Jenkins sending email on post build (#5651)

* Jenkins sending email on post build
Signed-off-by: Nquicksilver <zhifeng.zhang@zilliz.com>

* Jenkins sending email on post build
Signed-off-by: Nquicksilver <zhifeng.zhang@zilliz.com>

* Jenkins sending email on post build
Signed-off-by: Nquicksilver <zhifeng.zhang@zilliz.com>

* Jenkins sending email on post build
Signed-off-by: Nquicksilver <zhifeng.zhang@zilliz.com>

* Jenkins sending email on post build
Signed-off-by: Nquicksilver <zhifeng.zhang@zilliz.com>

build/ci/jenkins/Jenkinsfile

@@ -54,6 +54,18 @@ pipeline {
                     }
                 }
                 post {
+                    unsuccessful {
+                        container('jnlp') {
+                            script {
+                                def authorEmail = sh returnStdout: true, script: 'git --no-pager show -s --format=\'%ae\' HEAD~1'
+                                emailext subject: '$DEFAULT_SUBJECT',
+                                body: '$DEFAULT_CONTENT',
+                                recipientProviders: [developers(), culprits()],
+                                replyTo: '$DEFAULT_REPLYTO',
+                                to: "${authorEmail}"
+                            }
+                        }
+                    }
                     always {
                         container('main') {
                             script {

build/ci/jenkins/NightlyCI.groovy

@@ -69,10 +69,7 @@ pipeline {
                             script {
                                 emailext subject: '$DEFAULT_SUBJECT',
                                 body: '$DEFAULT_CONTENT',
-                                recipientProviders: [
-                                    [$class: 'DevelopersRecipientProvider'],
-                                    [$class: 'RequesterRecipientProvider']
-                                ],
+                                recipientProviders: [requestor()],
                                 replyTo: '$DEFAULT_REPLYTO',
                                 to: 'qa@zilliz.com'
                             }