[BUG] Checking all files when using only_changed and dry

[olaven]

Hi! Thank you for maintaining this action :-)
I'm unfortunaltely experiencing what I believe is unexpected behaviour when using the config below.

What exactly happened?
Fails even though all files in changed in the latest commit are formatted properly.

Steps to reproduce the behavior:

1. add code to a file, and format it according to the .prettierrc
2. use the following github job:

jobs:
  prettier:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          ref: ${{ github.head_ref }}
          fetch-depth: 0
      - name: Prettify code
        uses: creyD/prettier_action@v3.3
        with:
          dry: True
          only_changed: True
          prettier_options: --write **/*.{ts,js} --config ./.prettierrc
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

What should've happened?
I expected the job to pass. Other files in the repository are
not properly formatted, but I expected those to be ignored due to only_changed: True.

I'm using v3.3.

[ghost]

I'm experiencing the same issue with v4.0. @olaven what about you?

[andycookfr]

I'm still getting this too.

    INPUT_COMMIT_MESSAGE: Prettified Code!
    INPUT_COMMIT_DESCRIPTION: 
    INPUT_SAME_COMMIT: false
    INPUT_COMMIT_OPTIONS: 
    INPUT_FILE_PATTERN: *
    INPUT_PRETTIER_OPTIONS: --check **/*.{js,jsx,less}
    INPUT_DRY: true
    INPUT_PRETTIER_VERSION: false
    INPUT_ONLY_CHANGED: true
    INPUT_PRETTIER_PLUGINS: 
    INPUT_WORKING_DIRECTORY: false
    INPUT_GITHUB_TOKEN: ***

The output suggests that there are no matching files (as I'd expect; my PR has no js/jsx/less changes):

Installing prettier...
Prettifying files...
Files:
Checking formatting...
...

But then goes on to run all files in the repo anyway and fails.

EDIT: This is running the latest version of the action, 4.1.1

[adamaraujoglobant]

I have the same problem. Even using the configuration to run only in the files changed, the action is trying to run in all files on repo.

[junzhengca]

I am experiencing this exact same problem with v4.2

[gelashviligiorgi]

+1 v4.2 and v4.0

[bkona-alopa]

I have the same problem with the version 4.3

[allisonee]

+1, same issue v4.3

[wrainbird]

I am also getting this on v4.3