[CI] some more improvement towards selective compilation

.github/workflows/ci.yml

@@ -69,6 +69,10 @@ jobs:
     # - name: Installing dependencies
     # => must be added to the docker container to avoid reinstalling it in every CI run
 
+    - name: CI configuration
+      shell: bash
+      run: python3 kratos/python_scripts/testing/ci_utilities.py
+
     - name: Build
       shell: bash
       run: |
@@ -172,6 +176,10 @@ jobs:
       with:
         python-version: '3.8'
 
+    - name: CI configuration
+      shell: bash
+      run: python3 kratos/python_scripts/testing/ci_utilities.py
+
     - name: Download boost
       run: |
         $url = "https://boostorg.jfrog.io/artifactory/main/release/1.74.0/source/boost_1_74_0.tar.gz"
@@ -204,8 +212,11 @@ jobs:
 
   centos:
     runs-on: ubuntu-latest
+    needs: changed-files
     env:
       KRATOS_BUILD_TYPE: Custom
+      KRATOS_CI_CHANGED_FILES: ${{needs.changed-files.outputs.files}}
+      KRATOS_CI_APPLICATIONS: ".github/workflows/ci_apps_centos.json"
 
     container:
       image: kratosmultiphysics/kratos-image-ci-centos7:latest
@@ -217,6 +228,10 @@ jobs:
     # - name: Installing dependencies
     # => must be added to the docker container to avoid reinstalling it in every CI run
 
+    - name: CI configuration
+      shell: bash
+      run: python3.8 kratos/python_scripts/testing/ci_utilities.py
+
     - name: Build
       run: |
         export KRATOS_CMAKE_CXX_FLAGS="-Werror -Wno-deprecated-declarations -Wignored-qualifiers"
@@ -232,8 +247,11 @@ jobs:
 
   ubuntu-core-without-unity:
     runs-on: ubuntu-latest
+    needs: changed-files
     env:
       KRATOS_BUILD_TYPE: Custom
+      KRATOS_CI_CHANGED_FILES: ${{needs.changed-files.outputs.files}}
+      KRATOS_CI_APPLICATIONS: "ONLY_CORE"
       OMPI_MCA_rmaps_base_oversubscribe: 1 # Allow oversubscription for MPI (needed for OpenMPI >= 3.0)
 
     container:
@@ -249,6 +267,10 @@ jobs:
     steps:
     - uses: actions/checkout@v4
 
+    - name: CI configuration
+      shell: bash
+      run: python3 kratos/python_scripts/testing/ci_utilities.py
+
     - name: Cache Build
       id: cache-build
       uses: actions/cache@v3
@@ -354,15 +376,22 @@ jobs:
 
   windows-core-without-unity:
     runs-on: windows-2022
+    needs: changed-files
     env:
       KRATOS_BUILD_TYPE: Custom
+      KRATOS_CI_CHANGED_FILES: ${{needs.changed-files.outputs.files}}
+      KRATOS_CI_APPLICATIONS: "ONLY_CORE"
 
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
       with:
         python-version: '3.8'
 
+    - name: CI configuration
+      shell: bash
+      run: python3 kratos/python_scripts/testing/ci_utilities.py
+
     - name: Download boost
       run: |
         $url = "https://boostorg.jfrog.io/artifactory/main/release/1.74.0/source/boost_1_74_0.tar.gz"
@@ -515,8 +544,11 @@ jobs:
 
   ubuntu-intel:
     runs-on: ubuntu-latest
+    needs: changed-files
     env:
       KRATOS_BUILD_TYPE: Custom
+      KRATOS_CI_CHANGED_FILES: ${{needs.changed-files.outputs.files}}
+      KRATOS_CI_APPLICATIONS: ".github/workflows/ci_apps_intel.json"
       OMPI_MCA_rmaps_base_oversubscribe: 1 # Allow oversubscription for MPI (needed for OpenMPI >= 3.0)
       OMPI_MCA_btl_vader_single_copy_mechanism: none # suppressing some annoying OpenMPI messages
 
@@ -530,6 +562,10 @@ jobs:
     # - name: Installing dependencies
     # => must be added to the docker container to avoid reinstalling it in every CI run
 
+    - name: CI configuration
+      shell: bash
+      run: python3 kratos/python_scripts/testing/ci_utilities.py
+
     - name: Build
       shell: bash
       run: |

.github/workflows/ci_apps_centos.json

@@ -0,0 +1,9 @@
+[
+    "FluidDynamicsApplication",
+    "MappingApplication",
+    "StructuralMechanicsApplication",
+    "MeshingApplication",
+    "LinearSolversApplication",
+    "ConstitutiveLawsApplication",
+    "CoSimulationApplication"
+]

.github/workflows/ci_apps_intel.json

@@ -0,0 +1 @@
+[]

kratos/python_scripts/testing/ci_utilities.py

@@ -10,10 +10,15 @@ def check_valid_environment_configuration_exists() -> None:
     if not getenv("KRATOS_CI_CHANGED_FILES"):
         raise RuntimeError("Invalid CI-environment: KRATOS_CI_CHANGED_FILES")
 
-    if not getenv("KRATOS_CI_APPLICATIONS"):
+    kratos_ci_applications: Optional[str] = getenv("KRATOS_CI_APPLICATIONS")
+
+    if kratos_ci_applications == "ONLY_CORE":
+        return
+
+    if kratos_ci_applications is None:
         raise RuntimeError("Invalid CI-environment: KRATOS_CI_APPLICATIONS")
 
-    if not Path(getenv("KRATOS_CI_APPLICATIONS")).exists():
+    if not Path(kratos_ci_applications).exists():
         raise RuntimeError("Invalid CI-environment: KRATOS_CI_APPLICATIONS file does not exist")
 
 
@@ -25,7 +30,13 @@ def changed_files() -> List[Path]:
 
 def ci_applications() -> List[str]:
     check_valid_environment_configuration_exists()
-    with open(getenv("KRATOS_CI_APPLICATIONS")) as ci_apps_file:
+
+    kratos_ci_applications: str = getenv("KRATOS_CI_APPLICATIONS")
+
+    if kratos_ci_applications == "ONLY_CORE":
+        return []
+
+    with open(kratos_ci_applications) as ci_apps_file:
         return json.load(ci_apps_file)
 
 
@@ -51,13 +62,13 @@ def are_only_python_files_changed() -> bool:
 
 def print_ci_information() -> None:
     """This function prints an overview of the CI related information"""
-    pprint(f"{sorted(changed_files())=}")
-    pprint(f"{ci_applications()=}")
-    print(f"{get_changed_files_extensions()=}")
+    pprint(sorted(map(lambda p : p.as_posix(), changed_files())))
+    pprint(sorted(ci_applications()))
+    print(f"{sorted(get_changed_files_extensions())=}")
     print(f"{are_only_python_files_changed()=}")
-    print(f"{get_changed_applications()=}")
+    print(f"{sorted(get_changed_applications())=}")
     print(f"{is_core_changed()=}")
-    print(f"{is_mpi_core_changed()=}")
+    print(f"{is_mpi_core_changed()=}\n")
 
 
 if __name__ == "__main__":