How to use multiline variable in a script

[baxelrod-bdai]

I am having trouble using a multiline variable in the script part of action actions/github-script@v6.

I found out how to convert it to a one line string, and this works fine in the run part of a second step. For example, this works:

 steps:
- name: Step1
id: stepone
run: |
long_test_string="line one
line two
line three"
echo "Long test string:"
echo $long_test_string
LONG2=${long_test_string}
LONG2="${LONG2//'%'/'%25'}"
LONG2="${LONG2//$'\n'/'%0A'}"
LONG2="${LONG2//$'\r'/'%0D'}"
echo "long2=$LONG2" >> "$GITHUB_OUTPUT"
- name: Step2
run: |
echo "${{ steps.stepone.outputs.long2 }}"

However, when I try to display this in a PR comment, I get an error.

 - name: Step3
uses: actions/github-script@v6
with:
script: |
github.rest.issues.createComment({
issue_number: context.issue.number,
owner: context.repo.owner,
repo: context.repo.repo,
body: "${{ steps.stepone.outputs.long2 }}"
})

[joshmgross]

I'd recommend passing inputs through an environment variable into your script rather than inlining the expression.

https://github.com/actions/github-script#use-env-as-input

For example:

 - name: Step3uses: actions/github-script@v6env:
LONG_OUTPUT: ${{ steps.stepone.outputs.long2 }}with:
script: | github.rest.issues.createComment({ issue_number: context.issue.number, owner: context.repo.owner, repo: context.repo.repo, body: process.env.LONG_OUTPUT })