Add parallel build GitHub Actions workflow with build status badge (#10)

Author: darbyluv2code

.github/workflows/build.yml

@@ -0,0 +1,87 @@
+name: Build
+
+on:
+  push:
+    branches: [ main, master ]
+
+jobs:
+  build-02-creational:
+    name: "Section 02: Creational Design Patterns (5 projects)"
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up JDK 25
+      uses: actions/setup-java@v4
+      with:
+        java-version: '25'
+        distribution: 'temurin'
+        cache: 'maven'
+
+    - name: Build all projects in section
+      run: |
+        set -e
+        echo "Building Section 02: Creational Design Patterns"
+        find section-02-creational-design-patterns -name pom.xml -not -path "*/target/*" | sort | while read pom; do
+          echo "Building $(dirname $pom)"
+          mvn clean compile -B -q -f "$pom" || {
+            echo "Failed to compile $pom"
+            exit 1
+          }
+        done
+        echo "Section 02 completed successfully"
+
+  build-03-structural:
+    name: "Section 03: Structural Design Patterns (5 projects)"
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up JDK 25
+      uses: actions/setup-java@v4
+      with:
+        java-version: '25'
+        distribution: 'temurin'
+        cache: 'maven'
+
+    - name: Build all projects in section
+      run: |
+        set -e
+        echo "Building Section 03: Structural Design Patterns"
+        find section-03-structural-design-patterns -name pom.xml -not -path "*/target/*" | sort | while read pom; do
+          echo "Building $(dirname $pom)"
+          mvn clean compile -B -q -f "$pom" || {
+            echo "Failed to compile $pom"
+            exit 1
+          }
+        done
+        echo "Section 03 completed successfully"
+
+  build-04-behavioral:
+    name: "Section 04: Behavioral Design Patterns (11 projects)"
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up JDK 25
+      uses: actions/setup-java@v4
+      with:
+        java-version: '25'
+        distribution: 'temurin'
+        cache: 'maven'
+
+    - name: Build all projects in section
+      run: |
+        set -e
+        echo "Building Section 04: Behavioral Design Patterns"
+        find section-04-behavioral-design-patterns -name pom.xml -not -path "*/target/*" | sort | while read pom; do
+          echo "Building $(dirname $pom)"
+          mvn clean compile -B -q -f "$pom" || {
+            echo "Failed to compile $pom"
+            exit 1
+          }
+        done
+        echo "Section 04 completed successfully"

README.md

@@ -1,5 +1,7 @@
 # Master Java Design Patterns
 
+![Build Status](https://github.com/darbyluv2code/master-java-design-patterns/actions/workflows/build.yml/badge.svg)
+
 Source code for the course: [Master Java Design Patterns](https://www.luv2code.com/master-java-design-patterns-github)
 
 If you have questions or need tech support, post your questions to the [classroom discussion forum](https://www.luv2code.com/master-java-design-patterns-github).