Adds a simple presubmit for istio-testing

JenkinsfileTest

@@ -0,0 +1,54 @@
+#!groovy
+
+// Loading libraries one by one
+node {
+  checkout(scm)
+  def utils = load('src/org/istio/testutils/Utilities.groovy')
+  def gitUtils = load('src/org/istio/testutils/GitUtilities.groovy')
+  def bazel = load('src/org/istio/testutils/Bazel.groovy')
+  def goBuildNode = load('vars/goBuildNode.groovy')
+  def defaultNode = load('vars/defaultNode.groovy')
+  def buildNode = load('vars/buildNode.groovy')
+  def testNode = load('vars/testNode.groovy')
+
+  gitUtils.initialize()
+  bazel.setVars()
+
+  if (utils.runStage('PRESUBMIT')) {
+    def success = true
+    def branches = [
+        'goBuildNode': {
+          goBuildNode(gitUtils, 'istio.io/istio-testing') {
+            echo(env.PATH)
+            echo(env.GOPATH)
+            bazel.version()
+          }
+        },
+        'defaultNode': {
+          defaultNode(gitUtils) {
+            sh('ls -all')
+          }
+        },
+        'buildNode': {
+          buildNode(gitUtils) {
+            sh('ls -all')
+            bazel.version()
+          }
+        },
+        'testNode': {
+          testNode(gitUtils) {
+            sh('ls -all')
+          }
+        }
+    ]
+    utils.updatePullRequest('run')
+    try {
+      parallel(branches)
+    } catch (Exception e) {
+      success = false
+      throw e
+    } finally {
+      utils.updatePullRequest('verify', success)
+    }
+  }
+}

src/org/istio/testutils/Bazel.groovy

@@ -1,15 +1,12 @@
 package org.istio.testutils
 
-import static org.istio.testutils.Utilities.getWithDefault
-
-
 BAZEL_ARGS = ''
 BAZEL_BUILD_ARGS = ''
 
 
 def setVars() {
-  BAZEL_ARGS = getWithDefault(env.BAZEL_ARGS)
-  BAZEL_BUILD_ARGS = getWithDefault(env.BAZEL_BUILD_ARGS)
+  BAZEL_ARGS = env.BAZEL_ARGS
+  BAZEL_BUILD_ARGS = env.BAZEL_BUILD_ARGS
 }
 
 def fetch(args) {
@@ -37,8 +34,14 @@ def test(args) {
   }
 }
 
+def version() {
+  sh('bazel version')
+}
+
 def updateBazelRc(updateBazelrc='.bazelrc.jenkins') {
   if (fileExists(updateBazelrc)) {
     sh("cat ${updateBazelrc} >> .bazelrc")
   }
 }
+
+return this

src/org/istio/testutils/GitUtilities.groovy

@@ -1,7 +1,5 @@
 package org.istio.testutils
 
-import static org.istio.testutils.Utilities.failIfNullOrEmpty
-
 GIT_SHA = ''
 BUCKET = ''
 NOTIFY_LIST = ''
@@ -15,10 +13,9 @@ def initialize() {
 }
 
 def setVars() {
-  BUCKET = failIfNullOrEmpty(env.BUCKET, 'BUCKET env must be set.')
-  DEFAULT_SLAVE_LABEL = failIfNullOrEmpty(
-      env.DEFAULT_SLAVE_LABEL, 'DEFAULT_SLAVE_LABEL env must be set.')
-  NOTIFY_LIST = failIfNullOrEmpty(env.NOTIFY_LIST, 'NOTIFY_LIST env must be set.')
+  BUCKET = env.BUCKET
+  DEFAULT_SLAVE_LABEL = env.DEFAULT_SLAVE_LABEL
+  NOTIFY_LIST = env.NOTIFY_LIST
 }
 
 // In a pipeline, multiple scm checkout might checkout different version of the code.
@@ -37,7 +34,7 @@ def stashSourceCode(postcheckout_call = null) {
     postcheckout_call()
   }
   // Setting source code related global variable once so it can be reused.
-  GIT_SHA = failIfNullOrEmpty(getRevision(), 'Could not find revision')
+  GIT_SHA = getRevision()
   echo('Stashing source code')
   fastStash('src-code', '.')
 }
@@ -101,4 +98,6 @@ Find <a href='${url}'>artifacts</a> here
 def getRevision() {
   // Code needs to be checked out for this.
   return sh(returnStdout: true, script: 'git rev-parse --verify HEAD').trim()
-}
+}
+
+return this

src/org/istio/testutils/Utilities.groovy

@@ -87,3 +87,5 @@ static def filterBranches(branches, regex) {
   }
   return filteredBranches
 }
+
+return this

vars/buildNode.groovy

@@ -2,14 +2,16 @@
 Creates a node with the right label and checkout the source code.
 */
 
-import org.istio.testutils.Utilities
-
 def call(gitUtils, Closure body) {
-  utils = new Utilities()
-  def nodeLabel = utils.getParam('SLAVE_LABEL', gitUtils.DEFAULT_SLAVE_LABEL)
+  def nodeLabel = params.get('SLAVE_LABEL')
+  if (nodeLabel == null) {
+    nodeLabel = gitUtils.DEFAULT_SLAVE_LABEL
+  }
   def buildNodeLabel = "${nodeLabel}-build"
   node(buildNodeLabel) {
     gitUtils.checkoutSourceCode()
     body()
   }
-}
+}
+
+return this

vars/defaultNode.groovy

@@ -2,13 +2,15 @@
 Creates a node with the right label and checkout the source code.
 */
 
-import org.istio.testutils.Utilities
-
 def call(gitUtils, Closure body) {
-  utils = new Utilities()
-  def nodeLabel = utils.getParam('SLAVE_LABEL', gitUtils.DEFAULT_SLAVE_LABEL)
+  def nodeLabel = params.get('SLAVE_LABEL')
+  if (nodeLabel == null) {
+    nodeLabel = gitUtils.DEFAULT_SLAVE_LABEL
+  }
   node(nodeLabel) {
     gitUtils.checkoutSourceCode()
     body()
   }
-}
+}
+
+return this

vars/goBuildNode.groovy

@@ -2,12 +2,11 @@
 Creates a node with the right label and checkout the source code.
 */
 
-import org.istio.testutils.Utilities
-
-
 def call(gitUtils, goImportPath, Closure body) {
-  utils = new Utilities()
-  def nodeLabel = utils.getParam('SLAVE_LABEL', gitUtils.DEFAULT_SLAVE_LABEL)
+  def nodeLabel = params.get('SLAVE_LABEL')
+  if (nodeLabel == null) {
+    nodeLabel = gitUtils.DEFAULT_SLAVE_LABEL
+  }
   def buildNodeLabel = "${nodeLabel}-build"
   node(buildNodeLabel) {
     def goPath = env.WORKSPACE
@@ -22,3 +21,5 @@ def call(gitUtils, goImportPath, Closure body) {
     }
   }
 }
+
+return this

vars/testNode.groovy

@@ -2,14 +2,16 @@
 Creates a node with the right label and checkout the source code.
 */
 
-import org.istio.testutils.Utilities
-
 def call(gitUtils, Closure body) {
-  utils = new Utilities()
-  def nodeLabel = utils.getParam('SLAVE_LABEL', gitUtils.DEFAULT_SLAVE_LABEL)
+  def nodeLabel = params.get('SLAVE_LABEL')
+  if (nodeLabel == null) {
+    nodeLabel = gitUtils.DEFAULT_SLAVE_LABEL
+  }
   def testNodeLabel = "${nodeLabel}-test"
   node(testNodeLabel) {
     gitUtils.checkoutSourceCode()
     body()
   }
-}
+}
+
+return this