add retry build.

.github/workflows/ccpp.yml

@@ -9,27 +9,52 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
     
     steps:
-    - uses: actions/checkout@v4
-    - name: Setup build directory
-      run: mkdir buildproducts
+      - uses: actions/checkout@v4
       
-    - name: CMake
-      working-directory: ./buildproducts
-      run: cmake ..
+      - name: Setup build directory
+        run: mkdir buildproducts
       
-    - name: Make
-      working-directory: ./buildproducts
-      run: make
+      - name: CMake
+        working-directory: ./buildproducts
+        run: |
+          retry=0
+          max_retries=3
+          until cmake ..; do
+            retry=$((retry+1))
+            echo "Retry $retry/$max_retries..."
+            if [ "$retry" -ge "$max_retries" ]; then
+              echo "CMake configuration failed after $max_retries attempts."
+              exit 1
+            fi
+            sleep 10
+          done
       
-    - name: Copy header files to build directory
-      run: |
-        cp include/epanet2.h buildproducts/
-        cp include/epanet2_2.h buildproducts/
-        cp include/epanet2_enums.h buildproducts/
+      - name: Make
+        working-directory: ./buildproducts
+        run: |
+          retry=0
+          max_retries=3
+          until make; do
+            retry=$((retry+1))
+            echo "Retry $retry/$max_retries..."
+            if [ "$retry" -ge "$max_retries" ]; then
+              echo "Make build failed after $max_retries attempts."
+              exit 1
+            fi
+            sleep 10
+          done
       
-    - uses: actions/upload-artifact@v4
-      with:
-        name: libepanet-output
-        path: buildproducts/
+      - name: Copy header files to build directory
+        run: |
+          cp include/epanet2.h buildproducts/
+          cp include/epanet2_2.h buildproducts/
+          cp include/epanet2_enums.h buildproducts/
+          
+      - uses: actions/upload-artifact@v4
+        with:
+          name: libepanet-output
+          path: buildproducts/

.github/workflows/macos.yml

@@ -9,19 +9,44 @@ on:
 jobs:
   build:
     runs-on: macos-latest
+    strategy:
+      fail-fast: false
     
     steps:
     - uses: actions/checkout@v4
+
     - name: Setup build directory
       run: mkdir buildproducts
 
     - name: CMake
       working-directory: ./buildproducts
-      run: cmake ..
+      run: |
+        retry=0
+        max_retries=3
+        until cmake ..; do
+          ((retry++))
+          echo "Retry $retry/$max_retries..."
+          if [ "$retry" -ge "$max_retries" ]; then
+            echo "CMake configuration failed after $max_retries attempts."
+            exit 1
+          fi
+          sleep 10
+        done
 
     - name: Make
       working-directory: ./buildproducts
-      run: make
+      run: |
+        retry=0
+        max_retries=3
+        until make; do
+          ((retry++))
+          echo "Retry $retry/$max_retries..."
+          if [ "$retry" -ge "$max_retries" ]; then
+            echo "Make build failed after $max_retries attempts."
+            exit 1
+          fi
+          sleep 10
+        done
 
     - name: Copy header files to build directory
       run: |

.github/workflows/win32.yml

@@ -9,6 +9,8 @@ on:
 jobs:
   build:
     runs-on: windows-latest
+    strategy:
+      fail-fast: false
 
     steps:
       - name: Checkout repository
@@ -19,7 +21,21 @@ jobs:
         
       - name: CMake
         working-directory: ./buildproducts
-        run: cmake .. -A Win32 && cmake --build . --config Release
+        shell: pwsh
+        run: |
+          $retryCount = 0
+          $maxRetries = 3
+          do {
+            cmake .. -A Win32 && cmake --build . --config Release
+            if ($LASTEXITCODE -eq 0) { break }
+            Write-Host "Retry $($retryCount + 1)/$maxRetries..."
+            Start-Sleep -Seconds 10
+            $retryCount++
+          } while ($retryCount -lt $maxRetries)
+          if ($retryCount -eq $maxRetries) {
+            Write-Host "CMake build failed after $maxRetries attempts."
+            exit 1
+          }
 
       - name: Copy header files to build directory
         run: |

.github/workflows/win64.yml

@@ -9,6 +9,8 @@ on:
 jobs:
   build:
     runs-on: windows-latest
+    strategy:
+      fail-fast: false
 
     steps:
       - name: Checkout repository
@@ -19,7 +21,22 @@ jobs:
         
       - name: CMake
         working-directory: ./buildproducts
-        run: cmake .. -A x64 && cmake --build . --config Release
+        shell: pwsh
+        run: |
+          $retryCount = 0
+          $maxRetries = 3
+          do {
+            cmake .. -A x64  # Specify architecture for 64-bit
+            cmake --build . --config Release
+            if ($LASTEXITCODE -eq 0) { break }
+            Write-Host "Retry $($retryCount + 1)/$maxRetries..."
+            Start-Sleep -Seconds 10
+            $retryCount++
+          } while ($retryCount -lt $maxRetries)
+          if ($retryCount -eq $maxRetries) {
+            Write-Host "CMake build failed after $maxRetries attempts."
+            exit 1
+          }
 
       - name: Copy header files to build directory
         run: |