From 7056ba9a5c750305726be862a51ff18e2318c138 Mon Sep 17 00:00:00 2001
From: Ryan Liptak <squeek502@hotmail.com>
Date: Sun, 19 Apr 2026 16:17:34 -0700
Subject: [PATCH] Fetch: Fix zip fetching when cache directory doesn't have tmp
 dir

Fixes #31964
---
 src/Package/Fetch.zig | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/Package/Fetch.zig b/src/Package/Fetch.zig
index bbe5f35ee3..59bd0a931e 100644
--- a/src/Package/Fetch.zig
+++ b/src/Package/Fetch.zig
@@ -1513,7 +1513,19 @@ fn unzip(
             .read = true,
         }) catch |err| switch (err) {
             error.PathAlreadyExists => continue,
-            error.Canceled => return error.Canceled,
+            error.FileNotFound => {
+                cache_root.handle.createDir(io, prefix, .default_dir) catch |dir_err| switch (dir_err) {
+                    error.Canceled => |e| return e,
+                    // error.PathAlreadyExists is considered a failure here because
+                    // it implies that the prefix is not a directory.
+                    else => |e| return f.fail(
+                        f.location_tok,
+                        try eb.printString("failed to create temporary directory: {t}", .{e}),
+                    ),
+                };
+                continue;
+            },
+            error.Canceled => |e| return e,
             else => |e| return f.fail(
                 f.location_tok,
                 try eb.printString("failed to create temporary zip file: {t}", .{e}),
@@ -1526,7 +1538,7 @@ fn unzip(
         var zip_file_writer = zip_file.writer(io, &zip_file_buffer);
 
         _ = reader.streamRemaining(&zip_file_writer.interface) catch |err| switch (err) {
-            error.ReadFailed => return error.ReadFailed,
+            error.ReadFailed => |e| return e,
             error.WriteFailed => return f.fail(
                 f.location_tok,
                 try eb.printString("failed writing temporary zip file: {t}", .{err}),