lyu571/terraform-lsp

Language Server Protocol for Terraform

Terraform LSP

This is LSP (Language Server Protocol) for Terraform

IMPORTANT: Currently there are two Terraform LSP repositories one of which is this repository and one of which is terraform-ls. Terraform-LS also contains details about this repository as well.

Current Focus: Terraform State Reading

The aim to have a unified lsp for terraform in the future, but for now there is two concurrent development with collabration to each other, this repo is aim for more experimental features, and the terraform-ls is aim for stableness

NOTE: This is first stage of the plugin, so is experimental

• Terraform LSP
  • Release
  • Building
    • Native
    • Nixpkgs
  • Features
  • Todo
  • LSP Support Table
  • Supported Editors
  • Bugs

Release

Release can be found here

Building

Requirement

it will need Go 1.14+

Native

1. Download a release or clone the repository
2. Run these commands from the terraform-lsp directory

GO111MODULE=on go mod download # Download the modules for the project
make      # Build the project. Alternatively run "go build"
make copy # Install the project

you may also specify a path to your preferred bin directory with the DST parameter

make copy DST="$your_preferred_bin_path" # Install the project

Nixpkgs

• install nixpkgs
• nix-build

Features

• Variables complex completion (infinite nesting type)
• Provider config completion
• Resource (with infinite block, looking at you Kubernetes provider ;) ) completion
• Data source completion
• Dynamic Error Checking (Terraform and HCL checks)
• Communication using provider binary (so it will support any provider as long as is built with terraform 0.12 SDK)
• Module nesting (infinite as well) variable completion

Todo

All Todos are listed here

LSP Support Table

Feature	Description	Status
completion	Autocompletion	Supported for Resources/Data Sources/Variables/Locals, need support for nested interpolation
publishDiagnostics	Error checking	Supported, need to check for all possible errors
hover	Hover on function/variables to get result	Need to Implement
signatureHelp	Get docs for resources/data sources name and params	Need to Implement
declaration	Go to Declaration	Need to Implement
references	Find all references	Need to Implement
implementation	Find all implementation	Need to Implement (not sure if is applicable)
documentHighlight	Resources/data sources/variables highlight	Need to Implement
documentSymbol	Resources/data sources/variables symbols	Need to Implement
codeAction	Refactoring actions	Need to Implement
codeLens	VSCode's code lens	Need to Implement
formatting	Formatting	Need to Implement
rename	Rename action	Need to Implement
workspace	Workspace support	Need to Implement

Supported Editors

Editor	Status	Docs
Visual Studio Code	Supported	Link
Atom	Supported	Link
Vim	Supported	Link
Sublime Text 3	Supported	Link
IntelliJ	Supported	Link
Emacs	Supported	Link

NOTE: Please create a issue for a editor that you want to test for

Bugs

• Order of completion items
• Issue with block
• Issue on Terraform v0.15 due to different behaviour on where it store its provider json

Credits

• LSP structure using Sourcegraph's go-lsp
• JSONRPC2 using JRPC2
• provider communication is mostly adapted from tfschema
• awilkins for adding GitHub actions

License