maximum commenter_input length? #32
Description
I started getting the following error
Error: An error occurred trying to start process '/usr/bin/docker' with working directory '/home/runner/work/...'. Argument list too long
with
- name: Terragrunt Plan
id: plan
if: github.event_name == 'pull_request'
run: terragrunt run-all plan -no-color --terragrunt-non-interactive
continue-on-error: true
- name: Post Plan
uses: robburger/[email protected]
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
EXPAND_SUMMARY_DETAILS: 'true' # Override global environment variable; expand details just for this step
with:
commenter_type: plan
commenter_input: ${{ format('{0}{1}', steps.plan.outputs.stdout, steps.plan.outputs.stderr) }}
commenter_exitcode: ${{ steps.plan.outputs.exitcode }}
I was able to work around it by truncating the plan to 65535 characters before sending it to terraform-pr-commenter, but what is the maximum string length we can send to terraform-pr-commenter as I feel that is where the issue is? The terraform-pr-commenter code should properly truncate the string down to 65300 characters
if [[ $EXIT_CODE -eq 0 || $EXIT_CODE -eq 2 ]]; then
CLEAN_PLAN=$(echo "$INPUT" | sed -r '/^(An execution plan has been generated and is shown below.|Terraform used the selected providers to generate the following execution|No changes. Infrastructure is up-to-date.|No changes. Your infrastructure matches the configuration.|Note: Objects have changed outside of Terraform)$/,$!d') # Strip refresh section
CLEAN_PLAN=$(echo "$CLEAN_PLAN" | sed -r '/Plan: /q') # Ignore everything after plan summary
CLEAN_PLAN=${CLEAN_PLAN::65300} # GitHub has a 65535-char comment limit - truncate plan, leaving space for comment wrapper
CLEAN_PLAN=$(echo "$CLEAN_PLAN" | sed -r 's/^([[:blank:]]*)([-+~])/\2\1/g') # Move any diff characters to start of line
if [[ $COLOURISE == 'true' ]]; then
CLEAN_PLAN=$(echo "$CLEAN_PLAN" | sed -r 's/^~/!/g') # Replace ~ with ! to colourise the diff in GitHub comments
fi
although it would be nice to merge pull request #25 to give an indication that the plan was truncated/referenced elsewhere.