flat eslint config

eslintrc.config.js

import antfu from '@antfu/eslint-config'
import convex from '@convex-dev/eslint-plugin'

export default antfu(
  {
    // 1. Core Configuration
    svelte: true,
    stylistic: true, // Replaces Prettier
    
    // Enable type-aware rules (Required for 'no-floating-promises')
    typescript: {
      tsconfigPath: 'tsconfig.json',
    },

    // Formatters (Since Prettier extension is gone)
    formatters: {
      css: true,
      html: true,
      markdown: 'prettier',
    },

    // 2. Ignores (Merged from your old config + .gitignore is read automatically)
    ignores: [
      '**/build',
      '**/.svelte-kit',
      '**/dist',
      '**/convex/_generated',
      '**/src/convex/_generated',
      '**/src/lib/components/ui', // Keep ignoring shadcn/ui components if desired
    ],
  },

  // 3. General Rule Overrides
  {
    rules: {
      // Antfu renames '@typescript-eslint' rules to 'ts'
      'ts/no-explicit-any': 'off',

      // Revert Antfu's aggressive "auto-remove unused imports" to your preferred "warn" style
      'unused-imports/no-unused-imports': 'off', 
      'ts/no-unused-vars': [
        'warn',
        { varsIgnorePattern: '^_', argsIgnorePattern: '^_' },
      ],
    },
  },

  // 4. Convex Plugin Integration
  {
    plugins: {
      convex,
    },
    // Apply recommended convex rules
    rules: {
      ...convex.configs.recommended.rules,
    },
  },

  // 5. Convex Specific Rules (Ported from your old config)
  {
    files: ['convex/**/*.ts'],
    rules: {
      // Ensure promises are handled in DB functions
      'ts/no-floating-promises': 'error',

      // Your specific import restrictions for Convex
      'no-restricted-imports': [
        'error',
        {
          patterns: [
            {
              group: ['*/_generated/server'],
              importNames: ['query', 'mutation', 'action'],
              message: 'Use functions.ts for query, mutation, action',
            },
          ],
        },
      ],
    },
  },
)