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51 lines
1.6 KiB
Markdown
51 lines
1.6 KiB
Markdown
---
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title: Deprecation
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description: The Hugo project follows a formal and consistent process to deprecate functions, methods, and configuration settings.
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categories: [troubleshooting]
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keywords: []
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menu:
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docs:
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parent: troubleshooting
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weight: 50
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weight: 50
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---
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When a project _deprecates_ something, they are telling its users:
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1. Don't use Thing One anymore.
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2. Use Thing Two instead.
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3. We're going to remove Thing One at some point in the future.
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[article]: https://en.wikipedia.org/wiki/Deprecation
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Think of deprecation as a statement of intent. This Wikipedia [article] describes common reasons for deprecation:
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- The feature has been replaced by a more powerful alternative.
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- The feature contains a design flaw.
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- The feature is considered extraneous, and will be removed in the future in order to simplify the system as a whole.
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- A future version of the software will make major structural changes, making it impossible or impractical to support older features.
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- Standardization or increased consistency in naming.
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- A feature that once was available only independently is now combined with its co-feature.
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After the project team deprecates something in code, Hugo will:
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1. Log an INFO message for 6 minor releases[^1]
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2. Log a WARN message for another 6 minor releases
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3. Log an ERROR message and fail the build thereafter
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To see the INFO messages, you must use the `--logLevel` command line flag:
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```text
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hugo --logLevel info
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```
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To limit the output to deprecation notices:
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```text
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hugo --logLevel info | grep deprecate
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```
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Run the above command every time you upgrade Hugo.
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[^1]: For example, v0.1.1 => v0.2.0 is a minor release.
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