react-static-plugin-favicons/node.api.js

Favicons plugin for React-Static

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
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            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
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            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
var _this = this;
Object.defineProperty(exports, "__esModule", { value: true });
var react_static_favicons_1 = __importDefault(require("@kuroku/react-static-favicons"));
;
;
;
;
exports.default = (function (options) {
    if (typeof options.inputFile === 'undefined') {
        console.error('[react-static-plugin-favicons] Please specify a source image for your favicon through the `inputFile` parameter.');
        return;
    }
    var reactStaticFavicons;
    return {
        afterGetConfig: function (configData) {
            if (typeof reactStaticFavicons === 'undefined') {
                reactStaticFavicons = new react_static_favicons_1.default({
                    inputFile: options.inputFile,
                    outputDir: options.outputDir || configData.config.paths.ASSETS,
                    configuration: options.configuration || {},
                });
            }
            return configData;
        },
        beforeRenderToHtml: function (element, _a) {
            var meta = _a.meta;
            return __awaiter(_this, void 0, void 0, function () {
                var _b;
                return __generator(this, function (_c) {
                    switch (_c.label) {
                        case 0:
                            _b = meta;
                            return [4 /*yield*/, renderFaviconsOnce(reactStaticFavicons)];
                        case 1:
                            _b.faviconsElements = _c.sent();
                            return [2 /*return*/, element];
                    }
                });
            });
        },
        headElements: function (elements, _a) {
            var meta = _a.meta;
            return __awaiter(_this, void 0, void 0, function () {
                return __generator(this, function (_b) {
                    return [2 /*return*/, elements.concat([
                            meta.faviconsElements
                        ])];
                });
            });
        }
    };
});
var renderPromise;
/**
 * Singleton process to render favicons
 *
 * Because the Node hooks (e.g. `beforeRenderToHtml`) of React Static get called a lot, simply
 * calling ReactStaticFavicons.render() would spawn a lot of process rendering favicons.
 * Hence, this function only calls that once, and returns that promise again if called again.
 *
 * @param rsf Configured instance of React Static Favicons
 * @returns Promise that completes once all icons have been generated, returning the elements that
 *          should be added to a page's `<head>`.
 */
function renderFaviconsOnce(rsf) {
    // We cannot test this due to storing `renderPromise` in the module scope, and thus preserving it
    // in different tests:
    /* istanbul ignore else */
    if (typeof renderPromise === 'undefined') {
        renderPromise = rsf.render();
    }
    return renderPromise;
}