Awesome
coc-solargraph
Ruby language server extension using solargraph for coc.nvim.
Note: remember use fnameescape()
for solargraph uri (solargraph:/
) to open
it by vim command.
Note: solargraph scheme returns html, but vim doesn't handle html, so it's converted to markdown.
Supporting
If you like my extension, consider supporting me on Patreon or PayPal:
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Install
Install solargraph by:
gem install solargraph
In your vim/neovim, run command:
:CocInstall coc-solargraph
Features
Coc.nvim support all features of solargraph
Configuration options
This extension contributes the following settings:
solargraph.trace.server
: default:"off"
Valid options: ["off","messages","verbose"]solargraph.shell
: The shell path used to launch solargraph server, default:null
solargraph.transport
: The type of transport to use., default:"socket"
Valid options: ["socket","stdio","external"]solargraph.promptDownload
: Prompt for download solargraph gem when not found., default:true
solargraph.externalServer
: The host and port to use for external transports. (Ignored for stdio and socket transports.), default:{"host":"localhost","port":7658}
solargraph.commandPath
: Path to the solargraph command. Set this to an absolute path to select from multiple installed Ruby versions., default:"solargraph"
solargraph.useBundler
: Usebundle exec
to run solargraph. (If this is true, the solargraph.commandPath setting is ignored.), default:false
solargraph.bundlerPath
: Path to the bundle executable, defaults to 'bundle', default:"bundle"
solargraph.checkGemVersion
: Automatically check if a new version of the Solargraph gem is available., default:true
solargraph.completion
: Enable completion, default:true
solargraph.hover
: Enable hover, default:true
solargraph.diagnostics
: Enable diagnostics, default:false
solargraph.autoformat
: Enable automatic formatting while typing (WARNING: experimental), default:false
solargraph.formatting
: Enable document formatting, default:false
solargraph.symbols
: Enable symbols, default:true
solargraph.definitions
: Enable definitions (go to, etc.), default:true
solargraph.rename
: Enable symbol renaming, default:true
solargraph.references
: Enable finding references, default:true
solargraph.folding
: Enable folding ranges, default:true
solargraph.logLevel
: Level of debug info to log.warn
is least anddebug
is most., default:"warn"
Valid options: ["warn","info","debug"]
Use command :CocConfig
to open config file.
Transport Options
Extension version 1.0.0 introduces the solargraph.transport
setting with the following options:
socket
: Run a TCP server. This is the default option.stdio
: Run a STDIO server.external
: Connect to an external server instead of starting a new one.
Most users should use the default socket
option or switch to stdio
in case of network issues.
The external
option is intended for cases where the project is hosted in a different environment from the editor,
such as a docker container or a remote server. Users can opt to run a socket server in the remote environment and connect
to it via TCP. Example configuration:
"solargraph.transport": "external",
"solargraph.externalServer": {
"host": "localhost",
"port": 7658
}
Documenting Your Code
Using YARD for inline documentation is highly recommended. Solargraph will use YARD comments to provide the best code completion and API reference it can.
In addition to the standard YARD tags, Solargraph defines a @type
tag for documenting variable types. It works with both
local and instance variables. Example:
# @type [String]
my_variable = some_method_call
my_variable. # <= Hitting crtl-space here will suggest String instance methods
Gem Support
Solargraph is capable of providing code completion and documentation for gems. When your code uses require
to include a gem, its classes and methods become available in completion and intellisense.
You can make sure your gems are available with the commands Build new gem documentation
or Rebuild all gem documentation
in the :CocCommand
list.
Solargraph and Bundler
If your project uses Bundler, the most comprehensive way to use your bundled gems is to bundle Solargraph.
In the Gemfile:
gem 'solargraph', group: :development
Run bundle install
and use bundle exec yard gems
to generate the documentation. This process documents cached or vendored gems, or even gems that are installed from a local path.
In order to access intellisense for bundled gems, you'll need to start the language server with Bundler by setting the solargraph.useBundler
option to true
.
Diagnostics (Linting)
To enable diagnostics, set the solargraph.diagnostics
configuration to true
.
Solargraph uses RuboCop for diagnostics by default. If your project has a .solargraph.yml file, you can configure the diagnostics in its reporters
section. Example:
reporters:
- rubocop
See Solargraph Tips for more information about the .solargraph.yml file.
Use a .rubocop.yml file in your project's root folder to customize the linting rules.
Restarting Solargraph
Some changes you make to a project, such as updating the Gemfile, might require you to restart the Solargraph server.
Instead of reloading restart vim, you can restart coc.nvim by :CocRestart
.
Project Configuration
Solargraph will use the .solargraph.yml file for configuration if it exists in the workspace root. The extension provides
a command to Create a Solargraph config file
, or you can do it from the command line:
$ solargraph config .
The default file should look something like this:
include:
- ./**/*.rb
exclude:
- spec/**/*
This configuration tells Solargraph to parse all .rb files in the workspace excluding the spec folder.
Updating the Core Documentation
The Solargraph gem ships with documentation for Ruby 2.2.2. As of gem version 0.15.0, there's an option to download additional documentation for other Ruby versions from the command line.
$ solargraph list-cores # List the installed documentation versions
$ solargraph available-cores # List the versions available for download
$ solargraph download-core # Install the best match for your Ruby version
$ solargraph clear-cores # Clear the documentation cache
License
MIT