OBS Source Service obs-service-cargo

This is a Rust written variant for https://github.com/openSUSE/obs-service-cargo_vendor and https://github.com/obs-service-cargo_audit.

Important

The original obs-service-cargo_audit is now deprecated as the vendoring process now includes audit.

Important

An informative tutorial for packaging Rust software in openSUSE can be found at https://en.opensuse.org/openSUSE:Packaging_Rust_Software.

How to use OBS Service cargo vendor

Typical Rust projects may have a workspace manifest at the root of their project directory. Others don't and do not really require much intervention.

A good example would be the zellij project. Users will just depend the first Cargo.toml found in that project. Therefore, they do not need to use the cargotoml parameter for the _service file.

<services>
  <service name="download_files" mode="manual" />
  <service name="cargo_vendor" mode="manual">
     <param name="src">zellij-0.37.2.tar.gz</param>
     <param name="compression">zst</param>
     <param name="update">true</param>
  </service>
  <service name="cargo_audit" mode="manual" />
</services>

Accepting risks of RUSTSEC advisories

Sometimes, software dependencies have vulnerabilities or security issues, and it's not that surprising. If you just want to YOLO because this version should now be in openSUSE, you can "accept a risk" of a RUSTSEC ID by adding a new parameter i-accept-the-risk:

<services>
  <service mode="manual" name="download_files" />
  <service name="cargo_vendor" mode="manual">
     <param name="srctar">atuin-*.tar.gz</param>
	 <param name="i-accept-the-risk">RUSTSEC-2022-0093</param>
	 <param name="i-accept-the-risk">RUSTSEC-2021-0041</param>
  </service>
  <service name="cargo_audit" mode="manual" />
</services>

Important

If you are not sure what to do, let a security expert assess and audit it for you by just pushing the new update.

Using cargotoml parameter

Use only cargotoml in situations where you need to also vendor a subcrate. This is useful for certain projects with no root manifest like the warning below.

When adding a cargotoml parameter, make sure it is after the root folder. For example, your project has a root folder named s390-tools, and then you should omit s390-tools and proceed to the files or subfolders next to it. So a manifest file located at s390-tools/rust/utils/Cargo.toml will have the following cargotoml parameter value of rust/utils/Cargo.toml.

Warning

Certain projects may not have a root manifest file, thus, each directory may be a separate subproject e.g. https://github.com/ibm-s390-linux/s390-tools and may need some thinking.

<services>
  <service name="cargo_vendor" mode="manual">
     <param name="srcdir">s390-tools</param>
     <param name="compression">zst</param>
     <param name="cargotoml">rust/utils/Cargo.toml</param>
     <param name="update">true</param>
  </service>
  <service name="cargo_audit" mode="manual" />
</services>

Important

If a project uses a workspace, you don't actually need to do this unless the workspace manifest is part of a subproject.

Once you are ready, run the following command locally:

osc service mr

Then add the generated tarball of vendored dependencies:

osc add vendor.tar.zst

Important

Some Rust software such as the infamous https://github.com/elliot40404/bonk do not have any dependencies so they may not generate a vendored tarball. The service will give you an output of information about it by checking the manifest file.

What is inside vendor.tar.<zst,gz,xz>?

The files inside the vendored tarball contains the following:

• a lockfile Cargo.lock. Sometimes it does not exist if the project directory is super different e.g. flux
• other lockfiles and their respective directories. See more here
• a .cargo/config
• the crates that were fetched during the vendor process.

When extracted, it will have the following paths when extracted.

.
├── .cargo/
│   └── config
├── Cargo.lock
├──.<Path to other Cargo.locks in their respective subcrates/subprojects>
└── vendor/

This means, a %prep section may look like this

%prep
%autosetup -a1

No need to copy a cargo_config or a lockfile to somewhere else or add it as part of the sources in the specfile. They are all part of the vendored tarball now.

Note

If desired, you may use this knowledge for weird projects that have weird build configurations.

About lockfiles

OBS Cargo Vendor does a boring way to check for lockfiles:

1. If a manifest is not a workspace manifest, it's likely the lockfile is in the directory of where the manifest is
2. If a manifest is part or a member of a workspace manifest, then it's likely that the lockfile is on the path of where the workspace manifest is.

So we just eagerly take all manifest paths from the parameters, and just check if there are any lockfiles there. And then we slap their full paths to be part of the vendored tarball. So a path that looks like rust/pv/Cargo.lock may also be reflected in the vendored tarball. Thus, if extracted, it will go to the desired path rust/pv/Cargo.lock from the root folder of the project.

Respecting lockfiles

A new option is added to respect lockfiles. This means that vendored tarballs are expected to have the same metadata inside the Cargo.lock.

Warning

cargo-vendor-filterer is not supported for lockfile validation/verification

How to do multiple vendors

It is possible to do multiple vendored tarballs by using the --tag parameter. This allows you to rename your vendored in various contexts e.g. projects that are not part of one whole workspace. Example:

<services>
  <service name="cargo_vendor" mode="manual">
        <param name="src">s390-tools-2.29.0.tar.gz</param>
        <!-- omit root directory name -->
        <param name="cargotoml">rust/pv/Cargo.toml</param>
        <param name="i-accept-the-risk">RUSTSEC-2023-0044</param>
        <param name="tag">rust-pv</param>
        <param name="update">true</param>
  </service>
  <service name="cargo_vendor" mode="manual">
        <!-- omit root directory name -->
        <param name="src">s390-tools-2.29.0.tar.gz</param>
        <param name="cargotoml">rust/pvsecret/Cargo.toml</param>
        <param name="i-accept-the-risk">RUSTSEC-2023-0044</param>
        <param name="tag">pvsecret</param>
        <param name="update">true</param>
  </service>
  <service name="cargo_vendor" mode="manual">
        <!-- omit root directory name -->
        <param name="src">s390-tools-2.29.0.tar.gz</param>
        <param name="cargotoml">rust/utils/Cargo.toml</param>
        <param name="i-accept-the-risk">RUSTSEC-2023-0044</param>
        <param name="tag">utils</param>
        <param name="update">true</param>
  </service>
  <service name="cargo_audit" mode="manual" />
</services>

This will produce the following tarballs:

• vendor-rust-pv.tar.zst
• vendor-pvsecret.tar.zst
• vendor-utils.tar.zst

Thus, this allows you to have many vendored tarballs by using the --tag parameter.

Warning

As long as the manifest file contains dependencies or the manifest file is a workspace it will produce a vendored tarball. Otherwise, although it is somewhat correct to say vendor-utils.tar.zst should be the produced tarball, in reality, it won't exist because it has NO dependencies after all.

Parameters

OBS Source Service to vendor all crates.io and dependencies for Rust project locally

Usage: cargo_vendor [OPTIONS] --src <SRC> --outdir <OUTDIR>

Options:
      --src <SRC>                  Where to find sources. Source is either a directory or a source tarball AND cannot be both. [aliases: srctar, srcdir]
      --compression <COMPRESSION>  What compression algorithm to use. [default: zst] [possible values: gz, xz, zst]
      --tag <TAG>                  Tag some files for multi-vendor and multi-cargo_config projects.
      --cargotoml <CARGOTOML>      Other cargo manifest files to sync with during vendor
      --update <UPDATE>            Update dependencies or not [default: true] [possible values: true, false]
      --outdir <OUTDIR>            Where to output vendor.tar* and cargo_config
      --color <WHEN>               Whether WHEN to color output or not [default: auto] [possible values: auto, always, never]
  -h, --help                       Print help (see more with '--help')
  -V, --version                    Print version

List of possible scenarios when vendoring fails

• cargo issues. Sometimes deleting ~/.cargo will solve your issues.
• Wrong permissions. You may not have a permission to access a file or folder.
• There are updates of this project. Please call us out on that 🤣

Other utilities

• Bulk Updater (WIP). Allows you to update Rust software packages locally.

Limitations

There may be some corner/edge (whatever-you-call-it) cases that will not work with OBS Service Cargo. Please open a bug report at https://github.com/openSUSE/obs-service-cargo_vendor/issues. We will try to investigate those in the best of our abilities. The goal of this project is to help automate some tasks when packaging Rust software. We won't assume we can automate where we can a locate a project's root manifest file Cargo.toml. Thus, at best, please indicate it with cargotoml parameter. In the mean time, this will work, hopefully, in most projects since most projects have a root manifest file.

Reproducibility

This project does not and will not support reproducible builds as a feature. If you submit a PR to enable those features, we may accept it but we will not maintain or guarantee that it will continue to work in the future.