Jeff Skill Install Prettier

Before proceeding, ensure nvm (Node Version Manager) and Node.js are installed using the jeff-skill-install-nodejs skill.

1. Create .prettierrc.json in the project root if it doesn't already exist.

2. The content of .prettierrc.json should at a minimum contain every setting listed below (do not remove any existing setting just ensure these settings all exist and if not add them):

   {
     "printWidth": 120,
     "singleQuote": true,
     "semi": true,
     "tabWidth": 2,
     "trailingComma": "none",
     "endOfLine": "lf"
   }
   

3. Create .prettierignore in the project root if it doesn't already exist.

4. The content of .prettierignore should at a minimum contain every setting listed below (do not remove any existing setting just ensure these settings all exist and if not add them):

   node_modules
   dist
   build
   coverage
   

5. If a package.json file exists in the project root, ensure prettier:fix and prettier:check are listed as scripts command, and if these commands don't exist add them.

    "scripts":{
      "prettier:fix": "npx prettier --write .",
      "prettier:check": "npx prettier --check ."
    }
   

6. If a package.json file does NOT exist in the project root, create or append to a Makefile with prettier commands:

   • If Makefile already exists, append the prettier targets to it (only if they don't already exist)
   • If Makefile doesn't exist, create it with the prettier targets

   .PHONY: prettier-fix prettier-check
   
   prettier-fix:
       npx prettier --write .
   
   prettier-check:
       npx prettier --check .
   

7. There is no reason to have prettier configuration or dependency (outside of the two prettier:fix and prettier:check script commands in package.json, or the prettier targets in Makefile) in package.json or any other file. If extra prettier configuration exists in package.json or any other file, remove it to avoid confusion and ensure all configuration is in .prettierrc.json and .prettierignore. This also applies to "nested" package.json files in subdirectories (for example projects that have a client or cdk directory).

Additional resources

• Refer to the Prettier documentation if you need help: https://prettier.io/docs/

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