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Expose cargo add internals as edit API #11059

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merged 2 commits into from
Sep 14, 2022
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cassaundra
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Move the manifest editing utilities from cargo add to a new cargo::util::edit module as part of prep work for cargo remove (#10520). No other substantive changes have been made, as this PR is intended only to reduce the refactoring surface area of the implementation of the feature itself.

Background

In cargo edit, there are a number of top-level modules which enable editing of Cargo manifest files (including src/dependency.rs and src/manifest.rs). In #10472, these files were added instead as a submodule of the cargo add command, with the stated intention of breaking them out later for subsequent cargo-edit subcommands. This PR follows through on that expectation.

Decisions

Concerns raised in #10472 regarding this change:

  • Where should the editing API should live?
    • Proposal: cargo::ops::edit
    • Justification: precedent has been set by cargo::ops::resolve and others to have utils shared by multiple ops live in cargo::ops. This is also serves to be a rather conservative API change.
    • Concerns: the name edit could be overly general for those unfamiliar with the cargo edit project (see alternatives)
    • Alternatives:
      • cargo::edit: this seems to me to be too top level, and would confuse users trying to discover the cargo API
      • cargo::util::edit: if we want to expose this at a higher level, perhaps renaming to act as a counterpart to crate::util::toml
      • For each of these, replace edit with toml_edit, toml_mut, manifest_edit, manifest_mut, edit_toml, edit_manifest etc. for a more specific module name
  • Any more specific naming of types reduce clashes (e.g. Dependency or Manifest being fairly generic)
    • Currently the only thing distinguishing these similarly named types is their path, which the edit module makes more clear
    • Alternatives: rename to EditDependency/EditManifest, TomlDependency/TomlManifest, etc.

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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @ehuss (or someone else) soon.

Please see the contribution instructions for more information.

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Sep 7, 2022
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epage commented Sep 7, 2022

with the stated intention of breaking them out later for subsequent cargo-edit subcommands

Specifically, I wanted to separate out the conversation on "where" from actually merging cargo add. That delayed conversation has finally come up

src/cargo/ops/mod.rs Outdated Show resolved Hide resolved
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bors commented Sep 13, 2022

☔ The latest upstream changes (presumably #11075) made this pull request unmergeable. Please resolve the merge conflicts.

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Worth noting that Cargo is not stable when using as a library.

Before moving on, could we have a module level doc briefing the workflow and prominent items in this module?

Move cargo add utils out for future use by other subcommands (namely cargo
remove, per rust-lang#10520).
@cassaundra
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Before moving on, could we have a module level doc briefing the workflow and prominent items in this module?

Yes. I just resolved the merge conflicts introduced by #11075, and will next add more module documentation to util::toml_mut.

@weihanglo weihanglo added the A-cargo-api Area: cargo-the-library API and internal code issues label Sep 13, 2022
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I've added better module documentation for util::toml_mut, and made a minor stylistic changes that I believe should be more in line with cargo's convention. If these are too overzealous, let me know and I can revert them.

Notable changes:
- Add/improve module documentation.
- Add missing item documentation.
- Add "editable" to `Dependency` and `Manifest` to further distinguish them from
  similarly named items in the library.

Stylistic changes:
- Terminate doc comments with a period.
- Wrap doc comments.
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epage commented Sep 14, 2022

Thanks!

@bors r+

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bors commented Sep 14, 2022

📌 Commit d1b041d has been approved by epage

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 14, 2022
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bors commented Sep 14, 2022

⌛ Testing commit d1b041d with merge 22dd4bf...

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bors commented Sep 14, 2022

☀️ Test successful - checks-actions
Approved by: epage
Pushing 22dd4bf to master...

@bors bors merged commit 22dd4bf into rust-lang:master Sep 14, 2022
@cassaundra cassaundra mentioned this pull request Sep 16, 2022
5 tasks
weihanglo added a commit to weihanglo/rust that referenced this pull request Sep 18, 2022
8 commits in 082503982ea0fb7a8fd72210427d43a2e2128a63..73ba3f35e0205844418260722c11602113179c4a
2022-09-13 17:49:38 +0000 to 2022-09-18 06:38:16 +0000

- Revert "Clarify when cargo detects changes" (rust-lang/cargo#11107)
- Fix links to workspace inheritance headings in workspace docs (rust-lang/cargo#11103)
- docs(ref): Clarify workspace settings (rust-lang/cargo#11082)
- Update comment about ResolveVersion default version (rust-lang/cargo#11095)
- [master] Run `reach_max_unpack_size` test only on debug build (rust-lang/cargo#11091)
- Clarify when cargo detects changes (rust-lang/cargo#11092)
- [master] Fix for CVE-2022-36113 and CVE-2022-36114 (rust-lang/cargo#11089)
- Expose cargo add internals as edit API (rust-lang/cargo#11059)
bors added a commit to rust-lang-ci/rust that referenced this pull request Sep 19, 2022
Update cargo (CVE fixes included)

8 commits in 082503982ea0fb7a8fd72210427d43a2e2128a63..73ba3f35e0205844418260722c11602113179c4a
2022-09-13 17:49:38 +0000 to 2022-09-18 06:38:16 +0000

- Revert "Clarify when cargo detects changes" (rust-lang/cargo#11107)
- Fix links to workspace inheritance headings in workspace docs (rust-lang/cargo#11103)
- docs(ref): Clarify workspace settings (rust-lang/cargo#11082)
- Update comment about ResolveVersion default version (rust-lang/cargo#11095)
- [master] Run `reach_max_unpack_size` test only on debug build (rust-lang/cargo#11091)
- Clarify when cargo detects changes (rust-lang/cargo#11092)
- [master] Fix for GHSA-rfj2-q3h3-hm5j and GHSA-2hvr-h6gw-qrxp (rust-lang/cargo#11089)
- Expose cargo add internals as edit API (rust-lang/cargo#11059)
@ehuss ehuss added this to the 1.65.0 milestone Sep 21, 2022
bors added a commit that referenced this pull request Oct 6, 2022
Import `cargo remove` into cargo

## What does this PR try to resolve?

This PR merges `cargo remove` from [cargo-edit](https://github.com/killercup/cargo-edit) into cargo.

### Motivation

- General approval from community, see #5586 and #10520.
- Satisfying symmetry between add and remove.
- Help users clean up their manifests (for example, when users forget to remove optional dependencies from feature lists).

With #10472, cargo-add was added to cargo. As part of that discussion, it was also proposed that `cargo rm` (now `cargo remove`) eventually be added as well.

### Drawbacks

- Additional code always opens the door for more bugs and features
  - The scope of this command is fairly small though
  - Known bugs and most known features were resolved before this merge proposal

### Behavior

`cargo remove` operates on one or more dependencies from a manifest, removing them from a specified dependencies section (using the same flags as `cargo-add`) and from `[features]` activations if the dependency is optional. Feature lists themselves are not automatically removed when made empty.  Like with cargo-add, the lock file is automatically updated.

Note: like `cargo add`, `cargo remove` refers to dependency names, rather than crate names, which can be different with the presence of the `name` field.

Note: `cargo rm` has been renamed to `cargo remove`, based on prior art and user feedback (see [discussion](#10520)). Although this renaming is arguably an improvement, adding an `rm` alias could make the switch easier for existing users of cargo-edit (at the cost of a naming conflict which would merit insta-stabilization).

#### Help output

<details>

  ```shell
  $ cargo run -- remove --help
  cargo-remove
  Remove dependencies from a Cargo.toml manifest file

  USAGE:
      cargo remove [OPTIONS] <DEP_ID>...

  ARGS:
      <DEP_ID>...    Dependencies to be removed

  OPTIONS:
      -p, --package [<SPEC>...]     Package to remove from
      -v, --verbose                 Use verbose output (-vv very verbose/build.rs output)
          --manifest-path <PATH>    Path to Cargo.toml
          --offline                 Run without accessing the network
      -q, --quiet                   Do not print cargo log messages
          --dry-run                 Don't actually write the manifest
      -Z <FLAG>                     Unstable (nightly-only) flags to Cargo, see 'cargo -Z help' for details
      -h, --help                    Print help information

  SECTION:
          --dev                Remove as development dependency
          --build              Remove as build dependency
          --target <TARGET>    Remove as dependency from the given target platform
  ```

</details>

#### Example usage

```
cargo remove serde
cargo remove criterion httpmock --dev
cargo remove winhttp --target x86_64-pc-windows-gnu
cargo remove --package core toml
```

## How should we test and review this PR?

This is following the pattern from cargo-add which was implemented in three different PRs (implementation, documentation, and completions), in the interest of reducing the focusing discussions in each PR and allowing cargo-add's behavior to settle to avoid documentation churn.

1. #10472
2. #10578
3. #10577

The remaining changes (documentation and shell completions) will follow shortly after.

Some work has already begun on this feature in #11059.

Work on this feature was carried out on the [`merge-rm`](killercup/cargo-edit@master...merge-rm) branch of cargo-edit with PRs reviewed by `@epage.` If you are interested in seeing how this feature evolved to better match cargo's internals, you might find the commit history there to be helpful. As this PR is reviewed, changes will be made both here and on that branch, with the commit history being fully maintained on the latter.

`cargo remove` is structured like most other subcommands:

- `src/bin/cargo/commands/remove.rs` contains the cli handling and top-level execution.
- `src/cargo/ops/cargo_remove.rs` contains the implementation of the feature itself.

In order to support this feature, the `remove_from_table` util was added to `util::toml_mut::manifest::LocalManifest`.

Tests are split out into a separate commit to make it easier to review the production code and tests.  Tests have been implemented with `snapbox`, structured similarly to the tests of `cargo add`.

### Prior art

- Python: [`poetry remove`](https://python-poetry.org/docs/cli/#remove)
  - Supports dry run
- JavaScript: [`yarn remove`](https://yarnpkg.com/cli/remove)
  - Supports wildcards
- JavaScript: [`pnpm remove`](https://pnpm.io/cli/remove)
- Go: [`go get`](https://go.dev/ref/mod#go-get)
  - `go get foo@none` to remove
- Julia: [`pkg rm`](https://docs.julialang.org/en/v1/stdlib/Pkg/)
  - Supports `--all` to remove all dependencies
- Ruby: [`bundle remove`](https://bundler.io/v2.2/man/bundle-remove.1.html)
- Dart: [`dart pub remove`](https://dart.dev/tools/pub/cmd/pub-remove)
  - Supports dry run
- Lua: [`luarocks remove`](https://github.com/luarocks/luarocks/wiki/remove)
  - Supports force remove
- .NET: [`Uninstall-Package`](https://docs.microsoft.com/en-us/nuget/reference/ps-reference/ps-ref-uninstall-package)
  - Supports dry run
  - Supports removal of dependencies
  - Supports force remove (disregards dependencies)
- Haxe: [`haxelib remove`](https://lib.haxe.org/documentation/using-haxelib/#remove)
- Racket: [`raco pkg remove`](https://docs.racket-lang.org/pkg/cmdline.html#%28part._raco-pkg-remove%29)
  - Supports dry run
  - Supports force remove (disregards dependencies)
  - Supports demotion to weak dependency (sort of a corollary of force remove)

### Insta-stabilization

In the discussion of `cargo add`'s stabilization story ([Zulip stream](https://rust-lang.zulipchat.com/#narrow/stream/246057-t-cargo/topic/Stablizing.20cargo-add)), it was brought up that the feature might benefit from being insta-stabilized to avoid making the cargo-edit version of the binary hard to access. Since `cargo rm` (from cargo-edit) was renamed to `cargo remove` here, [such a conflict no longer exists](https://crates.io/search?q=cargo%20remove), so this is less of a concern.

Since this feature is already has a had a long run of user testing in cargo-edit and doesn't have unsettled UI questions like cargo-add did, it might still be a candidate for insta-stabilization.

### Deferred work

Necessary future work:

- Add documentation.
- Add shell completions.
- Perform GC on workspace dependencies when they are no longer used (see #8415).
  - This is inspired by a feature from the RFC that was dropped (unused dependencies triggering a warning)
  - This was deferred out to avoid challenges with testing nightly features

It was found in the review of `cargo add` that it was best to defer these first two items to focus the discussion and as there was still behavior churn during the review of cargo-add.

### Future Possibilities

The following are features which we might want to add to `cargo remove` in the future:

- Add a `cargo rm` alias to ease transition for current cargo-edit users
- Automatically convert between dash and underscores in deps: killercup/cargo-edit#690
- Remove unused dependencies: killercup/cargo-edit#415
- Clean up caches: killercup/cargo-edit#647

### Additional information

Fixes #10520.
bors added a commit that referenced this pull request Oct 6, 2022
Import `cargo remove` into cargo

## What does this PR try to resolve?

This PR merges `cargo remove` from [cargo-edit](https://github.com/killercup/cargo-edit) into cargo.

### Motivation

- General approval from community, see #5586 and #10520.
- Satisfying symmetry between add and remove.
- Help users clean up their manifests (for example, when users forget to remove optional dependencies from feature lists).

With #10472, cargo-add was added to cargo. As part of that discussion, it was also proposed that `cargo rm` (now `cargo remove`) eventually be added as well.

### Drawbacks

- Additional code always opens the door for more bugs and features
  - The scope of this command is fairly small though
  - Known bugs and most known features were resolved before this merge proposal

### Behavior

`cargo remove` operates on one or more dependencies from a manifest, removing them from a specified dependencies section (using the same flags as `cargo-add`) and from `[features]` activations if the dependency is optional. Feature lists themselves are not automatically removed when made empty.  Like with cargo-add, the lock file is automatically updated.

Note: like `cargo add`, `cargo remove` refers to dependency names, rather than crate names, which can be different with the presence of the `name` field.

Note: `cargo rm` has been renamed to `cargo remove`, based on prior art and user feedback (see [discussion](#10520)). Although this renaming is arguably an improvement, adding an `rm` alias could make the switch easier for existing users of cargo-edit (at the cost of a naming conflict which would merit insta-stabilization).

#### Help output

<details>

  ```shell
  $ cargo run -- remove --help
  cargo-remove
  Remove dependencies from a Cargo.toml manifest file

  USAGE:
      cargo remove [OPTIONS] <DEP_ID>...

  ARGS:
      <DEP_ID>...    Dependencies to be removed

  OPTIONS:
      -p, --package [<SPEC>...]     Package to remove from
      -v, --verbose                 Use verbose output (-vv very verbose/build.rs output)
          --manifest-path <PATH>    Path to Cargo.toml
          --offline                 Run without accessing the network
      -q, --quiet                   Do not print cargo log messages
          --dry-run                 Don't actually write the manifest
      -Z <FLAG>                     Unstable (nightly-only) flags to Cargo, see 'cargo -Z help' for details
      -h, --help                    Print help information

  SECTION:
          --dev                Remove as development dependency
          --build              Remove as build dependency
          --target <TARGET>    Remove as dependency from the given target platform
  ```

</details>

#### Example usage

```
cargo remove serde
cargo remove criterion httpmock --dev
cargo remove winhttp --target x86_64-pc-windows-gnu
cargo remove --package core toml
```

## How should we test and review this PR?

This is following the pattern from cargo-add which was implemented in three different PRs (implementation, documentation, and completions), in the interest of reducing the focusing discussions in each PR and allowing cargo-add's behavior to settle to avoid documentation churn.

1. #10472
2. #10578
3. #10577

The remaining changes (documentation and shell completions) will follow shortly after.

Some work has already begun on this feature in #11059.

Work on this feature was carried out on the [`merge-rm`](killercup/cargo-edit@master...merge-rm) branch of cargo-edit with PRs reviewed by `@epage.` If you are interested in seeing how this feature evolved to better match cargo's internals, you might find the commit history there to be helpful. As this PR is reviewed, changes will be made both here and on that branch, with the commit history being fully maintained on the latter.

`cargo remove` is structured like most other subcommands:

- `src/bin/cargo/commands/remove.rs` contains the cli handling and top-level execution.
- `src/cargo/ops/cargo_remove.rs` contains the implementation of the feature itself.

In order to support this feature, the `remove_from_table` util was added to `util::toml_mut::manifest::LocalManifest`.

Tests are split out into a separate commit to make it easier to review the production code and tests.  Tests have been implemented with `snapbox`, structured similarly to the tests of `cargo add`.

### Prior art

- Python: [`poetry remove`](https://python-poetry.org/docs/cli/#remove)
  - Supports dry run
- JavaScript: [`yarn remove`](https://yarnpkg.com/cli/remove)
  - Supports wildcards
- JavaScript: [`pnpm remove`](https://pnpm.io/cli/remove)
- Go: [`go get`](https://go.dev/ref/mod#go-get)
  - `go get foo@none` to remove
- Julia: [`pkg rm`](https://docs.julialang.org/en/v1/stdlib/Pkg/)
  - Supports `--all` to remove all dependencies
- Ruby: [`bundle remove`](https://bundler.io/v2.2/man/bundle-remove.1.html)
- Dart: [`dart pub remove`](https://dart.dev/tools/pub/cmd/pub-remove)
  - Supports dry run
- Lua: [`luarocks remove`](https://github.com/luarocks/luarocks/wiki/remove)
  - Supports force remove
- .NET: [`Uninstall-Package`](https://docs.microsoft.com/en-us/nuget/reference/ps-reference/ps-ref-uninstall-package)
  - Supports dry run
  - Supports removal of dependencies
  - Supports force remove (disregards dependencies)
- Haxe: [`haxelib remove`](https://lib.haxe.org/documentation/using-haxelib/#remove)
- Racket: [`raco pkg remove`](https://docs.racket-lang.org/pkg/cmdline.html#%28part._raco-pkg-remove%29)
  - Supports dry run
  - Supports force remove (disregards dependencies)
  - Supports demotion to weak dependency (sort of a corollary of force remove)

### Insta-stabilization

In the discussion of `cargo add`'s stabilization story ([Zulip stream](https://rust-lang.zulipchat.com/#narrow/stream/246057-t-cargo/topic/Stablizing.20cargo-add)), it was brought up that the feature might benefit from being insta-stabilized to avoid making the cargo-edit version of the binary hard to access. Since `cargo rm` (from cargo-edit) was renamed to `cargo remove` here, [such a conflict no longer exists](https://crates.io/search?q=cargo%20remove), so this is less of a concern.

Since this feature is already has a had a long run of user testing in cargo-edit and doesn't have unsettled UI questions like cargo-add did, it might still be a candidate for insta-stabilization.

### Deferred work

Necessary future work:

- Add documentation.
- Add shell completions.
- Perform GC on workspace dependencies when they are no longer used (see #8415).
  - This is inspired by a feature from the RFC that was dropped (unused dependencies triggering a warning)
  - This was deferred out to avoid challenges with testing nightly features

It was found in the review of `cargo add` that it was best to defer these first two items to focus the discussion and as there was still behavior churn during the review of cargo-add.

### Future Possibilities

The following are features which we might want to add to `cargo remove` in the future:

- Add a `cargo rm` alias to ease transition for current cargo-edit users
- Automatically convert between dash and underscores in deps: killercup/cargo-edit#690
- Remove unused dependencies: killercup/cargo-edit#415
- Clean up caches: killercup/cargo-edit#647

### Additional information

Fixes #10520.
bors added a commit that referenced this pull request Oct 6, 2022
Import `cargo remove` into cargo

## What does this PR try to resolve?

This PR merges `cargo remove` from [cargo-edit](https://github.com/killercup/cargo-edit) into cargo.

### Motivation

- General approval from community, see #5586 and #10520.
- Satisfying symmetry between add and remove.
- Help users clean up their manifests (for example, when users forget to remove optional dependencies from feature lists).

With #10472, cargo-add was added to cargo. As part of that discussion, it was also proposed that `cargo rm` (now `cargo remove`) eventually be added as well.

### Drawbacks

- Additional code always opens the door for more bugs and features
  - The scope of this command is fairly small though
  - Known bugs and most known features were resolved before this merge proposal

### Behavior

`cargo remove` operates on one or more dependencies from a manifest, removing them from a specified dependencies section (using the same flags as `cargo-add`) and from `[features]` activations if the dependency is optional. Feature lists themselves are not automatically removed when made empty.  Like with cargo-add, the lock file is automatically updated.

Note: like `cargo add`, `cargo remove` refers to dependency names, rather than crate names, which can be different with the presence of the `name` field.

Note: `cargo rm` has been renamed to `cargo remove`, based on prior art and user feedback (see [discussion](#10520)). Although this renaming is arguably an improvement, adding an `rm` alias could make the switch easier for existing users of cargo-edit (at the cost of a naming conflict which would merit insta-stabilization).

#### Help output

<details>

  ```shell
  $ cargo run -- remove --help
  cargo-remove
  Remove dependencies from a Cargo.toml manifest file

  USAGE:
      cargo remove [OPTIONS] <DEP_ID>...

  ARGS:
      <DEP_ID>...    Dependencies to be removed

  OPTIONS:
      -p, --package [<SPEC>...]     Package to remove from
      -v, --verbose                 Use verbose output (-vv very verbose/build.rs output)
          --manifest-path <PATH>    Path to Cargo.toml
          --offline                 Run without accessing the network
      -q, --quiet                   Do not print cargo log messages
          --dry-run                 Don't actually write the manifest
      -Z <FLAG>                     Unstable (nightly-only) flags to Cargo, see 'cargo -Z help' for details
      -h, --help                    Print help information

  SECTION:
          --dev                Remove as development dependency
          --build              Remove as build dependency
          --target <TARGET>    Remove as dependency from the given target platform
  ```

</details>

#### Example usage

```
cargo remove serde
cargo remove criterion httpmock --dev
cargo remove winhttp --target x86_64-pc-windows-gnu
cargo remove --package core toml
```

## How should we test and review this PR?

This is following the pattern from cargo-add which was implemented in three different PRs (implementation, documentation, and completions), in the interest of reducing the focusing discussions in each PR and allowing cargo-add's behavior to settle to avoid documentation churn.

1. #10472
2. #10578
3. #10577

The remaining changes (documentation and shell completions) will follow shortly after.

Some work has already begun on this feature in #11059.

Work on this feature was carried out on the [`merge-rm`](killercup/cargo-edit@master...merge-rm) branch of cargo-edit with PRs reviewed by `@epage.` If you are interested in seeing how this feature evolved to better match cargo's internals, you might find the commit history there to be helpful. As this PR is reviewed, changes will be made both here and on that branch, with the commit history being fully maintained on the latter.

`cargo remove` is structured like most other subcommands:

- `src/bin/cargo/commands/remove.rs` contains the cli handling and top-level execution.
- `src/cargo/ops/cargo_remove.rs` contains the implementation of the feature itself.

In order to support this feature, the `remove_from_table` util was added to `util::toml_mut::manifest::LocalManifest`.

Tests are split out into a separate commit to make it easier to review the production code and tests.  Tests have been implemented with `snapbox`, structured similarly to the tests of `cargo add`.

### Prior art

- Python: [`poetry remove`](https://python-poetry.org/docs/cli/#remove)
  - Supports dry run
- JavaScript: [`yarn remove`](https://yarnpkg.com/cli/remove)
  - Supports wildcards
- JavaScript: [`pnpm remove`](https://pnpm.io/cli/remove)
- Go: [`go get`](https://go.dev/ref/mod#go-get)
  - `go get foo@none` to remove
- Julia: [`pkg rm`](https://docs.julialang.org/en/v1/stdlib/Pkg/)
  - Supports `--all` to remove all dependencies
- Ruby: [`bundle remove`](https://bundler.io/v2.2/man/bundle-remove.1.html)
- Dart: [`dart pub remove`](https://dart.dev/tools/pub/cmd/pub-remove)
  - Supports dry run
- Lua: [`luarocks remove`](https://github.com/luarocks/luarocks/wiki/remove)
  - Supports force remove
- .NET: [`Uninstall-Package`](https://docs.microsoft.com/en-us/nuget/reference/ps-reference/ps-ref-uninstall-package)
  - Supports dry run
  - Supports removal of dependencies
  - Supports force remove (disregards dependencies)
- Haxe: [`haxelib remove`](https://lib.haxe.org/documentation/using-haxelib/#remove)
- Racket: [`raco pkg remove`](https://docs.racket-lang.org/pkg/cmdline.html#%28part._raco-pkg-remove%29)
  - Supports dry run
  - Supports force remove (disregards dependencies)
  - Supports demotion to weak dependency (sort of a corollary of force remove)

### Insta-stabilization

In the discussion of `cargo add`'s stabilization story ([Zulip stream](https://rust-lang.zulipchat.com/#narrow/stream/246057-t-cargo/topic/Stablizing.20cargo-add)), it was brought up that the feature might benefit from being insta-stabilized to avoid making the cargo-edit version of the binary hard to access. Since `cargo rm` (from cargo-edit) was renamed to `cargo remove` here, [such a conflict no longer exists](https://crates.io/search?q=cargo%20remove), so this is less of a concern.

Since this feature is already has a had a long run of user testing in cargo-edit and doesn't have unsettled UI questions like cargo-add did, it might still be a candidate for insta-stabilization.

### Deferred work

Necessary future work:

- Add documentation.
- Add shell completions.
- Perform GC on workspace dependencies when they are no longer used (see #8415).
  - This is inspired by a feature from the RFC that was dropped (unused dependencies triggering a warning)
  - This was deferred out to avoid challenges with testing nightly features

It was found in the review of `cargo add` that it was best to defer these first two items to focus the discussion and as there was still behavior churn during the review of cargo-add.

### Future Possibilities

The following are features which we might want to add to `cargo remove` in the future:

- Add a `cargo rm` alias to ease transition for current cargo-edit users
- Automatically convert between dash and underscores in deps: killercup/cargo-edit#690
- Remove unused dependencies: killercup/cargo-edit#415
- Clean up caches: killercup/cargo-edit#647

### Additional information

Fixes #10520.
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