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diff --git a/sha1-name.c b/sha1-name.c
index bd99fd822bd4c6948eb401ae305192bdaa8ce36e..60d9ef3c7e7108c859647656972c171cce4e7d7f 100644 (file)
--- a/sha1-name.c
+++ b/sha1-name.c
@@ -223,7 +223,7 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
 
 static int disambiguate_commit_only(const struct object_id *oid, void *cb_data_unused)
 {
-       int kind = oid_object_info(oid, NULL);
+       int kind = oid_object_info(the_repository, oid, NULL);
        return kind == OBJ_COMMIT;
 }
 
@@ -232,7 +232,7 @@ static int disambiguate_committish_only(const struct object_id *oid, void *cb_da
        struct object *obj;
        int kind;
 
-       kind = oid_object_info(oid, NULL);
+       kind = oid_object_info(the_repository, oid, NULL);
        if (kind == OBJ_COMMIT)
                return 1;
        if (kind != OBJ_TAG)
@@ -247,7 +247,7 @@ static int disambiguate_committish_only(const struct object_id *oid, void *cb_da
 
 static int disambiguate_tree_only(const struct object_id *oid, void *cb_data_unused)
 {
-       int kind = oid_object_info(oid, NULL);
+       int kind = oid_object_info(the_repository, oid, NULL);
        return kind == OBJ_TREE;
 }
 
@@ -256,7 +256,7 @@ static int disambiguate_treeish_only(const struct object_id *oid, void *cb_data_
        struct object *obj;
        int kind;
 
-       kind = oid_object_info(oid, NULL);
+       kind = oid_object_info(the_repository, oid, NULL);
        if (kind == OBJ_TREE || kind == OBJ_COMMIT)
                return 1;
        if (kind != OBJ_TAG)
@@ -271,7 +271,7 @@ static int disambiguate_treeish_only(const struct object_id *oid, void *cb_data_
 
 static int disambiguate_blob_only(const struct object_id *oid, void *cb_data_unused)
 {
-       int kind = oid_object_info(oid, NULL);
+       int kind = oid_object_info(the_repository, oid, NULL);
        return kind == OBJ_BLOB;
 }
 
@@ -346,11 +346,10 @@ static int show_ambiguous_object(const struct object_id *oid, void *data)
        struct strbuf desc = STRBUF_INIT;
        int type;
 
-
        if (ds->fn && !ds->fn(oid, ds->cb_data))
                return 0;
 
-       type = oid_object_info(oid, NULL);
+       type = oid_object_info(the_repository, oid, NULL);
        if (type == OBJ_COMMIT) {
                struct commit *commit = lookup_commit(oid);
                if (commit) {
@@ -373,6 +372,40 @@ static int show_ambiguous_object(const struct object_id *oid, void *data)
        return 0;
 }
 
+static int collect_ambiguous(const struct object_id *oid, void *data)
+{
+       oid_array_append(data, oid);
+       return 0;
+}
+
+static int sort_ambiguous(const void *a, const void *b)
+{
+       int a_type = oid_object_info(the_repository, a, NULL);
+       int b_type = oid_object_info(the_repository, b, NULL);
+       int a_type_sort;
+       int b_type_sort;
+
+       /*
+        * Sorts by hash within the same object type, just as
+        * oid_array_for_each_unique() would do.
+        */
+       if (a_type == b_type)
+               return oidcmp(a, b);
+
+       /*
+        * Between object types show tags, then commits, and finally
+        * trees and blobs.
+        *
+        * The object_type enum is commit, tree, blob, tag, but we
+        * want tag, commit, tree blob. Cleverly (perhaps too
+        * cleverly) do that with modulus, since the enum assigns 1 to
+        * commit, so tag becomes 0.
+        */
+       a_type_sort = a_type % 4;
+       b_type_sort = b_type % 4;
+       return a_type_sort > b_type_sort ? 1 : -1;
+}
+
 static int get_short_oid(const char *name, int len, struct object_id *oid,
                          unsigned flags)
 {
@@ -384,7 +417,7 @@ static int get_short_oid(const char *name, int len, struct object_id *oid,
                return -1;
 
        if (HAS_MULTI_BITS(flags & GET_OID_DISAMBIGUATORS))
-               die("BUG: multiple get_short_oid disambiguator flags");
+               BUG("multiple get_short_oid disambiguator flags");
 
        if (flags & GET_OID_COMMIT)
                ds.fn = disambiguate_commit_only;
@@ -404,6 +437,8 @@ static int get_short_oid(const char *name, int len, struct object_id *oid,
        status = finish_object_disambiguation(&ds, oid);
 
        if (!quietly && (status == SHORT_NAME_AMBIGUOUS)) {
+               struct oid_array collect = OID_ARRAY_INIT;
+
                error(_("short SHA1 %s is ambiguous"), ds.hex_pfx);
 
                /*
@@ -416,18 +451,17 @@ static int get_short_oid(const char *name, int len, struct object_id *oid,
                        ds.fn = NULL;
 
                advise(_("The candidates are:"));
-               for_each_abbrev(ds.hex_pfx, show_ambiguous_object, &ds);
+               for_each_abbrev(ds.hex_pfx, collect_ambiguous, &collect);
+               QSORT(collect.oid, collect.nr, sort_ambiguous);
+
+               if (oid_array_for_each(&collect, show_ambiguous_object, &ds))
+                       BUG("show_ambiguous_object shouldn't return non-zero");
+               oid_array_clear(&collect);
        }
 
        return status;
 }
 
-static int collect_ambiguous(const struct object_id *oid, void *data)
-{
-       oid_array_append(data, oid);
-       return 0;
-}
-
 int for_each_abbrev(const char *prefix, each_abbrev_fn fn, void *cb_data)
 {
        struct oid_array collect = OID_ARRAY_INIT;
@@ -1685,8 +1719,8 @@ static int get_oid_with_context_1(const char *name,
                        if (new_filename)
                                filename = new_filename;
                        if (flags & GET_OID_FOLLOW_SYMLINKS) {
-                               ret = get_tree_entry_follow_symlinks(tree_oid.hash,
-                                       filename, oid->hash, &oc->symlink_path,
+                               ret = get_tree_entry_follow_symlinks(&tree_oid,
+                                       filename, oid, &oc->symlink_path,
                                        &oc->mode);
                        } else {
                                ret = get_tree_entry(&tree_oid, filename, oid,
@@ -1698,7 +1732,6 @@ static int get_oid_with_context_1(const char *name,
                                                                   name, len);
                                }
                        }
-                       hashcpy(oc->tree, tree_oid.hash);
                        if (flags & GET_OID_RECORD_PATH)
                                oc->path = xstrdup(filename);
 
@@ -1729,6 +1762,6 @@ void maybe_die_on_misspelt_object_name(const char *name, const char *prefix)
 int get_oid_with_context(const char *str, unsigned flags, struct object_id *oid, struct object_context *oc)
 {
        if (flags & GET_OID_FOLLOW_SYMLINKS && flags & GET_OID_ONLY_TO_DIE)
-               die("BUG: incompatible flags for get_sha1_with_context");
+               BUG("incompatible flags for get_sha1_with_context");
        return get_oid_with_context_1(str, flags, NULL, oid, oc);
 }