Merge branch 'ps/cat-file-null-output'

"git cat-file --batch" and friends learned "-Z" that uses NUL
delimiter for both input and output.

* ps/cat-file-null-output:
  cat-file: add option '-Z' that delimits input and output with NUL
  cat-file: simplify reading from standard input
  strbuf: provide CRLF-aware helper to read until a specified delimiter
  t1006: modernize test style to use `test_cmp`
  t1006: don't strip timestamps from expected results

Documentation/git-cat-file.txt

@@ -14,7 +14,7 @@ SYNOPSIS
 'git cat-file' (-t | -s) [--allow-unknown-type] <object>
 'git cat-file' (--batch | --batch-check | --batch-command) [--batch-all-objects]
 	     [--buffer] [--follow-symlinks] [--unordered]
-	     [--textconv | --filters] [-z]
+	     [--textconv | --filters] [-Z]
 'git cat-file' (--textconv | --filters)
 	     [<rev>:<path|tree-ish> | --path=<path|tree-ish> <rev>]
 
@@ -243,10 +243,16 @@ respectively print:
 	/etc/passwd
 --
 
+-Z::
+	Only meaningful with `--batch`, `--batch-check`, or
+	`--batch-command`; input and output is NUL-delimited instead of
+	newline-delimited.
+
 -z::
 	Only meaningful with `--batch`, `--batch-check`, or
 	`--batch-command`; input is NUL-delimited instead of
-	newline-delimited.
+	newline-delimited. This option is deprecated in favor of
+	`-Z` as the output can otherwise be ambiguous.
 
 
 OUTPUT
@@ -384,6 +390,11 @@ notdir SP <size> LF
 is printed when, during symlink resolution, a file is used as a
 directory name.
 
+Alternatively, when `-Z` is passed, the line feeds in any of the above examples
+are replaced with NUL terminators. This ensures that output will be parsable if
+the output itself would contain a linefeed and is thus recommended for
+scripting purposes.
+
 CAVEATS
 -------
 

builtin/cat-file.c

@@ -42,7 +42,8 @@ struct batch_options {
 	int all_objects;
 	int unordered;
 	int transform_mode; /* may be 'w' or 'c' for --filters or --textconv */
-	int nul_terminated;
+	char input_delim;
+	char output_delim;
 	const char *format;
 };
 
@@ -437,11 +438,12 @@ static void print_object_or_die(struct batch_options *opt, struct expand_data *d
 	}
 }
 
-static void print_default_format(struct strbuf *scratch, struct expand_data *data)
+static void print_default_format(struct strbuf *scratch, struct expand_data *data,
+				 struct batch_options *opt)
 {
-	strbuf_addf(scratch, "%s %s %"PRIuMAX"\n", oid_to_hex(&data->oid),
+	strbuf_addf(scratch, "%s %s %"PRIuMAX"%c", oid_to_hex(&data->oid),
 		    type_name(data->type),
-		    (uintmax_t)data->size);
+		    (uintmax_t)data->size, opt->output_delim);
 }
 
 /*
@@ -470,8 +472,8 @@ static void batch_object_write(const char *obj_name,
 						       &data->oid, &data->info,
 						       OBJECT_INFO_LOOKUP_REPLACE);
 		if (ret < 0) {
-			printf("%s missing\n",
+			printf("%s missing%c",
-			       obj_name ? obj_name : oid_to_hex(&data->oid));
+			       obj_name ? obj_name : oid_to_hex(&data->oid), opt->output_delim);
 			fflush(stdout);
 			return;
 		}
@@ -492,17 +494,17 @@ static void batch_object_write(const char *obj_name,
 	strbuf_reset(scratch);
 
 	if (!opt->format) {
-		print_default_format(scratch, data);
+		print_default_format(scratch, data, opt);
 	} else {
 		strbuf_expand(scratch, opt->format, expand_format, data);
-		strbuf_addch(scratch, '\n');
+		strbuf_addch(scratch, opt->output_delim);
 	}
 
 	batch_write(opt, scratch->buf, scratch->len);
 
 	if (opt->batch_mode == BATCH_MODE_CONTENTS) {
 		print_object_or_die(opt, data);
-		batch_write(opt, "\n", 1);
+		batch_write(opt, &opt->output_delim, 1);
 	}
 }
 
@@ -520,22 +522,25 @@ static void batch_one_object(const char *obj_name,
 	if (result != FOUND) {
 		switch (result) {
 		case MISSING_OBJECT:
-			printf("%s missing\n", obj_name);
+			printf("%s missing%c", obj_name, opt->output_delim);
 			break;
 		case SHORT_NAME_AMBIGUOUS:
-			printf("%s ambiguous\n", obj_name);
+			printf("%s ambiguous%c", obj_name, opt->output_delim);
 			break;
 		case DANGLING_SYMLINK:
-			printf("dangling %"PRIuMAX"\n%s\n",
+			printf("dangling %"PRIuMAX"%c%s%c",
-			       (uintmax_t)strlen(obj_name), obj_name);
+			       (uintmax_t)strlen(obj_name),
+			       opt->output_delim, obj_name, opt->output_delim);
 			break;
 		case SYMLINK_LOOP:
-			printf("loop %"PRIuMAX"\n%s\n",
+			printf("loop %"PRIuMAX"%c%s%c",
-			       (uintmax_t)strlen(obj_name), obj_name);
+			       (uintmax_t)strlen(obj_name),
+			       opt->output_delim, obj_name, opt->output_delim);
 			break;
 		case NOT_DIR:
-			printf("notdir %"PRIuMAX"\n%s\n",
+			printf("notdir %"PRIuMAX"%c%s%c",
-			       (uintmax_t)strlen(obj_name), obj_name);
+			       (uintmax_t)strlen(obj_name),
+			       opt->output_delim, obj_name, opt->output_delim);
 			break;
 		default:
 			BUG("unknown get_sha1_with_context result %d\n",
@@ -547,9 +552,9 @@ static void batch_one_object(const char *obj_name,
 	}
 
 	if (ctx.mode == 0) {
-		printf("symlink %"PRIuMAX"\n%s\n",
+		printf("symlink %"PRIuMAX"%c%s%c",
 		       (uintmax_t)ctx.symlink_path.len,
-		       ctx.symlink_path.buf);
+		       opt->output_delim, ctx.symlink_path.buf, opt->output_delim);
 		fflush(stdout);
 		return;
 	}
@@ -694,20 +699,12 @@ static void batch_objects_command(struct batch_options *opt,
 	struct queued_cmd *queued_cmd = NULL;
 	size_t alloc = 0, nr = 0;
 
-	while (1) {
+	while (strbuf_getdelim_strip_crlf(&input, stdin, opt->input_delim) != EOF) {
-		int i, ret;
+		int i;
 		const struct parse_cmd *cmd = NULL;
 		const char *p = NULL, *cmd_end;
 		struct queued_cmd call = {0};
 
-		if (opt->nul_terminated)
-			ret = strbuf_getline_nul(&input, stdin);
-		else
-			ret = strbuf_getline(&input, stdin);
-
-		if (ret)
-			break;
-
 		if (!input.len)
 			die(_("empty command in input"));
 		if (isspace(*input.buf))
@@ -851,16 +848,7 @@ static int batch_objects(struct batch_options *opt)
 		goto cleanup;
 	}
 
-	while (1) {
+	while (strbuf_getdelim_strip_crlf(&input, stdin, opt->input_delim) != EOF) {
-		int ret;
-		if (opt->nul_terminated)
-			ret = strbuf_getline_nul(&input, stdin);
-		else
-			ret = strbuf_getline(&input, stdin);
-
-		if (ret == EOF)
-			break;
-
 		if (data.split_on_whitespace) {
 			/*
 			 * Split at first whitespace, tying off the beginning
@@ -929,6 +917,8 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
 	const char *exp_type = NULL, *obj_name = NULL;
 	struct batch_options batch = {0};
 	int unknown_type = 0;
+	int input_nul_terminated = 0;
+	int nul_terminated = 0;
 
 	const char * const usage[] = {
 		N_("git cat-file <type> <object>"),
@@ -936,7 +926,7 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
 		N_("git cat-file (-t | -s) [--allow-unknown-type] <object>"),
 		N_("git cat-file (--batch | --batch-check | --batch-command) [--batch-all-objects]\n"
 		   "             [--buffer] [--follow-symlinks] [--unordered]\n"
-		   "             [--textconv | --filters] [-z]"),
+		   "             [--textconv | --filters] [-Z]"),
 		N_("git cat-file (--textconv | --filters)\n"
 		   "             [<rev>:<path|tree-ish> | --path=<path|tree-ish> <rev>]"),
 		NULL
@@ -965,7 +955,9 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
 			N_("like --batch, but don't emit <contents>"),
 			PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
 			batch_option_callback),
-		OPT_BOOL('z', NULL, &batch.nul_terminated, N_("stdin is NUL-terminated")),
+		OPT_BOOL_F('z', NULL, &input_nul_terminated, N_("stdin is NUL-terminated"),
+			PARSE_OPT_HIDDEN),
+		OPT_BOOL('Z', NULL, &nul_terminated, N_("stdin and stdout is NUL-terminated")),
 		OPT_CALLBACK_F(0, "batch-command", &batch, N_("format"),
 			N_("read commands from stdin"),
 			PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
@@ -1024,9 +1016,18 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
 	else if (batch.all_objects)
 		usage_msg_optf(_("'%s' requires a batch mode"), usage, options,
 			       "--batch-all-objects");
-	else if (batch.nul_terminated)
+	else if (input_nul_terminated)
 		usage_msg_optf(_("'%s' requires a batch mode"), usage, options,
 			       "-z");
+	else if (nul_terminated)
+		usage_msg_optf(_("'%s' requires a batch mode"), usage, options,
+			       "-Z");
+
+	batch.input_delim = batch.output_delim = '\n';
+	if (input_nul_terminated)
+		batch.input_delim = '\0';
+	if (nul_terminated)
+		batch.input_delim = batch.output_delim = '\0';
 
 	/* Batch defaults */
 	if (batch.buffer_output < 0)

strbuf.c

@@ -721,11 +721,11 @@ static int strbuf_getdelim(struct strbuf *sb, FILE *fp, int term)
 	return 0;
 }
 
-int strbuf_getline(struct strbuf *sb, FILE *fp)
+int strbuf_getdelim_strip_crlf(struct strbuf *sb, FILE *fp, int term)
 {
-	if (strbuf_getwholeline(sb, fp, '\n'))
+	if (strbuf_getwholeline(sb, fp, term))
 		return EOF;
-	if (sb->buf[sb->len - 1] == '\n') {
+	if (term == '\n' && sb->buf[sb->len - 1] == '\n') {
 		strbuf_setlen(sb, sb->len - 1);
 		if (sb->len && sb->buf[sb->len - 1] == '\r')
 			strbuf_setlen(sb, sb->len - 1);
@@ -733,6 +733,11 @@ int strbuf_getline(struct strbuf *sb, FILE *fp)
 	return 0;
 }
 
+int strbuf_getline(struct strbuf *sb, FILE *fp)
+{
+	return strbuf_getdelim_strip_crlf(sb, fp, '\n');
+}
+
 int strbuf_getline_lf(struct strbuf *sb, FILE *fp)
 {
 	return strbuf_getdelim(sb, fp, '\n');

strbuf.h

@@ -475,6 +475,18 @@ int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint);
  */
 ssize_t strbuf_write(struct strbuf *sb, FILE *stream);
 
+/**
+ * Read from a FILE * until the specified terminator is encountered,
+ * overwriting the existing contents of the strbuf.
+ *
+ * Reading stops after the terminator or at EOF.  The terminator is
+ * removed from the buffer before returning.  If the terminator is LF
+ * and if it is preceded by a CR, then the whole CRLF is stripped.
+ * Returns 0 unless there was nothing left before EOF, in which case
+ * it returns `EOF`.
+ */
+int strbuf_getdelim_strip_crlf(struct strbuf *sb, FILE *fp, int term);
+
 /**
  * Read a line from a FILE *, overwriting the existing contents of
  * the strbuf.  The strbuf_getline*() family of functions share

t/t1006-cat-file.sh

@@ -89,7 +89,8 @@ done
 for opt in --buffer \
 	--follow-symlinks \
 	--batch-all-objects \
-	-z
+	-z \
+	-Z
 do
 	test_expect_success "usage: bad option combination: $opt without batch mode" '
 		test_incompatible_usage git cat-file $opt &&
@@ -109,26 +110,12 @@ strlen () {
     echo_without_newline "$1" | wc -c | sed -e 's/^ *//'
 }
 
-maybe_remove_timestamp () {
-	if test -z "$2"; then
-		echo_without_newline "$1"
-	else
-		echo_without_newline "$(printf '%s\n' "$1" | remove_timestamp)"
-	fi
-}
-
-remove_timestamp () {
-	sed -e 's/ [0-9][0-9]* [-+][0-9][0-9][0-9][0-9]$//'
-}
-
-
 run_tests () {
     type=$1
     sha1=$2
     size=$3
     content=$4
     pretty_content=$5
-    no_ts=$6
 
     batch_output="$sha1 $type $size
 $content"
@@ -163,21 +150,21 @@ $content"
 
     test -z "$content" ||
     test_expect_success "Content of $type is correct" '
-	maybe_remove_timestamp "$content" $no_ts >expect &&
+	echo_without_newline "$content" >expect &&
-	maybe_remove_timestamp "$(git cat-file $type $sha1)" $no_ts >actual &&
+	git cat-file $type $sha1 >actual &&
 	test_cmp expect actual
     '
 
     test_expect_success "Pretty content of $type is correct" '
-	maybe_remove_timestamp "$pretty_content" $no_ts >expect &&
+	echo_without_newline "$pretty_content" >expect &&
-	maybe_remove_timestamp "$(git cat-file -p $sha1)" $no_ts >actual &&
+	git cat-file -p $sha1 >actual &&
 	test_cmp expect actual
     '
 
     test -z "$content" ||
     test_expect_success "--batch output of $type is correct" '
-	maybe_remove_timestamp "$batch_output" $no_ts >expect &&
+	echo "$batch_output" >expect &&
-	maybe_remove_timestamp "$(echo $sha1 | git cat-file --batch)" $no_ts >actual &&
+	echo $sha1 | git cat-file --batch >actual &&
 	test_cmp expect actual
     '
 
@@ -191,9 +178,8 @@ $content"
     do
 	test -z "$content" ||
 		test_expect_success "--batch-command $opt output of $type content is correct" '
-		maybe_remove_timestamp "$batch_output" $no_ts >expect &&
+		echo "$batch_output" >expect &&
-		maybe_remove_timestamp "$(test_write_lines "contents $sha1" |
+		test_write_lines "contents $sha1" | git cat-file --batch-command $opt >actual &&
-		git cat-file --batch-command $opt)" $no_ts >actual &&
 		test_cmp expect actual
 	'
 
@@ -228,10 +214,9 @@ $content"
     test_expect_success "--batch without type ($type)" '
 	{
 		echo "$size" &&
-		maybe_remove_timestamp "$content" $no_ts
+		echo "$content"
 	} >expect &&
-	echo $sha1 | git cat-file --batch="%(objectsize)" >actual.full &&
+	echo $sha1 | git cat-file --batch="%(objectsize)" >actual &&
-	maybe_remove_timestamp "$(cat actual.full)" $no_ts >actual &&
 	test_cmp expect actual
     '
 
@@ -239,10 +224,9 @@ $content"
     test_expect_success "--batch without size ($type)" '
 	{
 		echo "$type" &&
-		maybe_remove_timestamp "$content" $no_ts
+		echo "$content"
 	} >expect &&
-	echo $sha1 | git cat-file --batch="%(objecttype)" >actual.full &&
+	echo $sha1 | git cat-file --batch="%(objecttype)" >actual &&
-	maybe_remove_timestamp "$(cat actual.full)" $no_ts >actual &&
 	test_cmp expect actual
     '
 }
@@ -284,7 +268,7 @@ test_expect_success '--batch-check without %(rest) considers whole line' '
 
 tree_sha1=$(git write-tree)
 tree_size=$(($(test_oid rawsz) + 13))
-tree_pretty_content="100644 blob $hello_sha1	hello"
+tree_pretty_content="100644 blob $hello_sha1	hello${LF}"
 
 run_tests 'tree' $tree_sha1 $tree_size "" "$tree_pretty_content"
 
@@ -292,12 +276,12 @@ commit_message="Initial commit"
 commit_sha1=$(echo_without_newline "$commit_message" | git commit-tree $tree_sha1)
 commit_size=$(($(test_oid hexsz) + 137))
 commit_content="tree $tree_sha1
-author $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> 0 +0000
+author $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> $GIT_AUTHOR_DATE
-committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 0 +0000
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
 
 $commit_message"
 
-run_tests 'commit' $commit_sha1 $commit_size "$commit_content" "$commit_content" 1
+run_tests 'commit' $commit_sha1 $commit_size "$commit_content" "$commit_content"
 
 tag_header_without_timestamp="object $hello_sha1
 type blob
@@ -311,11 +295,13 @@ $tag_description"
 tag_sha1=$(echo_without_newline "$tag_content" | git hash-object -t tag --stdin -w)
 tag_size=$(strlen "$tag_content")
 
-run_tests 'tag' $tag_sha1 $tag_size "$tag_content" "$tag_content" 1
+run_tests 'tag' $tag_sha1 $tag_size "$tag_content" "$tag_content"
 
-test_expect_success \
+test_expect_success "Reach a blob from a tag pointing to it" '
-    "Reach a blob from a tag pointing to it" \
+	echo_without_newline "$hello_content" >expect &&
-    "test '$hello_content' = \"\$(git cat-file blob $tag_sha1)\""
+	git cat-file blob $tag_sha1 >actual &&
+	test_cmp expect actual
+'
 
 for batch in batch batch-check batch-command
 do
@@ -351,30 +337,47 @@ do
 done
 
 test_expect_success "--batch-check for a non-existent named object" '
-	test "foobar42 missing
+	cat >expect <<-EOF &&
-foobar84 missing" = \
+	foobar42 missing
-	"$( ( echo foobar42 && echo_without_newline foobar84 ) | git cat-file --batch-check)"
+	foobar84 missing
+	EOF
+
+	printf "foobar42\nfoobar84" >in &&
+	git cat-file --batch-check <in >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success "--batch-check for a non-existent hash" '
-	test "0000000000000000000000000000000000000042 missing
+	cat >expect <<-EOF &&
-0000000000000000000000000000000000000084 missing" = \
+	0000000000000000000000000000000000000042 missing
-    "$( ( echo 0000000000000000000000000000000000000042 &&
+	0000000000000000000000000000000000000084 missing
-	 echo_without_newline 0000000000000000000000000000000000000084 ) |
+	EOF
-	git cat-file --batch-check)"
+
+	printf "0000000000000000000000000000000000000042\n0000000000000000000000000000000000000084" >in &&
+	git cat-file --batch-check <in >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success "--batch for an existent and a non-existent hash" '
-	test "$tag_sha1 tag $tag_size
+	cat >expect <<-EOF &&
-$tag_content
+	$tag_sha1 tag $tag_size
-0000000000000000000000000000000000000000 missing" = \
+	$tag_content
-	"$( ( echo $tag_sha1 &&
+	0000000000000000000000000000000000000000 missing
-	echo_without_newline 0000000000000000000000000000000000000000 ) |
+	EOF
-	git cat-file --batch)"
+
+	printf "$tag_sha1\n0000000000000000000000000000000000000000" >in &&
+	git cat-file --batch <in >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success "--batch-check for an empty line" '
-	test " missing" = "$(echo | git cat-file --batch-check)"
+	cat >expect <<-EOF &&
+	 missing
+	EOF
+
+	echo >in &&
+	git cat-file --batch-check <in >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success 'empty --batch-check notices missing object' '
@@ -390,23 +393,34 @@ deadbeef
 
 "
 
-batch_output="$hello_sha1 blob $hello_size
+printf "%s\0" \
-$hello_content
+	"$hello_sha1 blob $hello_size" \
-$commit_sha1 commit $commit_size
+	"$hello_content" \
-$commit_content
+	"$commit_sha1 commit $commit_size" \
-$tag_sha1 tag $tag_size
+	"$commit_content" \
-$tag_content
+	"$tag_sha1 tag $tag_size" \
-deadbeef missing
+	"$tag_content" \
- missing"
+	"deadbeef missing" \
+	" missing" >batch_output
 
 test_expect_success '--batch with multiple sha1s gives correct format' '
-	test "$(maybe_remove_timestamp "$batch_output" 1)" = "$(maybe_remove_timestamp "$(echo_without_newline "$batch_input" | git cat-file --batch)" 1)"
+	tr "\0" "\n" <batch_output >expect &&
+	echo_without_newline "$batch_input" >in &&
+	git cat-file --batch <in >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success '--batch, -z with multiple sha1s gives correct format' '
 	echo_without_newline_nul "$batch_input" >in &&
-	test "$(maybe_remove_timestamp "$batch_output" 1)" = \
+	tr "\0" "\n" <batch_output >expect &&
-	"$(maybe_remove_timestamp "$(git cat-file --batch -z <in)" 1)"
+	git cat-file --batch -z <in >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success '--batch, -Z with multiple sha1s gives correct format' '
+	echo_without_newline_nul "$batch_input" >in &&
+	git cat-file --batch -Z <in >actual &&
+	test_cmp batch_output actual
 '
 
 batch_check_input="$hello_sha1
@@ -417,36 +431,55 @@ deadbeef
 
 "
 
-batch_check_output="$hello_sha1 blob $hello_size
+printf "%s\0" \
-$tree_sha1 tree $tree_size
+	"$hello_sha1 blob $hello_size" \
-$commit_sha1 commit $commit_size
+	"$tree_sha1 tree $tree_size" \
-$tag_sha1 tag $tag_size
+	"$commit_sha1 commit $commit_size" \
-deadbeef missing
+	"$tag_sha1 tag $tag_size" \
- missing"
+	"deadbeef missing" \
+	" missing" >batch_check_output
 
 test_expect_success "--batch-check with multiple sha1s gives correct format" '
-	test "$batch_check_output" = \
+	tr "\0" "\n" <batch_check_output >expect &&
-	"$(echo_without_newline "$batch_check_input" | git cat-file --batch-check)"
+	echo_without_newline "$batch_check_input" >in &&
+	git cat-file --batch-check <in >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success "--batch-check, -z with multiple sha1s gives correct format" '
+	tr "\0" "\n" <batch_check_output >expect &&
 	echo_without_newline_nul "$batch_check_input" >in &&
-	test "$batch_check_output" = "$(git cat-file --batch-check -z <in)"
+	git cat-file --batch-check -z <in >actual &&
+	test_cmp expect actual
 '
 
-test_expect_success FUNNYNAMES '--batch-check, -z with newline in input' '
+test_expect_success "--batch-check, -Z with multiple sha1s gives correct format" '
+	echo_without_newline_nul "$batch_check_input" >in &&
+	git cat-file --batch-check -Z <in >actual &&
+	test_cmp batch_check_output actual
+'
+
+test_expect_success FUNNYNAMES 'setup with newline in input' '
 	touch -- "newline${LF}embedded" &&
 	git add -- "newline${LF}embedded" &&
 	git commit -m "file with newline embedded" &&
 	test_tick &&
 
-	printf "HEAD:newline${LF}embedded" >in &&
+	printf "HEAD:newline${LF}embedded" >in
-	git cat-file --batch-check -z <in >actual &&
+'
 
+test_expect_success FUNNYNAMES '--batch-check, -z with newline in input' '
+	git cat-file --batch-check -z <in >actual &&
 	echo "$(git rev-parse "HEAD:newline${LF}embedded") blob 0" >expect &&
 	test_cmp expect actual
 '
 
+test_expect_success FUNNYNAMES '--batch-check, -Z with newline in input' '
+	git cat-file --batch-check -Z <in >actual &&
+	printf "%s\0" "$(git rev-parse "HEAD:newline${LF}embedded") blob 0" >expect &&
+	test_cmp expect actual
+'
+
 batch_command_multiple_info="info $hello_sha1
 info $tree_sha1
 info $commit_sha1
@@ -470,7 +503,13 @@ test_expect_success '--batch-command with multiple info calls gives correct form
 	echo "$batch_command_multiple_info" | tr "\n" "\0" >in &&
 	git cat-file --batch-command --buffer -z <in >actual &&
 
-	test_cmp expect actual
+	test_cmp expect actual &&
+
+	echo "$batch_command_multiple_info" | tr "\n" "\0" >in &&
+	tr "\n" "\0" <expect >expect_nul &&
+	git cat-file --batch-command --buffer -Z <in >actual &&
+
+	test_cmp expect_nul actual
 '
 
 batch_command_multiple_contents="contents $hello_sha1
@@ -480,27 +519,30 @@ contents deadbeef
 flush"
 
 test_expect_success '--batch-command with multiple command calls gives correct format' '
-	remove_timestamp >expect <<-EOF &&
+	printf "%s\0" \
-	$hello_sha1 blob $hello_size
+		"$hello_sha1 blob $hello_size" \
-	$hello_content
+		"$hello_content" \
-	$commit_sha1 commit $commit_size
+		"$commit_sha1 commit $commit_size" \
-	$commit_content
+		"$commit_content" \
-	$tag_sha1 tag $tag_size
+		"$tag_sha1 tag $tag_size" \
-	$tag_content
+		"$tag_content" \
-	deadbeef missing
+		"deadbeef missing" >expect_nul &&
-	EOF
+	tr "\0" "\n" <expect_nul >expect &&
 
 	echo "$batch_command_multiple_contents" >in &&
-	git cat-file --batch-command --buffer <in >actual_raw &&
+	git cat-file --batch-command --buffer <in >actual &&
 
-	remove_timestamp <actual_raw >actual &&
 	test_cmp expect actual &&
 
 	echo "$batch_command_multiple_contents" | tr "\n" "\0" >in &&
-	git cat-file --batch-command --buffer -z <in >actual_raw &&
+	git cat-file --batch-command --buffer -z <in >actual &&
 
-	remove_timestamp <actual_raw >actual &&
+	test_cmp expect actual &&
-	test_cmp expect actual
+
+	echo "$batch_command_multiple_contents" | tr "\n" "\0" >in &&
+	git cat-file --batch-command --buffer -Z <in >actual &&
+
+	test_cmp expect_nul actual
 '
 
 test_expect_success 'setup blobs which are likely to delta' '
@@ -840,6 +882,13 @@ test_expect_success 'git cat-file --batch-check --follow-symlinks works for brok
 	test_cmp expect actual
 '
 
+test_expect_success 'git cat-file --batch-check --follow-symlinks -Z works for broken in-repo, same-dir links' '
+	printf "HEAD:broken-same-dir-link\0" >in &&
+	printf "dangling 25\0HEAD:broken-same-dir-link\0" >expect &&
+	git cat-file --batch-check --follow-symlinks -Z <in >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'git cat-file --batch-check --follow-symlinks works for same-dir links-to-links' '
 	echo HEAD:link-to-link | git cat-file --batch-check --follow-symlinks >actual &&
 	test_cmp found actual
@@ -854,6 +903,15 @@ test_expect_success 'git cat-file --batch-check --follow-symlinks works for pare
 	test_cmp expect actual
 '
 
+test_expect_success 'git cat-file --batch-check --follow-symlinks -Z works for parent-dir links' '
+	echo HEAD:dir/parent-dir-link | git cat-file --batch-check --follow-symlinks >actual &&
+	test_cmp found actual &&
+	printf "notdir 29\0HEAD:dir/parent-dir-link/nope\0" >expect &&
+	printf "HEAD:dir/parent-dir-link/nope\0" >in &&
+	git cat-file --batch-check --follow-symlinks -Z <in >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'git cat-file --batch-check --follow-symlinks works for .. links' '
 	echo dangling 22 >expect &&
 	echo HEAD:dir/link-dir/nope >>expect &&
@@ -968,6 +1026,13 @@ test_expect_success 'git cat-file --batch-check --follow-symlink breaks loops' '
 	test_cmp expect actual
 '
 
+test_expect_success 'git cat-file --batch-check --follow-symlink -Z breaks loops' '
+	printf "loop 10\0HEAD:loop1\0" >expect &&
+	printf "HEAD:loop1\0" >in &&
+	git cat-file --batch-check --follow-symlinks -Z <in >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'git cat-file --batch --follow-symlink returns correct sha and mode' '
 	echo HEAD:morx | git cat-file --batch >expect &&
 	echo HEAD:morx | git cat-file --batch --follow-symlinks >actual &&