rust-lang / rust-lang/rustup

Command to list available nightlies

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Dominant language
Rust
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Description

There's a lot of confusion around installing nightlies for a specific date, both because nightlies don't always get built, and because the dates reported by --version don't match.

One way to improve the situation would be to add a command to list the dates for which a nightly exists. Also, when a nightly is not found, it might be useful to add an explanation, and display the previous/next available nightlies relative to the requested date.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by examining rustup's existing nightly installation flow and the --version output, focusing on how nightly dates are discovered and reported. Define a command that lists available nightly dates and improves the missing-nightly message with the previous and next available dates; done means the requested date and nearby alternatives are reported consistently.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cli
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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