Java/Kotlin: prepare for internal bazel packaging

java/downgrades/BUILD.bazel

@@ -0,0 +1,12 @@
+load("@rules_pkg//:mappings.bzl", "pkg_files", "strip_prefix")
+
+pkg_files(
+    name = "downgrades",
+    srcs = glob(
+        ["**"],
+        exclude = ["BUILD.bazel"],
+    ),
+    prefix = "downgrades",
+    strip_prefix = strip_prefix.from_pkg(),
+    visibility = ["//visibility:public"],
+)

java/kotlin-extractor/BUILD.bazel

@@ -178,4 +178,13 @@ _resources = [
         actual = _common_extractor_name_prefix,
         visibility = ["//visibility:public"],
     ),
+    filegroup(
+        name = "many",
+        srcs = ["%s-%s-%s" % (
+            _common_extractor_name_prefix,
+            variant,
+            version,
+        ) for variant in ("standalone", "embeddable") for version in VERSIONS],
+        visibility = ["//visibility:public"],
+    ),
 ) if not _for_embeddable else None

misc/bazel/internal/git_lfs_smudge.py

@@ -23,7 +23,10 @@ for src in sources:
             lfs_pointer = input.read()
             rel_src = src.relative_to(source_dir).as_posix()
             with open(src.name, 'wb') as output:
-                subprocess.run(["git", "-c", f"lfs.fetchinclude={rel_src}", "lfs", "smudge", "--", rel_src],
+                subprocess.run(
-                               input=lfs_pointer, stdout=output, check=True, cwd=source_dir)
+                    ["git",
+                     "-c", f"lfs.fetchinclude={rel_src}", "-c", "lfs.fetchexclude=",
+                     "lfs", "smudge", "--", rel_src],
+                    input=lfs_pointer, stdout=output, check=True, cwd=source_dir)
             continue
     pathlib.Path(src.name).symlink_to(src)