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Add warning when HOST environment variable is set (#3730)

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* Add warning when HOST environment variable is set (#3719)

* Improve HOST environment variable warning message

* Adjust text and message

Closes #3719
This commit is contained in:
Ian Sutherland
2018-01-14 12:14:37 -07:00
committed by Joe Haddad
parent 22f9fe0d33
commit b86fe056a3
1 changed files with 15 additions and 0 deletions
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15
packages/react-scripts/scripts/start.js vendored
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@@ -51,6 +51,21 @@ if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
const DEFAULT_PORT = parseInt(process.env.PORT, 10) || 3000;
const HOST = process.env.HOST || '0.0.0.0';
if (process.env.HOST) {
console.log(
chalk.cyan(
`Attempting to bind to HOST environment variable: ${chalk.yellow(
chalk.bold(process.env.HOST)
)}`
)
);
console.log(
`If this was unintentional, check that you haven't mistakenly set it in your shell.`
);
console.log(`Learn more here: ${chalk.yellow('http://bit.ly/2mwWSwH')}`);
console.log();
}
// We attempt to use the default port but if it is busy, we offer the user to
// run on a different port. `choosePort()` Promise resolves to the next free port.
choosePort(HOST, DEFAULT_PORT)