clone the codes by manul

Jenkinsfile

@@ -5,19 +5,30 @@ pipeline {
 
     environment {
         IMAGE_TAG = ""
+        FOLDER = 'src/github.io/jenkins-zh'
     }
 
     stages{
+        stage("clone") {
+            steps {
+                dir(FOLDER) {
+                    checkout scm
+                }
+            }
+        }
+
         stage("build") {
             environment {
                 GOPATH = "${WORKSPACE}"
             }
             steps {
                 container('golang'){
-                    sh '''
-                    CGO_ENABLED=0 GOOS=linux go build -ldflags "-w -s" -a -installsuffix cgo -o bin/wechat-backend
-                    upx bin/wechat-backend
-                    '''
+                    dir(FOLDER) {
+                        sh '''
+                        CGO_ENABLED=0 GOOS=linux go build -ldflags "-w -s" -a -installsuffix cgo -o bin/wechat-backend
+                        upx bin/wechat-backend
+                        '''
+                    }
                 }
             }
         }
@@ -25,11 +36,13 @@ pipeline {
         stage("image") {
             steps {
                 container('golang'){
-                    sh '''
-                    IMAGE_TAG=$(git rev-parse --short HEAD)
-                    docker build -t surenpi/jenkins-wechat:$IMAGE_TAG .
-                    docker push surenpi/jenkins-wechat:$IMAGE_TAG
-                    '''
+                    dir(FOLDER) {
+                        sh '''
+                        IMAGE_TAG=$(git rev-parse --short HEAD)
+                        docker build -t surenpi/jenkins-wechat:$IMAGE_TAG .
+                        docker push surenpi/jenkins-wechat:$IMAGE_TAG
+                        '''
+                    }
                 }
             }
         }