;
                    favor.foreground = default_icon.foreground;
                }
                if (default_icon.src) {
                    favor.src = default_icon.src;
                }

                events.emit('verbose', 'Found extra default icon: ' + JSON.stringify(found) + ' and ignoring in favor of ' + JSON.stringify(favor) + '.');
            } else {
                default_icon = icon;
            }
        } else {
            parseIcon(icon, size);
        }
    }

    return {
        android_icons,
        default_icon
    };
}