feat: add libwebsockets and Jenkinsfile

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "mosquitto"]
 	path = mosquitto
 	url = https://github.com/eclipse/mosquitto.git
+[submodule "libwebsockets"]
+	path = libwebsockets
+	url = https://github.com/dmikushin/libwebsockets.git

Jenkinsfile

@@ -0,0 +1,103 @@
+def build_moquitto()
+{
+  sh '''
+  set -e
+  DESTDIR="$WORKSPACE/build/$arch/"
+  [ -d "$DESTDIR" ] && rm -rf "$DESTDIR" || true
+  mkdir -p "$DESTDIR"
+  
+  # build libwebsocket first
+  cd $WORKSPACE
+  [ -d libwebsockets/build/ ] && rm -rf libwebsockets/build/ || true
+  mkdir -p libwebsockets/build/
+  cd libwebsockets/build/
+  cmake -DLWS_WITH_EXTERNAL_POLL=ON -DLWS_WITH_STATIC=1 -DLWS_WITH_SHARED=0 ..
+  make
+
+  # now build moquitto
+    cd $WORKSPACE/mosquitto
+    make reallyclean || true
+    make WITH_WEBSOCKETS=yes \
+        WITH_CJSON=no \
+        WITH_SHARED_LIBRARIES=no \
+        WITH_SYSTEMD=no \
+        WITH_DOCS=no \
+        CFLAGS="-I $WORKSPACE/libwebsockets/build/include/" \
+        LDFLAGS="-L $WORKSPACE/libwebsockets/build/lib"
+
+  # install neccessary file
+  mkdir -p "$DESTDIR/opt/www/bin/"
+  mkdir -p "$DESTDIR/opt/www/config/"
+  cp ./src/mosquitto $DESTDIR/opt/www/bin/
+  cp ./apps/mosquitto_passwd/mosquitto_passwd $DESTDIR/opt/www/bin/
+  cp ./mosquitto.conf $DESTDIR/opt/www/config/
+  '''
+
+}
+
+pipeline{
+  agent { node{ label'master' }}
+  options {
+    buildDiscarder(logRotator(numToKeepStr: "1"))
+    // Enable timestamps in build log console
+    timestamps()
+    // Maximum time to run the whole pipeline before canceling it
+    timeout(time: 3, unit: 'HOURS')
+    // Use Jenkins ANSI Color Plugin for log console
+    ansiColor('xterm')
+    // Limit build concurrency to 1 per branch
+    disableConcurrentBuilds()
+  }
+  stages
+  {
+    stage('Build AMD64') {
+      agent {
+          docker {
+              image 'xsangle/ci-tools:bionic-amd64'
+              reuseNode true
+          }
+      }
+      steps {
+        script{
+          env.arch = "amd64"
+        }
+        build_moquitto()
+      }
+    }
+    stage('Build ARM64') {
+      agent {
+          docker {
+              image 'xsangle/ci-tools:bionic-arm64'
+              reuseNode true
+          }
+      }
+      steps {
+        script{
+          env.arch = "arm64"
+        }
+        build_moquitto()
+      }
+    }
+    stage('Build ARM') {
+      agent {
+          docker {
+              image 'xsangle/ci-tools:bionic-arm'
+              reuseNode true
+          }
+      }
+      steps {
+        script{
+          env.arch = "arm"
+        }
+        build_moquitto()
+      }
+    }
+    stage('Archive') {
+      steps {
+        script {
+            archiveArtifacts artifacts: 'build/', fingerprint: true
+        }
+      }
+    }
+  }
+}

libwebsockets

@@ -0,0 +1 @@
+Subproject commit 7e1033671787300277e880d46d64a7ad27f4a09e