Merge pull request #38894 backports

runtime/doc/news.txt

@@ -65,6 +65,7 @@ LSP
 LUA
 
 • Renamed `vim.diff` to `vim.text.diff`.
+• Added `__eq` metamethod to |vim.VersionRange|.
 
 OPTIONS
 
@@ -301,6 +302,9 @@ LUA
 • EXPERIMENTAL: |vim.pos|, |vim.range| provide Position/Range abstraction.
 • |vim.filetype.inspect()| returns a copy of the internal tables used for
   filetype detection.
+• Added `__eq` metamethod to |vim.VersionRange|. 2 distinct but representing
+the same range instances now compare equal.
+
 
 OPTIONS
 

runtime/lua/vim/filetype.lua

@@ -103,6 +103,41 @@ function M._nextnonblank(bufnr, start_lnum)
   return nil, nil
 end
 
+--- Gets a best-effort set of all "known" filetypes, discovered by:
+--- - `getcompletion()`
+--- - `vim.filetype` internal registry
+--- @return table<string,true>
+function M._get_known_filetypes()
+  local known = {} --- @type table<string,true>
+  for _, ft in ipairs(vim.fn.getcompletion('', 'filetype')) do
+    known[ft] = true
+  end
+  local registry = vim.filetype.inspect()
+
+  local function add_filetype(value)
+    local filetype = type(value) == 'table' and value[1] or value
+    if type(filetype) == 'string' then
+      known[filetype] = true
+    end
+  end
+
+  for _, value in pairs(registry.extension) do
+    add_filetype(value)
+  end
+
+  for _, value in pairs(registry.filename) do
+    add_filetype(value)
+  end
+
+  for _, mappings in pairs(registry.pattern) do
+    for _, value in pairs(mappings) do
+      add_filetype(value)
+    end
+  end
+
+  return known
+end
+
 do
   --- @type table<string,vim.regex>
   local regex_cache = {}

runtime/lua/vim/lsp/health.lua

@@ -212,38 +212,10 @@ local function check_position_encodings()
   end
 end
 
-local function get_known_filetypes()
-  local known = vim.fn.getcompletion('', 'filetype')
-  local registry = vim.filetype.inspect()
-
-  local function add_filetype(value)
-    local filetype = type(value) == 'table' and value[1] or value
-    if type(filetype) == 'string' and not vim.list_contains(known, filetype) then
-      known[#known + 1] = filetype
-    end
-  end
-
-  for _, value in pairs(registry.extension) do
-    add_filetype(value)
-  end
-
-  for _, value in pairs(registry.filename) do
-    add_filetype(value)
-  end
-
-  for _, mappings in pairs(registry.pattern) do
-    for _, value in pairs(mappings) do
-      add_filetype(value)
-    end
-  end
-
-  return known
-end
-
 local function check_enabled_configs()
   vim.health.start('vim.lsp: Enabled Configurations')
 
-  local known_filetypes = get_known_filetypes()
+  local known_filetypes = vim.filetype._get_known_filetypes()
 
   for name in vim.spairs(vim.lsp._enabled_configs) do
     local config = vim.lsp.config[name]
@@ -276,7 +248,7 @@ local function check_enabled_configs()
           for _, filetype in
             ipairs(v --[[@as string[] ]])
           do
-            if not vim.list_contains(known_filetypes, filetype) then
+            if not known_filetypes[filetype] then
               report_warn(
                 ("Unknown filetype '%s' (Hint: filename extension != filetype)."):format(filetype)
               )

runtime/lua/vim/version.lua

@@ -273,6 +273,9 @@ end
 
 local range_mt = {
   __index = VersionRange,
+  __eq = function(self, other)
+    return self.to == other.to and self.from == other.from
+  end,
   __tostring = function(self)
     if not self.to then
       return '>=' .. tostring(self.from)

test/functional/lua/version_spec.lua

@@ -118,6 +118,18 @@ describe('version', function()
       end)
     end
 
+    it('__eq', function()
+      local range1 = vim.version.range('1.2.3 - 2.3.4')
+      local range2 = vim.version.range('1.2.3 - 2.3.4')
+      local range3 = vim.version.range('<=1.2.3')
+      local range4 = vim.version.range('1.2.3')
+      assert(range1 == range1)
+      assert(range1 == range2)
+      assert(range1 ~= range3)
+      assert(range1 ~= range4)
+      assert(range3 ~= range4)
+    end)
+
     it('handles prerelease', function()
       assert(not vim.version.range('1.2.3'):has('1.2.3-alpha'))
       assert(vim.version.range('1.2.3-alpha'):has('1.2.3-alpha'))