fix workflow

Signed-off-by: jparisu <javierparis@eprosima.com>

Author: jparisu

.github/workflows/pr_test.yml

@@ -1,5 +1,4 @@
 name: pr_test
-description: Check Pull Request
 
 on:
   workflow_dispatch:
@@ -11,4 +10,4 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check wether the versions.md file have been updated
-        uses: eProsima/eProsima-CI/ubuntu/check_version_update@main
+        uses: eProsima/eProsima-CI/ubuntu/check_version_update@feature/versions-update

ubuntu/check_version_update/action.yml

@@ -23,23 +23,24 @@ runs:
   steps:
 
     - name: Sync repository
-      uses: eProsima/eProsima-CI/external/checkout@main
+      uses: eProsima/eProsima-CI/external/checkout@feature/versions-update
       with:
         path: ${{ github.workspace }}
 
     - name: Fetch all branches and tags
-      uses: eProsima/eProsima-CI/ubuntu/git_fetch_all@main
+      uses: eProsima/eProsima-CI/ubuntu/git_fetch_all@feature/versions-update
       with:
         workspace: ${{ github.workspace }}
 
     - name: Get diff file of version file
       id: git-diff
-      uses: eProsima/eProsima-CI/ubuntu/git_diff@main
+      uses: eProsima/eProsima-CI/ubuntu/git_diff@feature/versions-update
       with:
         file-path: ${{ github.workspace }}/${{ inputs.version-file-path }}
 
     - name: Check if file change
       if: ${{ steps.git-diff.outputs.have-changes == 'false' }}
+      shell: bash
       run: |
         echo "Version file ${{ inputs.version-file-path }} has not been updated."
         exit 1

ubuntu/git_diff/action.yml

@@ -10,12 +10,12 @@ inputs:
   head-ref:
     description: Git reference to compare file
     required: false
-    default: ${GITHUB_HEAD_REF}
+    default: origin/${GITHUB_HEAD_REF}
 
   base-ref:
     description: Git reference to compare against
     required: false
-    default: ${GITHUB_BASE_REF}
+    default: origin/${GITHUB_BASE_REF}
 
   diff-args:
     description: Additional arguments to pass to the git diff command
@@ -43,13 +43,12 @@ runs:
       shell: bash
       run: |
 
-        echo "::group::Get git modifications of file ${{ inputs.file-path }}""
+        echo "::group::Get git modifications of file ${{ inputs.file-path }}"
 
-        if git diff --name-only "${{ inputs.base-ref }}" "${{ inputs.head-ref }}" ${{ inputs.diff-args }} | grep -q "${{ inputs.file-path }}"; then
+        git diff "${{ inputs.base-ref }}" "${{ inputs.head-ref }}" ${{ inputs.diff-args }} -- "${{ inputs.file-path }}" > "${{ inputs.result-file }}"
 
-          git diff "${{ inputs.base-ref }}" "${{ inputs.head-ref }}" ${{ inputs.diff-args }} "${{ inputs.file-path }}" > "${{ inputs.result-file }}"
+        if [ -s "${{ inputs.result-file }}" ]; then
 
-          echo "::set-output name=diff-file-result::$(cat ${{ inputs.result-file }})"
           echo "::set-output name=have-changes::true"
 
         else
@@ -58,4 +57,6 @@ runs:
 
         fi
 
+        echo "::set-output name=diff-file-result::$(cat "${{ inputs.result-file }}")"
+
         echo "::endgroup::"