Merge pull request #11897 from sbidoul/cache-hash-checking-sbi

Support wheel cache when using --require-hashes

1 files changed, 11 insertions, 1 deletions

diff --git a/src/pip/_internal/req/req_install.py b/src/pip/_internal/req/req_install.py
index e2353f032..a0ea58bd1 100644
--- a/src/pip/_internal/req/req_install.py
+++ b/src/pip/_internal/req/req_install.py
@@ -108,7 +108,11 @@ class InstallRequirement:
             # PEP 508 URL requirement
             link = Link(req.url)
         self.link = self.original_link = link
-        self.original_link_is_in_wheel_cache = False
+
+        # When this InstallRequirement is a wheel obtained from the cache of locally
+        # built wheels, this is the source link corresponding to the cache entry, which
+        # was used to download and build the cached wheel.
+        self.cached_wheel_source_link: Optional[Link] = None
 
         # Information about the location of the artifact that was downloaded . This
         # property is guaranteed to be set in resolver results.
@@ -437,6 +441,12 @@ class InstallRequirement:
             return False
         return self.link.is_wheel
 
+    @property
+    def is_wheel_from_cache(self) -> bool:
+        # When True, it means that this InstallRequirement is a local wheel file in the
+        # cache of locally built wheels.
+        return self.cached_wheel_source_link is not None
+
     # Things valid for sdists
     @property
     def unpacked_source_directory(self) -> str: