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lsp/preset/tailwind-language-server: smarter root detection #1694

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74 changes: 49 additions & 25 deletions modules/plugins/lsp/presets/tailwindcss-language-server.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
inherit (lib.modules) mkIf;
inherit (lib.nvim.types) mkLspPresetEnableOption;
inherit (lib.generators) mkLuaInline;
inherit (lib.nvim.lua) toLuaObject;

cfg = config.vim.lsp.presets.tailwindcss-language-server;

Expand Down Expand Up @@ -110,31 +111,54 @@ in {
};
};
workspace_required = true;
root_dir = mkLuaInline ''
function(bufnr, on_dir)
local root_files = {
-- Generic
'tailwind.config.js',
'tailwind.config.cjs',
'tailwind.config.mjs',
'tailwind.config.ts',
'postcss.config.js',
'postcss.config.cjs',
'postcss.config.mjs',
'postcss.config.ts',
-- Django
'theme/static_src/tailwind.config.js',
'theme/static_src/tailwind.config.cjs',
'theme/static_src/tailwind.config.mjs',
'theme/static_src/tailwind.config.ts',
'theme/static_src/postcss.config.js',
}
local fname = vim.api.nvim_buf_get_name(bufnr)
root_files = util.insert_package_json(root_files, 'tailwindcss', fname)
root_files = util.root_markers_with_field(root_files, { 'mix.lock', 'Gemfile.lock' }, 'tailwind', fname)
on_dir(vim.fs.dirname(vim.fs.find(root_files, { path = fname, upward = true })[1]))
end
'';
root_dir = let
strong = [
"tailwind.config.js"
"tailwind.config.cjs"
"tailwind.config.mjs"
"tailwind.config.ts"
"theme/static_src/tailwind.config.js"
"theme/static_src/tailwind.config.cjs"
"theme/static_src/tailwind.config.mjs"
"theme/static_src/tailwind.config.ts"
];
weak = [
"postcss.config.js"
"postcss.config.cjs"
"postcss.config.mjs"
"postcss.config.ts"
"theme/static_src/postcss.config.js"
];
in
mkLuaInline ''
function(bufnr, on_dir)
local fname = vim.api.nvim_buf_get_name(bufnr)

local strong_match = vim.fs.find(${toLuaObject strong}, { path = fname, upward = true })[1]
if strong_match then
on_dir(vim.fs.dirname(strong_match))
return
end

local weak_matches = vim.fs.find(${toLuaObject weak}, { path = fname, upward = true, limit = math.huge })
for _, match in ipairs(weak_matches) do
local ok, lines = pcall(vim.fn.readfile, match)
if ok and table.concat(lines, '\n'):find('tailwindcss', 1, true) ~= nil then
on_dir(vim.fs.dirname(match))
return
end
end

local root_files = {}
root_files = util.insert_package_json(root_files, 'tailwindcss', fname)
root_files = util.root_markers_with_field(root_files, { 'mix.lock', 'Gemfile.lock' }, 'tailwind', fname)

local fallback_match = vim.fs.find(root_files, { path = fname, upward = true })[1]
if fallback_match then
on_dir(vim.fs.dirname(fallback_match))
end
end
'';

before_init = mkLuaInline ''
function(_, config)
Expand Down
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