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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
	"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
	"Jeff King" <peff@peff.net>, "Taylor Blau" <me@ttaylorr.com>,
	"Elijah Newren" <newren@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH v2 2/8] object.c: add a utility function for "expected type X, got Y"
Date: Tue, 20 Apr 2021 15:36:54 +0200
Message-ID: <patch-2.8-1b472fcd85-20210420T133218Z-avarab@gmail.com> (raw)
In-Reply-To: <cover-0.8-0000000000-20210420T133218Z-avarab@gmail.com>

Refactor various "Object X is not Y" error messages so that they use
the same message as the long-standing object_as_type() error
message. Now we'll consistently report e.g. that we got a commit when
we expected a tag, not just that the object is not a tag.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/index-pack.c |  9 +++------
 combine-diff.c       |  3 +--
 commit.c             | 10 ++++------
 merge-recursive.c    |  1 +
 object.c             | 25 ++++++++++++++++++++++++-
 object.h             |  5 +++++
 tree.c               |  7 ++++---
 7 files changed, 42 insertions(+), 18 deletions(-)

diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index c0e3768c32..eabd9d4677 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -218,8 +218,8 @@ static int mark_link(struct object *obj, enum object_type type,
 	if (!obj)
 		return -1;
 
-	if (type != OBJ_ANY && obj->type != type)
-		die(_("object type mismatch at %s"), oid_to_hex(&obj->oid));
+	if (type != OBJ_ANY)
+		oid_is_type_or_die(&obj->oid, obj->type, &type);
 
 	obj->flags |= FLAG_LINK;
 	return 0;
@@ -241,10 +241,7 @@ static unsigned check_object(struct object *obj)
 		if (type <= 0)
 			die(_("did not receive expected object %s"),
 			      oid_to_hex(&obj->oid));
-		if (type != obj->type)
-			die(_("object %s: expected type %s, found %s"),
-			    oid_to_hex(&obj->oid),
-			    type_name(obj->type), type_name(type));
+		oid_is_type_or_die(&obj->oid, obj->type, &type);
 		obj->flags |= FLAG_CHECKED;
 		return 1;
 	}
diff --git a/combine-diff.c b/combine-diff.c
index 06635f91bc..aa767dbb8e 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -333,8 +333,7 @@ static char *grab_blob(struct repository *r,
 		free_filespec(df);
 	} else {
 		blob = read_object_file(oid, &type, size);
-		if (type != OBJ_BLOB)
-			die("object '%s' is not a blob!", oid_to_hex(oid));
+		oid_is_type_or_die(oid, OBJ_BLOB, &type);
 	}
 	return blob;
 }
diff --git a/commit.c b/commit.c
index 3580c62b92..3d7f1fba0c 100644
--- a/commit.c
+++ b/commit.c
@@ -304,9 +304,7 @@ const void *repo_get_commit_buffer(struct repository *r,
 		if (!ret)
 			die("cannot read commit object %s",
 			    oid_to_hex(&commit->object.oid));
-		if (type != OBJ_COMMIT)
-			die("expected commit for %s, got %s",
-			    oid_to_hex(&commit->object.oid), type_name(type));
+		oid_is_type_or_die(&commit->object.oid, OBJ_COMMIT, &type);
 		if (sizep)
 			*sizep = size;
 	}
@@ -494,10 +492,10 @@ int repo_parse_commit_internal(struct repository *r,
 		return quiet_on_missing ? -1 :
 			error("Could not read %s",
 			     oid_to_hex(&item->object.oid));
-	if (type != OBJ_COMMIT) {
+	ret = oid_is_type_or_error(&item->object.oid, OBJ_COMMIT, &type);
+	if (ret) {
 		free(buffer);
-		return error("Object %s not a commit",
-			     oid_to_hex(&item->object.oid));
+		return ret;
 	}
 
 	ret = parse_commit_buffer(r, item, buffer, size, 0);
diff --git a/merge-recursive.c b/merge-recursive.c
index 7618303f7b..b952106203 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -2999,6 +2999,7 @@ static int read_oid_strbuf(struct merge_options *opt,
 	if (!buf)
 		return err(opt, _("cannot read object %s"), oid_to_hex(oid));
 	if (type != OBJ_BLOB) {
+		const char* msg = oid_is_type_or_die_msg(oid, OBJ_BLOB, &type);
 		free(buf);
 		return err(opt, _("object %s is not a blob"), oid_to_hex(oid));
 	}
diff --git a/object.c b/object.c
index 3c962da6c9..9e06c0ee92 100644
--- a/object.c
+++ b/object.c
@@ -153,6 +153,29 @@ void *create_object(struct repository *r, const struct object_id *oid, void *o)
 	return obj;
 }
 
+static const char *object_type_mismatch_msg = N_("object %s is a %s, not a %s");
+
+void oid_is_type_or_die(const struct object_id *oid,
+			enum object_type want,
+			enum object_type *type)
+{
+	if (want == *type)
+		return;
+	die(_(object_type_mismatch_msg), oid_to_hex(oid),
+	    type_name(*type), type_name(want));
+}
+
+int oid_is_type_or_error(const struct object_id *oid,
+			 enum object_type want,
+			 enum object_type *type)
+{
+	if (want == *type)
+		return 0;
+	return error(_(object_type_mismatch_msg),
+		     oid_to_hex(oid), type_name(*type),
+		     type_name(want));
+}
+
 void *object_as_type(struct object *obj, enum object_type type, int quiet)
 {
 	if (obj->type == type)
@@ -166,7 +189,7 @@ void *object_as_type(struct object *obj, enum object_type type, int quiet)
 	}
 	else {
 		if (!quiet)
-			error(_("object %s is a %s, not a %s"),
+			error(_(object_type_mismatch_msg),
 			      oid_to_hex(&obj->oid),
 			      type_name(obj->type), type_name(type));
 		return NULL;
diff --git a/object.h b/object.h
index 85e7491815..f8609a8518 100644
--- a/object.h
+++ b/object.h
@@ -123,6 +123,11 @@ void *create_object(struct repository *r, const struct object_id *oid, void *obj
 
 void *object_as_type(struct object *obj, enum object_type type, int quiet);
 
+void oid_is_type_or_die(const struct object_id *oid, enum object_type want,
+			enum object_type *type);
+int oid_is_type_or_error(const struct object_id *oid, enum object_type want,
+			 enum object_type *type);
+
 /*
  * Returns the object, having parsed it to find out what it is.
  *
diff --git a/tree.c b/tree.c
index e9d2bd7ffd..f1c6e8f647 100644
--- a/tree.c
+++ b/tree.c
@@ -131,6 +131,7 @@ int parse_tree_gently(struct tree *item, int quiet_on_missing)
 	enum object_type type;
 	void *buffer;
 	unsigned long size;
+	int ret;
 
 	if (item->object.parsed)
 		return 0;
@@ -139,10 +140,10 @@ int parse_tree_gently(struct tree *item, int quiet_on_missing)
 		return quiet_on_missing ? -1 :
 			error("Could not read %s",
 			     oid_to_hex(&item->object.oid));
-	if (type != OBJ_TREE) {
+	ret = oid_is_type_or_error(&item->object.oid, OBJ_TREE, &type);
+	if (ret) {
 		free(buffer);
-		return error("Object %s not a tree",
-			     oid_to_hex(&item->object.oid));
+		return ret;
 	}
 	return parse_tree_buffer(item, buffer, size);
 }
-- 
2.31.1.723.ga5d7868e4a


  parent reply index

Thread overview: 142+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-22  0:33 [PATCH 0/2] Pull objects of various types Daniel Barkalow
2005-06-22  0:35 ` [PATCH 1/2] Parse tags for absent objects Daniel Barkalow
2021-03-08 20:04   ` [PATCH 0/7] improve reporting of unexpected objects Ævar Arnfjörð Bjarmason
2021-03-28  2:13     ` [PATCH v2 00/10] " Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 01/10] object.c: stop supporting len == -1 in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-03-28  5:35         ` Junio C Hamano
2021-03-28 15:46           ` Ævar Arnfjörð Bjarmason
2021-03-28 18:25             ` Junio C Hamano
2021-04-22 18:09               ` Felipe Contreras
2021-03-28  2:13       ` [PATCH v2 02/10] object.c: refactor type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 03/10] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 04/10] object-file.c: make oid_object_info() " Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 05/10] object-name.c: make dependency on object_type order more obvious Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 06/10] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 07/10] object.c: add a utility function for "expected type X, got Y" Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 08/10] object.c: add and use oid_is_type_or_die_msg() function Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 09/10] object tests: add test for unexpected objects in tags Ævar Arnfjörð Bjarmason
2021-03-28  2:13       ` [PATCH v2 10/10] tag: don't misreport type of tagged objects in errors Ævar Arnfjörð Bjarmason
2021-03-30  5:50         ` Junio C Hamano
2021-03-31 11:02           ` Jeff King
2021-03-31 18:05             ` Junio C Hamano
2021-03-31 18:31             ` Ævar Arnfjörð Bjarmason
2021-03-31 18:59               ` Jeff King
2021-03-31 20:46                 ` Ævar Arnfjörð Bjarmason
2021-04-01  7:54                   ` Jeff King
2021-04-01  8:32                     ` [PATCH] ref-filter: fix NULL check for parse object failure Jeff King
2021-04-01 13:56                       ` [PATCH v2 0/5] mktag tests & fix for-each-ref segfault Ævar Arnfjörð Bjarmason
2021-04-01 13:56                         ` [PATCH v2 1/5] mktag tests: parse out options in helper Ævar Arnfjörð Bjarmason
2021-04-01 13:56                         ` [PATCH v2 2/5] mktag tests: invert --no-strict test Ævar Arnfjörð Bjarmason
2021-04-01 13:56                         ` [PATCH v2 3/5] mktag tests: do fsck on failure Ævar Arnfjörð Bjarmason
2021-04-01 13:56                         ` [PATCH v2 4/5] mktag tests: test for maybe segfaulting for-each-ref Ævar Arnfjörð Bjarmason
2021-04-01 13:56                         ` [PATCH v2 5/5] ref-filter: fix NULL check for parse object failure Ævar Arnfjörð Bjarmason
2021-04-01 19:19                           ` Ramsay Jones
2021-04-01 19:56                         ` [PATCH v2 0/5] mktag tests & fix for-each-ref segfault Junio C Hamano
2021-04-02 11:37                           ` Ævar Arnfjörð Bjarmason
2021-04-02 20:51                             ` Junio C Hamano
2021-04-01 19:52                       ` [PATCH] ref-filter: fix NULL check for parse object failure Junio C Hamano
2021-03-31 18:41             ` [PATCH v2 10/10] tag: don't misreport type of tagged objects in errors Junio C Hamano
2021-03-31 19:00               ` Jeff King
2021-03-28  9:27       ` [PATCH v2 00/10] improve reporting of unexpected objects Jeff King
2021-03-29 13:34         ` Ævar Arnfjörð Bjarmason
2021-03-31 10:43           ` Jeff King
2021-04-09  8:07       ` [PATCH 0/2] blob/object.c: trivial readability improvements Ævar Arnfjörð Bjarmason
2021-04-09  8:07         ` [PATCH 1/2] blob.c: remove buffer & size arguments to parse_blob_buffer() Ævar Arnfjörð Bjarmason
2021-04-09 17:51           ` Jeff King
2021-04-09 22:31             ` Junio C Hamano
2021-04-10 12:57             ` Ævar Arnfjörð Bjarmason
2021-04-10 13:01               ` Ævar Arnfjörð Bjarmason
2021-04-13  8:25               ` Jeff King
2021-04-09  8:07         ` [PATCH 2/2] object.c: initialize automatic variable in lookup_object() Ævar Arnfjörð Bjarmason
2021-04-09 17:53           ` Jeff King
2021-04-09 22:32             ` Junio C Hamano
2021-04-09  8:32         ` [PATCH 0/6] {tag,object}*.c: refactorings + prep for a larger change Ævar Arnfjörð Bjarmason
2021-04-09  8:32           ` [PATCH 1/6] object.c: stop supporting len == -1 in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-09 18:06             ` Jeff King
2021-04-09 18:10               ` Jeff King
2021-04-09  8:32           ` [PATCH 2/6] object.c: remove "gently" argument to type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-09 18:10             ` Jeff King
2021-04-09  8:32           ` [PATCH 3/6] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-04-09 18:14             ` Jeff King
2021-04-09 19:42               ` Ævar Arnfjörð Bjarmason
2021-04-09 21:29                 ` Jeff King
2021-04-09  8:32           ` [PATCH 4/6] object-file.c: make oid_object_info() " Ævar Arnfjörð Bjarmason
2021-04-09 18:24             ` Jeff King
2021-04-09  8:32           ` [PATCH 5/6] object-name.c: make dependency on object_type order more obvious Ævar Arnfjörð Bjarmason
2021-04-09 18:36             ` Jeff King
2021-04-09  8:32           ` [PATCH 6/6] tag.c: use type_from_string_gently() when parsing tags Ævar Arnfjörð Bjarmason
2021-04-09 18:42             ` Jeff King
2021-04-09  8:49           ` [PATCH 0/7] object.c: add and use "is expected" utility function + object_as_type() use Ævar Arnfjörð Bjarmason
2021-04-09  8:49             ` [PATCH 1/7] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-04-09  8:49             ` [PATCH 2/7] object.c: add a utility function for "expected type X, got Y" Ævar Arnfjörð Bjarmason
2021-04-09  8:49             ` [PATCH 3/7] object.c: add and use oid_is_type_or_die_msg() function Ævar Arnfjörð Bjarmason
2021-04-09  8:49             ` [PATCH 4/7] commit-graph: use obj->type, not object_as_type() Ævar Arnfjörð Bjarmason
2021-04-09  8:50             ` [PATCH 5/7] commit.c: don't use deref_tag() -> object_as_type() Ævar Arnfjörð Bjarmason
2021-04-09  8:50             ` [PATCH 6/7] object.c: normalize brace style in object_as_type() Ævar Arnfjörð Bjarmason
2021-04-09  8:50             ` [PATCH 7/7] object.c: remove "quiet" parameter from object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:36             ` [PATCH v2 0/8] object.c: add and use "is expected" utility function + object_as_type() use Ævar Arnfjörð Bjarmason
2021-04-20 13:36               ` [PATCH v2 1/8] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-04-20 13:36               ` Ævar Arnfjörð Bjarmason [this message]
2021-04-21 22:02                 ` [PATCH v2 2/8] object.c: add a utility function for "expected type X, got Y" Jonathan Tan
2021-04-22  6:10                   ` Ævar Arnfjörð Bjarmason
2021-04-20 13:36               ` [PATCH v2 3/8] object.c: add and use oid_is_type_or_die_msg() function Ævar Arnfjörð Bjarmason
2021-04-21 22:07                 ` Jonathan Tan
2021-04-21 23:28                 ` Josh Steadmon
2021-04-28  4:12                   ` Junio C Hamano
2021-04-20 13:36               ` [PATCH v2 4/8] commit-graph: use obj->type, not object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:36               ` [PATCH v2 5/8] branch tests: assert lookup_commit_reference_gently() error Ævar Arnfjörð Bjarmason
2021-04-20 13:36               ` [PATCH v2 6/8] commit.c: don't use deref_tag() -> object_as_type() Ævar Arnfjörð Bjarmason
2021-04-21 22:26                 ` Jonathan Tan
2021-04-20 13:36               ` [PATCH v2 7/8] object.c: normalize brace style in object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:37               ` [PATCH v2 8/8] object.c: remove "quiet" parameter from object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:00           ` [PATCH v2 00/10] {tag,object}*.c: refactorings + prep for a larger change Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 01/10] object.c: stop supporting len == -1 in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 02/10] object.c: remove "gently" argument to type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 03/10] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 04/10] object-file.c: make oid_object_info() " Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 05/10] object-name.c: make dependency on object_type order more obvious Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 06/10] tag.c: use type_from_string_gently() when parsing tags Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 07/10] hash-object: pass along type length to object.c Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 08/10] hash-object: refactor nested else/if/if into else if/else if Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 09/10] hash-object: show usage on invalid --type Ævar Arnfjörð Bjarmason
2021-04-20 13:00             ` [PATCH v2 10/10] object.c: move type_from_string() code to its last user Ævar Arnfjörð Bjarmason
2021-04-20 12:50         ` [PATCH v2 00/10] object.c et al: tests, small bug fixes etc Ævar Arnfjörð Bjarmason
2021-04-20 12:50           ` [PATCH v2 01/10] cat-file tests: test for bogus type name handling Ævar Arnfjörð Bjarmason
2021-04-29  4:15             ` Junio C Hamano
2021-04-20 12:50           ` [PATCH v2 02/10] hash-object tests: more detailed test for invalid type Ævar Arnfjörð Bjarmason
2021-04-20 12:50           ` [PATCH v2 03/10] mktree tests: add test for invalid object type Ævar Arnfjörð Bjarmason
2021-04-20 12:50           ` [PATCH v2 04/10] object-file.c: take type id, not string, in read_object_with_reference() Ævar Arnfjörð Bjarmason
2021-04-29  4:37             ` Junio C Hamano
2021-04-20 12:50           ` [PATCH v2 05/10] {commit,tree,blob,tag}.c: add a create_{commit,tree,blob,tag}() Ævar Arnfjörð Bjarmason
2021-04-29  4:45             ` Junio C Hamano
2021-04-29 12:01               ` Ævar Arnfjörð Bjarmason
2021-04-20 12:50           ` [PATCH v2 06/10] blob.c: remove parse_blob_buffer() Ævar Arnfjörð Bjarmason
2021-04-29  4:51             ` Junio C Hamano
2021-04-20 12:50           ` [PATCH v2 07/10] object.c: simplify return semantic of parse_object_buffer() Ævar Arnfjörð Bjarmason
2021-04-20 12:50           ` [PATCH v2 08/10] object.c: don't go past "len" under die() in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-29  4:55             ` Junio C Hamano
2021-04-20 12:50           ` [PATCH v2 09/10] mktree: stop setting *ntr++ to NIL Ævar Arnfjörð Bjarmason
2021-04-29  5:01             ` Junio C Hamano
2021-04-20 12:50           ` [PATCH v2 10/10] mktree: emit a more detailed error when the <type> is invalid Ævar Arnfjörð Bjarmason
2021-03-08 20:04   ` [PATCH 1/7] object.c: refactor type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-03-08 20:52     ` Taylor Blau
2021-03-09 10:46     ` Jeff King
2021-03-08 20:04   ` [PATCH 2/7] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-03-08 20:56     ` Taylor Blau
2021-03-08 21:48     ` Junio C Hamano
2021-03-08 20:04   ` [PATCH 3/7] oid_object_info(): " Ævar Arnfjörð Bjarmason
2021-03-08 21:54     ` Junio C Hamano
2021-03-08 22:32       ` Junio C Hamano
2021-03-09 10:34     ` Jeff King
2021-03-08 20:04   ` [PATCH 4/7] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-03-08 20:04   ` [PATCH 5/7] object.c: add a utility function for "expected type X, got Y" Ævar Arnfjörð Bjarmason
2021-03-08 20:59     ` Taylor Blau
2021-03-08 22:15     ` Junio C Hamano
2021-03-08 20:04   ` [PATCH 6/7] object tests: add test for unexpected objects in tags Ævar Arnfjörð Bjarmason
2021-03-09 10:44     ` Jeff King
2021-03-28  1:35       ` Ævar Arnfjörð Bjarmason
2021-03-28  9:06         ` Jeff King
2021-03-28 15:39           ` Ævar Arnfjörð Bjarmason
2021-03-29  9:16             ` Jeff King
2021-03-08 20:04   ` [PATCH 7/7] tag: don't misreport type of tagged objects in errors Ævar Arnfjörð Bjarmason
2005-06-22  0:35 ` [PATCH 2/2] Pull misc objects Daniel Barkalow

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	git clone --mirror https://lore.kernel.org/git/0 git/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 git git/ https://lore.kernel.org/git \
		git@vger.kernel.org
	public-inbox-index git

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.git


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git