Revert "aliPublish: bulk-list dist-runtime to avoid per-version S3 calls"

This reverts commit c0f8824.

Author: singiamtel

publish/aliPublishS3

@@ -636,24 +636,6 @@ def sync(pub, architectures, s3Client, bucket, baseUrl, basePrefix, rules,
         if nv
     )
 
-    # Bulk-list all dist-runtime entries upfront to avoid one S3 call per
-    # package version in process_package below.
-    t_runtime_start = time()
-    _rt_prefix = "%s/%s/dist-runtime/" % (basePrefix, arch)
-    _rt_prefix_len = len(_rt_prefix)
-    runtimeDepsCache: dict = {}
-    for _page in s3Client.get_paginator("list_objects_v2").paginate(
-        Bucket=bucket, Prefix=_rt_prefix,
-    ):
-      for _item in _page.get("Contents", ()):
-        if _item["Key"].endswith("/"):
-          continue
-        _pkg, _ver_dir, _dep_file = _item["Key"][_rt_prefix_len:].split("/", 2)
-        runtimeDepsCache.setdefault((_pkg, _ver_dir), []).append(
-            {"name": _dep_file, "type": "file"}
-        )
-    info("TIMING: %s: bulk-listing dist-runtime took %.1fs", arch, time() - t_runtime_start)
-
     # Get versions for all valid packages and filter them according to the rules
     def process_package(pkgName):
       result = []
@@ -684,13 +666,14 @@ def sync(pub, architectures, s3Client, bucket, baseUrl, basePrefix, rules,
 
         # At this point we have filtered in the package: let's see its dependencies!
         # Note that a package always depends on itself (list cannot be empty).
-        runtimeDeps = runtimeDepsCache.get((pkgName, f"{pkgName}-{pkgVer}"), [])
+        distPath = f"{arch}/dist-runtime/{pkgName}/{pkgName}-{pkgVer}"
+        runtimeDeps = list(listDir(distPath))
         if not runtimeDeps:
-          error("%s / %s / %s: cannot list dependencies from dist-runtime: skipping",
-                arch, pkgName, pkgVer)
+          error("%s / %s / %s: cannot list dependencies from %s: skipping",
+                arch, pkgName, pkgVer, distPath)
           continue
-        debug("%s / %s / %s: listing all dependencies from dist-runtime cache",
-              arch, pkgName, pkgVer)
+        debug("%s / %s / %s: listing all dependencies under %s",
+              arch, pkgName, pkgVer, distPath)
         for depTar in runtimeDeps:
           if depTar["type"] != "file":
             continue