Feature: Package Version Management for kpm

[zong-zhe]

Feature Request

Is your feature request related to a problem?

Yes, currently KCL package manager lacks an efficient way to manage different versions of the same package. This makes it difficult for users to install specific versions, upgrade, or downgrade packages.

Describe the feature you'd like

I would like to propose a version management feature for our package manager. This feature should allow users to easily view, install, upgrade, and downgrade different versions of packages. It should also handle dependencies version conflicts between different versions of the same package to ensure that all dependencies are met when installing, upgrading, or downgrading a package.

Pretest

To apply for this mentorship, finish the pre-tests.

• Pre-test link: [LFX PreTest] kcl mod graph to show the dependency graph of KCL package dependencies #263
• Pre-test link: [LFX PreTest] Package version selection strategy research #269

Don't worry that you may not be able to complete all the pretests, you can choose any pretests you can do, and we will consider the final choice according to all your work. You can also try some other non-pretest work, after all, that will help you understand the whole project

Appendix

• kpm download the dependencies here :

  kpm/pkg/client/client.go

  Line 1095 in bd65b2a

  func (c *KpmClient) downloadDeps(deps pkg.Dependencies, lockDeps pkg.Dependencies) (*pkg.Dependencies, error) {

• When kpm downloads dependencies, it recursively adds all the dependencies of the dependencies to the current project. Here:

  kpm/pkg/client/client.go

  Line 1146 in bd65b2a

  for _, d := range newDeps.Deps {

• The Pre-Test [LFX PreTest] kcl mod graph to show the dependency graph of KCL package dependencies #263 can follow this approach

  kpm/pkg/client/client.go

  Line 1095 in bd65b2a

  func (c *KpmClient) downloadDeps(deps pkg.Dependencies, lockDeps pkg.Dependencies) (*pkg.Dependencies, error) {

  , and calculate the dependent graph during the download process.

• This issue can follow this approach

  kpm/pkg/client/client.go

  Line 1095 in bd65b2a

  func (c *KpmClient) downloadDeps(deps pkg.Dependencies, lockDeps pkg.Dependencies) (*pkg.Dependencies, error) {

  , when download different versions of the same package, design a selection strategy, select the appropriate version to download, and report an error if the appropriate version is not found.

• When you design a selection strategy, you can refer to golang mvs.

[octonawish-akcodes]

I am interested in this under lfx

[zong-zhe]

Hi @octonawish-akcodes 😄

Your enthusiasm to participate in the project is quite ahead of time. We appreciate your passion. 👍

However, the selection for the LFX project is still in progress, and we still have some preparations to make. You can refer to the specific timeline here: LFX Project Timeline. We will continue to update some detailed information about the KCL package manager in this issue. You can keep an eye on it. We will contact you after the project starts.

[AkashKumar7902]

Hey, I am too interested in working in this project.

[zong-zhe]

Hi @AkashKumar7902 😄

The selection for the LFX project is still in progress, and we still have some preparations to make. You can refer to the specific timeline here: LFX Project Timeline. We will continue to update some detailed information about the KCL package manager in this issue. You can keep an eye on it.

We warmly welcome your contribution to the KCL project. If you are interested in our project, you can also choose some other issues to work on:

KCL: The KCL Compiler - https://github.com/kcl-lang/kcl/issues
kpm: The KCL Package Management Tool - https://github.com/kcl-lang/kpm/issues

If you have any questions welcome, you can directly raise the issue or initiate a new discussion to discuss with us.
https://github.com/orgs/kcl-lang/discussions 👋

[amands98]

Hello, I'm also interested in working on this issue. We could create something like a KVM (KCL Version Manager) or add a subcommand to the kpm for updating, changing, or downgrading package versions.

[gauriimaheshwarii]

Hi, I would like to work on this issue. I do have some ideas for it, and I'll share them on the discussions page.

[kanha-gupta]

Hi @Peefy @zong-zhe, I am applying for it. If a proposal is required, please let me know :)

[Peefy]

Hello, proposal and PRs are welcome.

[zong-zhe]

Hi @octonawish-akcodes @AkashKumar7902 @amands98 @gauriimaheshwarii @kanha-gupta 😃
Welcome ! I have added some details in this issue to help everyone understand.

[partik03]

Hi @zong-zhe I would like to work on this one during the upcoming LFX term and I will apply for the same in a day or so and currently working on the pretest assigned for this issue.

[AkashKumar7902]

Hey @Peefy @zong-zhe
I have submitted the PR for pretest #264. I am super excited to apply. 😀

[zong-zhe]

Hi @octonawish-akcodes @AkashKumar7902 @amands98 @gauriimaheshwarii @kanha-gupta 😃

I added a new PreTest #269 ，There is no dependency between these pretests, you can choose the PreTest you like to do.