83 lines
2.1 KiB
JavaScript
83 lines
2.1 KiB
JavaScript
// @flow
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import {
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getInclusionReasons,
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type Targets,
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} from "@babel/helper-compilation-targets";
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const wordEnds = (size: number) => {
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return size > 1 ? "s" : "";
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};
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// Outputs a message that shows which target(s) caused an item to be included:
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// transform-foo { "edge":"13", "firefox":"49", "ie":"10" }
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export const logPluginOrPolyfill = (
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item: string,
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targetVersions: Targets,
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list: { [key: string]: Targets },
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) => {
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const filteredList = getInclusionReasons(item, targetVersions, list);
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const formattedTargets = JSON.stringify(filteredList)
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.replace(/,/g, ", ")
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.replace(/^\{"/, '{ "')
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.replace(/"\}$/, '" }');
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console.log(` ${item} ${formattedTargets}`);
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};
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export const logEntryPolyfills = (
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polyfillName: string,
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importPolyfillIncluded: boolean,
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polyfills: Set<string>,
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filename: string,
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polyfillTargets: Targets,
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allBuiltInsList: { [key: string]: Targets },
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) => {
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if (!importPolyfillIncluded) {
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console.log(`\n[${filename}] Import of ${polyfillName} was not found.`);
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return;
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}
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if (!polyfills.size) {
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console.log(
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`\n[${filename}] Based on your targets, polyfills were not added.`,
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);
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return;
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}
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console.log(
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`\n[${filename}] Replaced ${polyfillName} entries with the following polyfill${wordEnds(
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polyfills.size,
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)}:`,
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);
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for (const polyfill of polyfills) {
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logPluginOrPolyfill(polyfill, polyfillTargets, allBuiltInsList);
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}
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};
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export const logUsagePolyfills = (
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polyfills: Set<string>,
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filename: string,
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polyfillTargets: Targets,
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allBuiltInsList: { [key: string]: Targets },
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) => {
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// normalize filename to generate consistent preset-env test fixtures
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if (process.env.BABEL_ENV === "test") {
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filename = filename.replace(/\\/g, "/");
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}
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if (!polyfills.size) {
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console.log(
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`\n[${filename}] Based on your code and targets, core-js polyfills were not added.`,
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);
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return;
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}
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console.log(
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`\n[${filename}] Added following core-js polyfill${wordEnds(
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polyfills.size,
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)}:`,
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);
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for (const polyfill of polyfills) {
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logPluginOrPolyfill(polyfill, polyfillTargets, allBuiltInsList);
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}
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};
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