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Diffstat (limited to 'sha1-name.c')
-rw-r--r--sha1-name.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/sha1-name.c b/sha1-name.c
index c9cc131..6cccfbb 100644
--- a/sha1-name.c
+++ b/sha1-name.c
@@ -12,6 +12,7 @@
#include "packfile.h"
#include "object-store.h"
#include "repository.h"
+#include "midx.h"
static int get_oid_oneline(const char *, struct object_id *, struct commit_list *);
@@ -149,6 +150,32 @@ static int match_sha(unsigned len, const unsigned char *a, const unsigned char *
return 1;
}
+static void unique_in_midx(struct multi_pack_index *m,
+ struct disambiguate_state *ds)
+{
+ uint32_t num, i, first = 0;
+ const struct object_id *current = NULL;
+ num = m->num_objects;
+
+ if (!num)
+ return;
+
+ bsearch_midx(&ds->bin_pfx, m, &first);
+
+ /*
+ * At this point, "first" is the location of the lowest object
+ * with an object name that could match "bin_pfx". See if we have
+ * 0, 1 or more objects that actually match(es).
+ */
+ for (i = first; i < num && !ds->ambiguous; i++) {
+ struct object_id oid;
+ current = nth_midxed_object_oid(&oid, m, i);
+ if (!match_sha(ds->len, ds->bin_pfx.hash, current->hash))
+ break;
+ update_candidates(ds, current);
+ }
+}
+
static void unique_in_pack(struct packed_git *p,
struct disambiguate_state *ds)
{
@@ -177,8 +204,12 @@ static void unique_in_pack(struct packed_git *p,
static void find_short_packed_object(struct disambiguate_state *ds)
{
+ struct multi_pack_index *m;
struct packed_git *p;
+ for (m = get_multi_pack_index(the_repository); m && !ds->ambiguous;
+ m = m->next)
+ unique_in_midx(m, ds);
for (p = get_packed_git(the_repository); p && !ds->ambiguous;
p = p->next)
unique_in_pack(p, ds);
@@ -529,6 +560,42 @@ static int extend_abbrev_len(const struct object_id *oid, void *cb_data)
return 0;
}
+static void find_abbrev_len_for_midx(struct multi_pack_index *m,
+ struct min_abbrev_data *mad)
+{
+ int match = 0;
+ uint32_t num, first = 0;
+ struct object_id oid;
+ const struct object_id *mad_oid;
+
+ if (!m->num_objects)
+ return;
+
+ num = m->num_objects;
+ mad_oid = mad->oid;
+ match = bsearch_midx(mad_oid, m, &first);
+
+ /*
+ * first is now the position in the packfile where we would insert
+ * mad->hash if it does not exist (or the position of mad->hash if
+ * it does exist). Hence, we consider a maximum of two objects
+ * nearby for the abbreviation length.
+ */
+ mad->init_len = 0;
+ if (!match) {
+ if (nth_midxed_object_oid(&oid, m, first))
+ extend_abbrev_len(&oid, mad);
+ } else if (first < num - 1) {
+ if (nth_midxed_object_oid(&oid, m, first + 1))
+ extend_abbrev_len(&oid, mad);
+ }
+ if (first > 0) {
+ if (nth_midxed_object_oid(&oid, m, first - 1))
+ extend_abbrev_len(&oid, mad);
+ }
+ mad->init_len = mad->cur_len;
+}
+
static void find_abbrev_len_for_pack(struct packed_git *p,
struct min_abbrev_data *mad)
{
@@ -567,8 +634,11 @@ static void find_abbrev_len_for_pack(struct packed_git *p,
static void find_abbrev_len_packed(struct min_abbrev_data *mad)
{
+ struct multi_pack_index *m;
struct packed_git *p;
+ for (m = get_multi_pack_index(the_repository); m; m = m->next)
+ find_abbrev_len_for_midx(m, mad);
for (p = get_packed_git(the_repository); p; p = p->next)
find_abbrev_len_for_pack(p, mad);
}