How to get environment variable in Jenkins email notification?

Question

In Jenkins job configuration I have written a bat script in the command window of build section. In one of the script commands I set an environment variable as a system environment variable in the server machine as so:

setx Analysis_URL "http://analysis_url/analysis/%analysis_id%.html

My task now is to get this environment variable value back to Jenkins and include it in my post build notification email content. Is there a simple way to do it ?

In my research I have come across the plugin envInject but I think it is used for setting environment variables, is that right ?

UPDATE 1 :

It turned out that the variable could be accessed by a simple $Analysis_URL in the email content, however, that raised another issue as my environment variable changes its value after each job build, but as Jenkins only takes a copy of the system environment variables I keep getting the same variable value after each build in my email content, it only changes after restarting Jenkins. Is there a way to get the updated system environment variables to Jenkins ?

UPDATE 2 :

EnvInject plugin did the job I wanted. These are the steps that I performed:

1. Build step "batch command window": added command :

echo ANALYSIS_URL=$ANALYSIS_URL > my.properties

2. Build step "Inject environment variables": in field "Properies File Path"

$WORKSPACE/my.properties

3. Post-Build Actions: "Editable Email Notification", Field "Default Content":

Current analysis url: $ANALYSIS_URL

Answer 1

You can use environment variables and global variables inside script with sh. For example:

pipeline {
  environment {
    APP_VERSION = "1.2.1"
  }
  post {
    success {
      script {
        sh "sed -i 's#%BUILD_URL#$BUILD_URL#g' .jenkins/email.html"
        sh "sed -i 's#%APP_VERSION#${APP_VERSION}#g' .jenkins/email.html"
        emailext attachLog: true, mimeType: 'text/html', body: '${FILE, path=".jenkins/email.html"}', subject: '[$BUILD_STATUS] $PROJECT_NAME', to: 'youremail@mail.com'
      }
    }
  }
}

But the secret is here:

• ' single quote parses global variables like $BUILD_STATUS $BUILD_URL ...
• " double quote parses env variables like ${APP_VERSION}

So, you can use:

subject: '$BUILD_STATUS'

or

subject: "${APP_VERSION}"

Final solution

Transform all global variables you need to environment variables:

pipeline {
  environment {
    APP_VERSION = "1.2.1"
  }
  post {
    success {
      script {
        BUILD_STATUS = '$BUILD_STATUS'
        PROJECT_NAME = '$PROJECT_NAME'
        sh "sed -i 's#%BUILD_URL#$BUILD_URL#g' .jenkins/email.html"
        sh "sed -i 's#%APP_VERSION#${APP_VERSION}#g' .jenkins/email.html"
        emailext attachLog: true, mimeType: 'text/html', body: '${FILE, path=".jenkins/email.html"}', subject: "${BUILD_STATUS} ${PROJECT_NAME} ${APP_VERSION}", to: 'youremail@mail.com'
      }
    }
  }
}

Answer 2

Printing Variables in Post Build Email:

1. Add this to build: execute shell section:

echo count=$count > count.txt
echo distinctcount=$distinctcount > distinctcount.txt

2. Add this to Inject Environmental Variables section under "Properties File Path":

${WORKSPACE}/count.txt

and do the same also for the second file ${WORKSPACE}/distinctcount.txt (as I have two variables)

Note 1: ${WORKSPACE} is pwd for jenkins and lists the location)

Note 2: You can actually put both variables in just one file by using echo distinctcount=$distinctcount >> count.txt

3. Call the variable in the "default content" section of "editable email notification":

Count total:$count Distinct Count: $distinctcount

NOTE Be sure you have email setup as "always" under "advanced settings" at the bottom of the email settings, otherwise it only emails upon first success or any failure:

Answer 3

You can just use: ${yourDefinedVriableName}

Answer 4

Have you tried the env.Analysis_URL to access to your environment variable ?