warning: here-document at line 2 delimited by end-of-file (wanted `EOF')

Question

I've read a lot here and then but still cannot find how to fix this:

steps.wrap([$class: 'AnsiColorBuildWrapper', 'colorMapName': 'XTerm']) {
    steps.withCredentials([steps.usernamePassword(credentialsId: "test", usernameVariable: 'GIT_USERNAME', passwordVariable: 'GIT_PASSWORD')]) {
        steps.sh """                                                      
        curl  --silent -u \${GIT_USERNAME}:\${GIT_PASSWORD} -H "Content-Type: application/json" -X POST https://some.url --data-binary @- <<-EOF
        {
        "state": "$STATE",
        "key": "\$JOB_NAME",
        "name": "\$BUILD_TAG",
        "url": "\$BUILD_URL",
        "description": "$DESCRIPTION"
        }
        EOF"""

This resides in jenkins shared library. I've read that I have to avoid whitespaces, but I don't see what whitespaces I've created here. I keep receiving this error:

line 11: warning: here-document at line 2 delimited by end-of-file (wanted `EOF')

Answer 1

Apart from potentially creating invalid JSON unless you can assume that your variables are already JSON-encoded, you have an indentation issue with your here-document.

You are using <<-EOF to start the here-document containing your JSON document. Such a here-document should be delimited by the string EOF and this string needs to be flush left (no indentation at all) or it may be indented using tab-characters (not spaces). There may be no whitespace or other characters of any kind on the same line after the EOF string.

My guess is that the code is indented using spaces, which is why the shell's parser can't find the terminating EOF string.