2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
6 #define USE_THE_INDEX_VARIABLE
12 #include "environment.h"
16 #include "parse-options.h"
18 #include "streaming.h"
19 #include "tree-walk.h"
20 #include "oid-array.h"
22 #include "object-file.h"
23 #include "object-name.h"
24 #include "object-store.h"
25 #include "replace-object.h"
26 #include "promisor-remote.h"
28 #include "write-or-die.h"
33 BATCH_MODE_QUEUE_AND_DISPATCH
,
36 struct batch_options
{
39 enum batch_mode batch_mode
;
43 int transform_mode
; /* may be 'w' or 'c' for --filters or --textconv */
48 static const char *force_path
;
50 static struct string_list mailmap
= STRING_LIST_INIT_NODUP
;
51 static int use_mailmap
;
53 static char *replace_idents_using_mailmap(char *, size_t *);
55 static char *replace_idents_using_mailmap(char *object_buf
, size_t *size
)
57 struct strbuf sb
= STRBUF_INIT
;
58 const char *headers
[] = { "author ", "committer ", "tagger ", NULL
};
60 strbuf_attach(&sb
, object_buf
, *size
, *size
+ 1);
61 apply_mailmap_to_header(&sb
, headers
, &mailmap
);
63 return strbuf_detach(&sb
, NULL
);
66 static int filter_object(const char *path
, unsigned mode
,
67 const struct object_id
*oid
,
68 char **buf
, unsigned long *size
)
70 enum object_type type
;
72 *buf
= repo_read_object_file(the_repository
, oid
, &type
, size
);
74 return error(_("cannot read object %s '%s'"),
75 oid_to_hex(oid
), path
);
76 if ((type
== OBJ_BLOB
) && S_ISREG(mode
)) {
77 struct strbuf strbuf
= STRBUF_INIT
;
78 struct checkout_metadata meta
;
80 init_checkout_metadata(&meta
, NULL
, NULL
, oid
);
81 if (convert_to_working_tree(&the_index
, path
, *buf
, *size
, &strbuf
, &meta
)) {
84 *buf
= strbuf_detach(&strbuf
, NULL
);
91 static int stream_blob(const struct object_id
*oid
)
93 if (stream_blob_to_fd(1, oid
, NULL
, 0))
94 die("unable to stream %s to stdout", oid_to_hex(oid
));
98 static int cat_one_file(int opt
, const char *exp_type
, const char *obj_name
,
102 struct object_id oid
;
103 enum object_type type
;
106 struct object_context obj_context
;
107 struct object_info oi
= OBJECT_INFO_INIT
;
108 struct strbuf sb
= STRBUF_INIT
;
109 unsigned flags
= OBJECT_INFO_LOOKUP_REPLACE
;
110 unsigned get_oid_flags
= GET_OID_RECORD_PATH
| GET_OID_ONLY_TO_DIE
;
111 const char *path
= force_path
;
112 const int opt_cw
= (opt
== 'c' || opt
== 'w');
114 get_oid_flags
|= GET_OID_REQUIRE_PATH
;
117 flags
|= OBJECT_INFO_ALLOW_UNKNOWN_TYPE
;
119 if (get_oid_with_context(the_repository
, obj_name
, get_oid_flags
, &oid
,
121 die("Not a valid object name %s", obj_name
);
124 path
= obj_context
.path
;
125 if (obj_context
.mode
== S_IFINVALID
)
126 obj_context
.mode
= 0100644;
132 if (oid_object_info_extended(the_repository
, &oid
, &oi
, flags
) < 0)
133 die("git cat-file: could not get object info");
135 printf("%s\n", sb
.buf
);
147 oi
.contentp
= (void**)&buf
;
150 if (oid_object_info_extended(the_repository
, &oid
, &oi
, flags
) < 0)
151 die("git cat-file: could not get object info");
153 if (use_mailmap
&& (type
== OBJ_COMMIT
|| type
== OBJ_TAG
)) {
155 buf
= replace_idents_using_mailmap(buf
, &s
);
156 size
= cast_size_t_to_ulong(s
);
159 printf("%"PRIuMAX
"\n", (uintmax_t)size
);
164 return !repo_has_object_file(the_repository
, &oid
);
168 if (filter_object(path
, obj_context
.mode
,
169 &oid
, &buf
, &size
)) {
176 if (textconv_object(the_repository
, path
, obj_context
.mode
,
177 &oid
, 1, &buf
, &size
))
179 /* else fallthrough */
182 type
= oid_object_info(the_repository
, &oid
, NULL
);
184 die("Not a valid object name %s", obj_name
);
186 /* custom pretty-print here */
187 if (type
== OBJ_TREE
) {
188 const char *ls_args
[3] = { NULL
};
189 ls_args
[0] = "ls-tree";
190 ls_args
[1] = obj_name
;
191 ret
= cmd_ls_tree(2, ls_args
, NULL
);
195 if (type
== OBJ_BLOB
) {
196 ret
= stream_blob(&oid
);
199 buf
= repo_read_object_file(the_repository
, &oid
, &type
,
202 die("Cannot read object %s", obj_name
);
206 buf
= replace_idents_using_mailmap(buf
, &s
);
207 size
= cast_size_t_to_ulong(s
);
210 /* otherwise just spit out the data */
215 enum object_type exp_type_id
= type_from_string(exp_type
);
217 if (exp_type_id
== OBJ_BLOB
) {
218 struct object_id blob_oid
;
219 if (oid_object_info(the_repository
, &oid
, NULL
) == OBJ_TAG
) {
220 char *buffer
= repo_read_object_file(the_repository
,
225 if (!skip_prefix(buffer
, "object ", &target
) ||
226 get_oid_hex(target
, &blob_oid
))
227 die("%s not a valid tag", oid_to_hex(&oid
));
230 oidcpy(&blob_oid
, &oid
);
232 if (oid_object_info(the_repository
, &blob_oid
, NULL
) == OBJ_BLOB
) {
233 ret
= stream_blob(&blob_oid
);
237 * we attempted to dereference a tag to a blob
238 * and failed; there may be new dereference
239 * mechanisms this code is not aware of.
240 * fall-back to the usual case.
243 buf
= read_object_with_reference(the_repository
, &oid
,
244 exp_type_id
, &size
, NULL
);
248 buf
= replace_idents_using_mailmap(buf
, &s
);
249 size
= cast_size_t_to_ulong(s
);
254 die("git cat-file: unknown option: %s", exp_type
);
258 die("git cat-file %s: bad file", obj_name
);
260 write_or_die(1, buf
, size
);
264 free(obj_context
.path
);
269 struct object_id oid
;
270 enum object_type type
;
274 struct object_id delta_base_oid
;
277 * If mark_query is true, we do not expand anything, but rather
278 * just mark the object_info with items we wish to query.
283 * Whether to split the input on whitespace before feeding it to
284 * get_sha1; this is decided during the mark_query phase based on
285 * whether we have a %(rest) token in our format.
287 int split_on_whitespace
;
290 * After a mark_query run, this object_info is set up to be
291 * passed to oid_object_info_extended. It will point to the data
292 * elements above, so you can retrieve the response from there.
294 struct object_info info
;
297 * This flag will be true if the requested batch format and options
298 * don't require us to call oid_object_info, which can then be
301 unsigned skip_object_info
: 1;
304 static int is_atom(const char *atom
, const char *s
, int slen
)
306 int alen
= strlen(atom
);
307 return alen
== slen
&& !memcmp(atom
, s
, alen
);
310 static void expand_atom(struct strbuf
*sb
, const char *atom
, int len
,
313 struct expand_data
*data
= vdata
;
315 if (is_atom("objectname", atom
, len
)) {
316 if (!data
->mark_query
)
317 strbuf_addstr(sb
, oid_to_hex(&data
->oid
));
318 } else if (is_atom("objecttype", atom
, len
)) {
319 if (data
->mark_query
)
320 data
->info
.typep
= &data
->type
;
322 strbuf_addstr(sb
, type_name(data
->type
));
323 } else if (is_atom("objectsize", atom
, len
)) {
324 if (data
->mark_query
)
325 data
->info
.sizep
= &data
->size
;
327 strbuf_addf(sb
, "%"PRIuMAX
, (uintmax_t)data
->size
);
328 } else if (is_atom("objectsize:disk", atom
, len
)) {
329 if (data
->mark_query
)
330 data
->info
.disk_sizep
= &data
->disk_size
;
332 strbuf_addf(sb
, "%"PRIuMAX
, (uintmax_t)data
->disk_size
);
333 } else if (is_atom("rest", atom
, len
)) {
334 if (data
->mark_query
)
335 data
->split_on_whitespace
= 1;
337 strbuf_addstr(sb
, data
->rest
);
338 } else if (is_atom("deltabase", atom
, len
)) {
339 if (data
->mark_query
)
340 data
->info
.delta_base_oid
= &data
->delta_base_oid
;
343 oid_to_hex(&data
->delta_base_oid
));
345 die("unknown format element: %.*s", len
, atom
);
348 static size_t expand_format(struct strbuf
*sb
, const char *start
, void *data
)
354 end
= strchr(start
+ 1, ')');
356 die("format element '%s' does not end in ')'", start
);
358 expand_atom(sb
, start
+ 1, end
- start
- 1, data
);
360 return end
- start
+ 1;
363 static void batch_write(struct batch_options
*opt
, const void *data
, int len
)
365 if (opt
->buffer_output
) {
366 if (fwrite(data
, 1, len
, stdout
) != len
)
367 die_errno("unable to write to stdout");
369 write_or_die(1, data
, len
);
372 static void print_object_or_die(struct batch_options
*opt
, struct expand_data
*data
)
374 const struct object_id
*oid
= &data
->oid
;
376 assert(data
->info
.typep
);
378 if (data
->type
== OBJ_BLOB
) {
379 if (opt
->buffer_output
)
381 if (opt
->transform_mode
) {
386 die("missing path for '%s'", oid_to_hex(oid
));
388 if (opt
->transform_mode
== 'w') {
389 if (filter_object(data
->rest
, 0100644, oid
,
391 die("could not convert '%s' %s",
392 oid_to_hex(oid
), data
->rest
);
393 } else if (opt
->transform_mode
== 'c') {
394 enum object_type type
;
395 if (!textconv_object(the_repository
,
396 data
->rest
, 0100644, oid
,
397 1, &contents
, &size
))
398 contents
= repo_read_object_file(the_repository
,
403 die("could not convert '%s' %s",
404 oid_to_hex(oid
), data
->rest
);
406 BUG("invalid transform_mode: %c", opt
->transform_mode
);
407 batch_write(opt
, contents
, size
);
414 enum object_type type
;
418 contents
= repo_read_object_file(the_repository
, oid
, &type
,
423 contents
= replace_idents_using_mailmap(contents
, &s
);
424 size
= cast_size_t_to_ulong(s
);
428 die("object %s disappeared", oid_to_hex(oid
));
429 if (type
!= data
->type
)
430 die("object %s changed type!?", oid_to_hex(oid
));
431 if (data
->info
.sizep
&& size
!= data
->size
&& !use_mailmap
)
432 die("object %s changed size!?", oid_to_hex(oid
));
434 batch_write(opt
, contents
, size
);
439 static void print_default_format(struct strbuf
*scratch
, struct expand_data
*data
)
441 strbuf_addf(scratch
, "%s %s %"PRIuMAX
"\n", oid_to_hex(&data
->oid
),
442 type_name(data
->type
),
443 (uintmax_t)data
->size
);
447 * If "pack" is non-NULL, then "offset" is the byte offset within the pack from
448 * which the object may be accessed (though note that we may also rely on
449 * data->oid, too). If "pack" is NULL, then offset is ignored.
451 static void batch_object_write(const char *obj_name
,
452 struct strbuf
*scratch
,
453 struct batch_options
*opt
,
454 struct expand_data
*data
,
455 struct packed_git
*pack
,
458 if (!data
->skip_object_info
) {
462 data
->info
.typep
= &data
->type
;
465 ret
= packed_object_info(the_repository
, pack
, offset
,
468 ret
= oid_object_info_extended(the_repository
,
469 &data
->oid
, &data
->info
,
470 OBJECT_INFO_LOOKUP_REPLACE
);
472 printf("%s missing\n",
473 obj_name
? obj_name
: oid_to_hex(&data
->oid
));
478 if (use_mailmap
&& (data
->type
== OBJ_COMMIT
|| data
->type
== OBJ_TAG
)) {
479 size_t s
= data
->size
;
482 buf
= repo_read_object_file(the_repository
, &data
->oid
, &data
->type
,
484 buf
= replace_idents_using_mailmap(buf
, &s
);
485 data
->size
= cast_size_t_to_ulong(s
);
491 strbuf_reset(scratch
);
494 print_default_format(scratch
, data
);
496 strbuf_expand(scratch
, opt
->format
, expand_format
, data
);
497 strbuf_addch(scratch
, '\n');
500 batch_write(opt
, scratch
->buf
, scratch
->len
);
502 if (opt
->batch_mode
== BATCH_MODE_CONTENTS
) {
503 print_object_or_die(opt
, data
);
504 batch_write(opt
, "\n", 1);
508 static void batch_one_object(const char *obj_name
,
509 struct strbuf
*scratch
,
510 struct batch_options
*opt
,
511 struct expand_data
*data
)
513 struct object_context ctx
;
514 int flags
= opt
->follow_symlinks
? GET_OID_FOLLOW_SYMLINKS
: 0;
515 enum get_oid_result result
;
517 result
= get_oid_with_context(the_repository
, obj_name
,
518 flags
, &data
->oid
, &ctx
);
519 if (result
!= FOUND
) {
522 printf("%s missing\n", obj_name
);
524 case SHORT_NAME_AMBIGUOUS
:
525 printf("%s ambiguous\n", obj_name
);
527 case DANGLING_SYMLINK
:
528 printf("dangling %"PRIuMAX
"\n%s\n",
529 (uintmax_t)strlen(obj_name
), obj_name
);
532 printf("loop %"PRIuMAX
"\n%s\n",
533 (uintmax_t)strlen(obj_name
), obj_name
);
536 printf("notdir %"PRIuMAX
"\n%s\n",
537 (uintmax_t)strlen(obj_name
), obj_name
);
540 BUG("unknown get_sha1_with_context result %d\n",
549 printf("symlink %"PRIuMAX
"\n%s\n",
550 (uintmax_t)ctx
.symlink_path
.len
,
551 ctx
.symlink_path
.buf
);
556 batch_object_write(obj_name
, scratch
, opt
, data
, NULL
, 0);
559 struct object_cb_data
{
560 struct batch_options
*opt
;
561 struct expand_data
*expand
;
563 struct strbuf
*scratch
;
566 static int batch_object_cb(const struct object_id
*oid
, void *vdata
)
568 struct object_cb_data
*data
= vdata
;
569 oidcpy(&data
->expand
->oid
, oid
);
570 batch_object_write(NULL
, data
->scratch
, data
->opt
, data
->expand
,
575 static int collect_loose_object(const struct object_id
*oid
,
576 const char *path UNUSED
,
579 oid_array_append(data
, oid
);
583 static int collect_packed_object(const struct object_id
*oid
,
584 struct packed_git
*pack UNUSED
,
588 oid_array_append(data
, oid
);
592 static int batch_unordered_object(const struct object_id
*oid
,
593 struct packed_git
*pack
, off_t offset
,
596 struct object_cb_data
*data
= vdata
;
598 if (oidset_insert(data
->seen
, oid
))
601 oidcpy(&data
->expand
->oid
, oid
);
602 batch_object_write(NULL
, data
->scratch
, data
->opt
, data
->expand
,
607 static int batch_unordered_loose(const struct object_id
*oid
,
608 const char *path UNUSED
,
611 return batch_unordered_object(oid
, NULL
, 0, data
);
614 static int batch_unordered_packed(const struct object_id
*oid
,
615 struct packed_git
*pack
,
619 return batch_unordered_object(oid
, pack
,
620 nth_packed_object_offset(pack
, pos
),
624 typedef void (*parse_cmd_fn_t
)(struct batch_options
*, const char *,
625 struct strbuf
*, struct expand_data
*);
632 static void parse_cmd_contents(struct batch_options
*opt
,
634 struct strbuf
*output
,
635 struct expand_data
*data
)
637 opt
->batch_mode
= BATCH_MODE_CONTENTS
;
638 batch_one_object(line
, output
, opt
, data
);
641 static void parse_cmd_info(struct batch_options
*opt
,
643 struct strbuf
*output
,
644 struct expand_data
*data
)
646 opt
->batch_mode
= BATCH_MODE_INFO
;
647 batch_one_object(line
, output
, opt
, data
);
650 static void dispatch_calls(struct batch_options
*opt
,
651 struct strbuf
*output
,
652 struct expand_data
*data
,
653 struct queued_cmd
*cmd
,
658 if (!opt
->buffer_output
)
659 die(_("flush is only for --buffer mode"));
661 for (i
= 0; i
< nr
; i
++)
662 cmd
[i
].fn(opt
, cmd
[i
].line
, output
, data
);
667 static void free_cmds(struct queued_cmd
*cmd
, size_t *nr
)
671 for (i
= 0; i
< *nr
; i
++)
672 FREE_AND_NULL(cmd
[i
].line
);
678 static const struct parse_cmd
{
683 { "contents", parse_cmd_contents
, 1},
684 { "info", parse_cmd_info
, 1},
688 static void batch_objects_command(struct batch_options
*opt
,
689 struct strbuf
*output
,
690 struct expand_data
*data
)
692 struct strbuf input
= STRBUF_INIT
;
693 struct queued_cmd
*queued_cmd
= NULL
;
694 size_t alloc
= 0, nr
= 0;
698 const struct parse_cmd
*cmd
= NULL
;
699 const char *p
= NULL
, *cmd_end
;
700 struct queued_cmd call
= {0};
702 if (opt
->nul_terminated
)
703 ret
= strbuf_getline_nul(&input
, stdin
);
705 ret
= strbuf_getline(&input
, stdin
);
711 die(_("empty command in input"));
712 if (isspace(*input
.buf
))
713 die(_("whitespace before command: '%s'"), input
.buf
);
715 for (i
= 0; i
< ARRAY_SIZE(commands
); i
++) {
716 if (!skip_prefix(input
.buf
, commands
[i
].name
, &cmd_end
))
720 if (cmd
->takes_args
) {
722 die(_("%s requires arguments"),
726 } else if (*cmd_end
) {
727 die(_("%s takes no arguments"),
735 die(_("unknown command: '%s'"), input
.buf
);
737 if (!strcmp(cmd
->name
, "flush")) {
738 dispatch_calls(opt
, output
, data
, queued_cmd
, nr
);
739 free_cmds(queued_cmd
, &nr
);
740 } else if (!opt
->buffer_output
) {
741 cmd
->fn(opt
, p
, output
, data
);
743 ALLOC_GROW(queued_cmd
, nr
+ 1, alloc
);
745 call
.line
= xstrdup_or_null(p
);
746 queued_cmd
[nr
++] = call
;
750 if (opt
->buffer_output
&&
752 !git_env_bool("GIT_TEST_CAT_FILE_NO_FLUSH_ON_EXIT", 0)) {
753 dispatch_calls(opt
, output
, data
, queued_cmd
, nr
);
754 free_cmds(queued_cmd
, &nr
);
757 free_cmds(queued_cmd
, &nr
);
759 strbuf_release(&input
);
762 #define DEFAULT_FORMAT "%(objectname) %(objecttype) %(objectsize)"
764 static int batch_objects(struct batch_options
*opt
)
766 struct strbuf input
= STRBUF_INIT
;
767 struct strbuf output
= STRBUF_INIT
;
768 struct expand_data data
;
773 * Expand once with our special mark_query flag, which will prime the
774 * object_info to be handed to oid_object_info_extended for each
777 memset(&data
, 0, sizeof(data
));
779 strbuf_expand(&output
,
780 opt
->format
? opt
->format
: DEFAULT_FORMAT
,
784 strbuf_release(&output
);
785 if (opt
->transform_mode
)
786 data
.split_on_whitespace
= 1;
788 if (opt
->format
&& !strcmp(opt
->format
, DEFAULT_FORMAT
))
791 * If we are printing out the object, then always fill in the type,
792 * since we will want to decide whether or not to stream.
794 if (opt
->batch_mode
== BATCH_MODE_CONTENTS
)
795 data
.info
.typep
= &data
.type
;
797 if (opt
->all_objects
) {
798 struct object_cb_data cb
;
799 struct object_info empty
= OBJECT_INFO_INIT
;
801 if (!memcmp(&data
.info
, &empty
, sizeof(empty
)))
802 data
.skip_object_info
= 1;
804 if (repo_has_promisor_remote(the_repository
))
805 warning("This repository uses promisor remotes. Some objects may not be loaded.");
807 read_replace_refs
= 0;
811 cb
.scratch
= &output
;
813 if (opt
->unordered
) {
814 struct oidset seen
= OIDSET_INIT
;
818 for_each_loose_object(batch_unordered_loose
, &cb
, 0);
819 for_each_packed_object(batch_unordered_packed
, &cb
,
820 FOR_EACH_OBJECT_PACK_ORDER
);
824 struct oid_array sa
= OID_ARRAY_INIT
;
826 for_each_loose_object(collect_loose_object
, &sa
, 0);
827 for_each_packed_object(collect_packed_object
, &sa
, 0);
829 oid_array_for_each_unique(&sa
, batch_object_cb
, &cb
);
831 oid_array_clear(&sa
);
834 strbuf_release(&output
);
839 * We are going to call get_sha1 on a potentially very large number of
840 * objects. In most large cases, these will be actual object sha1s. The
841 * cost to double-check that each one is not also a ref (just so we can
842 * warn) ends up dwarfing the actual cost of the object lookups
843 * themselves. We can work around it by just turning off the warning.
845 save_warning
= warn_on_object_refname_ambiguity
;
846 warn_on_object_refname_ambiguity
= 0;
848 if (opt
->batch_mode
== BATCH_MODE_QUEUE_AND_DISPATCH
) {
849 batch_objects_command(opt
, &output
, &data
);
855 if (opt
->nul_terminated
)
856 ret
= strbuf_getline_nul(&input
, stdin
);
858 ret
= strbuf_getline(&input
, stdin
);
863 if (data
.split_on_whitespace
) {
865 * Split at first whitespace, tying off the beginning
866 * of the string and saving the remainder (or NULL) in
869 char *p
= strpbrk(input
.buf
, " \t");
871 while (*p
&& strchr(" \t", *p
))
877 batch_one_object(input
.buf
, &output
, opt
, &data
);
881 strbuf_release(&input
);
882 strbuf_release(&output
);
883 warn_on_object_refname_ambiguity
= save_warning
;
887 static int git_cat_file_config(const char *var
, const char *value
, void *cb
)
889 if (userdiff_config(var
, value
) < 0)
892 return git_default_config(var
, value
, cb
);
895 static int batch_option_callback(const struct option
*opt
,
899 struct batch_options
*bo
= opt
->value
;
901 BUG_ON_OPT_NEG(unset
);
904 return error(_("only one batch option may be specified"));
909 if (!strcmp(opt
->long_name
, "batch"))
910 bo
->batch_mode
= BATCH_MODE_CONTENTS
;
911 else if (!strcmp(opt
->long_name
, "batch-check"))
912 bo
->batch_mode
= BATCH_MODE_INFO
;
913 else if (!strcmp(opt
->long_name
, "batch-command"))
914 bo
->batch_mode
= BATCH_MODE_QUEUE_AND_DISPATCH
;
916 BUG("%s given to batch-option-callback", opt
->long_name
);
923 int cmd_cat_file(int argc
, const char **argv
, const char *prefix
)
928 const char *exp_type
= NULL
, *obj_name
= NULL
;
929 struct batch_options batch
= {0};
930 int unknown_type
= 0;
932 const char * const usage
[] = {
933 N_("git cat-file <type> <object>"),
934 N_("git cat-file (-e | -p) <object>"),
935 N_("git cat-file (-t | -s) [--allow-unknown-type] <object>"),
936 N_("git cat-file (--batch | --batch-check | --batch-command) [--batch-all-objects]\n"
937 " [--buffer] [--follow-symlinks] [--unordered]\n"
938 " [--textconv | --filters] [-z]"),
939 N_("git cat-file (--textconv | --filters)\n"
940 " [<rev>:<path|tree-ish> | --path=<path|tree-ish> <rev>]"),
943 const struct option options
[] = {
945 OPT_GROUP(N_("Check object existence or emit object contents")),
946 OPT_CMDMODE('e', NULL
, &opt
,
947 N_("check if <object> exists"), 'e'),
948 OPT_CMDMODE('p', NULL
, &opt
, N_("pretty-print <object> content"), 'p'),
950 OPT_GROUP(N_("Emit [broken] object attributes")),
951 OPT_CMDMODE('t', NULL
, &opt
, N_("show object type (one of 'blob', 'tree', 'commit', 'tag', ...)"), 't'),
952 OPT_CMDMODE('s', NULL
, &opt
, N_("show object size"), 's'),
953 OPT_BOOL(0, "allow-unknown-type", &unknown_type
,
954 N_("allow -s and -t to work with broken/corrupt objects")),
955 OPT_BOOL(0, "use-mailmap", &use_mailmap
, N_("use mail map file")),
956 OPT_ALIAS(0, "mailmap", "use-mailmap"),
958 OPT_GROUP(N_("Batch objects requested on stdin (or --batch-all-objects)")),
959 OPT_CALLBACK_F(0, "batch", &batch
, N_("format"),
960 N_("show full <object> or <rev> contents"),
961 PARSE_OPT_OPTARG
| PARSE_OPT_NONEG
,
962 batch_option_callback
),
963 OPT_CALLBACK_F(0, "batch-check", &batch
, N_("format"),
964 N_("like --batch, but don't emit <contents>"),
965 PARSE_OPT_OPTARG
| PARSE_OPT_NONEG
,
966 batch_option_callback
),
967 OPT_BOOL('z', NULL
, &batch
.nul_terminated
, N_("stdin is NUL-terminated")),
968 OPT_CALLBACK_F(0, "batch-command", &batch
, N_("format"),
969 N_("read commands from stdin"),
970 PARSE_OPT_OPTARG
| PARSE_OPT_NONEG
,
971 batch_option_callback
),
972 OPT_CMDMODE(0, "batch-all-objects", &opt
,
973 N_("with --batch[-check]: ignores stdin, batches all known objects"), 'b'),
974 /* Batch-specific options */
975 OPT_GROUP(N_("Change or optimize batch output")),
976 OPT_BOOL(0, "buffer", &batch
.buffer_output
, N_("buffer --batch output")),
977 OPT_BOOL(0, "follow-symlinks", &batch
.follow_symlinks
,
978 N_("follow in-tree symlinks")),
979 OPT_BOOL(0, "unordered", &batch
.unordered
,
980 N_("do not order objects before emitting them")),
981 /* Textconv options, stand-ole*/
982 OPT_GROUP(N_("Emit object (blob or tree) with conversion or filter (stand-alone, or with batch)")),
983 OPT_CMDMODE(0, "textconv", &opt
,
984 N_("run textconv on object's content"), 'c'),
985 OPT_CMDMODE(0, "filters", &opt
,
986 N_("run filters on object's content"), 'w'),
987 OPT_STRING(0, "path", &force_path
, N_("blob|tree"),
988 N_("use a <path> for (--textconv | --filters); Not with 'batch'")),
992 git_config(git_cat_file_config
, NULL
);
994 batch
.buffer_output
= -1;
996 argc
= parse_options(argc
, argv
, prefix
, options
, usage
, 0);
997 opt_cw
= (opt
== 'c' || opt
== 'w');
998 opt_epts
= (opt
== 'e' || opt
== 'p' || opt
== 't' || opt
== 's');
1001 read_mailmap(&mailmap
);
1003 /* --batch-all-objects? */
1005 batch
.all_objects
= 1;
1007 /* Option compatibility */
1008 if (force_path
&& !opt_cw
)
1009 usage_msg_optf(_("'%s=<%s>' needs '%s' or '%s'"),
1011 "--path", _("path|tree-ish"), "--filters",
1014 /* Option compatibility with batch mode */
1017 else if (batch
.follow_symlinks
)
1018 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1019 "--follow-symlinks");
1020 else if (batch
.buffer_output
>= 0)
1021 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1023 else if (batch
.all_objects
)
1024 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1025 "--batch-all-objects");
1026 else if (batch
.nul_terminated
)
1027 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1030 /* Batch defaults */
1031 if (batch
.buffer_output
< 0)
1032 batch
.buffer_output
= batch
.all_objects
;
1034 /* Return early if we're in batch mode? */
1035 if (batch
.enabled
) {
1037 batch
.transform_mode
= opt
;
1038 else if (opt
&& opt
!= 'b')
1039 usage_msg_optf(_("'-%c' is incompatible with batch mode"),
1040 usage
, options
, opt
);
1042 usage_msg_opt(_("batch modes take no arguments"), usage
,
1045 return batch_objects(&batch
);
1049 if (!argc
&& opt
== 'c')
1050 usage_msg_optf(_("<rev> required with '%s'"),
1051 usage
, options
, "--textconv");
1052 else if (!argc
&& opt
== 'w')
1053 usage_msg_optf(_("<rev> required with '%s'"),
1054 usage
, options
, "--filters");
1055 else if (!argc
&& opt_epts
)
1056 usage_msg_optf(_("<object> required with '-%c'"),
1057 usage
, options
, opt
);
1061 usage_msg_opt(_("too many arguments"), usage
, options
);
1063 usage_with_options(usage
, options
);
1064 } else if (argc
!= 2) {
1065 usage_msg_optf(_("only two arguments allowed in <type> <object> mode, not %d"),
1066 usage
, options
, argc
);
1072 if (unknown_type
&& opt
!= 't' && opt
!= 's')
1073 die("git cat-file --allow-unknown-type: use with -s or -t");
1074 return cat_one_file(opt
, exp_type
, obj_name
, unknown_type
);