Specify shell in workflows

Author: thomasleplus

.github/workflows/automerge.yml

@@ -16,8 +16,10 @@ jobs:
         env:
           RELEASE_TOKEN: ${{ secrets.RELEASE_TOKEN }}
         if: env.RELEASE_TOKEN != ''
+        shell: bash
         run: echo "${RELEASE_TOKEN}" | gh auth login --with-token
       - name: Enable auto-merge for Dependabot PRs
+        shell: bash
         run: |
           # Checking the PR title is a poor substitute for the actual PR changes
           # but as long as this is used only with dependabot PRs,

.github/workflows/docker-build-push.yml

@@ -16,6 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set IMAGE
+        shell: bash
         run: echo "IMAGE=${GITHUB_REPOSITORY#*/docker-}" >> "${GITHUB_ENV}"
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: docker/setup-qemu-action@4574d27a4764455b42196d70a065bc6853246a25 # v3.4.0
@@ -31,6 +32,7 @@ jobs:
             type=sha
       - name: Test the Docker image
         working-directory: ${{ env.IMAGE }}
+        shell: bash
         run: docker compose -f docker-compose.test.yml run sut
       - uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
         if: github.ref == 'refs/heads/main'

.github/workflows/docker-release.yml

@@ -13,6 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set IMAGE
+        shell: bash
         run: echo "IMAGE=${GITHUB_REPOSITORY#*/docker-}" >> "${GITHUB_ENV}"
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: docker/setup-qemu-action@4574d27a4764455b42196d70a065bc6853246a25 # v3.4.0

.github/workflows/dockerhub.yml

@@ -18,7 +18,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set IMAGE
+        shell: bash
         run: echo "IMAGE=${GITHUB_REPOSITORY#*/docker-}" >> "${GITHUB_ENV}"
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Pull the latest ${{ matrix.platform }} image
+        shell: bash
         run: docker pull --platform "${{ matrix.platform }}" "${GITHUB_REPOSITORY_OWNER}/${IMAGE}"

.github/workflows/trigger-release.yml

@@ -16,10 +16,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set IMAGE
+        shell: bash
         run: echo "IMAGE=${GITHUB_REPOSITORY#*/docker-}" >> "${GITHUB_ENV}"
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Set VERSION
         if: github.ref == 'refs/heads/main'
+        shell: bash
         run: |
           # shellcheck disable=SC2086
           VERSION="$(\grep ${IMAGE}/Dockerfile -e '^FROM' | \head -n 1 | \sed -e 's/@.*$//; s/^.*://;')"