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local util = require 'lspconfig.util'
local function get_java_bin(config)
local java_bin = vim.tbl_get(config, 'drools', 'java', 'bin')
if not java_bin then
java_bin = vim.env.JAVA_HOME and util.path.join(vim.env.JAVA_HOME, 'bin', 'java') or 'java'
if vim.fn.has 'win32' == 1 then
java_bin = java_bin .. '.exe'
end
end
return java_bin
end
local function get_java_opts(config)
local java_opts = vim.tbl_get(config, 'drools', 'java', 'opts')
return java_opts and java_opts or {}
end
local function get_jar(config)
local jar = vim.tbl_get(config, 'drools', 'jar')
return jar and jar or 'drools-lsp-server-jar-with-dependencies.jar'
end
local function get_cmd(config)
local cmd = vim.tbl_get(config, 'cmd')
if not cmd then
cmd = { get_java_bin(config) }
for _, o in ipairs(get_java_opts(config)) do
table.insert(cmd, o)
end
---@diagnostic disable-next-line:missing-parameter
vim.list_extend(cmd, { '-jar', get_jar(config) })
end
return cmd
end
return {
default_config = {
filetypes = { 'drools' },
root_dir = util.find_git_ancestor,
single_file_support = true,
on_new_config = function(new_config)
new_config.cmd = get_cmd(new_config)
end,
},
docs = {
description = [=[
https://github.com/kiegroup/drools-lsp
Language server for the [Drools Rule Language (DRL)](https://docs.drools.org/latest/drools-docs/docs-website/drools/language-reference/#con-drl_drl-rules).
The `drools-lsp` server is a self-contained java jar file (`drools-lsp-server-jar-with-dependencies.jar`), and can be downloaded from [https://github.com/kiegroup/drools-lsp/releases/](https://github.com/kiegroup/drools-lsp/releases/).
Configuration information:
```lua
-- Option 1) Specify the entire command:
require('lspconfig').drools_lsp.setup {
cmd = { '/path/to/java', '-jar', '/path/to/drools-lsp-server-jar-with-dependencies.jar' },
}
-- Option 2) Specify just the jar path (the JAVA_HOME environment variable will be respected if present):
require('lspconfig').drools_lsp.setup {
drools = { jar = '/path/to/drools-lsp-server-jar-with-dependencies.jar' },
}
-- Option 3) Specify the java bin and/or java opts in addition to the jar path:
require('lspconfig').drools_lsp.setup {
drools = {
java = { bin = '/path/to/java', opts = { '-Xmx100m' } },
jar = '/path/to/drools-lsp-server-jar-with-dependencies.jar',
},
}
```
Neovim does not yet have automatic detection for the `drools` filetype, but it can be added with:
```lua
vim.cmd [[ autocmd BufNewFile,BufRead *.drl set filetype=drools ]]
```
]=],
},
}
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