Remove trailing whitespace from merge aliases. #260
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PR google#247 introduced a regression with YAML documents such as this: ```yaml config: &shared key: value instance: <<: *shared ``` Due to the "correct alias keys" setting, a extra space was emitted after `*shared`. This created trailing whitespace which many tools (rightly) complain about. This change adds an extra condition to only emit the space in the "simple key" context. I'm not enough of a YAML expert to be sure this is the right thing to do, but it fixes my problem without failing any of the existing tests.
braydonk
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Jun 23, 2025
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I'm pretty sure this is the correct fix (it is at worst more correct than what I originally did). Thank you for the patch!
steeef
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* fix(yaml): Remove trailing whitespace from merge aliases. PR google#247 introduced a regression with YAML documents such as this: ```yaml config: &shared key: value instance: <<: *shared ``` Due to the "correct alias keys" setting, a extra space was emitted after `*shared`. This created trailing whitespace which many tools (rightly) complain about. This change adds an extra condition to only emit the space in the "simple key" context. I'm not enough of a YAML expert to be sure this is the right thing to do, but it fixes my problem without failing any of the existing tests. * test(formattest): Print a diff between the expected and actual result.
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PR #247 introduced a regression with YAML documents such as this:
Due to the "correct alias keys" setting, a extra space was emitted after
*shared. This created trailing whitespace which many tools (rightly) complain about.This change adds an extra condition to only emit the space in the "simple key" context. I'm not enough of a YAML expert to be sure this is the right thing to do, but it fixes my problem without failing any of the existing tests.