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Hello, The current package guide for cargo gives you only the git index, with the HTTP Index stabilized being used as default for crates.io and being better for most use-cases. However, it's not documented that gitea supports the sparse spec, and it does not require the _crates-index git repo for the sparse api. I personally think we should push users to use the sparse instead of the git repository. (Even let users disable crates-index repos if they only want to use sparse)
113 lines
3.4 KiB
Markdown
113 lines
3.4 KiB
Markdown
---
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date: "2022-11-20T00:00:00+00:00"
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title: "Cargo Package Registry"
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slug: "cargo"
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sidebar_position: 5
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draft: false
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toc: false
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menu:
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sidebar:
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parent: "packages"
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name: "Cargo"
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sidebar_position: 5
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identifier: "cargo"
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---
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# Cargo Package Registry
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Publish [Cargo](https://doc.rust-lang.org/stable/cargo/) packages for your user or organization.
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## Requirements
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To work with the Cargo package registry, you need [Rust and Cargo](https://www.rust-lang.org/tools/install).
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Cargo stores information about the available packages in a package index stored in a git repository.
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This repository is needed to work with the registry.
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The following section describes how to create it.
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## Index Repository
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Cargo stores information about the available packages in a package index stored in a git repository.
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In Gitea this repository has the special name `_cargo-index`.
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After a package was uploaded, its metadata is automatically written to the index.
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The content of this repository should not be manually modified.
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The user or organization package settings page allows to create the index repository along with the configuration file.
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If needed this action will rewrite the configuration file.
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This can be useful if for example the Gitea instance domain was changed.
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If the case arises where the packages stored in Gitea and the information in the index repository are out of sync, the settings page allows to rebuild the index repository.
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This action iterates all packages in the registry and writes their information to the index.
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If there are lot of packages this process may take some time.
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## Configuring the package registry
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To register the package registry the Cargo configuration must be updated.
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Add the following text to the configuration file located in the current users home directory (for example `~/.cargo/config.toml`):
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```
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[registry]
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default = "gitea"
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[registries.gitea]
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index = "sparse+https://gitea.example.com/api/packages/{owner}/cargo/" # Sparse index
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# index = "https://gitea.example.com/{owner}/_cargo-index.git" # Git
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# [net]
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# git-fetch-with-cli = true
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```
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| Parameter | Description |
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| --------- | ----------- |
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| `owner` | The owner of the package. |
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If the registry is private or you want to publish new packages, you have to configure your credentials.
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Add the credentials section to the credentials file located in the current users home directory (for example `~/.cargo/credentials.toml`):
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```
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[registries.gitea]
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token = "Bearer {token}"
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```
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| Parameter | Description |
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| --------- | ----------- |
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| `token` | Your [personal access token](development/api-usage.md#authentication) |
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## Git vs Sparse
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Currently, cargo supports two ways for fetching crates in a registry: Git index & sparse index.
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Sparse index is the newest method and offers better performance when updating crates compared to git.
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Since Rust 1.68, sparse is the default method for crates.io.
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## Publish a package
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Publish a package by running the following command in your project:
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```shell
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cargo publish
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```
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You cannot publish a package if a package of the same name and version already exists. You must delete the existing package first.
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## Install a package
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To install a package from the package registry, execute the following command:
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```shell
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cargo add {package_name}
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```
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| Parameter | Description |
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| -------------- | ----------- |
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| `package_name` | The package name. |
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## Supported commands
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```
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cargo publish
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cargo add
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cargo install
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cargo yank
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cargo unyank
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cargo search
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```
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