ci: update diff action

diff action output wasn't looking right anyore, and there was a TODO
saying it was abandoned. So switch to a newer diff system that just had
a release in March of 2026.

Signed-off-by: Bill Roberts <bill.c.roberts@gmail.com>

Author: williamcroberts

.github/workflows/main.yml

@@ -29,31 +29,31 @@ jobs:
         name: Check out the repo
         uses: actions/checkout@v4
       -
+        id: changes
         name: Check Diff for Changes
-        # TODO replace get-diff-action, as it is no longer maintained since 2023-11-24
-        uses: technote-space/get-diff-action@v6
+        uses: dorny/paths-filter@v4
         with:
-          FILES: |
-            ${{ matrix.distro }}.docker.m4
-          PATTERNS: |
-            modules/*
+          filters: |
+            build:
+              - ${{ matrix.distro }}.docker.m4
+              - modules/*
       -
         name: Build the Dockerfiles
         run: make -j $(nproc)
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v3
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'
       -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'
       -
         name: Build Docker Images
         uses: docker/build-push-action@v6
         with:
           push: false
           context: .
           file: ./${{ matrix.distro }}.docker
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'

.github/workflows/publish.yml

@@ -32,40 +32,40 @@ jobs:
         name: Check out the repo
         uses: actions/checkout@v4
       -
+        id: changes
         name: Check Diff for Changes
-        # TODO replace get-diff-action, as it is no longer maintained since 2023-11-24
-        uses: technote-space/get-diff-action@v6
+        uses: dorny/paths-filter@v4
         with:
-          FILES: |
-            ${{ matrix.distro }}.docker.m4
-          PATTERNS: |
-            modules/*
+          filters: |
+            build:
+              - ${{ matrix.distro }}.docker.m4
+              - modules/*
       -
         name: Build the Dockerfiles
         run: make -j $(nproc)
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v3
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'
       -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'
       -
         name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'
       -
         name: Push to GitHub Packages
         uses: docker/build-push-action@v6
         with:
-          push: true
+          push: 'true'
           context: .
           file: ./${{ matrix.distro }}.docker
           tags: ghcr.io/${{ github.repository_owner }}/${{ matrix.distro }}:latest
-        if: env.GIT_DIFF
+        if: steps.changes.outputs.build == 'true'