multi-pack-index: report progress during 'verify'

When verifying a multi-pack-index, the only action that takes significant time is checking the object offsets. For example, to verify a multi-pack-index containing 6.2 million objects in the Linux kernel repository takes 1.3 seconds on my machine. 99% of that time is spent looking up object offsets in each of the packfiles and comparing them to the multi-pack-index offset. Add a progress indicator for that section of the 'verify' verb. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Derrick Stolee committed Sep 13, 2018 at 11:02 UTC 144d70333e826ea2480d60eb2298013eeef0cabf
1 file changed +6
midx.c
+6
@@ -7,6 +7,7 @@
7 #include "object-store.h"
8 #include "sha1-lookup.h"
9 #include "midx.h"
10 +#include "progress.h"
11
12 #define MIDX_SIGNATURE 0x4d494458 /* "MIDX" */
13 #define MIDX_VERSION 1
@@ -940,6 +941,7 @@ static void midx_report(const char *fmt, ...)
941 int verify_midx_file(const char *object_dir)
942 {
943 uint32_t i;
944 + struct progress *progress = NULL;
945 struct multi_pack_index *m = load_multi_pack_index(object_dir, 1);
946 verify_midx_error = 0;
947
@@ -971,6 +973,7 @@ int verify_midx_file(const char *object_dir)
973 i, oid_to_hex(&oid1), oid_to_hex(&oid2), i + 1);
974 }
975
976 + progress = start_progress(_("Verifying object offsets"), m->num_objects);
977 for (i = 0; i < m->num_objects; i++) {
978 struct object_id oid;
979 struct pack_entry e;
@@ -995,7 +998,10 @@ int verify_midx_file(const char *object_dir)
998 if (m_offset != p_offset)
999 midx_report(_("incorrect object offset for oid[%d] = %s: %"PRIx64" != %"PRIx64),
1000 i, oid_to_hex(&oid), m_offset, p_offset);
1001 +
1002 + display_progress(progress, i + 1);
1003 }
1004 + stop_progress(&progress);
1005
1006 return verify_midx_error;
1007 }