75 lines
4.3 KiB
Markdown
75 lines
4.3 KiB
Markdown
# CommandKit v0.3.0
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## Summary
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CommandKit v0.3.0 adds application-owned command and flag aliases and shared
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invocation reporting. This pre-1.0 minor release also updates the installation
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declaration type and Invocation struct shape, replaces the error-first outcome
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and diagnostic-delivery APIs, and reserves reporting flag names; review the
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migration guidance before upgrading.
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## Changes
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- Declare command shortcuts and global or canonical-command-scoped flag
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spellings with `Alias`, `FlagAlias`, and `FlagAliasFor`. Install routing rules
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beside canonical commands through `New` or `App.Register`. Aliases route to
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existing handlers and preserve the target command's operand and binding
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behavior.
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- Read the entered and canonical command paths from `Invocation` with
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`EnteredPath` and `CanonicalPath`.
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- Interpret a canonical short value flag such as `-c=` as an explicitly
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supplied empty value, consistent with `--color=` and `-c ""`.
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- Obtain an invocation-scoped `Reporter` from each handler's `Invocation` for
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substantive output, Warning/Info/Progress/Debug messages, deferred messages,
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and managed report rendering. The shared `--quiet`, `--verbose`, `--debug`,
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and `--progress` flags apply across core and integration commands.
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- Return terminal explanation text with `Failure`, `Usage`, or
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`Outcome.WithExplanation`; attach an optional operation error separately with
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`Outcome.WithCause`. Returned `Outcome.Presentation` records output and
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diagnostic delivery observations without changing the operation cause.
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## Compatibility and migration
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`New` and `App.Register` now accept `...Declaration` instead of `...Command`.
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Command, group, and integration command factories still return `Command`, so
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individual factory calls can be passed directly. A `[]Command` cannot be
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expanded into `...Declaration`; use a `[]Declaration` for mixed reusable
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collections or convert each command element before expanding it. Function
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values whose parameter type is `...Command`, including wrappers assigned from
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`New` or `Register`, must update their signature to `...Declaration`.
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Adding private route fields to `Invocation` means positional struct literals no
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longer compile. `Invocation` no longer contains `Streams`; `App.Execute` supplies
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the reporter and route paths to handlers. `Streams` remains the argument to
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`App.Execute`, where the caller owns the result and diagnostic writers.
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Handlers that used `invocation.Streams.Out` or `.Err` should use
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`invocation.Reporter().Output()` or the categorized reporting methods. Replace
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`Failure(err)` and `Usage(err)` with an operator-facing explanation and an
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optional `.WithCause(err)`; causes alone are not rendered. Replace
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`Outcome.Diagnostics` submissions and terminal `SeverityError` records with
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reporter messages and an `Outcome` explanation. Provider-returned
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`Acquired.Diagnostics` remain passive data for the owning integration to
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submit. Replace `ReportIncomplete`, `DiagnosticDelivery`, and `DeliveryError`
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with `Outcome.Presentation.Output` and `.Diagnostics`, whose `DeliveryResult`
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contains a state plus first render and write errors.
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The long flags `--quiet`, `--verbose`, `--debug`, and `--progress` are reserved
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for CommandKit reporting and cannot be declared by applications. Application
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aliases may target them. See the current [CLI reporting contract](../cli.md#reporting)
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and [consumer migration guide](../consumers/guide.md#invocation-reporting) for
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their behavior and API examples.
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The consumer minimum remains Go 1.26.0 and the maintainer release toolchain
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remains Go 1.26.8. Core v0.3.0 must be published before preparing dependent
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integration releases that adopt it and record downloaded dependency sums; this
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release does not change their v0.1.0 release records.
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See the [consumer guide](https://gitea.maximumdirect.net/eric/CommandKit/src/tag/v0.3.0/docs/consumers/guide.md),
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[CLI reference](https://gitea.maximumdirect.net/eric/CommandKit/src/tag/v0.3.0/docs/cli.md),
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and [maintainer release procedure](https://gitea.maximumdirect.net/eric/CommandKit/src/tag/v0.3.0/docs/release.md).
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[COPYRIGHT](https://gitea.maximumdirect.net/eric/CommandKit/src/tag/v0.3.0/COPYRIGHT) |
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[LICENSE](https://gitea.maximumdirect.net/eric/CommandKit/src/tag/v0.3.0/LICENSE) |
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[ATTRIBUTION](https://gitea.maximumdirect.net/eric/CommandKit/src/tag/v0.3.0/docs/oss/attribution.md)
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