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[PATCH v3 10/25] refs: convert dwim_ref and expand_ref to struct object_id

From
brian m. carlson <sandals@crustytoothpaste.net>
Date
Oct 15, 2017, 22:06 UTC
Message-ID
<20171015220712.97308-11-sandals@crustytoothpaste.net>
In-Reply-To
<20171015220712.97308-1-sandals@crustytoothpaste.net>

All of the callers of these functions just pass the hash member of a struct object_id, so convert them to use a pointer to struct object_id directly. Insert a check for NULL in expand_ref on a temporary basis; this check can be removed when resolve_ref_unsafe is converted as well.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 archive.c             |  2 +-
 branch.c              |  2 +-
 builtin/fast-export.c |  2 +-
 builtin/log.c         |  2 +-
 builtin/merge-base.c  |  2 +-
 builtin/merge.c       |  2 +-
 builtin/rev-parse.c   |  2 +-
 builtin/show-branch.c |  2 +-
 bundle.c              |  2 +-
 refs.c                | 15 ++++++++-------
 refs.h                |  4 ++--
 remote.c              |  2 +-
 sha1_name.c           |  6 +++---
 upload-pack.c         |  2 +-
 wt-status.c           |  2 +-
 15 files changed, 25 insertions(+), 24 deletions(-)
diff --git a/archive.c b/archive.c
index 1e41f4bbeb..0b7b62af0c 100644
--- a/archive.c
+++ b/archive.c
@@ -371,7 +371,7 @@ static void parse_treeish_arg(const char **argv,
 		const char *colon = strchrnul(name, ':');
 		int refnamelen = colon - name;
 
-		if (!dwim_ref(name, refnamelen, oid.hash, &ref))
+		if (!dwim_ref(name, refnamelen, &oid, &ref))
 			die("no such ref: %.*s", refnamelen, name);
 		free(ref);
 	}
diff --git a/branch.c b/branch.c
index 45029ea142..62f7b0d8c2 100644
--- a/branch.c
+++ b/branch.c
@@ -264,7 +264,7 @@ void create_branch(const char *name, const char *start_name,
 		die(_("Not a valid object name: '%s'."), start_name);
 	}
 
-	switch (dwim_ref(start_name, strlen(start_name), oid.hash, &real_ref)) {
+	switch (dwim_ref(start_name, strlen(start_name), &oid, &real_ref)) {
 	case 0:
 		/* Not branching from any existing branch */
 		if (explicit_tracking)
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 2fb60d6d48..d74c73f777 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -823,7 +823,7 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info)
 		if (e->flags & UNINTERESTING)
 			continue;
 
-		if (dwim_ref(e->name, strlen(e->name), oid.hash, &full_name) != 1)
+		if (dwim_ref(e->name, strlen(e->name), &oid, &full_name) != 1)
 			continue;
 
 		if (refspecs) {
diff --git a/builtin/log.c b/builtin/log.c
index d81a09051e..ba9d4cd786 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -975,7 +975,7 @@ static char *find_branch_name(struct rev_info *rev)
 		return NULL;
 	ref = rev->cmdline.rev[positive].name;
 	tip_oid = &rev->cmdline.rev[positive].item->oid;
-	if (dwim_ref(ref, strlen(ref), branch_oid.hash, &full_ref) &&
+	if (dwim_ref(ref, strlen(ref), &branch_oid, &full_ref) &&
 	    skip_prefix(full_ref, "refs/heads/", &v) &&
 	    !oidcmp(tip_oid, &branch_oid))
 		branch = xstrdup(v);
diff --git a/builtin/merge-base.c b/builtin/merge-base.c
index 6dbd167d3b..e99f5405ce 100644
--- a/builtin/merge-base.c
+++ b/builtin/merge-base.c
@@ -156,7 +156,7 @@ static int handle_fork_point(int argc, const char **argv)
 	struct commit_list *bases;
 	int i, ret = 0;
 
-	switch (dwim_ref(argv[0], strlen(argv[0]), oid.hash, &refname)) {
+	switch (dwim_ref(argv[0], strlen(argv[0]), &oid, &refname)) {
 	case 0:
 		die("No such ref: '%s'", argv[0]);
 	case 1:
diff --git a/builtin/merge.c b/builtin/merge.c
index 99d2df965f..6071dbfe34 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -454,7 +454,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
 	if (!remote_head)
 		die(_("'%s' does not point to a commit"), remote);
 
-	if (dwim_ref(remote, strlen(remote), branch_head.hash, &found_ref) > 0) {
+	if (dwim_ref(remote, strlen(remote), &branch_head, &found_ref) > 0) {
 		if (starts_with(found_ref, "refs/heads/")) {
 			strbuf_addf(msg, "%s\t\tbranch '%s' of .\n",
 				    oid_to_hex(&branch_head), remote);
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index a8d7e6f7ae..74aa644cbb 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -133,7 +133,7 @@ static void show_rev(int type, const struct object_id *oid, const char *name)
 			struct object_id discard;
 			char *full;
 
-			switch (dwim_ref(name, strlen(name), discard.hash, &full)) {
+			switch (dwim_ref(name, strlen(name), &discard, &full)) {
 			case 0:
 				/*
 				 * Not found -- not a ref.  We could
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 0237be4975..722a7f4bec 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -720,7 +720,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 			die(Q_("only %d entry can be shown at one time.",
 			       "only %d entries can be shown at one time.",
 			       MAX_REVS), MAX_REVS);
-		if (!dwim_ref(*av, strlen(*av), oid.hash, &ref))
+		if (!dwim_ref(*av, strlen(*av), &oid, &ref))
 			die(_("no such ref %s"), *av);
 
 		/* Has the base been specified? */
diff --git a/bundle.c b/bundle.c
index 12658c5c9f..93290962c9 100644
--- a/bundle.c
+++ b/bundle.c
@@ -338,7 +338,7 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs)
 
 		if (e->item->flags & UNINTERESTING)
 			continue;
-		if (dwim_ref(e->name, strlen(e->name), oid.hash, &ref) != 1)
+		if (dwim_ref(e->name, strlen(e->name), &oid, &ref) != 1)
 			goto skip_write_ref;
 		if (read_ref_full(e->name, RESOLVE_REF_READING, &oid, &flag))
 			flag = 0;
diff --git a/refs.c b/refs.c
index 9c1f881328..9bb555e7ff 100644
--- a/refs.c
+++ b/refs.c
@@ -456,15 +456,15 @@ static char *substitute_branch_name(const char **string, int *len)
 	return NULL;
 }
 
-int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref)
+int dwim_ref(const char *str, int len, struct object_id *oid, char **ref)
 {
 	char *last_branch = substitute_branch_name(&str, &len);
-	int   refs_found  = expand_ref(str, len, sha1, ref);
+	int   refs_found  = expand_ref(str, len, oid, ref);
 	free(last_branch);
 	return refs_found;
 }
 
-int expand_ref(const char *str, int len, unsigned char *sha1, char **ref)
+int expand_ref(const char *str, int len, struct object_id *oid, char **ref)
 {
 	const char **p, *r;
 	int refs_found = 0;
@@ -472,15 +472,16 @@ int expand_ref(const char *str, int len, unsigned char *sha1, char **ref)
 
 	*ref = NULL;
 	for (p = ref_rev_parse_rules; *p; p++) {
-		unsigned char sha1_from_ref[20];
-		unsigned char *this_result;
+		struct object_id oid_from_ref;
+		struct object_id *this_result;
 		int flag;
 
-		this_result = refs_found ? sha1_from_ref : sha1;
+		this_result = refs_found ? &oid_from_ref : oid;
 		strbuf_reset(&fullref);
 		strbuf_addf(&fullref, *p, len, str);
 		r = resolve_ref_unsafe(fullref.buf, RESOLVE_REF_READING,
-				       this_result, &flag);
+				       this_result ? this_result->hash : NULL,
+				       &flag);
 		if (r) {
 			if (!refs_found++)
 				*ref = xstrdup(r);
diff --git a/refs.h b/refs.h
index 30fbd6f683..0d864b0ab1 100644
--- a/refs.h
+++ b/refs.h
@@ -139,8 +139,8 @@ int resolve_gitlink_ref(const char *submodule, const char *refname,
  */
 int refname_match(const char *abbrev_name, const char *full_name);
 
-int expand_ref(const char *str, int len, unsigned char *sha1, char **ref);
-int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
+int expand_ref(const char *str, int len, struct object_id *oid, char **ref);
+int dwim_ref(const char *str, int len, struct object_id *oid, char **ref);
 int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
 
 /*
diff --git a/remote.c b/remote.c
index 698a890a83..685e776a65 100644
--- a/remote.c
+++ b/remote.c
@@ -1629,7 +1629,7 @@ static void set_merge(struct branch *ret)
 		    strcmp(ret->remote_name, "."))
 			continue;
 		if (dwim_ref(ret->merge_name[i], strlen(ret->merge_name[i]),
-			     oid.hash, &ref) == 1)
+			     &oid, &ref) == 1)
 			ret->merge[i]->dst = ref;
 		else
 			ret->merge[i]->dst = xstrdup(ret->merge_name[i]);
diff --git a/sha1_name.c b/sha1_name.c
index c7c5ab376c..d8ff831759 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -603,7 +603,7 @@ static int get_oid_basic(const char *str, int len, struct object_id *oid,
 
 	if (len == GIT_SHA1_HEXSZ && !get_oid_hex(str, oid)) {
 		if (warn_ambiguous_refs && warn_on_object_refname_ambiguity) {
-			refs_found = dwim_ref(str, len, tmp_oid.hash, &real_ref);
+			refs_found = dwim_ref(str, len, &tmp_oid, &real_ref);
 			if (refs_found > 0) {
 				warning(warn_msg, len, str);
 				if (advice_object_name_warning)
@@ -654,11 +654,11 @@ static int get_oid_basic(const char *str, int len, struct object_id *oid,
 
 	if (!len && reflog_len)
 		/* allow "@{...}" to mean the current branch reflog */
-		refs_found = dwim_ref("HEAD", 4, oid->hash, &real_ref);
+		refs_found = dwim_ref("HEAD", 4, oid, &real_ref);
 	else if (reflog_len)
 		refs_found = dwim_log(str, len, oid->hash, &real_ref);
 	else
-		refs_found = dwim_ref(str, len, oid->hash, &real_ref);
+		refs_found = dwim_ref(str, len, oid, &real_ref);
 
 	if (!refs_found)
 		return -1;
diff --git a/upload-pack.c b/upload-pack.c
index e25f725c0f..030eba5a0c 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -787,7 +787,7 @@ static void receive_needs(void)
 		if (skip_prefix(line, "deepen-not ", &arg)) {
 			char *ref = NULL;
 			struct object_id oid;
-			if (expand_ref(arg, strlen(arg), oid.hash, &ref) != 1)
+			if (expand_ref(arg, strlen(arg), &oid, &ref) != 1)
 				die("git upload-pack: ambiguous deepen-not: %s", line);
 			string_list_append(&deepen_not, ref);
 			free(ref);
diff --git a/wt-status.c b/wt-status.c
index 29bc64cc02..a798b7ea1e 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -1449,7 +1449,7 @@ static void wt_status_get_detached_from(struct wt_status_state *state)
 		return;
 	}
 
-	if (dwim_ref(cb.buf.buf, cb.buf.len, oid.hash, &ref) == 1 &&
+	if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
 	    /* sha1 is a commit? match without further lookup */
 	    (!oidcmp(&cb.noid, &oid) ||
 	     /* perhaps sha1 is a tag, try to dereference to a commit */

-- 
2.15.0.rc0.271.g36b669edcc
Previous: brian m. carlsonNext: brian m. carlson
Message 7 of 30 in “object_id part 10”
  1. 00/25 object_id part 10brian m. carlson, Oct 15, 2017
  2. 02/25 refs/files-backend: convert struct ref_to_prune to object_idbrian m. carlson, Oct 15, 2017
  3. 05/25 refs: prevent accidental NULL dereference in write_pseudorefbrian m. carlson, Oct 15, 2017
  4. 06/25 refs: update ref transactions to use struct object_idbrian m. carlson, Oct 15, 2017
  5. 07/25 Convert check_connected to use struct object_idbrian m. carlson, Oct 15, 2017
  6. 08/25 refs: convert resolve_refdup and refs_resolve_refdup to struct object_idbrian m. carlson, Oct 15, 2017
  7. 10/25 refs: convert dwim_ref and expand_ref to struct object_idbrian m. carlson, Oct 15, 2017
  8. 11/25 builtin/reflog: convert remaining unsigned char uses to object_idbrian m. carlson, Oct 15, 2017
  9. 15/25 refs: convert peel_ref to struct object_idbrian m. carlson, Oct 15, 2017
  10. 14/25 builtin/pack-objects: convert to struct object_idbrian m. carlson, Oct 15, 2017
  11. 18/25 sha1_file: convert index_path and index_fd to struct object_idbrian m. carlson, Oct 15, 2017
  12. 23/25 refs: convert peel_object to struct object_idbrian m. carlson, Oct 15, 2017
  13. 24/25 refs: convert read_raw_ref backends to struct object_idbrian m. carlson, Oct 15, 2017
  14. 19/25 Convert remaining callers of resolve_gitlink_ref to object_idbrian m. carlson, Oct 15, 2017
  15. 25/25 refs/files-backend: convert static functions to object_idbrian m. carlson, Oct 15, 2017
  16. 20/25 refs: convert resolve_gitlink_ref to struct object_idbrian m. carlson, Oct 15, 2017
  17. 21/25 worktree: convert struct worktree to object_idbrian m. carlson, Oct 15, 2017
  18. 17/25 refs: convert reflog_expire parameter to struct object_idbrian m. carlson, Oct 15, 2017
  19. 22/25 refs: convert resolve_ref_unsafe to struct object_idbrian m. carlson, Oct 15, 2017
  20. 16/25 refs: convert read_ref_at to struct object_idbrian m. carlson, Oct 15, 2017
  21. 13/25 pack-bitmap: convert traverse_bitmap_commit_list to object_idbrian m. carlson, Oct 15, 2017
  22. 09/25 refs: convert read_ref and read_ref_full to object_idbrian m. carlson, Oct 15, 2017
  23. 12/25 refs: convert dwim_log to struct object_idbrian m. carlson, Oct 15, 2017
  24. 01/25 walker: convert to struct object_idbrian m. carlson, Oct 15, 2017
  25. 03/25 refs: convert delete_ref and refs_delete_ref to struct object_idbrian m. carlson, Oct 15, 2017
  26. 04/25 refs: convert update_ref and refs_update_ref to use struct object_idbrian m. carlson, Oct 15, 2017
  27. Junio C HamanoOct 16, 2017
  28. brian m. carlsonOct 16, 2017
  29. Kevin DaudtOct 16, 2017
  30. Junio C HamanoOct 17, 2017

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