Set download_info also when the cache miss origin.json

Author: sbidoul

src/pip/_internal/resolution/legacy/resolver.py

@@ -45,6 +45,7 @@
 from pip._internal.resolution.base import BaseResolver, InstallRequirementProvider
 from pip._internal.utils import compatibility_tags
 from pip._internal.utils.compatibility_tags import get_supported
+from pip._internal.utils.direct_url_helpers import direct_url_from_link
 from pip._internal.utils.logging import indent_log
 from pip._internal.utils.misc import normalize_version_info
 from pip._internal.utils.packaging import check_requires_python
@@ -431,8 +432,14 @@ def _populate_link(self, req: InstallRequirement) -> None:
             logger.debug("Using cached wheel link: %s", cache_entry.link)
             if req.link is req.original_link and cache_entry.persistent:
                 req.original_link_is_in_wheel_cache = True
-                if cache_entry.origin is not None:
-                    req.download_info = cache_entry.origin
+            if cache_entry.origin is not None:
+                req.download_info = cache_entry.origin
+            else:
+                # Legacy cache entry that does not have origin.json.
+                # download_info may miss the archive_info.hash field.
+                req.download_info = direct_url_from_link(
+                    req.link, link_is_in_wheel_cache=True
+                )
             req.link = cache_entry.link
 
     def _get_dist_for(self, req: InstallRequirement) -> BaseDistribution:

src/pip/_internal/resolution/resolvelib/candidates.py

@@ -18,6 +18,7 @@
     install_req_from_line,
 )
 from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils.direct_url_helpers import direct_url_from_link
 from pip._internal.utils.misc import normalize_version_info
 
 from .base import Candidate, CandidateVersion, Requirement, format_name
@@ -281,14 +282,17 @@ def __init__(
                     version, wheel_version, name
                 )
 
-        if (
-            cache_entry is not None
-            and cache_entry.persistent
-            and template.link is template.original_link
-        ):
-            ireq.original_link_is_in_wheel_cache = True
+        if cache_entry is not None:
+            if cache_entry.persistent and template.link is template.original_link:
+                ireq.original_link_is_in_wheel_cache = True
             if cache_entry.origin is not None:
                 ireq.download_info = cache_entry.origin
+            else:
+                # Legacy cache entry that does not have origin.json.
+                # download_info may miss the archive_info.hash field.
+                ireq.download_info = direct_url_from_link(
+                    source_link, link_is_in_wheel_cache=True
+                )
 
         super().__init__(
             link=link,