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add DISABLE_CONSOLE_CLEARING env variable to .... disable console clearing #6632

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add DISABLE_CONSOLE_CLEARING env variable to .... disable console clearing #6632

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1 change: 1 addition & 0 deletions docusaurus/docs/advanced-configuration.md
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Expand Up @@ -18,3 +18,4 @@ You can adjust various development and production settings by setting environmen
| GENERATE_SOURCEMAP | 🚫 Ignored | ✅ Used | When set to `false`, source maps are not generated for a production build. This solves OOM issues on some smaller machines. |
| NODE_PATH | ✅ Used | ✅ Used | Same as [`NODE_PATH` in Node.js](https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders), but only relative folders are allowed. Can be handy for emulating a monorepo setup by setting `NODE_PATH=src`. |
| INLINE_RUNTIME_CHUNK | 🚫 Ignored | ✅ Used | By default, Create React App will embed the runtime script into `index.html` during the production build. When set to `false`, the script will not be embedded and will be imported as usual. This is normally required when dealing with CSP. |
| DISABLE_CONSOLE_CLEARING | ✅ Used | ✅ Used | When set to `true`, the terminal won't get cleared |
2 changes: 1 addition & 1 deletion packages/react-dev-utils/README.md
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Expand Up @@ -158,7 +158,7 @@ if (

#### `clearConsole(): void`

Clears the console, hopefully in a cross-platform way.
Clears the console, hopefully in a cross-platform way. Can be disabled with setting `DISABLE_CONSOLE_CLEARING=true` in your environment

```js
var clearConsole = require('react-dev-utils/clearConsole');
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3 changes: 3 additions & 0 deletions packages/react-dev-utils/clearConsole.js
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Expand Up @@ -8,6 +8,9 @@
'use strict';

function clearConsole() {
if (process.env.DISABLE_CONSOLE_CLEARING === 'true') {
return;
}
process.stdout.write(
process.platform === 'win32' ? '\x1B[2J\x1B[0f' : '\x1B[2J\x1B[3J\x1B[H'
);
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