Jenkins DSL script to build job from latest Gerrit patchset #jenkins #gerrit

dsl-script-use-latest-patchset.md

Jenkins DSL script to build job from latest Gerrit patchset

Job configuration

Parameters

CHANGE_NUMBER (String)

Prepare an environment for the run

Properties

These properties would be provided to DSL script as default config values

JOB_UI_DIR=Playground/mao
DEFAULT_EMAIL=noone@example.com
REPLY_TO=noone@example.com
SHOULD_SEND_EMAIL=
DEFAULT_BRANCH=ci-debug/001
DEFAULT_TAG=ci-debug/v1.10.1
DEFAULT_HASH=cdac769efe0566e13946d0ed5b8bb50c3c39b3e8

Groovy script

  assert CHANGE_NUMBER

  String branchPrefix = {
      String last2Digits = ("  " + CHANGE_NUMBER)[-2..-1].trim()
      "changes/${last2Digits}/${CHANGE_NUMBER}"
  } ()

  def config = [   
      development: [
          REFSPEC: "+refs/${branchPrefix}/*:refs/remotes/origin/${branchPrefix}/*",
          BRANCH: "${branchPrefix}/1",
      ],
      production: [
          REFSPEC: '+refs/heads/*:refs/remotes/origin/*',
          BRANCH: 'develop',
      ],
  ].get(ENVIRONMENT)

  return config

Source code management

Git

Repositories

Refspec

${REFSPEC}

Branches to build

${BRANCH}

Build

Execute shell

if [ "${ENVIRONMENT}" = development ]
then
    PATCHSET_NUMBER="$(
        git branch -a \
        | 	grep -o "/${CHANGE_NUMBER}/.*" \
        | 	cut  -d/ -f3 \
        | 	sort -nr \
        | 	head -1
    )"
    BRANCH="${BRANCH%%/1}/${PATCHSET_NUMBER}"
    git checkout ${BRANCH}
fi

cat <<EOF >build.properties 
    BRANCH=${BRANCH}
    PATCHSET_NUMBER=${PATCHSET_NUMBER}
EOF

Inject environment variables from file

build.properties

Process Job DSL scripts

Path to your script(s) in Source control