Include pylint into Jenkinsfile

Change-Id: Ica10d5aeba78f1f605965d688f7f41287f0b1c46
Reviewed-on: https://forge.frm2.tum.de/review/19555
Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>

ci/Jenkinsfile

@@ -25,9 +25,74 @@ change-merged''',
 
 
 this.verifyresult = [:]
+def changedFiles = '';
 
-def run_tests(pyver)
-{
+
+def run_pylint(pyver) {
+    def status = 'OK'
+    changedFiles = sh returnStdout: true, script: '''\
+#!/bin/bash
+git diff HEAD~1... --name-only --diff-filter=ARCM -- \\*.py
+'''
+    changedFiles = changedFiles.replaceAll("[\r\n]", " ").trim()
+
+    res = sh returnStatus: true, script: """\
+#!/bin/bash -x
+. /home/jenkins/secopvenv/bin/activate
+pip install -r requirements-dev.txt
+pip install -r requirements.txt
+pip install isort pylint
+python setup.py develop
+export PYTHONIOENCODING=utf8
+
+echo "$changedFiles"
+if [[  -n "$changedFiles" ]]; then
+   set -o pipefail
+   pylint $changedFiles | tee pylint_results.txt
+   isort -df $changedFiles | tee isort_results.txt
+fi
+"""
+    withCredentials([string(credentialsId: 'GERRITHTTP',
+                     variable: 'GERRITHTTP')]) {
+        sh '''\
+        #!/bin/bash
+          /home/jenkins/tools2/bin/pylint2gerrit
+        '''
+    } // credentials
+
+    echo "pylint result: $res"
+
+    if ( res != 0 ) {
+        currentBuild.result='FAILURE'
+        this.verifyresult.put('pylint'+ pyver, -1)
+        status = 'FAILURE'
+    }
+    gerritverificationpublisher([
+        verifyStatusValue: this.verifyresult['pylint'+pyver],
+        verifyStatusCategory: 'pylint ',
+        verifyStatusName: 'pylint-'+pyver,
+        verifyStatusReporter: 'jenkins',
+        verifyStatusRerun: '!recheck'])
+    warnings([ canComputeNew: false,
+                canRunOnFailed: true,
+                defaultEncoding: '',
+                excludePattern: '',
+                healthy: '',
+                includePattern: '',
+                messagesPattern: '',
+                parserConfigurations: [[parserName: 'PyLint', pattern: 'pylint_*.txt']],
+                unHealthy: '',
+                failedTotalAll: '0',
+                unstableTotalAll: '1'
+                ])
+    if (status == 'FAILURE') {
+        throw new Exception('Failure in pylint with ' + pyver)
+  }
+} // run_pylint
+
+
+def run_tests(pyver) {
+    stage('Test:' + pyver) {
        writeFile file: 'setup.cfg', text: '''
 [tool:pytest]
 addopts = --junit-xml=pytest.xml --junit-prefix=''' + pyver
@@ -63,6 +128,7 @@ make test
     if (status == 'FAILURE') {
         throw new Exception('Failure in test with ' + pyver)
     }
+  }
 }
 
 def run_docs() {
@@ -74,6 +140,7 @@ def run_docs() {
         python setup.py develop
         '''
     }
+
     stage('check links') {
         sh '''
         . /home/jenkins/secopvenv/bin/activate
@@ -81,30 +148,35 @@ def run_docs() {
         make -C doc linkcheck
         '''
     }
+
     stage('build html') {
         sh '''
         . /home/jenkins/secopvenv/bin/activate
         make -C doc html
         '''
     }
+
     stage('build singlehtml') {
         sh '''
         . /home/jenkins/secopvenv/bin/activate
         make -C doc singlehtml
         '''
     }
+
     stage('build latexpdf') {
         sh '''
         . /home/jenkins/secopvenv/bin/activate
         make -C doc latexpdf
         '''
     }
+
     stage('build man') {
         sh '''
         . /home/jenkins/secopvenv/bin/activate
         make -C doc man
         '''
     }
+
     stage('store html doc for build') {
         publishHTML([allowMissing: false, alwaysLinkToLastBuild: false, keepAll: true, reportDir: 'doc/_build/html', reportFiles: 'index.html', reportName: 'Built documentation', reportTitles: ''])
         gerritverificationpublisher([
@@ -168,6 +240,11 @@ node("master") {
         img = docker.image('secop_base:latest')
         img.inside {
             run_tests('python2')
+        }},
+            'Pylint': {
+        img = docker.image('secop_base:latest')
+        img.inside {
+            run_pylint('python2')
         }},
             'Docs': {
         img = docker.image('secop_docs:latest')