Don't find objects in packs which aren't available anymore.

diff --git a/sha1_file.c b/sha1_file.c
index eec4f418bcd07db32bbbdb116c0a3b2aa00be438..2eff14ac87e3596194733086b94342a3112e2eee 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1408,6 +1408,18 @@ static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e, cons
                }
                offset = find_pack_entry_one(sha1, p);
                if (offset) {
+                       /*
+                        * We are about to tell the caller where they can
+                        * locate the requested object.  We better make
+                        * sure the packfile is still here and can be
+                        * accessed before supplying that answer, as
+                        * it may have been deleted since the index
+                        * was loaded!
+                        */
+                       if (p->pack_fd == -1 && open_packed_git(p)) {
+                               error("packfile %s cannot be accessed", p->pack_name);
+                               continue;
+                       }
                        e->offset = offset;
                        e->p = p;
                        hashcpy(e->sha1, sha1);