Skip to content

fix(action): block scalar support for contiguous separators#31978

Open
brandtkeller wants to merge 1 commit intohelm:mainfrom
brandtkeller:31977_yaml_scalars
Open

fix(action): block scalar support for contiguous separators#31978
brandtkeller wants to merge 1 commit intohelm:mainfrom
brandtkeller:31977_yaml_scalars

Conversation

@brandtkeller
Copy link
Copy Markdown

closes #31977

What this PR does / why we need it:

I believe this is a bit of a regression in behavior given the context of the issue and possibly introduced as part of #31868. I was looking through #31941 which proposes the removal of fixDocSeparators and for which the associated test case here may be relevant and otherwise this PR could be closed.

Special notes for your reviewer:

If applicable:

  • this PR contains user facing changes (the docs needed label should be applied if so)
  • this PR contains unit tests
  • this PR has been tested for backwards compatibility

Signed-off-by: Brandt Keller <brandt.keller@defenseunicorns.com>
Copilot AI review requested due to automatic review settings March 28, 2026 17:02
@pull-request-size pull-request-size Bot added the size/S Denotes a PR that changes 10-29 lines, ignoring generated files. label Mar 28, 2026
Copy link
Copy Markdown
Contributor

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull request overview

Fixes a regression in Helm’s post-renderer manifest processing where fixDocSeparators could mis-handle long contiguous dash sequences (e.g., within YAML block scalars), incorrectly inserting newlines and producing invalid multi-doc YAML during annotateAndMerge.

Changes:

  • Update fixDocSeparators to skip over contiguous - runs when a found --- is not at a line start, preventing re-detection inside the same dash sequence.
  • Add a unit test covering long dash sequences inside an indented block scalar line.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File Description
pkg/action/action.go Adjusts separator-scanning logic to consume contiguous dash runs when rejecting non-separator --- matches.
pkg/action/action_test.go Adds regression test ensuring long dash sequences in block scalars are preserved unchanged.

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

size/S Denotes a PR that changes 10-29 lines, ignoring generated files.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

YAML block scalars containing long dash sequences regression

2 participants