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added check for typescript template and unsupported node version #7839

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Merged
merged 2 commits into from
Oct 17, 2019
Merged

added check for typescript template and unsupported node version #7839

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794f9b2
added check for typescript template and unsupported node version
awaseem Oct 17, 2019
1ec7efe
addressed code review feedback regarding syntax and spelling mistakes
awaseem Oct 17, 2019
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31 changes: 20 additions & 11 deletions packages/create-react-app/createReactApp.js
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Original file line number Diff line number Diff line change
Expand Up @@ -193,6 +193,26 @@ function createApp(
useTypescript,
template
) {
const unsupportedNodeVersion = !semver.satisfies(process.version, '>=8.10.0');
if (unsupportedNodeVersion && useTypescript) {
console.log(
chalk.red(
`You are using Node ${process.version} with the TypeScript template. Node 8.10 or higher is required to use TypeScript.\n`
)
);

process.exit(1);
} else if (unsupportedNodeVersion) {
console.log(
chalk.yellow(
`You are using Node ${process.version} so the project will be bootstrapped with an old unsupported version of tools.\n\n` +
`Please update to Node 8.10 or higher for a better, fully supported experience.\n`
)
);
// Fall back to latest supported react-scripts on Node 4
version = 'react-scripts@0.9.x';
}

const root = path.resolve(name);
const appName = path.basename(root);

Expand Down Expand Up @@ -222,17 +242,6 @@ function createApp(
process.exit(1);
}

if (!semver.satisfies(process.version, '>=8.10.0')) {
console.log(
chalk.yellow(
`You are using Node ${process.version} so the project will be bootstrapped with an old unsupported version of tools.\n\n` +
`Please update to Node 8.10 or higher for a better, fully supported experience.\n`
)
);
// Fall back to latest supported react-scripts on Node 4
version = 'react-scripts@0.9.x';
}

if (!useYarn) {
const npmInfo = checkNpmVersion();
if (!npmInfo.hasMinNpm) {
Expand Down