dev.writeToDisk#

• Type: boolean | ((filename: string) => boolean)
• Default: false

Controls whether the build output from development mode is written to disk.

Rsbuild by default saves the build artifacts in the memory of the dev server, thereby reducing the overhead caused by file operations.

Writing to Disk#

You can choose to write the build output to disk, which is usually used for inspecting the content of the build output or configuring proxy rules for static assets.

Simply set the dev.writeToDisk option to true:

export default {
  dev: {
    writeToDisk: true,
  },
};

Matching Specific Files#

You can also set dev.writeToDisk to a function to match only certain files. When the function returns false, the file will not be written; when it returns true, the file will be written to disk.

For example, to write files to disk while excluding hot-update temporary files:

export default {
  dev: {
    writeToDisk: (file) => !file.includes('.hot-update.'),
  },
};