add error if the lib dir is included in the sources (v10.1) (#6055)

* add error if the lib dir is included in the sources

* update CHANGELOG.md

Author: aspeddro

CHANGELOG.md

@@ -14,6 +14,7 @@
 
 #### :bug: Bug Fix
 - Fix implementation of directives https://github.com/rescript-lang/rescript-compiler/pull/6052
+- Fix issue if the `lib` dir is included in the sources of bsconfig.json https://github.com/rescript-lang/rescript-compiler/pull/6055
 
 #### :rocket: New Feature
 - Add support for toplevel `await` https://github.com/rescript-lang/rescript-compiler/pull/6054

jscomp/bsb/bsb_parse_sources.ml

@@ -298,6 +298,9 @@ and parsing_single_source ({ package_kind; is_dev; cwd } as cxt)
           let dir =
             match map.?(Bsb_build_schemas.dir) with
             | Some (Str { str }) ->
+                if str = Literals.library_file then
+                    Bsb_exception.config_error x (Printf.sprintf "dir field should be different from `%s`" Literals.library_file)
+                else
                 Ext_path.simple_convert_node_path_to_os_path str
             | Some x ->
                 Bsb_exception.config_error x "dir expected to be a string"

lib/4.06.1/rescript.ml

@@ -10333,6 +10333,9 @@ and parsing_single_source ({ package_kind; is_dev; cwd } as cxt)
           let dir =
             match map.?(Bsb_build_schemas.dir) with
             | Some (Str { str }) ->
+                if str = Literals.library_file then
+                    Bsb_exception.config_error x (Printf.sprintf "dir field should be different from `%s`" Literals.library_file)
+                else
                 Ext_path.simple_convert_node_path_to_os_path str
             | Some x ->
                 Bsb_exception.config_error x "dir expected to be a string"