How to use the command cargo yank (with examples)

How to use the command cargo yank (with examples)

This article will explain the various use cases of the cargo yank command, which is used to remove a pushed crate from the index. It is typically used when there is a significantly broken crate that was accidentally released. This command prevents new projects from using the crate, but does not remove any data, meaning the crate is still present.

Use case 1: Yank the specified version of a crate

Code:

cargo yank crate@version

Motivation:

The motivation for yanking a specific version of a crate is to prevent new projects from using a specific version that is known to be broken or have issues. By yanking a specific version, you can ensure that new projects only use working and stable versions of the crate.

Explanation:

  • cargo yank: The command used to yank a crate from the index.
  • crate: The name of the crate to yank.
  • version: The specific version of the crate to yank.

Example output:

info: yanked crate `crate` version `version`

Use case 2: Undo a yank (i.e. allow downloading it again)

Code:

cargo yank --undo crate@version

Motivation:

The motivation for undoing a yank is to allow downloading a crate that was previously yanked and prevent new projects from using it again. This is useful when a previously broken crate has been fixed and is ready to be used again.

Explanation:

  • cargo yank: The command used to undo a yank.
  • --undo: An option that instructs the command to undo the yank.
  • crate: The name of the crate to undo the yank for.
  • version: The specific version of the crate to undo the yank for.

Example output:

info: restored crate `crate` version `version`

Use case 3: Specify the name of the registry to use

Code:

cargo yank --registry name crate@version

Motivation:

The motivation for specifying the name of the registry is to allow yanking or undoing a yank for a crate in a specific registry. This is useful when working with multiple registries or when a custom registry name is defined in the configuration.

Explanation:

  • cargo yank: The command used to specify the registry name.
  • --registry name: An option that specifies the name of the registry to use.
  • crate: The name of the crate to yank or undo the yank for.
  • version: The specific version of the crate to yank or undo the yank for.

Example output:

info: yanked crate `crate` version `version` from registry `name`

Conclusion:

The cargo yank command is a useful tool for managing crates in Rust projects. It allows you to yank specific versions of a crate to prevent new projects from using broken or unstable versions. You can also undo a yank to allow downloading a previously yanked crate again. Additionally, you can specify the name of the registry to use, which is useful when working with multiple registries or custom registry names.

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