Coverage only runs runs when meaningful files are changed (#468)

* test paths-filter

* test filter

* test workflow filter

* test filter changes

* fixed path

* modulate fitler & reverse my tests from earlier

* reverse order of file-filter

* test filter

* test2

* fixed filter stop

* reverted test

* fixed skip test when should run

* fixed skip test when should run 2

* fixed ski[ test when should run 4

* fixed skip test when should run 3?

* revert cmake

Author: okBrian

.github/file-filter.yml

@@ -0,0 +1,33 @@
+# This is used by the action https://github.com/dorny/paths-filter
+# Lists all files to be filtered for changes to run a CI for test.yml & coverage.yml
+
+fortran_src: &fortran_src
+  - '**/*.f90'
+  - '**/*.fpp'
+
+python_src: &python_src
+  - '**/*.py'
+  - 'toolchain/requirements.txt'
+
+cmakelist: &cmakelist
+  - 'CMakeLists.txt'
+  - 'toolchain/cmake/**'
+
+tests: &tests
+  - 'tests/**'
+
+scripts: &scripts
+  - 'mfc.sh'
+  - 'mfc.bat'
+  - 'toolchain/bootstrap/**'
+
+yml: &yml
+  - '**/*.yml'
+
+checkall: &checkall
+  - *fortran_src
+  - *python_src
+  - *cmakelist
+  - *tests
+  - *scripts
+  - *yml

.github/workflows/coverage.yml

@@ -3,18 +3,36 @@ name: Coverage Check
 on: [push, pull_request, workflow_dispatch]
 
 jobs:
+  file-changes:
+    name: Detect File Changes
+    runs-on: 'ubuntu-latest'
+    outputs: 
+      checkall: ${{ steps.changes.outputs.checkall }}
+    steps:
+      - name: Clone
+        uses: actions/checkout@v4
+
+      - name: Detect Changes
+        uses: dorny/paths-filter@v3
+        id: changes
+        with: 
+          filters: ".github/file-filter.yml"
+
   run:
     name: Coverage Test on CodeCov
+    if: needs.file-changes.outputs.checkall == 'true'
+    needs: file-changes
     runs-on: "ubuntu-latest"
     steps:
+      - name: Checkouts
+        uses: actions/checkout@v4
+
       - name: Setup Ubuntu
         run: |
             sudo apt update -y
             sudo apt install -y tar wget make cmake gcc g++ python3 python3-dev "openmpi-*" libopenmpi-dev
-          
-      - name: Checkouts
-        uses: actions/checkout@v4
-        
+            
+      
       - name: Build
         run: /bin/bash mfc.sh build -j $(nproc) --gcov
 

.github/workflows/test.yml

@@ -17,8 +17,25 @@ on:
   workflow_dispatch:
 
 jobs:
+  file-changes:
+    name: Detect File Changes
+    runs-on: 'ubuntu-latest'
+    outputs: 
+      checkall: ${{ steps.changes.outputs.checkall }}
+    steps:
+      - name: Clone
+        uses: actions/checkout@v4
+
+      - name: Detect Changes
+        uses: dorny/paths-filter@v3
+        id: changes
+        with: 
+          filters: ".github/file-filter.yml"
+
   github:
     name: Github
+    if: needs.file-changes.outputs.checkall == 'true'
+    needs: file-changes
     strategy:
       matrix:
         os:    ['ubuntu', 'macos']
@@ -38,6 +55,7 @@ jobs:
       fail-fast: false
     continue-on-error: true
     runs-on: ${{ matrix.os }}-latest
+
     steps:
       - name: Clone
         uses: actions/checkout@v4
@@ -96,7 +114,9 @@ jobs:
           OPT2: ${{ matrix.debug == 'debug' && '-% 20' || '' }}
 
   docker:
-    name:    Github | Docker
+    name: Github | Docker
+    if: needs.file-changes.outputs.checkall == 'true'
+    needs: file-changes
     runs-on: ubuntu-latest
     steps:
     - name: Clone
@@ -107,7 +127,8 @@ jobs:
 
   self:
     name: Self Hosted
-    if: github.repository == 'MFlowCode/MFC'
+    if: github.repository == 'MFlowCode/MFC' && needs.file-changes.outputs.checkall == 'true'
+    needs: file-changes
     continue-on-error: true
     strategy:
       matrix: