commit: add repository argument to lookup_commit_reference

Add a repository argument to allow callers of lookup_commit_reference
to be more specific about which repository to handle. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

13 files changed, 36 insertions, 26 deletions

diff --git a/builtin/branch.c b/builtin/branch.c
index 1876ca9..a50632f 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -121,7 +121,8 @@ static int branch_merged(int kind, const char *name,
 		    (reference_name = reference_name_to_free =
 		     resolve_refdup(upstream, RESOLVE_REF_READING,
 				    &oid, NULL)) != NULL)
-			reference_rev = lookup_commit_reference(&oid);
+			reference_rev = lookup_commit_reference(the_repository,
+								&oid);
 	}
 	if (!reference_rev)
 		reference_rev = head_rev;
@@ -154,7 +155,7 @@ static int check_branch_commit(const char *branchname, const char *refname,
 			       const struct object_id *oid, struct commit *head_rev,
 			       int kinds, int force)
 {
-	struct commit *rev = lookup_commit_reference(oid);
+	struct commit *rev = lookup_commit_reference(the_repository, oid);
 	if (!rev) {
 		error(_("Couldn't look up commit object for '%s'"), refname);
 		return -1;
@@ -208,7 +209,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
 	}
 
 	if (!force) {
-		head_rev = lookup_commit_reference(&head_oid);
+		head_rev = lookup_commit_reference(the_repository, &head_oid);
 		if (!head_rev)
 			die(_("Couldn't look up commit object for HEAD"));
 	}
diff --git a/builtin/clone.c b/builtin/clone.c
index 1d939af..4b3b48e 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -696,7 +696,8 @@ static void update_head(const struct ref *our, const struct ref *remote,
 			install_branch_config(0, head, option_origin, our->name);
 		}
 	} else if (our) {
-		struct commit *c = lookup_commit_reference(&our->old_oid);
+		struct commit *c = lookup_commit_reference(the_repository,
+							   &our->old_oid);
 		/* --branch specifies a non-branch (i.e. tags), detach HEAD */
 		update_ref(msg, "HEAD", &c->object.oid, NULL, REF_NO_DEREF,
 			   UPDATE_REFS_DIE_ON_ERR);
diff --git a/builtin/describe.c b/builtin/describe.c
index 0b5d856..c8ff647 100644
--- a/builtin/describe.c
+++ b/builtin/describe.c
@@ -303,7 +303,7 @@ static void describe_commit(struct object_id *oid, struct strbuf *dst)
 	unsigned long seen_commits = 0;
 	unsigned int unannotated_cnt = 0;
 
-	cmit = lookup_commit_reference(oid);
+	cmit = lookup_commit_reference(the_repository, oid);
 
 	n = find_commit_name(&cmit->object.oid);
 	if (n && (tags || all || n->prio == 2)) {
diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index 2990151..a5718d9 100644
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -11,7 +11,7 @@ static struct rev_info log_tree_opt;
 
 static int diff_tree_commit_oid(const struct object_id *oid)
 {
-	struct commit *commit = lookup_commit_reference(oid);
+	struct commit *commit = lookup_commit_reference(the_repository, oid);
 	if (!commit)
 		return -1;
 	return log_tree_commit(&log_tree_opt, commit);
diff --git a/builtin/log.c b/builtin/log.c
index 0521759..55a6286 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -907,8 +907,8 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
 	o2 = rev->pending.objects[1].item;
 	flags1 = o1->flags;
 	flags2 = o2->flags;
-	c1 = lookup_commit_reference(&o1->oid);
-	c2 = lookup_commit_reference(&o2->oid);
+	c1 = lookup_commit_reference(the_repository, &o1->oid);
+	c2 = lookup_commit_reference(the_repository, &o2->oid);
 
 	if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING))
 		die(_("Not a range."));
@@ -1864,7 +1864,8 @@ static int add_pending_commit(const char *arg, struct rev_info *revs, int flags)
 {
 	struct object_id oid;
 	if (get_oid(arg, &oid) == 0) {
-		struct commit *commit = lookup_commit_reference(&oid);
+		struct commit *commit = lookup_commit_reference(the_repository,
+								&oid);
 		if (commit) {
 			commit->object.flags |= flags;
 			add_pending_object(revs, &commit->object, arg);
diff --git a/builtin/merge-base.c b/builtin/merge-base.c
index 3b76001..bbead6f 100644
--- a/builtin/merge-base.c
+++ b/builtin/merge-base.c
@@ -6,6 +6,7 @@
 #include "diff.h"
 #include "revision.h"
 #include "parse-options.h"
+#include "repository.h"
 
 static int show_merge_base(struct commit **rev, int rev_nr, int show_all)
 {
@@ -42,7 +43,7 @@ static struct commit *get_commit_reference(const char *arg)
 
 	if (get_oid(arg, &revkey))
 		die("Not a valid object name %s", arg);
-	r = lookup_commit_reference(&revkey);
+	r = lookup_commit_reference(the_repository, &revkey);
 	if (!r)
 		die("Not a valid commit name %s", arg);
 
@@ -171,7 +172,7 @@ static int handle_fork_point(int argc, const char **argv)
 	if (get_oid(commitname, &oid))
 		die("Not a valid object name: '%s'", commitname);
 
-	derived = lookup_commit_reference(&oid);
+	derived = lookup_commit_reference(the_repository, &oid);
 	memset(&revs, 0, sizeof(revs));
 	revs.initial = 1;
 	for_each_reflog_ent(refname, collect_one_reflog_ent, &revs);
diff --git a/builtin/notes.c b/builtin/notes.c
index a0a1840..c05cd00 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -12,6 +12,7 @@
 #include "builtin.h"
 #include "notes.h"
 #include "object-store.h"
+#include "repository.h"
 #include "blob.h"
 #include "pretty.h"
 #include "refs.h"
@@ -711,7 +712,7 @@ static int merge_commit(struct notes_merge_options *o)
 
 	if (get_oid("NOTES_MERGE_PARTIAL", &oid))
 		die(_("failed to read ref NOTES_MERGE_PARTIAL"));
-	else if (!(partial = lookup_commit_reference(&oid)))
+	else if (!(partial = lookup_commit_reference(the_repository, &oid)))
 		die(_("could not find commit from NOTES_MERGE_PARTIAL."));
 	else if (parse_commit(partial))
 		die(_("could not parse commit from NOTES_MERGE_PARTIAL."));
diff --git a/builtin/pull.c b/builtin/pull.c
index 7197b22..4e78935 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -765,10 +765,13 @@ static int get_octopus_merge_base(struct object_id *merge_base,
 {
 	struct commit_list *revs = NULL, *result;
 
-	commit_list_insert(lookup_commit_reference(curr_head), &revs);
-	commit_list_insert(lookup_commit_reference(merge_head), &revs);
+	commit_list_insert(lookup_commit_reference(the_repository, curr_head),
+			   &revs);
+	commit_list_insert(lookup_commit_reference(the_repository, merge_head),
+			   &revs);
 	if (!is_null_oid(fork_point))
-		commit_list_insert(lookup_commit_reference(fork_point), &revs);
+		commit_list_insert(lookup_commit_reference(the_repository, fork_point),
+				   &revs);
 
 	result = get_octopus_merge_bases(revs);
 	free_commit_list(revs);
@@ -944,9 +947,11 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 			struct commit_list *list = NULL;
 			struct commit *merge_head, *head;
 
-			head = lookup_commit_reference(&orig_head);
+			head = lookup_commit_reference(the_repository,
+						       &orig_head);
 			commit_list_insert(head, &list);
-			merge_head = lookup_commit_reference(&merge_heads.oid[0]);
+			merge_head = lookup_commit_reference(the_repository,
+							     &merge_heads.oid[0]);
 			if (is_descendant_of(merge_head, list)) {
 				/* we can fast-forward this without invoking rebase */
 				opt_ff = "--ff-only";
diff --git a/builtin/replace.c b/builtin/replace.c
index deabda2..0232f98 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -371,7 +371,7 @@ static int replace_parents(struct strbuf *buf, int argc, const char **argv)
 			return error(_("Not a valid object name: '%s'"),
 				     argv[i]);
 		}
-		if (!lookup_commit_reference(&oid)) {
+		if (!lookup_commit_reference(the_repository, &oid)) {
 			strbuf_release(&new_parents);
 			return error(_("could not parse %s"), argv[i]);
 		}
@@ -443,7 +443,7 @@ static int create_graft(int argc, const char **argv, int force, int gentle)
 
 	if (get_oid(old_ref, &old_oid) < 0)
 		return error(_("Not a valid object name: '%s'"), old_ref);
-	commit = lookup_commit_reference(&old_oid);
+	commit = lookup_commit_reference(the_repository, &old_oid);
 	if (!commit)
 		return error(_("could not parse %s"), old_ref);
 
diff --git a/builtin/reset.c b/builtin/reset.c
index ffe41c9..d9871e5 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -319,7 +319,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 		struct commit *commit;
 		if (get_oid_committish(rev, &oid))
 			die(_("Failed to resolve '%s' as a valid revision."), rev);
-		commit = lookup_commit_reference(&oid);
+		commit = lookup_commit_reference(the_repository, &oid);
 		if (!commit)
 			die(_("Could not parse object '%s'."), rev);
 		oidcpy(&oid, &commit->object.oid);
@@ -396,7 +396,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 		update_ref_status = reset_refs(rev, &oid);
 
 		if (reset_type == HARD && !update_ref_status && !quiet)
-			print_new_head_line(lookup_commit_reference(&oid));
+			print_new_head_line(lookup_commit_reference(the_repository, &oid));
 	}
 	if (!pathspec.nr)
 		remove_branch_state();
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 2a6cb29..0f09bbb 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -280,8 +280,8 @@ static int try_difference(const char *arg)
 		if (symmetric) {
 			struct commit_list *exclude;
 			struct commit *a, *b;
-			a = lookup_commit_reference(&start_oid);
-			b = lookup_commit_reference(&end_oid);
+			a = lookup_commit_reference(the_repository, &start_oid);
+			b = lookup_commit_reference(the_repository, &end_oid);
 			if (!a || !b) {
 				*dotdot = '.';
 				return 0;
@@ -333,7 +333,7 @@ static int try_parent_shorthands(const char *arg)
 
 	*dotdot = 0;
 	if (get_oid_committish(arg, &oid) ||
-	    !(commit = lookup_commit_reference(&oid))) {
+	    !(commit = lookup_commit_reference(the_repository, &oid))) {
 		*dotdot = '^';
 		return 0;
 	}
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 2456b47..4b9d3c0 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -831,7 +831,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 			       MAX_REVS), MAX_REVS);
 		if (get_oid(ref_name[num_rev], &revkey))
 			die(_("'%s' is not a valid ref."), ref_name[num_rev]);
-		commit = lookup_commit_reference(&revkey);
+		commit = lookup_commit_reference(the_repository, &revkey);
 		if (!commit)
 			die(_("cannot find commit %s (%s)"),
 			    ref_name[num_rev], oid_to_hex(&revkey));
diff --git a/builtin/tag.c b/builtin/tag.c
index 9919b03..9a19ffb 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -313,7 +313,7 @@ static void create_reflog_msg(const struct object_id *oid, struct strbuf *sb)
 		}
 		free(buf);
 
-		if ((c = lookup_commit_reference(oid)) != NULL)
+		if ((c = lookup_commit_reference(the_repository, oid)) != NULL)
 			strbuf_addf(sb, ", %s", show_date(c->date, 0, DATE_MODE(SHORT)));
 		break;
 	case OBJ_TREE: