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eslint.config.js
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eslint.config.js
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// @ts-check
import eslint from "@eslint/js";
import deprecation from "eslint-plugin-deprecation";
import unicorn from "eslint-plugin-unicorn";
import vitest from "eslint-plugin-vitest";
import { dirname } from "path";
import tsEslint from "typescript-eslint";
import { fileURLToPath } from "url";
/** Config that will apply to all files */
const allFilesConfig = tsEslint.config({
plugins: {
unicorn,
},
rules: {
/**
* Typescript plugin overrides
*/
"@typescript-eslint/no-non-null-assertion": "off",
"@typescript-eslint/no-explicit-any": "off",
"@typescript-eslint/no-inferrable-types": "off",
"@typescript-eslint/no-empty-function": "off",
"@typescript-eslint/no-empty-interface": "off",
"@typescript-eslint/no-unused-vars": [
"warn",
{ varsIgnorePattern: "^_", argsIgnorePattern: ".*", ignoreRestSiblings: true },
],
// This rule is bugged https://github.com/typescript-eslint/typescript-eslint/issues/6538
"@typescript-eslint/no-misused-promises": "off",
/**
* Unicorn
*/
"unicorn/filename-case": ["error", { case: "kebabCase" }],
/**
* Core
*/
"no-inner-declarations": "off",
"no-empty": "off",
"no-constant-condition": "off",
"no-case-declarations": "off",
"no-ex-assign": "off",
"no-undef": "off",
"prefer-const": [
"warn",
{
destructuring: "all",
},
],
eqeqeq: ["warn", "always", { null: "ignore" }],
// Do not want console.log left from debugging or using console.log for logging. Use the program logger.
"no-console": "warn",
// Symbols should have a description so it can be serialized.
"symbol-description": "warn",
},
});
/** Config that will apply to all typescript files only
* @param {string} root
*/
export function getTypeScriptProjectRules(root) {
return tsEslint.config({
files: ["**/*.ts", "**/*.tsx"],
ignores: ["packages/http-client-csharp/**/*"], // Ignore isolated modules
plugins: {
deprecation,
},
languageOptions: {
parserOptions: {
project: "./tsconfig.json",
tsconfigRootDir: root,
},
},
rules: {
// Only put rules here that need typescript project information
"@typescript-eslint/no-floating-promises": "error",
"deprecation/deprecation": ["warn"],
},
});
}
/** Config that will apply to all test files only */
const testFilesConfig = tsEslint.config({
/**
* Test files specific rules
*/
files: ["**/*.test.ts"],
plugins: { vitest },
rules: {
"vitest/no-focused-tests": "warn",
"vitest/no-identical-title": "error",
"vitest/no-commented-out-tests": "warn",
"vitest/no-import-node-test": "warn",
"vitest/require-local-test-context-for-concurrent-snapshots": "warn",
"vitest/valid-describe-callback": "warn",
"vitest/valid-expect": "warn",
"vitest/consistent-test-it": ["warn", { fn: "it" }],
"vitest/no-done-callback": ["warn"],
"vitest/no-duplicate-hooks": ["warn"],
"@typescript-eslint/no-non-null-asserted-optional-chain": "off",
},
});
export const TypeSpecCommonEslintConfigs = [
eslint.configs.recommended,
...tsEslint.configs.recommended,
...allFilesConfig,
...testFilesConfig,
];
export default tsEslint.config(
{
ignores: [
"**/dist/**/*",
"**/.temp/**/*",
"**/generated-defs/*",
"**/website/build/**/*",
"**/.docusaurus/**/*",
"packages/compiler/templates/**/*", // Ignore the templates which might have invalid code and not follow exactly our rules.
// TODO: enable
"**/.scripts/**/*",
"eng/tsp-core/scripts/**/*",
"eng/common/scripts/**/*",
"packages/*/scripts/**/*",
],
},
...TypeSpecCommonEslintConfigs,
...getTypeScriptProjectRules(dirname(fileURLToPath(import.meta.url)))
);