`--ignore-path` not respected when prettier executes in a subdirectory

Environments:

• Prettier Version: 1.19.1
• Running Prettier via: CLI
• Runtime: Node.js v13.8.0
• Operating System: macOS, etc.

Steps to reproduce: Repo for reproducing: https://github.com/heylookltsme/prettier-bug

1. .prettierignore file at the root of a project
2. .prettierrc in subdirectories of the project
3. Run prettier in a subdirectory, passing the --ignore-path
4. The .prettierignore file is not respected

Correct behavior when run from the root:

Bad behavior when run from a subdirectory:

Expected behavior: The .prettierignore file is respected when prettier is run in a subdirectory.

Actual behavior: Prettier fails to ignore files when it’s run in a subdirectory.

It seems like the issue is that .prettierignore must be at the root of the repo, but if prettier is executing in a subdirectory, then the ignored patterns aren’t matching because it’s comparing the file path relative to the current working directory, not to the root where the .prettierignore file lives.

I think I have a fix. This fixes the issue for me locally. I’ll submit a PR for feedback.

Thanks!

[thorn0]

In the meantime, you can do npm install prettier/prettier to install the very latest version from GitHub.

npm install prettier/prettier#next is the latest.

[thorn0]

The release should happen very soon. Stay tuned. Thanks for the contribution.