fix: handling of .xcdatamodeld resources (#875)

Similar to asset catalogs, we want to include all of the files under
`.xcdatamodeld` directories.

---------

Signed-off-by: Brentley Jones <[email protected]>
Co-authored-by: Chuck Grindel <[email protected]>

Author: brentleyjones

swiftpkg/internal/resource_files.bzl

@@ -6,23 +6,24 @@ load("@bazel_skylib//lib:sets.bzl", "sets")
 # For a list of the auto-discovered resource types, see
 # https://github.com/apple/swift-package-manager/blob/main/Sources/PackageLoading/TargetSourcesBuilder.swift#L634-L677
 _XIB_EXTS = ["nib", "xib", "storyboard"]
-_ASSET_CATALOG_EXTS = ["xcassets"]
 _STRING_CATALOG_EXTS = ["xcstrings"]
-_COREDATA_EXTS = ["xcdatamodeld", "xcdatamodel", "xcmappingmodel"]
+_COREDATA_EXTS = ["xcmappingmodel"]
 _METAL_EXTS = ["metal"]
-_ALL_AUTO_DISCOVERED_RES_EXTS = _XIB_EXTS + _ASSET_CATALOG_EXTS + \
-                                _STRING_CATALOG_EXTS + _COREDATA_EXTS + _METAL_EXTS
-_ALL_AUTO_DISCOVERED_RES_EXTS_SET = sets.make(_ALL_AUTO_DISCOVERED_RES_EXTS)
+_ALL_AUTO_DISCOVERED_RES_EXTS_SET = sets.make(
+    _XIB_EXTS + _STRING_CATALOG_EXTS + _COREDATA_EXTS + _METAL_EXTS,
+)
 
 def _is_under_asset_catalog_dir(path):
-    for ext in _ASSET_CATALOG_EXTS:
-        # This won't work for Windows. It is unclear how to determine to proper
-        # separator to use. The bazel-skylib paths.bzl just uses forward slash
-        # (/) without checking.
-        pattern = ".{}/".format(ext)
-        if path.find(pattern) > 0:
-            return True
-    return False
+    # This won't work for Windows. It is unclear how to determine to proper
+    # separator to use. The bazel-skylib paths.bzl just uses forward slash
+    # (/) without checking.
+    return path.find(".xcassets/") > 0
+
+def _is_under_xcdatamodeld_dir(path):
+    # This won't work for Windows. It is unclear how to determine to proper
+    # separator to use. The bazel-skylib paths.bzl just uses forward slash
+    # (/) without checking.
+    return path.find(".xcdatamodeld/") > 0
 
 def _is_auto_discovered_resource(path):
     """Determines whether the specified path points to an auto-discoverable \
@@ -43,7 +44,7 @@ def _is_auto_discovered_resource(path):
     ext = ext_with_dot[1:] if ext_with_dot != "" else ""
     return sets.contains(_ALL_AUTO_DISCOVERED_RES_EXTS_SET, ext) or \
            _is_under_asset_catalog_dir(path) or \
-           False
+           _is_under_xcdatamodeld_dir(path)
 
 resource_files = struct(
     is_auto_discovered_resource = _is_auto_discovered_resource,

swiftpkg/tests/resource_files_tests.bzl

@@ -10,15 +10,19 @@ def _is_auto_discovered_resource_test(ctx):
         struct(msg = "nib", path = "foo.nib", exp = True),
         struct(msg = "xib", path = "foo.xib", exp = True),
         struct(msg = "storyboard", path = "foo.storyboard", exp = True),
-        struct(msg = "xcassets dir", path = "foo.xcassets", exp = True),
+        struct(msg = "xcassets dir", path = "foo.xcassets", exp = False),
         struct(
             msg = "file under xcassets dir",
             path = "foo.xcassets/bar.png",
             exp = True,
         ),
         struct(msg = "xcstrings", path = "foo.xcstrings", exp = True),
-        struct(msg = "xcdatamodeld", path = "foo.xcdatamodeld", exp = True),
-        struct(msg = "xcdatamodel", path = "foo.xcdatamodel", exp = True),
+        struct(msg = "xcdatamodeld", path = "foo.xcdatamodeld", exp = False),
+        struct(
+            msg = "content under .xcdatamodeld",
+            path = "foo.xcdatamodeld/bar.xcdatamodel/content",
+            exp = True,
+        ),
         struct(msg = "xcmappingmodel", path = "foo.xcmappingmodel", exp = True),
         struct(msg = "metal", path = "foo.metal", exp = True),
         struct(msg = "swift", path = "foo.swift", exp = False),