Revert "ci(jenkins): delegate docker setup to the preCommit step" (#559)

Author: v1v

.ci/Jenkinsfile

@@ -47,17 +47,21 @@ pipeline {
         stage('Sanity checks') {
           when {
             beforeAgent true
-            not {
-              changeRequest()
+            anyOf {
+              not { changeRequest() }
+              expression { return params.Run_As_Master_Branch }
             }
           }
           steps {
             withGithubNotify(context: 'Sanity checks', tab: 'tests') {
               deleteDir()
               unstash 'source'
               script {
-                dir(BASE_DIR){
-                  preCommit(commit: "${GIT_BASE_COMMIT}", junit: true, dockerImage: 'python:3.7-stretch')
+                docker.image('python:3.7-stretch').inside("-e PATH=${PATH}:${env.WORKSPACE}/bin"){
+                  dir("${BASE_DIR}"){
+                    // registry: '' will help to disable the docker login
+                    preCommit(commit: "${GIT_BASE_COMMIT}", junit: true, registry: '')
+                  }
                 }
               }
             }

.ci/linting.groovy

@@ -25,7 +25,10 @@ pipeline {
       steps {
         script {
           def sha = getGitCommitSha()
-          preCommit(commit: "${sha}", junit: true, dockerImage: 'python:3.7-stretch')
+          docker.image('python:3.7-stretch').inside("-e PATH=${PATH}:${env.WORKSPACE}/bin"){
+            // registry: '' will help to disable the docker login
+            preCommit(commit: "${sha}", junit: true, registry: '')
+          }
         }
       }
     }

Jenkinsfile

@@ -61,17 +61,21 @@ pipeline {
         stage('Sanity checks') {
           when {
             beforeAgent true
-            not {
-              changeRequest()
+            anyOf {
+              not { changeRequest() }
+              expression { return params.Run_As_Master_Branch }
             }
           }
           steps {
             withGithubNotify(context: 'Sanity checks', tab: 'tests') {
               deleteDir()
               unstash 'source'
               script {
-                dir(BASE_DIR){
-                  preCommit(commit: "${GIT_BASE_COMMIT}", junit: true, dockerImage: 'python:3.7-stretch')
+                docker.image('python:3.7-stretch').inside("-e PATH=${PATH}:${env.WORKSPACE}/bin"){
+                  dir("${BASE_DIR}"){
+                    // registry: '' will help to disable the docker login
+                    preCommit(commit: "${GIT_BASE_COMMIT}", junit: true, registry: '')
+                  }
                 }
               }
             }