feat: register package aliases (#182)

lua/mason-lspconfig/init.lua

@@ -24,6 +24,13 @@ function M.setup(config)
         require "mason-lspconfig.ensure_installed"()
     end
 
+    local registry = require "mason-registry"
+    if registry.register_package_aliases then
+        registry.register_package_aliases(_.map(function(server_name)
+            return { server_name }
+        end, require("mason-lspconfig.mappings.server").package_to_lspconfig))
+    end
+
     require "mason-lspconfig.api.command"
 end
 

tests/helpers/lua/test_helpers.lua

@@ -16,6 +16,25 @@ function async_test(suspend_fn)
     end
 end
 
+local TableMock = {}
+TableMock.__index = TableMock
+
+function TableMock.new(tbl, key)
+    return setmetatable({
+        tbl = tbl,
+        key = key,
+    }, TableMock)
+end
+
+function TableMock:apply(value)
+    self.original_value = self.tbl[self.key]
+    self.tbl[self.key] = value
+end
+
+function TableMock:revert()
+    self.tbl[self.key] = self.original_value
+end
+
 -- selene: allow(incorrect_standard_library_use)
 mockx = {
     just_runs = function() end,
@@ -29,6 +48,12 @@ mockx = {
             error(exception, 2)
         end
     end,
+    table = function(tbl, key, new_value)
+        local mock = TableMock.new(tbl, key)
+        mock:apply(new_value)
+        assert:add_spy(mock)
+        return mock
+    end,
 }
 
 ---@param package_name string

tests/mason-lspconfig/setup_spec.lua

@@ -225,6 +225,24 @@ describe("mason-lspconfig setup", function()
 
         assert.same({ name = "dummylsp", cmd = { "user-cmd" } }, config)
     end)
+
+    it("should set up package aliases", function()
+        stub(registry, "register_package_aliases")
+
+        local mapping_mock = mockx.table(require "mason-lspconfig.mappings.server", "package_to_lspconfig", {
+            ["rust-analyzer"] = "rust_analyzer",
+            ["typescript-language-server"] = "tsserver",
+        })
+
+        mason_lspconfig.setup {}
+
+        assert.spy(registry.register_package_aliases).was_called(1)
+        assert.spy(registry.register_package_aliases).was_called_with {
+            ["rust-analyzer"] = { "rust_analyzer" },
+            ["typescript-language-server"] = { "tsserver" },
+        }
+        mapping_mock:revert()
+    end)
 end)
 
 describe("mason-lspconfig setup_handlers", function()

vim.yml

@@ -31,6 +31,11 @@ globals:
     mockx.returns:
         args:
             - type: any
+    mockx.table:
+        args:
+            - type: table
+            - type: string
+            - type: any
 
     describe:
         args: