@tiny-css/compiler
Version:
The compiler for compiling & reducing the bundle size of tiny-css
207 lines (206 loc) • 10.4 kB
JavaScript
;
var __makeTemplateObject = (this && this.__makeTemplateObject) || function (cooked, raw) {
if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
return cooked;
};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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) : adopt(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.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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();
_.trys.pop(); continue;
}
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 };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.buildCSSClass = void 0;
var css_1 = __importDefault(require("css"));
var fs = __importStar(require("fs"));
var is_url_1 = __importDefault(require("is-url"));
var node_fetch_1 = __importDefault(require("node-fetch"));
var os_1 = __importDefault(require("os"));
var path_1 = require("path");
var chalk_1 = __importDefault(require("chalk"));
var ASTTypes_1 = require("./utils/ASTTypes");
/**
* returns only those selectors which are class selectors
* not HTML tag attribute or sudo selectors
*/
function mapSelectors(selector) {
// removing any >/+ signs from the declarations
selector.replace(/>|\+/g, ",");
var onlyClassesRegexp = /\.(\w|-?|_|\d)+/g;
var matched = selector.match(onlyClassesRegexp);
if (matched) {
return matched;
}
}
/**
* mapRules for checking rules & returning
* the perfect selectors for the map function
*/
function mapRules(rule) {
var _a;
var definitelyRule = rule;
if (definitelyRule.type === ASTTypes_1.ASTTypes.rule && definitelyRule.selectors) {
var selectorReal = (_a = definitelyRule.selectors) === null || _a === void 0 ? void 0 : _a.map(mapSelectors).filter(Boolean);
return selectorReal;
}
var mediaRule = rule;
if (mediaRule.type === ASTTypes_1.ASTTypes.media && mediaRule.rules) {
// CAUTION: Uses Recursion
var mediaSelectors = mediaRule.rules
.map(mapRules)
.filter(Boolean)
.flat(1);
return mediaSelectors;
}
}
function createCache(cacheFile, content) {
return __awaiter(this, void 0, void 0, function () {
var error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, , 4]);
return [4 /*yield*/, fs.promises.mkdir(path_1.join(os_1.default.homedir(), ".tiny-css", "stylesheets"), { recursive: true })];
case 1:
_a.sent();
return [4 /*yield*/, fs.promises.writeFile(cacheFile, content, "utf-8")];
case 2:
_a.sent();
return [2 /*return*/, {
destination: cacheFile,
size: content.length,
}];
case 3:
error_1 = _a.sent();
console.log(createCache.name + ": ", error_1);
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
});
}
/**
* @description Takes a css filepath and returns an array of selector classes
* @author KR Tirtho
* @param {string} cssPath - This can be a absolute/relative `fs-path` or a `cdn` link
* @param {BuildCSSClassOptions} { version, disabledCache }
* @return {*} {Promise<string[]>}
*/
function buildCSSClass(cssPath, _a) {
var _b;
var version = _a.version, disabledCache = _a.disabledCache;
return __awaiter(this, void 0, void 0, function () {
var content, urlDescription, cachedFileLocation, cachedFile, error_2, response, resStr, e_1, stylesheetObj, selectors, uniqueSelectors;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
content = "";
if (!is_url_1.default(cssPath)) return [3 /*break*/, 12];
urlDescription = cssPath.split("/");
cachedFileLocation = path_1.join(os_1.default.homedir(), ".tiny-css", "stylesheets", version + urlDescription[urlDescription.length - 1]);
_c.label = 1;
case 1:
_c.trys.push([1, 3, , 11]);
return [4 /*yield*/, fs.promises.readFile(cachedFileLocation, "utf-8")];
case 2:
cachedFile = _c.sent();
console.log(chalk_1.default.yellowBright(templateObject_1 || (templateObject_1 = __makeTemplateObject(["\u26A0 Using previously cached ", ""], ["\u26A0 Using previously cached ", ""])), cachedFileLocation));
content = cachedFile;
return [3 /*break*/, 11];
case 3:
error_2 = _c.sent();
_c.label = 4;
case 4:
_c.trys.push([4, 9, , 10]);
console.warn(chalk_1.default.yellowBright("⚠ No previously cached file found so downloading. You can disable caching by using `--disable-cache` option"));
return [4 /*yield*/, node_fetch_1.default(cssPath)];
case 5:
response = _c.sent();
console.log(chalk_1.default.hex("##9b30ff")(templateObject_2 || (templateObject_2 = __makeTemplateObject(["Now downloading file from ", ""], ["Now downloading file from ", ""])), cssPath));
return [4 /*yield*/, response.buffer()];
case 6:
resStr = (_c.sent()).toString();
if (!!disabledCache) return [3 /*break*/, 8];
return [4 /*yield*/, createCache(cachedFileLocation, resStr)];
case 7:
_c.sent();
_c.label = 8;
case 8:
content = resStr;
console.log(chalk_1.default.greenBright(templateObject_3 || (templateObject_3 = __makeTemplateObject(["\u2714 Finished caching the file"], ["\u2714 Finished caching the file"]))));
return [3 /*break*/, 10];
case 9:
e_1 = _c.sent();
console.log(e_1);
return [3 /*break*/, 10];
case 10: return [3 /*break*/, 11];
case 11: return [3 /*break*/, 13];
case 12:
content = fs.readFileSync(cssPath, { encoding: "utf-8" });
_c.label = 13;
case 13:
stylesheetObj = css_1.default.parse(content);
selectors = (_b = stylesheetObj.stylesheet) === null || _b === void 0 ? void 0 : _b.rules.map(mapRules).filter(Boolean).flat(2);
uniqueSelectors = Array.from(new Set(selectors));
return [2 /*return*/, {
classnames: uniqueSelectors,
stylesheetObj: stylesheetObj,
}];
}
});
});
}
exports.buildCSSClass = buildCSSClass;
var templateObject_1, templateObject_2, templateObject_3;