Sync not working on labels with exceptions

[Chefski]

Description:
Sync doesn't seem to work for the directories which a label has exceptions in (partially. It removed one label). Maybe my file is setup wrong but some labels remain after there are no changes to a PR.

The remaining labels in the screenshot are code and icons.

Maybe I'm testing it too extremely? Or it's just setup incorrectly

Action version:
5.0.0

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Repro steps:
Testing on a private test repo but here is the public repo if it helps.

name: "Label PRs"

on:
  - pull_request_target

jobs:
  label-prs:
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/labeler@v5
        with:
          sync-labels: true

docs:
  - changed-files:
    - any-glob-to-any-file: '*.md'
    - any-glob-to-any-file: .github/PULL_REQUEST_TEMPLATE/*.md
    - any-glob-to-any-file: .github/pull_request_template.md
    - any-glob-to-any-file: docs/**

icons:
  - changed-files:
    - any-glob-to-any-file: svgs/*
    - any-glob-to-any-file: app/assets/appfilter.xml

code:
  - all:
  - changed-files: # Not indented as it either had the same or better results
    - any-glob-to-any-file: 'app/**'
    - any-glob-to-all-files: '!app/src/main/res/*/strings.xml'
    - any-glob-to-all-files: '!app/assets/appfilter.xml'


locale:
  - changed-files:
    - any-glob-to-any-file: app/src/main/res/*/strings.xml
    

Expected behavior:
Each label will be removed after all changes have been removed.

Actual behavior:
Labels remain even after the PR has no changed files (only code, icons and/or locale

[MaksimZhukov]

Hello @Chefski!
Thank you for reporting this!
We will take a look and contact you as soon as we have any updates!

[lamdor]

So what I think is happening is that action/labeler@v5 is seeing a stale copy from a different branch. I'm trying to update the .github/labeler.yml on the dependabot PR that updates the action to v5 and that's where I was seeing this issue. But looking at the failing jobs, they doing The configuration file (path: .github/labeler.yml) was found locally, reading from the file. We use self-hosted runners where a different workflow could definitely checkout to run tests or whatnot. These checkouts stick around and rely on action/checkout to force it to be at the correct ref. What I'm hypothesizing is that actions/labeler@v5 is seeing the older checkout.

For right now, I'm going to add a actions/checkout@v4 step before the labeler to ensure that it's getting the labeler.yml from the correct branch.

[broksonic21]

@lamdor i was trying to repo as well in a non-private repo and had same thought - in our private repo, that would match what we see. To fix, we need a format that works in both v4 and v5 lest every branch needs to update at once, which is nearly impossible for companies. - or else it needs to read just from the appropriate branch it's running from