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· 4 min read

KCL is an open-source configuration and policy language hosted by the Cloud Native Computing Foundation (CNCF) as a Sandbox Project. Built on a foundation of constraints and functional programming principles, KCL enhances the process of writing complex configurations, particularly in cloud-native environments. By leveraging advanced programming language techniques, KCL promotes improved modularity, scalability, and stability in configuration management. It simplifies logic writing, offers easy-to-use automation APIs, and seamlessly integrates with existing systems.

This section will update the KCL language community's latest news, including features, website updates, and the latest community news, helping everyone better understand the KCL community!

KCL Website: https://kcl-lang.io

Special Thanks​

Special thanks to all community contributors over the past two weeks. The following list is in no particular order:

  • Thanks to @liangyuanpeng for feedback and test case completion for KCL bugs. 🙌
  • Thanks to @MatisseB for contributing to the KCL PROTOC environment variable setting feature. 🙌
  • Thanks to @DavidChevallier for contributing to the KCL argo-cd third-party library. 🙌
  • Thanks to @kukacz for contributing to the KCL cluster-api-provider-metal3, cluster-api-provider-gcp, and other third-party libraries. 🙌
  • Thanks to @dennybaa for contributing to the victoria-metrics-operator, istio, and other third-party libraries. 🙌
  • Thanks to @ihor-hrytskiv for contributing to the jsonpatch third-party library. 🙌
  • Thanks to @XiaoK29 for contributing to the kcl-go SDK. 🙌
  • Thanks to @patrycju, @kukacz, @dennybaa, @LinYunling, @liangyuanpeng, @riven-blade, @bozaro, @MatisseB, @ealap, @tvandinther, @leon-andria, @Wes McNamee, @Uladzislau Maher, @M Slane, @Tom van Dinther, @Lukáš Kubín, @Mohamed Asif, @Sergei Iakovlev, @Korada Vishal, @Asish Kumar and others for their invaluable suggestions and feedback during the recent period of using KCL 🙌

Overview​

Thanks to all contributors for their outstanding work over the past two weeks (2024.06.12 - 2024.06.27). Here is an overview of the key content:

📦️ Modules Updates

  • Added the cluster-api package version 0.1.1, which supports managing clusters through the cluster API.
  • Added the cluster-api-provider-metal3 package, which supports managing Metal3 through the cluster API.
  • Added the cluster-api-provider-gcp package, which supports managing GCP through the cluster API.
  • Added the cluster-api-addon-provider-helm package, which supports managing helm charts through Addon.
  • Added the cluster-api-addon-provider-aws package, which supports managing AWS through the cluster API.
  • Added the cluster-api-provider-azure package, which supports managing Azure through the cluster API.
  • Bump the k8s package version to 1.30.
  • Bump the argo-cd package version to 0.1.1.
  • Bump the victoria-metrics-operator package version to 0.45.1, add some check statement prompt information.
  • Bump the istio package version to 1.21.2, adjust some check rules, and add documentation.
  • Bump the jsonpatch package version to 0.0.5, support rfc6901Decode.

🏄 Language Updates

  • Added centos7 amd64 build environment.
  • Fix some typos in the code comments.
  • Fix the issue of the cache of file.modpath and file.workdir causing performance degradation.
  • Fix the issue some of the schema instance types with inheritance structures are recognized incorrectly.
  • Fix the repeated execution of the branch part in multiple if statements.
  • Fix the environment variable PROTOC setting issue.

💻 IDE Updates

  • Added support for go to def of the schema parameter and schema return value in lambda expressions.
  • Added support for the completion of importing internal packages in the IDE.
  • Added support for the completion of the schema attributes in the IDE.
  • Fix the issue of missing auto-completion prompts in expressions.
  • Fix the issue of the kcl.mod modification not taking effect due to the cache.
  • Fix the issue of the IDE incorrectly prompting the type of the schema attribute.
  • Fix the long string highlighting issue.

📬️ Toolchain Updates

  • Fix the issue of replacing default third-party dependencies with oci dependencies in kcl.mod for kpm.
  • kcl-openapi use case update, fixed some compilation errors, and added a check for the existence of optional attribute values when adding schema.

⛵️ API Updates

  • Fix the issue of inserting configuration errors with the OverrideFile API.
  • ListVariable API supports compile-time configuration merging.

🔥 SDK Updates

  • go SDK supports importing schema from go.
  • go SDK cleans up some deprecated code and adds some tests.
  • Java SDK aligns with API updates.

📚️ Documentation Updates

  • Added the kcl doc generation html/markdown file format error solution.
  • Added the solution to the compilation error caused by the package name in the import statement containing -.
  • Adjusted the document use case to adapt to the update.

Resources​

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· 4 min read

KCL is an open-source configuration and policy language hosted by the Cloud Native Computing Foundation (CNCF) as a Sandbox Project. Built on a foundation of constraints and functional programming principles, KCL enhances the process of writing complex configurations, particularly in cloud-native environments. By leveraging advanced programming language techniques, KCL promotes improved modularity, scalability, and stability in configuration management. It simplifies logic writing, offers easy-to-use automation APIs, and seamlessly integrates with existing systems.

This section will update the KCL language community's latest news, including features, website updates, and the latest community news, helping everyone better understand the KCL community!

KCL Website: https://kcl-lang.io

Special Thanks​

Special thanks to all community contributors over the past two weeks. The following list is in no particular order:

  • Thanks to @shruti2522 for contributions to the KCL IDE string union type variable completion and function symbol highlighting 🙌
  • Thanks to @ihor-hrytskiv for contributions to the jsonpatch module 🙌
  • Thanks to @selfuryon for contributions to the KCL Nix Package 🙌
  • Thanks to @nestoralonso for contributions to the ArgoCD KCL plugin 🙌
  • Thanks to @Vishalk91-4 for contributions to the KCL tree-sitter-grammar 🙌
  • Thanks to @Daksh-10 for contributions to the KCL tree-sitter-grammar 🙌
  • Thanks to @officialasishkumar for contributions to the kcl.mod file serialization/deserialization API 🙌
  • Thanks to @d4v1d03 for contributions to the KCL FAQ documentation 🙌
  • Thanks to @liangyuanpeng, @atelsier, @mproffitt, @steeling, @eshepelyuk, @SjuulJanssen, @riven-blade, @excalq, @Wck-iipi, @Yvan da Silva, @Hai Wu, and others for their invaluable suggestions and feedback during the recent period of using KCL 🙌

Overview​

Thanks to all contributors for their outstanding work over the past two weeks (2024.05.30 - 2024.06.12). Here is an overview of the key content:

📦️ Modules Updates

The jsonpatch library released version 0.0.4, fixing unexpected errors in the set_obj function. You can add the latest jsonpatch dependency using kcl mod add jsonpatch. Usage example:

import jsonpatch as p

test_json_patch = lambda {
    data = {
        "firstName": "John",
        "lastName": "Doe",
        "age": 30,
        "address": {
            "streetAddress": "1234 Main St",
            "city": "New York",
            "state": "NY",
            "postalCode": "10001"
        },
        "phoneNumbers": [
            {
                "type": "home",
                "number": "212-555-1234"
            },
            {
                "type": "work",
                "number": "646-555-5678"
            }
        ]
    }
    phoneNumbers0type: str = p.get_obj(data, "phoneNumbers/0/type")
    addressCity: str = p.get_obj(data, "address/city")
    newType = p.set_obj(data, "phoneNumbers/0/type", "school")
    newState = p.set_obj(data, "address/state", "WA")
    assert phoneNumbers0type == "home"
    assert addressCity == "New York"
    assert newType["phoneNumbers"][0]["type"] == "school"
    assert newState["address"]["state"] == "WA"
}

test_json_patch()

🏄 Language Updates

  • Fixed an error with the schema insertion operator += during configuration merging.
  • Improved error messages for undefined variables in multi-line string interpolation.

💻 IDE Updates

  • Added highlighting support for kcl.mod and kcl.mod.lock files.
  • Added support for restarting the kcl-language-server via VS Code Command.
  • Improved messaging when the kcl-language-server is not found.
  • Added member completion for string union types.
  • Added function symbol highlighting to differentiate between normal variables and function variables.

📬️ Toolchain Updates

  • kcl import tool now supports conversion from toml to KCL configuration.
  • kcl import tool now supports YAML Stream format input and conversion to KCL configuration.
  • kcl run now supports toml format output.
  • kcl run and kcl mod commands now support the -q flag to disable extra message output.
  • kcl mod add command improves the downloading process to prevent errors caused by unexpected interruptions.
  • kcl mod add command supports adding dependencies from various OCI and Git sources.

⛵️ API Updates

  • Added support for prototext format and KCL schema output to KCL configuration.
  • Added support for serializing arbitrary Go types to KCL configuration.
  • ListVariables API now supports multiple file input and configuration merge output.

🔥 SDK Updates

Resources​

❤️ See here to join us!

For more resources, please refer to