| 1 | import chalk from "chalk";
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| 2 | import { dirname, relative, resolve } from "path";
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| 3 | import semver from "semver";
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| 4 | function resolvePackage(moduleStr, fromDir, alreadyResolved) {
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| 5 | try {
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| 6 | const resolved = resolve(require.resolve(moduleStr + "/package.json", {
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| 7 | paths: [fromDir]
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| 8 | }));
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| 9 | const resolvedEntry = resolve(require.resolve(moduleStr, {
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| 10 | paths: [fromDir]
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| 11 | }));
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| 12 | if (alreadyResolved.has(resolved)) {
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| 13 | return null;
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| 14 | }
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| 15 | alreadyResolved.add(resolved);
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| 16 | const directory = dirname(resolved);
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| 17 | return {
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| 18 | packageFile: resolved,
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| 19 | directory,
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| 20 | entry: resolvedEntry
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| 21 | };
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| 22 | }
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| 23 | catch (err) {
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| 24 | return null;
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| 25 | }
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| 26 | }
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| 27 | export function attemptModuleDeduplication(moduleStr, configuration, fromPaths) {
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| 28 | const resolved = new Set();
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| 29 | const resolvedIn = fromPaths
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| 30 | .map(dir => resolvePackage(moduleStr, dir, resolved))
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| 31 | .filter((el) => Boolean(el));
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| 32 | if (resolvedIn.length === 0) {
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| 33 | return null;
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| 34 | }
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| 35 | if (resolvedIn.length === 1) {
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| 36 | return resolvedIn[0].directory;
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| 37 | }
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| 38 | const packages = resolvedIn.map(data => {
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| 39 | const packageData = require(data.packageFile);
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| 40 | return {
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| 41 | packageData,
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| 42 | version: packageData.version,
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| 43 | ...data
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| 44 | };
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| 45 | });
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| 46 | packages.sort((a, b) => semver.compare(b.version, a.version));
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| 47 | for (const { version } of packages.slice(1)) {
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| 48 | const diff = semver.diff(packages[0].version, version);
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| 49 | if (diff === "major" || diff === "premajor") {
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| 50 | console.log(chalk.yellow(` - WARNING: Cannot deduplicate versions ${version} and ${packages[0].version} of package ${chalk.cyanBright(moduleStr)} - ${diff} release differs`));
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| 51 | return null;
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| 52 | }
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| 53 | }
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| 54 | console.log(chalk.green(` - SUCCESS: Deduplicating versions package ${chalk.cyan(moduleStr)} into ${chalk.cyan(packages[0].version)} at ${chalk.cyan(relative(configuration.context, packages[0].directory))}`));
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| 55 | for (const { version, directory } of packages.slice(1)) {
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| 56 | console.log(chalk.gray(` deduped ${version} @ ${relative(configuration.context, directory)}`));
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| 57 | }
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| 58 | return packages[0].directory;
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| 59 | }
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| 60 | export function createDeduplicationAliases(configuration, fromPaths, deduplication) {
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| 61 | const alias = {};
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| 62 | const dedupeModules = new Set([
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| 63 | ...(deduplication || []),
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| 64 | "lodash",
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| 65 | "lodash-es",
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| 66 | "iconv-lite",
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| 67 | "busboy",
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| 68 | "jsonwebtoken",
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| 69 | "ms",
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| 70 | "raw-body",
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| 71 | "send",
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| 72 | "statuses",
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| 73 | "apollo-utilities",
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| 74 | "react-apollo",
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| 75 | "apollo-client",
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| 76 | "apollo-server",
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| 77 | "graphql",
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| 78 | "webpack"
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| 79 | ]);
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| 80 | const filteredPaths = fromPaths.filter((el) => Boolean(el));
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| 81 | for (const mod of dedupeModules) {
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| 82 | if (mod == null) {
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| 83 | continue;
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| 84 | }
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| 85 | const dedupedPath = attemptModuleDeduplication(mod, configuration, filteredPaths);
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| 86 | if (dedupedPath != null) {
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| 87 | alias[mod] = dedupedPath;
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| 88 | }
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| 89 | }
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| 90 | if (alias["lodash-es"] != null) {
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| 91 | alias.lodash = alias["lodash-es"];
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| 92 | }
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| 93 | return alias;
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| 94 | }
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| 95 | |
| \ | No newline at end of file |