add 'full' for line_width in diagnostics options (nvim-telescope#2452)

* add 'full' for line_width in diagnostics options

* lowercase documentation entry and change error notify method

* moved line_width options checking

lua/telescope/builtin/__diagnostics.lua

@@ -146,6 +146,14 @@ diagnostics.get = function(opts)
     return
   end
 
+  if type(opts.line_width) == "string" and opts.line_width ~= "full" then
+    utils.notify("builtin.diagnostics", {
+      msg = string.format("'%s' is not a valid value for line_width", opts.line_width),
+      level = "ERROR",
+    })
+    return
+  end
+
   opts.path_display = vim.F.if_nil(opts.path_display, "hidden")
   pickers
     .new(opts, {

lua/telescope/builtin/init.lua

@@ -532,7 +532,7 @@ builtin.lsp_dynamic_workspace_symbols = require_on_exported_call("telescope.buil
 ---@field root_dir string|boolean: if set to string, get diagnostics only for buffers under this dir otherwise cwd
 ---@field no_unlisted boolean: if true, get diagnostics only for listed buffers
 ---@field no_sign boolean: hide DiagnosticSigns from Results (default: false)
----@field line_width number: set length of diagnostic entry text in Results
+---@field line_width string|number: set length of diagnostic entry text in Results. Use 'full' for full untruncated text
 ---@field namespace number: limit your diagnostics to a specific namespace
 ---@field disable_coordinates boolean: don't show the line & row numbers (default: false)
 ---@field sort_by string: sort order of the diagnostics results; see above notes (default: "buffer")

lua/telescope/make_entry.lua

@@ -1167,9 +1167,13 @@ function make_entry.gen_from_diagnostics(opts)
     { remaining = true },
   }
   local line_width = vim.F.if_nil(opts.line_width, 0.5)
+  local line_width_opts = { width = line_width }
+  if type(line_width) == "string" and line_width == "full" then
+    line_width_opts = {}
+  end
   local hidden = utils.is_path_hidden(opts)
   if not hidden then
-    table.insert(display_items, 2, { width = line_width })
+    table.insert(display_items, 2, line_width_opts)
   end
   local displayer = entry_display.create {
     separator = "▏",