[JENKINS-48472] shell fails on empty assignments, but shell exit code is 0

Pipeline fails script when SUB-shell returns non 0 exit code, main shell works fine and returns 0.

Steps to reproduce:

very simple pipeline

node('sddc-controller') {
stage('Setup foundation') {
sh """
source ~/test.sh
"""
}
}

test.sh

AA="aaaaaaa"

R="$(echo $AA | tr '[:upper:]' '[:lower:]' | grep 'bb')"

#export R="$(echo $AA | tr '[:upper:]' '[:lower:]' | grep 'bb')"

echo "R=$R"

this fails,

if 'export R' line is used then script gets executed fine;

if AA to contain 'bb' then script works tool.

Expected behavior: should be the same as bash, do not fail R= assignment when grep returns non 0 exit code,

Konstantin Ignatyev created issue - 2017-12-11 06:08

Mark Waite made changes - 2023-11-15 13:58

Component/s		New: workflow-cps-plugin [ 21713 ]
Component/s	Original: shell-script-scm-plugin [ 15913 ]

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