From 46eb6e31ef01684ec2dc64f690a63446022940e5 Mon Sep 17 00:00:00 2001
From: Derrick Stolee <dstolee@microsoft.com>
Date: Thu, 1 Apr 2021 01:49:48 +0000
Subject: grep: ensure full index

Before iterating over all cache entries, ensure that a sparse index is
expanded to a full one so we do not miss blobs to scan. Later, this can
integrate more carefully with sparse indexes with proper testing.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/grep.c b/builtin/grep.c
index 4e91a25..c2d4041 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -504,6 +504,8 @@ static int grep_cache(struct grep_opt *opt,
 	if (repo_read_index(repo) < 0)
 		die(_("index file corrupt"));
 
+	/* TODO: audit for interaction with sparse-index. */
+	ensure_full_index(repo->index);
 	for (nr = 0; nr < repo->index->cache_nr; nr++) {
 		const struct cache_entry *ce = repo->index->cache[nr];
 
-- 
cgit v0.10.2-6-g49f6