index.js
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.isBrowsersQueryValid = isBrowsersQueryValid;
exports.default = getTargets;
Object.defineProperty(exports, "unreleasedLabels", {
enumerable: true,
get: function () {
return _targets.unreleasedLabels;
}
});
Object.defineProperty(exports, "prettifyTargets", {
enumerable: true,
get: function () {
return _pretty.prettifyTargets;
}
});
Object.defineProperty(exports, "getInclusionReasons", {
enumerable: true,
get: function () {
return _debug.getInclusionReasons;
}
});
Object.defineProperty(exports, "filterItems", {
enumerable: true,
get: function () {
return _filterItems.default;
}
});
Object.defineProperty(exports, "isRequired", {
enumerable: true,
get: function () {
return _filterItems.isRequired;
}
});
var _browserslist = _interopRequireDefault(require("browserslist"));
var _levenary = _interopRequireDefault(require("levenary"));
var _invariant = _interopRequireDefault(require("invariant"));
var _nativeModules = _interopRequireDefault(require("@babel/compat-data/native-modules"));
var _utils = require("./utils");
var _targets = require("./targets");
var _options = require("./options");
var _pretty = require("./pretty");
var _debug = require("./debug");
var _filterItems = _interopRequireWildcard(require("./filter-items"));
function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const browserslistDefaults = _browserslist.default.defaults;
const validBrowserslistTargets = [...Object.keys(_browserslist.default.data), ...Object.keys(_browserslist.default.aliases)];
function objectToBrowserslist(object) {
return Object.keys(object).reduce((list, targetName) => {
if (validBrowserslistTargets.indexOf(targetName) >= 0) {
const targetVersion = object[targetName];
return list.concat(`${targetName} ${targetVersion}`);
}
return list;
}, []);
}
function validateTargetNames(targets) {
const validTargets = Object.keys(_options.TargetNames);
for (const target in targets) {
if (!_options.TargetNames[target]) {
throw new Error(`Invalid Option: '${target}' is not a valid target
Maybe you meant to use '${(0, _levenary.default)(target, validTargets)}'?`);
}
}
return targets;
}
function isBrowsersQueryValid(browsers) {
return typeof browsers === "string" || Array.isArray(browsers);
}
function validateBrowsers(browsers) {
(0, _invariant.default)(typeof browsers === "undefined" || isBrowsersQueryValid(browsers), `Invalid Option: '${String(browsers)}' is not a valid browserslist query`);
return browsers;
}
function getLowestVersions(browsers) {
return browsers.reduce((all, browser) => {
const [browserName, browserVersion] = browser.split(" ");
const normalizedBrowserName = _targets.browserNameMap[browserName];
if (!normalizedBrowserName) {
return all;
}
try {
const splitVersion = browserVersion.split("-")[0].toLowerCase();
const isSplitUnreleased = (0, _utils.isUnreleasedVersion)(splitVersion, browserName);
if (!all[normalizedBrowserName]) {
all[normalizedBrowserName] = isSplitUnreleased ? splitVersion : (0, _utils.semverify)(splitVersion);
return all;
}
const version = all[normalizedBrowserName];
const isUnreleased = (0, _utils.isUnreleasedVersion)(version, browserName);
if (isUnreleased && isSplitUnreleased) {
all[normalizedBrowserName] = (0, _utils.getLowestUnreleased)(version, splitVersion, browserName);
} else if (isUnreleased) {
all[normalizedBrowserName] = (0, _utils.semverify)(splitVersion);
} else if (!isUnreleased && !isSplitUnreleased) {
const parsedBrowserVersion = (0, _utils.semverify)(splitVersion);
all[normalizedBrowserName] = (0, _utils.semverMin)(version, parsedBrowserVersion);
}
} catch (e) {}
return all;
}, {});
}
function outputDecimalWarning(decimalTargets) {
if (!(decimalTargets == null ? void 0 : decimalTargets.length)) {
return;
}
console.log("Warning, the following targets are using a decimal version:");
console.log("");
decimalTargets.forEach(({
target,
value
}) => console.log(` ${target}: ${value}`));
console.log("");
console.log("We recommend using a string for minor/patch versions to avoid numbers like 6.10");
console.log("getting parsed as 6.1, which can lead to unexpected behavior.");
console.log("");
}
function semverifyTarget(target, value) {
try {
return (0, _utils.semverify)(value);
} catch (error) {
throw new Error(`Invalid Option: '${value}' is not a valid value for 'targets.${target}'.`);
}
}
const targetParserMap = {
__default(target, value) {
const version = (0, _utils.isUnreleasedVersion)(value, target) ? value.toLowerCase() : semverifyTarget(target, value);
return [target, version];
},
node(target, value) {
const parsed = value === true || value === "current" ? process.versions.node : semverifyTarget(target, value);
return [target, parsed];
}
};
function getTargets(inputTargets = {}, options = {}) {
const targetOpts = {};
let {
browsers
} = inputTargets;
if (inputTargets.esmodules) {
const supportsESModules = _nativeModules.default["es6.module"];
browsers = Object.keys(supportsESModules).map(browser => `${browser} ${supportsESModules[browser]}`).join(", ");
}
const browsersquery = validateBrowsers(browsers);
const input = Object.assign({}, inputTargets);
delete input.esmodules;
delete input.browsers;
let targets = validateTargetNames(input);
const shouldParseBrowsers = !!browsersquery;
const hasTargets = shouldParseBrowsers || Object.keys(targets).length > 0;
const shouldSearchForConfig = !options.ignoreBrowserslistConfig && !hasTargets;
if (shouldParseBrowsers || shouldSearchForConfig) {
if (!hasTargets) {
_browserslist.default.defaults = objectToBrowserslist(targets);
}
const browsers = (0, _browserslist.default)(browsersquery, {
path: options.configPath,
mobileToDesktop: true,
env: options.browserslistEnv
});
const queryBrowsers = getLowestVersions(browsers);
targets = Object.assign(queryBrowsers, targets);
_browserslist.default.defaults = browserslistDefaults;
}
const parsed = Object.keys(targets).sort().reduce((results, target) => {
var _targetParserMap$targ;
const value = targets[target];
if (typeof value === "number" && value % 1 !== 0) {
results.decimalWarnings.push({
target,
value
});
}
const parser = (_targetParserMap$targ = targetParserMap[target]) != null ? _targetParserMap$targ : targetParserMap.__default;
const [parsedTarget, parsedValue] = parser(target, value);
if (parsedValue) {
results.targets[parsedTarget] = parsedValue;
}
return results;
}, {
targets: targetOpts,
decimalWarnings: []
});
outputDecimalWarning(parsed.decimalWarnings);
return parsed.targets;
}