forked from extern/nushell
f35741d50e
3 Commits
Author | SHA1 | Message | Date | |
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Antoine Stevan
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030e55acbf
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add unfold back with a deprecation warning (#10771)
related to - https://github.com/nushell/nushell/pull/10770 # Description because some people look into `unfold` already (myself included lol) and there will be 4 weeks with that new command which has a decent section in the release note, i fear that https://github.com/nushell/nushell/pull/10770 is a bit too brutal, removing `unfold` without any warning... this PR brings `unfold` back to life. the `unfold` command will have a deprecation warning and will be removed in 0.88. # User-Facing Changes `unfold` is only deprecated, not removed. # Tests + Formatting # After Submitting |
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Darren Schroeder
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adb99938f7
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rename unfold to generate (#10770)
# Description This PR renames the `unfold` command to `generate`. closes #10760 # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # Tests + Formatting <!-- Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass (on Windows make sure to [enable developer mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging)) - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # After Submitting <!-- If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date. --> |
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Hudson Clark
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fa2e6e5d53
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feat: Add unfold command (#10489)
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# Description
<!--
Thank you for improving Nushell. Please, check our [contributing
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Description of your pull request goes here. **Provide examples and/or
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> [!NOTE]
> This PR description originally used examples where the `generator`
closure returned a list. It has since been updated to use records
instead.
The `unfold` command allows users to dynamically generate streams of
data. The stream is generated by repeatedly invoking a `generator`
closure. The `generator` closure accepts a single argument and returns a
record containing two optional keys: 'out' and 'next'. Each invocation,
the 'out' value, if present, is added to the stream. If a 'next' key is
present, it is used as the next argument to the closure, otherwise
generation stops.
The name "unfold" is borrowed from other functional-programming
languages. Whereas `fold` (or `reduce`) takes a stream of values and
outputs a single value, `unfold` takes a single value and outputs a
stream of values.
### Examples
A common example of using `unfold` is to generate a fibbonacci sequence.
See
[here](
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