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Retain posix paths in Jest config #1635

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Feb 24, 2017
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Retain posix paths in Jest config #1635

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2 changes: 1 addition & 1 deletion packages/react-scripts/scripts/eject.js
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Original file line number Diff line number Diff line change
Expand Up @@ -129,7 +129,7 @@ prompt(
// Add Jest config
console.log(' Adding ' + cyan('Jest') + ' configuration');
appPackage.jest = createJestConfig(
filePath => path.join('<rootDir>', filePath),
filePath => path.posix.join('<rootDir>', filePath),
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This wouldn't fix any wrong slashes in filePath itself though, would it?

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@Timer Timer Feb 24, 2017 •
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No, it doesn't, but we always pass it /, and path.win32 switches those to \.
See https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/utils/createJestConfig.js#L24.

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I was looking at "setupFiles": [ "<rootDir>\\config\\polyfills.js" ] from #1417. Doesn't this mean the whole path needs to be fixed?

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To clarify, path.win32 supports / and \ (and outputs \) but path.posix only supports /.

See this discrete note at the bottom: https://nodejs.org/api/path.html#path_path_win32

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I was looking at "setupFiles": [ "\config\polyfills.js" ] from #1417. Doesn't this mean the whole path needs to be fixed?

The problem is that the windows flavor of path.join will switch / to \, this prevents that from happening. We always pass it / so we don't need to fix the whole path.

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You're right, just checked. 👍

null,
true
);
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2 changes: 1 addition & 1 deletion packages/react-scripts/scripts/test.js
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Expand Up @@ -32,7 +32,7 @@ const createJestConfig = require('../utils/createJestConfig');
const path = require('path');
const paths = require('../config/paths');
argv.push('--config', JSON.stringify(createJestConfig(
relativePath => path.resolve(__dirname, '..', relativePath),
relativePath => path.posix.resolve(__dirname.replace(/[\\]+/g, path.posix.sep), '..', relativePath),
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path.posix doesn't replace \ with / so we have to do it manually.
/cc @gaearon

path.resolve(paths.appSrc, '..'),
false
)));
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