targets-parser.js 6.8 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = exports.semverMin = exports.isBrowsersQueryValid = void 0;
  6. function _browserslist() {
  7. const data = _interopRequireDefault(require("browserslist"));
  8. _browserslist = function () {
  9. return data;
  10. };
  11. return data;
  12. }
  13. function _invariant() {
  14. const data = _interopRequireDefault(require("invariant"));
  15. _invariant = function () {
  16. return data;
  17. };
  18. return data;
  19. }
  20. function _semver() {
  21. const data = _interopRequireDefault(require("semver"));
  22. _semver = function () {
  23. return data;
  24. };
  25. return data;
  26. }
  27. var _utils = require("./utils");
  28. var _builtInModules = _interopRequireDefault(require("../data/built-in-modules.json"));
  29. var _options = require("./options");
  30. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  31. const browserslistDefaults = _browserslist().default.defaults;
  32. const validBrowserslistTargets = [...Object.keys(_browserslist().default.data), ...Object.keys(_browserslist().default.aliases)];
  33. const objectToBrowserslist = object => {
  34. return Object.keys(object).reduce((list, targetName) => {
  35. if (validBrowserslistTargets.indexOf(targetName) >= 0) {
  36. const targetVersion = object[targetName];
  37. return list.concat(`${targetName} ${targetVersion}`);
  38. }
  39. return list;
  40. }, []);
  41. };
  42. const validateTargetNames = targets => {
  43. const validTargets = Object.keys(_options.TargetNames);
  44. for (const target in targets) {
  45. if (!_options.TargetNames[target]) {
  46. throw new Error(`Invalid Option: '${target}' is not a valid target
  47. Maybe you meant to use '${(0, _utils.findSuggestion)(validTargets, target)}'?`);
  48. }
  49. }
  50. };
  51. const browserNameMap = {
  52. and_chr: "chrome",
  53. android: "android",
  54. chrome: "chrome",
  55. edge: "edge",
  56. firefox: "firefox",
  57. ie: "ie",
  58. ios_saf: "ios",
  59. node: "node",
  60. opera: "opera",
  61. safari: "safari",
  62. samsung: "samsung"
  63. };
  64. const isBrowsersQueryValid = browsers => typeof browsers === "string" || Array.isArray(browsers);
  65. exports.isBrowsersQueryValid = isBrowsersQueryValid;
  66. const validateBrowsers = browsers => {
  67. (0, _invariant().default)(typeof browsers === "undefined" || isBrowsersQueryValid(browsers), `Invalid Option: '${browsers}' is not a valid browserslist query`);
  68. return browsers;
  69. };
  70. const semverMin = (first, second) => {
  71. return first && _semver().default.lt(first, second) ? first : second;
  72. };
  73. exports.semverMin = semverMin;
  74. const mergeBrowsers = (fromQuery, fromTarget) => {
  75. return Object.keys(fromTarget).reduce((queryObj, targKey) => {
  76. if (targKey !== _options.TargetNames.browsers) {
  77. queryObj[targKey] = fromTarget[targKey];
  78. }
  79. return queryObj;
  80. }, fromQuery);
  81. };
  82. const getLowestVersions = browsers => {
  83. return browsers.reduce((all, browser) => {
  84. const [browserName, browserVersion] = browser.split(" ");
  85. const normalizedBrowserName = browserNameMap[browserName];
  86. if (!normalizedBrowserName) {
  87. return all;
  88. }
  89. try {
  90. const splitVersion = browserVersion.split("-")[0].toLowerCase();
  91. const isSplitUnreleased = (0, _utils.isUnreleasedVersion)(splitVersion, browserName);
  92. if (!all[normalizedBrowserName]) {
  93. all[normalizedBrowserName] = isSplitUnreleased ? splitVersion : (0, _utils.semverify)(splitVersion);
  94. return all;
  95. }
  96. const version = all[normalizedBrowserName];
  97. const isUnreleased = (0, _utils.isUnreleasedVersion)(version, browserName);
  98. if (isUnreleased && isSplitUnreleased) {
  99. all[normalizedBrowserName] = (0, _utils.getLowestUnreleased)(version, splitVersion, browserName);
  100. } else if (isUnreleased) {
  101. all[normalizedBrowserName] = (0, _utils.semverify)(splitVersion);
  102. } else if (!isUnreleased && !isSplitUnreleased) {
  103. const parsedBrowserVersion = (0, _utils.semverify)(splitVersion);
  104. all[normalizedBrowserName] = semverMin(version, parsedBrowserVersion);
  105. }
  106. } catch (e) {}
  107. return all;
  108. }, {});
  109. };
  110. const outputDecimalWarning = decimalTargets => {
  111. if (!decimalTargets || !decimalTargets.length) {
  112. return;
  113. }
  114. console.log("Warning, the following targets are using a decimal version:");
  115. console.log("");
  116. decimalTargets.forEach(({
  117. target,
  118. value
  119. }) => console.log(` ${target}: ${value}`));
  120. console.log("");
  121. console.log("We recommend using a string for minor/patch versions to avoid numbers like 6.10");
  122. console.log("getting parsed as 6.1, which can lead to unexpected behavior.");
  123. console.log("");
  124. };
  125. const semverifyTarget = (target, value) => {
  126. try {
  127. return (0, _utils.semverify)(value);
  128. } catch (error) {
  129. throw new Error(`Invalid Option: '${value}' is not a valid value for 'targets.${target}'.`);
  130. }
  131. };
  132. const targetParserMap = {
  133. __default: (target, value) => {
  134. const version = (0, _utils.isUnreleasedVersion)(value, target) ? value.toLowerCase() : semverifyTarget(target, value);
  135. return [target, version];
  136. },
  137. node: (target, value) => {
  138. const parsed = value === true || value === "current" ? process.versions.node : semverifyTarget(target, value);
  139. return [target, parsed];
  140. }
  141. };
  142. const getTargets = (targets = {}, options = {}) => {
  143. const targetOpts = {};
  144. validateTargetNames(targets);
  145. if (targets.esmodules) {
  146. const supportsESModules = _builtInModules.default["es6.module"];
  147. targets.browsers = Object.keys(supportsESModules).map(browser => `${browser} ${supportsESModules[browser]}`).join(", ");
  148. }
  149. const browsersquery = validateBrowsers(targets.browsers);
  150. const shouldParseBrowsers = !!targets.browsers;
  151. const shouldSearchForConfig = !options.ignoreBrowserslistConfig && !Object.keys(targets).length;
  152. if (shouldParseBrowsers || shouldSearchForConfig) {
  153. _browserslist().default.defaults = objectToBrowserslist(targets);
  154. const browsers = (0, _browserslist().default)(browsersquery, {
  155. path: options.configPath
  156. });
  157. const queryBrowsers = getLowestVersions(browsers);
  158. targets = mergeBrowsers(queryBrowsers, targets);
  159. _browserslist().default.defaults = browserslistDefaults;
  160. }
  161. const parsed = Object.keys(targets).filter(value => value !== _options.TargetNames.esmodules).sort().reduce((results, target) => {
  162. if (target !== _options.TargetNames.browsers) {
  163. const value = targets[target];
  164. if (typeof value === "number" && value % 1 !== 0) {
  165. results.decimalWarnings.push({
  166. target,
  167. value
  168. });
  169. }
  170. const parser = targetParserMap[target] || targetParserMap.__default;
  171. const [parsedTarget, parsedValue] = parser(target, value);
  172. if (parsedValue) {
  173. results.targets[parsedTarget] = parsedValue;
  174. }
  175. }
  176. return results;
  177. }, {
  178. targets: targetOpts,
  179. decimalWarnings: []
  180. });
  181. outputDecimalWarning(parsed.decimalWarnings);
  182. return parsed.targets;
  183. };
  184. var _default = getTargets;
  185. exports.default = _default;