зеркало из https://github.com/microsoft/git.git
git-cat-file: Add --batch option
--batch is similar to --batch-check, except that the contents of each object is also printed. The output's form is: <sha1> SP <type> SP <size> LF <contents> LF Signed-off-by: Adam Roben <aroben@apple.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Adam Roben
Junio C Hamano
Родитель
05d5667fec
Коммит
a8128ed628
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@ -9,7 +9,7 @@ git-cat-file - Provide content or type/size information for repository objects
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SYNOPSIS
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--------
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'git-cat-file' [-t | -s | -e | -p | <type>] <object>
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'git-cat-file' --batch-check < <list-of-objects>
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'git-cat-file' [--batch | --batch-check] < <list-of-objects>
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DESCRIPTION
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-----------
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@ -50,6 +50,10 @@ OPTIONS
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or to ask for a "blob" with <object> being a tag object that
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points at it.
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--batch::
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Print the SHA1, type, size, and contents of each object provided on
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stdin. May not be combined with any other options or arguments.
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--batch-check::
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Print the SHA1, type, and size of each object provided on stdin. May not be
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combined with any other options or arguments.
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@ -67,6 +71,14 @@ If '-p' is specified, the contents of <object> are pretty-printed.
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If <type> is specified, the raw (though uncompressed) contents of the <object>
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will be returned.
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If '--batch' is specified, output of the following form is printed for each
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object specified on stdin:
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------------
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<sha1> SP <type> SP <size> LF
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<contents> LF
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------------
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If '--batch-check' is specified, output of the following form is printed for
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each object specified fon stdin:
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@ -74,8 +86,8 @@ each object specified fon stdin:
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<sha1> SP <type> SP <size> LF
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------------
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Additionally, output of the following form is printed for each object specified
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on stdin that does not exist in the repository:
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For both '--batch' and '--batch-check', output of the following form is printed
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for each object specified on stdin that does not exist in the repository:
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------------
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<object> SP missing LF
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@ -143,11 +143,12 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
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return 0;
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}
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static int batch_one_object(const char *obj_name)
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static int batch_one_object(const char *obj_name, int print_contents)
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{
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unsigned char sha1[20];
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enum object_type type;
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unsigned long size;
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void *contents = contents;
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if (!obj_name)
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return 1;
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@ -157,22 +158,33 @@ static int batch_one_object(const char *obj_name)
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return 0;
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}
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type = sha1_object_info(sha1, &size);
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if (print_contents)
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contents = read_sha1_file(sha1, &type, &size);
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else
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type = sha1_object_info(sha1, &size);
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if (type <= 0)
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return 1;
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printf("%s %s %lu\n", sha1_to_hex(sha1), typename(type), size);
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fflush(stdout);
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if (print_contents) {
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write_or_die(1, contents, size);
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printf("\n");
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fflush(stdout);
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}
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return 0;
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}
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static int batch_objects(void)
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static int batch_objects(int print_contents)
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{
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struct strbuf buf;
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strbuf_init(&buf, 0);
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while (strbuf_getline(&buf, stdin, '\n') != EOF) {
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int error = batch_one_object(buf.buf);
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int error = batch_one_object(buf.buf, print_contents);
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if (error)
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return error;
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}
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@ -180,37 +192,51 @@ static int batch_objects(void)
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return 0;
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}
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static const char cat_file_usage[] = "git-cat-file [ [-t|-s|-e|-p|<type>] <sha1> | --batch-check < <list_of_sha1s> ]";
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static const char cat_file_usage[] = "git-cat-file [ [-t|-s|-e|-p|<type>] <sha1> | [--batch|--batch-check] < <list_of_sha1s> ]";
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int cmd_cat_file(int argc, const char **argv, const char *prefix)
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{
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int i, opt = 0, batch_check = 0;
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int i, opt = 0, batch = 0, batch_check = 0;
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const char *exp_type = NULL, *obj_name = NULL;
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git_config(git_default_config);
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for (i = 1; i < argc; ++i) {
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const char *arg = argv[i];
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int is_batch = 0, is_batch_check = 0;
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if (!strcmp(arg, "--batch-check")) {
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is_batch = !strcmp(arg, "--batch");
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if (!is_batch)
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is_batch_check = !strcmp(arg, "--batch-check");
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if (is_batch || is_batch_check) {
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if (opt) {
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error("git-cat-file: Can't use --batch-check with -%c", opt);
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error("git-cat-file: Can't use %s with -%c", arg, opt);
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usage(cat_file_usage);
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} else if (exp_type) {
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error("git-cat-file: Can't use --batch-check when a type (\"%s\") is specified", exp_type);
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error("git-cat-file: Can't use %s when a type (\"%s\") is specified", arg, exp_type);
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usage(cat_file_usage);
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} else if (obj_name) {
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error("git-cat-file: Can't use --batch-check when an object (\"%s\") is specified", obj_name);
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error("git-cat-file: Can't use %s when an object (\"%s\") is specified", arg, obj_name);
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usage(cat_file_usage);
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}
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batch_check = 1;
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if ((is_batch && batch_check) || (is_batch_check && batch)) {
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error("git-cat-file: Can't use %s with %s", arg, is_batch ? "--batch-check" : "--batch");
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usage(cat_file_usage);
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}
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if (is_batch)
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batch = 1;
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else
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batch_check = 1;
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continue;
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}
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if (!strcmp(arg, "-t") || !strcmp(arg, "-s") || !strcmp(arg, "-e") || !strcmp(arg, "-p")) {
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if (batch_check) {
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error("git-cat-file: Can't use %s with --batch-check", arg);
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if (batch || batch_check) {
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error("git-cat-file: Can't use %s with %s", arg, batch ? "--batch" : "--batch-check");
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usage(cat_file_usage);
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}
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@ -223,8 +249,8 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
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usage(cat_file_usage);
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if (!exp_type) {
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if (batch_check) {
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error("git-cat-file: Can't specify a type (\"%s\") with --batch-check", arg);
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if (batch || batch_check) {
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error("git-cat-file: Can't specify a type (\"%s\") with %s", arg, batch ? "--batch" : "--batch-check");
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usage(cat_file_usage);
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}
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@ -235,16 +261,17 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
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if (obj_name)
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usage(cat_file_usage);
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// We should have hit one of the earlier if (batch_check) cases before
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// We should have hit one of the earlier if (batch || batch_check) cases before
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// getting here.
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assert(!batch);
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assert(!batch_check);
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obj_name = arg;
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break;
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}
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if (batch_check)
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return batch_objects();
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if (batch || batch_check)
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return batch_objects(batch);
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if (!exp_type || !obj_name)
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usage(cat_file_usage);
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@ -28,6 +28,9 @@ run_tests () {
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pretty_content=$5
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no_ts=$6
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batch_output="$sha1 $type $size
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$content"
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test_expect_success "$type exists" '
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git cat-file -e $sha1
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'
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@ -68,6 +71,20 @@ run_tests () {
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fi
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'
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test -z "$content" ||
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test_expect_success "--batch output of $type is correct" '
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expect="$(maybe_remove_timestamp "$batch_output" $no_ts)"
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actual="$(maybe_remove_timestamp "$(echo $sha1 | git cat-file --batch)" no_ts)"
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if test "z$expect" = "z$actual"
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then
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: happy
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else
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echo "Oops: expected $expect"
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echo "but got $actual"
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false
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fi
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'
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test_expect_success "--batch-check output of $type is correct" '
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expect="$sha1 $type $size"
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actual="$(echo_without_newline $sha1 | git cat-file --batch-check)"
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@ -131,29 +148,32 @@ test_expect_success \
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"Reach a blob from a tag pointing to it" \
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"test '$hello_content' = \"\$(git cat-file blob $tag_sha1)\""
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for opt in t s e p
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for batch in batch batch-check
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do
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test_expect_success "Passing -$opt with --batch-check fails" '
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test_must_fail git cat-file --batch-check -$opt $hello_sha1
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for opt in t s e p
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do
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test_expect_success "Passing -$opt with --$batch fails" '
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test_must_fail git cat-file --$batch -$opt $hello_sha1
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'
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test_expect_success "Passing --$batch with -$opt fails" '
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test_must_fail git cat-file -$opt --$batch $hello_sha1
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'
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done
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test_expect_success "Passing <type> with --$batch fails" '
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test_must_fail git cat-file --$batch blob $hello_sha1
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'
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test_expect_success "Passing --batch-check with -$opt fails" '
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test_must_fail git cat-file -$opt --batch-check $hello_sha1
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test_expect_success "Passing --$batch with <type> fails" '
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test_must_fail git cat-file blob --$batch $hello_sha1
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'
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test_expect_success "Passing sha1 with --$batch fails" '
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test_must_fail git cat-file --$batch $hello_sha1
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'
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done
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test_expect_success "Passing <type> with --batch-check fails" '
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test_must_fail git cat-file --batch-check blob $hello_sha1
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'
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test_expect_success "Passing --batch-check with <type> fails" '
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test_must_fail git cat-file blob --batch-check $hello_sha1
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'
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test_expect_success "Passing sha1 with --batch-check fails" '
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test_must_fail git cat-file --batch-check $hello_sha1
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'
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test_expect_success "--batch-check for a non-existent object" '
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test "deadbeef missing" = \
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"$(echo_without_newline deadbeef | git cat-file --batch-check)"
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@ -163,6 +183,26 @@ test_expect_success "--batch-check for an emtpy line" '
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test " missing" = "$(echo | git cat-file --batch-check)"
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'
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batch_input="$hello_sha1
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$commit_sha1
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$tag_sha1
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deadbeef
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"
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batch_output="$hello_sha1 blob $hello_size
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$hello_content
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$commit_sha1 commit $commit_size
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$commit_content
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$tag_sha1 tag $tag_size
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$tag_content
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deadbeef missing
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missing"
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test_expect_success \
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"--batch with multiple sha1s gives correct format" \
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"test \"\$(maybe_remove_timestamp \"$batch_output\" 1)\" = \"\$(maybe_remove_timestamp \"\$(echo_without_newline \"$batch_input\" | git cat-file --batch)\" 1)\""
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batch_check_input="$hello_sha1
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$tree_sha1
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$commit_sha1
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