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feat: Only pass hasteImplModulePath if the hasteImpl file is available in RN #417

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Merged
merged 1 commit into from
Jun 5, 2019
Merged

feat: Only pass hasteImplModulePath if the hasteImpl file is available in RN #417

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6 changes: 5 additions & 1 deletion packages/cli/src/tools/loadMetroConfig.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
import path from 'path';
import {createBlacklist} from 'metro';
import {loadConfig} from 'metro-config';
import {existsSync} from 'fs';
import {type ConfigT} from 'types';
import findSymlinkedModules from './findSymlinkedModules';

Expand All @@ -31,13 +32,16 @@ const getBlacklistRE = () => createBlacklist([/.*\/__fixtures__\/.*/]);
* Otherwise, a.native.js will not load on Windows or other platforms
*/
export const getDefaultConfig = (ctx: ConfigT) => {
const hasteImplPath = path.join(ctx.reactNativePath, 'jest/hasteImpl');
return {
resolver: {
resolverMainFields: ['react-native', 'browser', 'main'],
blacklistRE: getBlacklistRE(),
platforms: [...ctx.haste.platforms, 'native'],
providesModuleNodeModules: ctx.haste.providesModuleNodeModules,
hasteImplModulePath: path.join(ctx.reactNativePath, 'jest/hasteImpl'),
hasteImplModulePath: existsSync(hasteImplPath)
? hasteImplPath
: undefined,
},
serializer: {
getModulesRunBeforeMainModule: () => [
Expand Down