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Jsonnet Language Server and Editor Clients

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jsonnet-lsp

Jsonnet Language Server

Features

  • Syntax Highliting and Basic Editing features
  • Snippets
  • Linting and Syntax Errors
  • Formatting
  • Delta text update support for efficient editing
  • Designed to remain performant in large repos with many files open
  • Type and Value Deduction
    • Supports imported files
    • Able to follow variables, function return values, and array/object indexing
  • Autocomplete
    • Stdlib support with documentation and typed signatures
    • Scoped variable completion
    • Dotted autocomplete
    • Template object field completion
    • Import path completion for files
  • Go to Definition
    • Can follow definitions in other files, including json files
  • Hover Information
  • Function Signature Help
  • AST Recovery
    • The LSP is able recover common syntax issues while typing (like a missing semicolon) for a smoother experience

Development

  • To develop the LSP, change the jsonnet.lsp.binaryPath setting to the runlsp.sh script in the root. Reloading the LSP in vscode (shift+cmd+p -> jsonnet: reload language server) will rebuild the server.
  • To develop the client, open editor/code in vscode, and hit F5 to open a debug build of the client. Generally developing the LSP does not need a debug version of the client.

Release

  • Github actions are setup to publish to OpenVSX automatically when a release is created
  • The LSP binaries are bundled into the .vsix extension, to help reduce bugs from version skew and simplify installation.