Update pre-commit hook google/yamlfmt to v0.16.0

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This PR contains the following updates:

Package	Type	Update	Change
google/yamlfmt	repository	minor	v0.14.0 -> v0.16.0

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Release Notes

google/yamlfmt (google/yamlfmt)

v0.16.0

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Fixing yaml library stuff

This release features fixes for a couple problems in the yaml library, and one new feature.

Features

Alternate Array Indentation

There is now support for array_indent, indenting arrays at a different level than anything else, and indent_root_array, an option to indent an array that is at the root of the document.
To tell you the truth, I couldn't have possibly imagined anyone wanting this. It's quite outlandish to me. I decided to implement it because the request was well specified (#​237), it was very simple to implement, and it could be implemented in a completely unintrusive and opt-in way, without me needing to worry whether other parsing might break as a result. Given that, I figured adding new options couldn't hurt!

Bug Fixes

Nested Indentless Arrays

There was an edge case where nested arrays would get collapsed when doing indentless arrays. This has been fixed now and should function as expected.

Comment Rendering Above Document Start

Comments above a document start used to end up rendered below the document start token with an extra newline. After digging into it I found out that this was a deliberate choice made by the upstream library (i.e. it was not in libyaml which that library was ported from) and I consider it an odd choice. I've changed it to work how one would expect, with comments above document start being rendered above the --- token.
I decided to make the change directly without guarding it with an option, since I thought the default behaviour was so odd and I can't imagine a world where someone wants it that way. But yaml is stupid, you never know if there's a random edge case I couldn't fathom that was broken by this. Hoping it will be okay, but might need a patch release if there's something I missed.

Contributors

• Thanks @​abicky for fixing the nested indentless array bug
• Thanks @​ELLIOTTCABLE for the original feature request for array indentation and contributing to the development of it

v0.15.0

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Happy 2025!

New year new yamlfmt release! This one once again only features things contributed by the community. I am working on a major feature that I was hoping to finish before pushing this release out, but I ran into a snag and I didn't want to delay these things getting released.

Breaking Changes

New Minimum Go Version is 1.21

Originally I was keeping this library compatible with Go 1.18, which was the latest at the time. There was a time when I tried to update the minimum version to Go 1.20 when it was released, and I ended up getting complaints so I kept it where it was. Go 1.18 is long EOL, and it makes more sense as an application to stay up to date to in-support releases. So the new rule of thumb will be to maintain compatibility with the oldest non-EOL version of Go going forward.

Features

gitlab output format

Generate yamlfmt results in GitLab Code Quality report format. See more info here.

gitignore match type

We had support already for gitignore_excludes, i.e. using a gitignore file to match which files to exclude, similar to how it works with Git. However, it can be useful for positive matches, i.e. what files to actually include, since the gitignore patterns can also be negated meaning that all includes and excludes can be managed by a single gitignore-style file. See more info here.

yamlfmt Docker image

yamlfmt is now available as a Docker image! This was originally done for the purpose of using yamlfmt in CI, but could be useful in other scenarios too. See download and usage instructions in the README.

Contributors

• Thanks @​octo for contributing the gitlab output format and gitignore match type, as well as improvements to the integration test workflow
• Thanks @​mrueg for updating the build and test flows from Go 1.18 to Go 1.21 and removing EOL versions
• Thanks @​fsrv-xyz for the Docker image work
• Thanks @​alexandear for doc fixes and test name typo fixes
• Thanks @​wusatosi for the pre-commit doc update

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I'm hoping my big new feature will be ready for the next update. Thanks for using yamlfmt, and thanks to all the contributors!

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