Fix Maven inability to overwrite repository urls by ID #5878
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mctofu
approved these changes
Oct 12, 2022
| @@ -36,27 +37,39 @@ def initialize(dependency_files:, evaluate_properties: true) | |||
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| # Collect all repository URLs from this POM and its parents | |||
| def repository_urls(pom:, exclude_inherited: false) | |||
| repo_urls_in_pom = | |||
| entries = gather_repository_urls(pom: pom, exclude_inherited: exclude_inherited) | |||
| urls = Set.new | |||
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ids might be a better name since we store the ids in it?
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In Maven, it is possible to overwrite repository URLs defined elsewhere by defining a repository with the same ID, as long as the file has precedence according to the order defined in the docs.
This is often used to define a different central repository to replace the default one inherited from the Super POM:
In this PR, I've tried to honor that behavior by gathering the IDs along with the URL and deduplicate by ID according to that precedence.
One caveat is that Maven differentiates between repository and pluginRepository. Our code does not, so if central is overwritten in a repository it will also overwrite it in pluginRepository. It seems somewhat unlikely that only one or the other is overwritten, so I think this is probably ok for now.