Registry / testing / ember-template-lint-plugin-prettier

ember-template-lint-plugin-prettier

library5.0.0jsnpmunverified

A plugin for ember-template-lint that integrates Prettier to lint Handlebars/Glimmer templates. Current stable version is 5.0.0, released in 2023, requiring ember-template-lint >=4.0.0 and Prettier >=3.0.0. Release cadence is irregular with major version bumps for breaking changes. Unlike manual formatting, it automatically compares templates against Prettier output, enforcing consistent code style. It supports only a single rule and is ESM-only from v4. Recommended for Ember.js projects using both ember-template-lint and Prettier.

testing devops

npm install ember-template-lint-plugin-prettier

github ↗package ↗

INSTALL

IMPORT

SIG · EMBER-TEMPLATE-LIN

ember-template-lint-plugin-prettier

testingjavascriptv5.0.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

plugin

✓ module.exports = { plugins: ['ember-template-lint-plugin-prettier'] };

✗ module.exports = { plugins: ['ember-template-lint-plugin-prettier/prettier'] };

Plugin is loaded by name; no import statement needed. Use the string identifier in the .template-lintrc.js config.

recommended config

✓ extends: ['recommended', 'ember-template-lint-plugin-prettier:recommended']

✗ extends: ['recommended', 'plugin:prettier/recommended']

Use the correct scoped config name; incorrect names will be silently ignored.

rule

✓ rules: { 'prettier': true }

✗ rules: { 'prettier/prettier': true }

The rule is named 'prettier', not 'prettier/prettier'. Setting to true applies the default config.

Configures ember-template-lint to use the prettier plugin with recommended rules.

// .template-lintrc.js 'use strict'; module.exports = { plugins: ['ember-template-lint-plugin-prettier'], extends: ['recommended', 'ember-template-lint-plugin-prettier:recommended'] };

Debug

Known issues

breakingv5 requires Prettier >=3.0.0; Prettier v2 is no longer supported.

fix

Upgrade Prettier to v3: `npm install prettier@^3.0.0`

affects: ^5.0.0

breakingv4 drops CommonJS support; plugin is ESM-only. Requires Node >=12 and ember-template-lint v4.

fix

Ensure your project uses ESM or update to Node >=12 and ember-template-lint v4.

affects: 4.0.0 - 4.2.0

breakingv3 drops Node 10 and 15 support.

fix

Upgrade Node to >=12 or use v2 if needed.

affects: 3.0.0 - 3.0.1

deprecatedThe 'prettier' rule no longer accepts options; use Prettier config files (e.g., .prettierrc) instead.

fix

Remove options from rule config and configure Prettier via .prettierrc or package.json.

affects: >=4.0.0

gotchaPlugin uses the locally installed Prettier, not any global one. Ensure prettier is in devDependencies.

fix

Install prettier as a dev dependency: `npm install --save-dev prettier`

affects: all

Errors

Common errors & fixes

Cannot find module 'ember-template-lint-plugin-prettier'

Plugin not installed or not in node_modules.

fix

Run `npm install --save-dev ember-template-lint-plugin-prettier`

Missing peer dependencies: prettier@>=3.0.0

Prettier version is too old or not installed.

fix

Update prettier: `npm install prettier@^3.0.0`

Rule 'prettier' was not found. Did you forget to load a plugin?

Plugin not specified in the `plugins` array in .template-lintrc.js.

fix

Add `plugins: ['ember-template-lint-plugin-prettier']` to your config.

Upgrade

Version history

5.0.0latest on npm

Audit

Dependencies

ember-template-lintrequiredPeer dependency; the plugin provides rules for this linter.

prettierrequiredPeer dependency; the plugin uses Prettier's formatting as the linting standard.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/ember-template-lint/ember-template-lint-plugin-prettier ↗

packagehttps://www.npmjs.com/package/ember-template-lint-plugin-prettier ↗