From 011a6de6dc1a49a4a6e816d8c5df39800a362879 Mon Sep 17 00:00:00 2001
From: Charlie Marsh <charlie.r.marsh@gmail.com>
Date: Wed, 19 Mar 2025 10:15:12 -0700
Subject: [PATCH] Make deserialization non-fatal when assessing source tree
 revisions (#12319)

## Summary

Closes https://github.com/astral-sh/uv/issues/12318.
---
 crates/uv-distribution/src/source/mod.rs | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/crates/uv-distribution/src/source/mod.rs b/crates/uv-distribution/src/source/mod.rs
index a09b7a8e3..f2448590b 100644
--- a/crates/uv-distribution/src/source/mod.rs
+++ b/crates/uv-distribution/src/source/mod.rs
@@ -1363,9 +1363,17 @@ impl<'a, T: BuildContext> SourceDistributionBuilder<'a, T> {
             .map_err(Error::CacheRead)?
             .is_fresh()
         {
-            if let Some(pointer) = LocalRevisionPointer::read_from(&entry)? {
-                if *pointer.cache_info() == cache_info {
-                    return Ok(pointer);
+            match LocalRevisionPointer::read_from(&entry) {
+                Ok(Some(pointer)) => {
+                    if *pointer.cache_info() == cache_info {
+                        return Ok(pointer);
+                    }
+
+                    debug!("Cached revision does not match expected cache info for: {source}");
+                }
+                Ok(None) => {}
+                Err(err) => {
+                    debug!("Failed to deserialize cached revision for: {source} ({err})",);
                 }
             }
         }