Merge branch 'nd/tree-walk-with-repo'

The tree-walk API learned to pass an in-core repository
instance throughout more codepaths.

* nd/tree-walk-with-repo:
  t7814: do not generate same commits in different repos
  Use the right 'struct repository' instead of the_repository
  match-trees.c: remove the_repo from shift_tree*()
  tree-walk.c: remove the_repo from get_tree_entry_follow_symlinks()
  tree-walk.c: remove the_repo from get_tree_entry()
  tree-walk.c: remove the_repo from fill_tree_descriptor()
  sha1-file.c: remove the_repo from read_object_with_reference()

Author: gitster

archive.c

@@ -418,7 +418,9 @@ static void parse_treeish_arg(const char **argv,
 		unsigned short mode;
 		int err;
 
-		err = get_tree_entry(&tree->object.oid, prefix, &tree_oid,
+		err = get_tree_entry(ar_args->repo,
+				     &tree->object.oid,
+				     prefix, &tree_oid,
 				     &mode);
 		if (err || !S_ISDIR(mode))
 			die(_("current working directory is untracked"));

blame.c

@@ -101,7 +101,7 @@ static void verify_working_tree_path(struct repository *r,
 		struct object_id blob_oid;
 		unsigned short mode;
 
-		if (!get_tree_entry(commit_oid, path, &blob_oid, &mode) &&
+		if (!get_tree_entry(r, commit_oid, path, &blob_oid, &mode) &&
 		    oid_object_info(r, &blob_oid, NULL) == OBJ_BLOB)
 			return;
 	}
@@ -1232,7 +1232,7 @@ static int fill_blob_sha1_and_mode(struct repository *r,
 {
 	if (!is_null_oid(&origin->blob_oid))
 		return 0;
-	if (get_tree_entry(&origin->commit->object.oid, origin->path, &origin->blob_oid, &origin->mode))
+	if (get_tree_entry(r, &origin->commit->object.oid, origin->path, &origin->blob_oid, &origin->mode))
 		goto error_out;
 	if (oid_object_info(r, &origin->blob_oid, NULL) != OBJ_BLOB)
 		goto error_out;

builtin/cat-file.c

@@ -172,7 +172,8 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
 			 * fall-back to the usual case.
 			 */
 		}
-		buf = read_object_with_reference(&oid, exp_type, &size, NULL);
+		buf = read_object_with_reference(the_repository,
+						 &oid, exp_type, &size, NULL);
 		break;
 
 	default:

builtin/grep.c

@@ -458,7 +458,8 @@ static int grep_submodule(struct grep_opt *opt,
 		object = parse_object_or_die(oid, oid_to_hex(oid));
 
 		grep_read_lock();
-		data = read_object_with_reference(&object->oid, tree_type,
+		data = read_object_with_reference(&subrepo,
+						  &object->oid, tree_type,
 						  &size, NULL);
 		grep_read_unlock();
 
@@ -623,7 +624,8 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
 		int hit, len;
 
 		grep_read_lock();
-		data = read_object_with_reference(&obj->oid, tree_type,
+		data = read_object_with_reference(opt->repo,
+						  &obj->oid, tree_type,
 						  &size, NULL);
 		grep_read_unlock();
 

builtin/merge-tree.c

@@ -205,6 +205,7 @@ static void resolve(const struct traverse_info *info, struct name_entry *ours, s
 static void unresolved_directory(const struct traverse_info *info,
 				 struct name_entry n[3])
 {
+	struct repository *r = the_repository;
 	char *newbase;
 	struct name_entry *p;
 	struct tree_desc t[3];
@@ -220,9 +221,9 @@ static void unresolved_directory(const struct traverse_info *info,
 	newbase = traverse_path(info, p);
 
 #define ENTRY_OID(e) (((e)->mode && S_ISDIR((e)->mode)) ? &(e)->oid : NULL)
-	buf0 = fill_tree_descriptor(t + 0, ENTRY_OID(n + 0));
-	buf1 = fill_tree_descriptor(t + 1, ENTRY_OID(n + 1));
-	buf2 = fill_tree_descriptor(t + 2, ENTRY_OID(n + 2));
+	buf0 = fill_tree_descriptor(r, t + 0, ENTRY_OID(n + 0));
+	buf1 = fill_tree_descriptor(r, t + 1, ENTRY_OID(n + 1));
+	buf2 = fill_tree_descriptor(r, t + 2, ENTRY_OID(n + 2));
 #undef ENTRY_OID
 
 	merge_trees(t, newbase);
@@ -351,30 +352,33 @@ static void merge_trees(struct tree_desc t[3], const char *base)
 	traverse_trees(&the_index, 3, t, &info);
 }
 
-static void *get_tree_descriptor(struct tree_desc *desc, const char *rev)
+static void *get_tree_descriptor(struct repository *r,
+				 struct tree_desc *desc,
+				 const char *rev)
 {
 	struct object_id oid;
 	void *buf;
 
-	if (get_oid(rev, &oid))
+	if (repo_get_oid(r, rev, &oid))
 		die("unknown rev %s", rev);
-	buf = fill_tree_descriptor(desc, &oid);
+	buf = fill_tree_descriptor(r, desc, &oid);
 	if (!buf)
 		die("%s is not a tree", rev);
 	return buf;
 }
 
 int cmd_merge_tree(int argc, const char **argv, const char *prefix)
 {
+	struct repository *r = the_repository;
 	struct tree_desc t[3];
 	void *buf1, *buf2, *buf3;
 
 	if (argc != 4)
 		usage(merge_tree_usage);
 
-	buf1 = get_tree_descriptor(t+0, argv[1]);
-	buf2 = get_tree_descriptor(t+1, argv[2]);
-	buf3 = get_tree_descriptor(t+2, argv[3]);
+	buf1 = get_tree_descriptor(r, t+0, argv[1]);
+	buf2 = get_tree_descriptor(r, t+1, argv[2]);
+	buf3 = get_tree_descriptor(r, t+2, argv[3]);
 	merge_trees(t, "");
 	free(buf1);
 	free(buf2);

builtin/pack-objects.c

@@ -1428,7 +1428,8 @@ static void add_preferred_base(struct object_id *oid)
 	if (window <= num_preferred_base++)
 		return;
 
-	data = read_object_with_reference(oid, tree_type, &size, &tree_oid);
+	data = read_object_with_reference(the_repository, oid,
+					  tree_type, &size, &tree_oid);
 	if (!data)
 		return;
 

builtin/rebase.c

@@ -850,13 +850,13 @@ static int reset_head(struct object_id *oid, const char *action,
 		goto leave_reset_head;
 	}
 
-	if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) {
+	if (!reset_hard && !fill_tree_descriptor(the_repository, &desc[nr++], &head_oid)) {
 		ret = error(_("failed to find tree of %s"),
 			    oid_to_hex(&head_oid));
 		goto leave_reset_head;
 	}
 
-	if (!fill_tree_descriptor(&desc[nr++], oid)) {
+	if (!fill_tree_descriptor(the_repository, &desc[nr++], oid)) {
 		ret = error(_("failed to find tree of %s"), oid_to_hex(oid));
 		goto leave_reset_head;
 	}

builtin/reset.c

@@ -79,13 +79,13 @@ static int reset_index(const struct object_id *oid, int reset_type, int quiet)
 		struct object_id head_oid;
 		if (get_oid("HEAD", &head_oid))
 			return error(_("You do not have a valid HEAD."));
-		if (!fill_tree_descriptor(desc + nr, &head_oid))
+		if (!fill_tree_descriptor(the_repository, desc + nr, &head_oid))
 			return error(_("Failed to find tree of HEAD."));
 		nr++;
 		opts.fn = twoway_merge;
 	}
 
-	if (!fill_tree_descriptor(desc + nr, oid)) {
+	if (!fill_tree_descriptor(the_repository, desc + nr, oid)) {
 		error(_("Failed to find tree of %s."), oid_to_hex(oid));
 		goto out;
 	}

builtin/rm.c

@@ -179,7 +179,7 @@ static int check_local_mod(struct object_id *head, int index_only)
 		 * way as changed from the HEAD.
 		 */
 		if (no_head
-		     || get_tree_entry(head, name, &oid, &mode)
+		     || get_tree_entry(the_repository, head, name, &oid, &mode)
 		     || ce->ce_mode != create_ce_mode(mode)
 		     || !oideq(&ce->oid, &oid))
 			staged_changes = 1;

builtin/update-index.c

@@ -601,7 +601,7 @@ static struct cache_entry *read_one_ent(const char *which,
 	struct object_id oid;
 	struct cache_entry *ce;
 
-	if (get_tree_entry(ent, path, &oid, &mode)) {
+	if (get_tree_entry(the_repository, ent, path, &oid, &mode)) {
 		if (which)
 			error("%s: not in %s branch.", path, which);
 		return NULL;

cache.h

@@ -1476,7 +1476,8 @@ int df_name_compare(const char *name1, int len1, int mode1, const char *name2, i
 int name_compare(const char *name1, size_t len1, const char *name2, size_t len2);
 int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2);
 
-void *read_object_with_reference(const struct object_id *oid,
+void *read_object_with_reference(struct repository *r,
+				 const struct object_id *oid,
 				 const char *required_type,
 				 unsigned long *size,
 				 struct object_id *oid_ret);
@@ -1762,8 +1763,8 @@ int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int
 extern int diff_auto_refresh_index;
 
 /* match-trees.c */
-void shift_tree(const struct object_id *, const struct object_id *, struct object_id *, int);
-void shift_tree_by(const struct object_id *, const struct object_id *, struct object_id *, const char *);
+void shift_tree(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, int);
+void shift_tree_by(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, const char *);
 
 /*
  * whitespace rules.

fast-import.c

@@ -2410,7 +2410,8 @@ static void note_change_n(const char *p, struct branch *b, unsigned char *old_fa
 		oidcpy(&commit_oid, &commit_oe->idx.oid);
 	} else if (!get_oid(p, &commit_oid)) {
 		unsigned long size;
-		char *buf = read_object_with_reference(&commit_oid,
+		char *buf = read_object_with_reference(the_repository,
+						       &commit_oid,
 						       commit_type, &size,
 						       &commit_oid);
 		if (!buf || size < the_hash_algo->hexsz + 6)
@@ -2482,7 +2483,8 @@ static void parse_from_existing(struct branch *b)
 		unsigned long size;
 		char *buf;
 
-		buf = read_object_with_reference(&b->oid, commit_type, &size,
+		buf = read_object_with_reference(the_repository,
+						 &b->oid, commit_type, &size,
 						 &b->oid);
 		parse_from_commit(b, buf, size);
 		free(buf);
@@ -2560,7 +2562,8 @@ static struct hash_list *parse_merge(unsigned int *count)
 			oidcpy(&n->oid, &oe->idx.oid);
 		} else if (!get_oid(from, &n->oid)) {
 			unsigned long size;
-			char *buf = read_object_with_reference(&n->oid,
+			char *buf = read_object_with_reference(the_repository,
+							       &n->oid,
 							       commit_type,
 							       &size, &n->oid);
 			if (!buf || size < the_hash_algo->hexsz + 6)

line-log.c

@@ -496,12 +496,13 @@ static struct commit *check_single_commit(struct rev_info *revs)
 	return (struct commit *) commit;
 }
 
-static void fill_blob_sha1(struct commit *commit, struct diff_filespec *spec)
+static void fill_blob_sha1(struct repository *r, struct commit *commit,
+			   struct diff_filespec *spec)
 {
 	unsigned short mode;
 	struct object_id oid;
 
-	if (get_tree_entry(&commit->object.oid, spec->path, &oid, &mode))
+	if (get_tree_entry(r, &commit->object.oid, spec->path, &oid, &mode))
 		die("There is no path %s in the commit", spec->path);
 	fill_filespec(spec, &oid, 1, mode);
 
@@ -585,7 +586,7 @@ parse_lines(struct repository *r, struct commit *commit,
 					name_part);
 
 		spec = alloc_filespec(full_name);
-		fill_blob_sha1(commit, spec);
+		fill_blob_sha1(r, commit, spec);
 		fill_line_ends(r, spec, &lines, &ends);
 		cb_data.spec = spec;
 		cb_data.lines = lines;

match-trees.c

@@ -248,7 +248,8 @@ static int splice_tree(const struct object_id *oid1, const char *prefix,
  * other hand, it could cover tree one and we might need to pick a
  * subtree of it.
  */
-void shift_tree(const struct object_id *hash1,
+void shift_tree(struct repository *r,
+		const struct object_id *hash1,
 		const struct object_id *hash2,
 		struct object_id *shifted,
 		int depth_limit)
@@ -290,7 +291,7 @@ void shift_tree(const struct object_id *hash1,
 		if (!*del_prefix)
 			return;
 
-		if (get_tree_entry(hash2, del_prefix, shifted, &mode))
+		if (get_tree_entry(r, hash2, del_prefix, shifted, &mode))
 			die("cannot find path %s in tree %s",
 			    del_prefix, oid_to_hex(hash2));
 		return;
@@ -307,7 +308,8 @@ void shift_tree(const struct object_id *hash1,
  * Unfortunately we cannot fundamentally tell which one to
  * be prefixed, as recursive merge can work in either direction.
  */
-void shift_tree_by(const struct object_id *hash1,
+void shift_tree_by(struct repository *r,
+		   const struct object_id *hash1,
 		   const struct object_id *hash2,
 		   struct object_id *shifted,
 		   const char *shift_prefix)
@@ -317,12 +319,12 @@ void shift_tree_by(const struct object_id *hash1,
 	unsigned candidate = 0;
 
 	/* Can hash2 be a tree at shift_prefix in tree hash1? */
-	if (!get_tree_entry(hash1, shift_prefix, &sub1, &mode1) &&
+	if (!get_tree_entry(r, hash1, shift_prefix, &sub1, &mode1) &&
 	    S_ISDIR(mode1))
 		candidate |= 1;
 
 	/* Can hash1 be a tree at shift_prefix in tree hash2? */
-	if (!get_tree_entry(hash2, shift_prefix, &sub2, &mode2) &&
+	if (!get_tree_entry(r, hash2, shift_prefix, &sub2, &mode2) &&
 	    S_ISDIR(mode2))
 		candidate |= 2;