Option to run swiftlint only on changed files regression? about action-swiftlint HOT 6 CLOSED

Adding this part is giving me error "fatal: Not a valid object name master"
DIFF_BASE: ${{ github.base_ref }}

from action-swiftlint.

Providing paths to SwiftLint via commandline will override .swiftlint.yml.
If you use excluded, you may be able to solve it using the --force-exclude option:

       - name: GitHub Action for SwiftLint (Only files changed in the PR)
         uses: norio-nomura/action-swiftlint
         with:
           args: --force-exclude
         env:
           DIFF_BASE: ${{ github.base_ref }}

from action-swiftlint.

Thank you again Norio-san, it seems to be working now 🙌

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from action-swiftlint.

This solution works, Thank you so much.

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Adding this part is giving me error "fatal: Not a valid object name master"
DIFF_BASE: ${{ github.base_ref }}

@tumata, I fetch the base ref manually. And use my custom action-swiftlint, which check the changed files between HEAD(set from actions/checkout, a merged PR) and base_ref(master). It works for me.

...
on: pull_request
...
      - uses: actions/checkout@v2
      - name: Fetch base ref
        run: |
          git fetch --prune --no-tags --depth=1 origin +refs/heads/${{ github.base_ref }}:refs/heads/${{ github.base_ref }}
      - name: SwiftLint (Only files changed in the PR)
        uses: henry2423/action-swiftlint@Fix-PR-Lint
        with:
          args: --force-exclude --strict
        env:
           DIFF_BASE: ${{ github.base_ref }}
           DIFF_HEAD: HEAD

from action-swiftlint.