Create virtualenv for python

Create virtualenv for python

everytime jenkins call a sh command, a new enviroment will be setup. Therefore virtual enviroment has to be activated everytime. Or make a .bashrc

node {
    stage 'Preparing VirtualEnv'
    if (!fileExists('.env')){
        echo 'Creating virtualenv ...'
        sh 'virtualenv --no-site-packages .env'
    }
    if (fileExists('requirements/preinstall.txt')) {
    sh """
    . .env/bin/activate
    pip install -r requirements/preinstall.txt
    """
    }
    ...
    sh """
    . .env/bin/activate
    pip install -r requirements/test.txt
    """
    }
    stage("Unittests") {
        sh """
        . .env/bin/activate
        ./manage.py test --noinput
        """
    }
}

or run it in one shell

sh """
. .env/bin/activate
if [[ -f requirements/preinstall.txt ]]; then
    pip install -r requirements/preinstall.txt
fi
pip install -r requirements/test.txt
./manage.py test --noinput
"""

or run a shell script

bash script

#!/usr/bin/env bash

CURRENT_DIR=$(dirname $(readlink -f $0))


/usr/bin/python3 -m venv venv

source "${CURRENT_DIR}/venv/bin/activate"

pip install -r requirements.txt

RESULT=$?

if [[ ${RESULT} -eq 0 ]]; then
  printf "virtual env created successfully\n"
  pytest -v -o junit_family=xunit1  --cov-report xml:test/coverage.xml --junitxml=test/results.xml
else
  printf "could not start virtual env\n"
fi

Jenkins create a folder when it make a clone from your project like this:

/var/lib/jenkins/workspace/job-name@script

For this to work you must set the file as executable if you are in a linux environment and then call the shell script.

Something like this:

// Permission to execute
sh "chmod +x -R ${env.WORKSPACE}/../${env.JOB_NAME}@script"

// Call SH
sh "${env.WORKSPACE}/../${env.JOB_NAME}@script/script.sh"

or

dir ('<your new directory>') { 
    sh('./build.sh')
}