72 lines
2.2 KiB
JavaScript
72 lines
2.2 KiB
JavaScript
const { getDefaultConfig } = require("expo/metro-config");
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const { resolve } = require("metro-resolver");
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const fs = require("fs");
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const path = require("path");
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const projectRoot = __dirname;
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const serverSrcRoot = path.resolve(projectRoot, "../server/src");
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const relaySrcRoot = path.resolve(projectRoot, "../relay/src");
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const customWebPlatform = (process.env.PASEO_WEB_PLATFORM ?? "")
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.trim()
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.replace(/^\./, "")
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.toLowerCase();
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const config = getDefaultConfig(projectRoot);
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const defaultResolveRequest = config.resolver.resolveRequest ?? resolve;
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config.transformer.asyncRequireModulePath = require.resolve(
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"@expo/metro-config/build/async-require"
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);
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function isLocalModuleImport(moduleName) {
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return (
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moduleName.startsWith("./") ||
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moduleName.startsWith("../") ||
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moduleName.startsWith("@/") ||
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path.isAbsolute(moduleName)
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);
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}
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function resolveWithCustomWebOverlay(context, moduleName, platform) {
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const shouldResolveCustomWebVariant =
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platform === "web" &&
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customWebPlatform.length > 0 &&
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customWebPlatform !== "web" &&
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isLocalModuleImport(moduleName);
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if (shouldResolveCustomWebVariant) {
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const overlayContext = {
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...context,
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// Resolve only "<custom-platform>.<ext>" variants in overlay mode.
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sourceExts: context.sourceExts.map((ext) => `${customWebPlatform}.${ext}`),
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preferNativePlatform: false,
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};
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try {
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return defaultResolveRequest(overlayContext, moduleName, null);
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} catch {
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// Ignore overlay misses and continue with normal web resolution.
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}
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}
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return defaultResolveRequest(context, moduleName, platform);
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}
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config.resolver.resolveRequest = (context, moduleName, platform) => {
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const origin = context.originModulePath;
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if (
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origin &&
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(origin.startsWith(serverSrcRoot) || origin.startsWith(relaySrcRoot)) &&
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moduleName.endsWith(".js")
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) {
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const tsModuleName = moduleName.replace(/\.js$/, ".ts");
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const candidatePath = path.resolve(path.dirname(origin), tsModuleName);
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if (fs.existsSync(candidatePath)) {
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return resolveWithCustomWebOverlay(context, tsModuleName, platform);
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}
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}
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return resolveWithCustomWebOverlay(context, moduleName, platform);
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};
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module.exports = config;
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