obsidian-dev-utils/dist/scripts/examples/format.prettier.ts

This is the collection of useful functions that you can use for your Obsidian plugin development

import { getFolderName } from 'obsidian-dev-utils/Path';
import { existsSync } from 'obsidian-dev-utils/ScriptUtils/NodeModules';
import {
  execFromRoot,
  getRootFolder,
  resolvePathFromRootSafe
} from 'obsidian-dev-utils/ScriptUtils/Root';

export async function invoke(): Promise<void> {
  await formatWithPrettier(true);
}

export async function formatWithPrettier(rewrite: boolean): Promise<void> {
  const PRETTIER_CONFIG_FILE_NAME = '.prettierrc.json';
  const prettierJsonPath = resolvePathFromRootSafe(PRETTIER_CONFIG_FILE_NAME);
  if (!existsSync(prettierJsonPath)) {
    const packageFolder = getRootFolder(getFolderName(import.meta.url));
    if (!packageFolder) {
      throw new Error('Could not find package folder.');
    }
    throw new Error(`${PRETTIER_CONFIG_FILE_NAME} not found`);
  }

  const command = rewrite ? '--write' : '--check';
  await execFromRoot(['npx', 'prettier', '.', command]);
}