Treat a uv exclude-newer of false as no cutoff

uv 0.11.24+ accepts `--exclude-newer false` and
`UV_EXCLUDE_NEWER=false` to turn the global cutoff off, and a pylock
compiled that way keeps every file. Both were read as cutoffs and
refused the restore. Treat false as no cutoff, as the per-package
and settings checks already do.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FW66bMcoJmYGQykhbfuA8u

Author: claude

crates/socket-patch-core/src/patch/redirect/upstream/uv.rs

@@ -416,7 +416,10 @@ async fn restore_lock(
         for hit in &hits {
             let why = if let Some(flag) = compile_filter(&command, &hit.name) {
                 format!("`uv pip compile {flag}` filters")
-            } else if env_set("UV_EXCLUDE_NEWER") {
+            } else if std::env::var_os("UV_EXCLUDE_NEWER")
+                // Empty is unset, and `false` turns the cutoff off.
+                .is_some_and(|v| !v.is_empty() && v != "false")
+            {
                 "the `UV_EXCLUDE_NEWER` cutoff set in this environment filters".to_string()
             } else if let Some((path, key)) = settings_filter(&settings, &hit.name) {
                 format!("{path}'s uv `{key}` setting filters")
@@ -727,7 +730,9 @@ fn compile_filter(command: &[&str], name: &str) -> Option<String> {
             _ => (*arg, None),
         };
         let applies = match flag {
-            "--no-build" | "--exclude-newer" => true,
+            "--no-build" => true,
+            // `false` turns the cutoff off (uv 0.11.24+).
+            "--exclude-newer" => inline.or_else(|| args.next().copied()) != Some("false"),
             "--only-binary" | "--no-binary" | "--exclude-newer-package" => {
                 let Some(value) = inline.or_else(|| args.next().copied()) else {
                     continue;

crates/socket-patch-core/tests/upstream_restore_golden.rs

@@ -2262,6 +2262,8 @@ async fn pip_compile_pylock_build_filters_refuse_the_filtered_entry() {
         " --no-build-isolation",
         " --exclude-newer-package idna=2023-01-01T00:00:00Z",
         " --exclude-newer-package urllib3=false",
+        " --exclude-newer false",
+        " --exclude-newer=false",
     ] {
         let input = tree(&[("pylock.toml", with_flags(flags))]);
         assert_pypi_round_trip(flags, &input, &[urllib3_dep()], None).await;
@@ -2352,10 +2354,12 @@ async fn pip_compile_pylock_build_filters_refuse_the_filtered_entry() {
         let (why, _, _) = pypi_refusal(&input, &[urllib3_dep()], &RestoreOptions::default()).await;
         assert!(why.contains(expect), "{why}");
     }
-    let _env = EnvGuard::set(&[("UV_EXCLUDE_NEWER", String::new())]);
-    let input = tree(&[("pylock.toml", uv_pylock(false))]);
-    assert_pypi_round_trip("empty UV_EXCLUDE_NEWER", &input, &[urllib3_dep()], None).await;
-    drop(_env);
+    // Empty is unset, and `false` turns the cutoff off.
+    for value in ["", "false"] {
+        let _env = EnvGuard::set(&[("UV_EXCLUDE_NEWER", value.to_string())]);
+        let input = tree(&[("pylock.toml", uv_pylock(false))]);
+        assert_pypi_round_trip("UV_EXCLUDE_NEWER off", &input, &[urllib3_dep()], None).await;
+    }
     // With no uv command line recorded (`--no-header`, or a header that
     // `UV_CUSTOM_COMPILE_COMMAND` replaced) the flags cannot be ruled out.
     let comment = "# This file was autogenerated by uv via the following command:\n";