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-store.h"
23 #include "replace-object.h"
24 #include "promisor-remote.h"
26 #include "write-or-die.h"
31 BATCH_MODE_QUEUE_AND_DISPATCH
,
34 struct batch_options
{
37 enum batch_mode batch_mode
;
41 int transform_mode
; /* may be 'w' or 'c' for --filters or --textconv */
46 static const char *force_path
;
48 static struct string_list mailmap
= STRING_LIST_INIT_NODUP
;
49 static int use_mailmap
;
51 static char *replace_idents_using_mailmap(char *, size_t *);
53 static char *replace_idents_using_mailmap(char *object_buf
, size_t *size
)
55 struct strbuf sb
= STRBUF_INIT
;
56 const char *headers
[] = { "author ", "committer ", "tagger ", NULL
};
58 strbuf_attach(&sb
, object_buf
, *size
, *size
+ 1);
59 apply_mailmap_to_header(&sb
, headers
, &mailmap
);
61 return strbuf_detach(&sb
, NULL
);
64 static int filter_object(const char *path
, unsigned mode
,
65 const struct object_id
*oid
,
66 char **buf
, unsigned long *size
)
68 enum object_type type
;
70 *buf
= repo_read_object_file(the_repository
, oid
, &type
, size
);
72 return error(_("cannot read object %s '%s'"),
73 oid_to_hex(oid
), path
);
74 if ((type
== OBJ_BLOB
) && S_ISREG(mode
)) {
75 struct strbuf strbuf
= STRBUF_INIT
;
76 struct checkout_metadata meta
;
78 init_checkout_metadata(&meta
, NULL
, NULL
, oid
);
79 if (convert_to_working_tree(&the_index
, path
, *buf
, *size
, &strbuf
, &meta
)) {
82 *buf
= strbuf_detach(&strbuf
, NULL
);
89 static int stream_blob(const struct object_id
*oid
)
91 if (stream_blob_to_fd(1, oid
, NULL
, 0))
92 die("unable to stream %s to stdout", oid_to_hex(oid
));
96 static int cat_one_file(int opt
, const char *exp_type
, const char *obj_name
,
100 struct object_id oid
;
101 enum object_type type
;
104 struct object_context obj_context
;
105 struct object_info oi
= OBJECT_INFO_INIT
;
106 struct strbuf sb
= STRBUF_INIT
;
107 unsigned flags
= OBJECT_INFO_LOOKUP_REPLACE
;
108 unsigned get_oid_flags
= GET_OID_RECORD_PATH
| GET_OID_ONLY_TO_DIE
;
109 const char *path
= force_path
;
110 const int opt_cw
= (opt
== 'c' || opt
== 'w');
112 get_oid_flags
|= GET_OID_REQUIRE_PATH
;
115 flags
|= OBJECT_INFO_ALLOW_UNKNOWN_TYPE
;
117 if (get_oid_with_context(the_repository
, obj_name
, get_oid_flags
, &oid
,
119 die("Not a valid object name %s", obj_name
);
122 path
= obj_context
.path
;
123 if (obj_context
.mode
== S_IFINVALID
)
124 obj_context
.mode
= 0100644;
130 if (oid_object_info_extended(the_repository
, &oid
, &oi
, flags
) < 0)
131 die("git cat-file: could not get object info");
133 printf("%s\n", sb
.buf
);
145 oi
.contentp
= (void**)&buf
;
148 if (oid_object_info_extended(the_repository
, &oid
, &oi
, flags
) < 0)
149 die("git cat-file: could not get object info");
151 if (use_mailmap
&& (type
== OBJ_COMMIT
|| type
== OBJ_TAG
)) {
153 buf
= replace_idents_using_mailmap(buf
, &s
);
154 size
= cast_size_t_to_ulong(s
);
157 printf("%"PRIuMAX
"\n", (uintmax_t)size
);
162 return !repo_has_object_file(the_repository
, &oid
);
166 if (filter_object(path
, obj_context
.mode
,
167 &oid
, &buf
, &size
)) {
174 if (textconv_object(the_repository
, path
, obj_context
.mode
,
175 &oid
, 1, &buf
, &size
))
177 /* else fallthrough */
180 type
= oid_object_info(the_repository
, &oid
, NULL
);
182 die("Not a valid object name %s", obj_name
);
184 /* custom pretty-print here */
185 if (type
== OBJ_TREE
) {
186 const char *ls_args
[3] = { NULL
};
187 ls_args
[0] = "ls-tree";
188 ls_args
[1] = obj_name
;
189 ret
= cmd_ls_tree(2, ls_args
, NULL
);
193 if (type
== OBJ_BLOB
) {
194 ret
= stream_blob(&oid
);
197 buf
= repo_read_object_file(the_repository
, &oid
, &type
,
200 die("Cannot read object %s", obj_name
);
204 buf
= replace_idents_using_mailmap(buf
, &s
);
205 size
= cast_size_t_to_ulong(s
);
208 /* otherwise just spit out the data */
213 enum object_type exp_type_id
= type_from_string(exp_type
);
215 if (exp_type_id
== OBJ_BLOB
) {
216 struct object_id blob_oid
;
217 if (oid_object_info(the_repository
, &oid
, NULL
) == OBJ_TAG
) {
218 char *buffer
= repo_read_object_file(the_repository
,
223 if (!skip_prefix(buffer
, "object ", &target
) ||
224 get_oid_hex(target
, &blob_oid
))
225 die("%s not a valid tag", oid_to_hex(&oid
));
228 oidcpy(&blob_oid
, &oid
);
230 if (oid_object_info(the_repository
, &blob_oid
, NULL
) == OBJ_BLOB
) {
231 ret
= stream_blob(&blob_oid
);
235 * we attempted to dereference a tag to a blob
236 * and failed; there may be new dereference
237 * mechanisms this code is not aware of.
238 * fall-back to the usual case.
241 buf
= read_object_with_reference(the_repository
, &oid
,
242 exp_type_id
, &size
, NULL
);
246 buf
= replace_idents_using_mailmap(buf
, &s
);
247 size
= cast_size_t_to_ulong(s
);
252 die("git cat-file: unknown option: %s", exp_type
);
256 die("git cat-file %s: bad file", obj_name
);
258 write_or_die(1, buf
, size
);
262 free(obj_context
.path
);
267 struct object_id oid
;
268 enum object_type type
;
272 struct object_id delta_base_oid
;
275 * If mark_query is true, we do not expand anything, but rather
276 * just mark the object_info with items we wish to query.
281 * Whether to split the input on whitespace before feeding it to
282 * get_sha1; this is decided during the mark_query phase based on
283 * whether we have a %(rest) token in our format.
285 int split_on_whitespace
;
288 * After a mark_query run, this object_info is set up to be
289 * passed to oid_object_info_extended. It will point to the data
290 * elements above, so you can retrieve the response from there.
292 struct object_info info
;
295 * This flag will be true if the requested batch format and options
296 * don't require us to call oid_object_info, which can then be
299 unsigned skip_object_info
: 1;
302 static int is_atom(const char *atom
, const char *s
, int slen
)
304 int alen
= strlen(atom
);
305 return alen
== slen
&& !memcmp(atom
, s
, alen
);
308 static void expand_atom(struct strbuf
*sb
, const char *atom
, int len
,
311 struct expand_data
*data
= vdata
;
313 if (is_atom("objectname", atom
, len
)) {
314 if (!data
->mark_query
)
315 strbuf_addstr(sb
, oid_to_hex(&data
->oid
));
316 } else if (is_atom("objecttype", atom
, len
)) {
317 if (data
->mark_query
)
318 data
->info
.typep
= &data
->type
;
320 strbuf_addstr(sb
, type_name(data
->type
));
321 } else if (is_atom("objectsize", atom
, len
)) {
322 if (data
->mark_query
)
323 data
->info
.sizep
= &data
->size
;
325 strbuf_addf(sb
, "%"PRIuMAX
, (uintmax_t)data
->size
);
326 } else if (is_atom("objectsize:disk", atom
, len
)) {
327 if (data
->mark_query
)
328 data
->info
.disk_sizep
= &data
->disk_size
;
330 strbuf_addf(sb
, "%"PRIuMAX
, (uintmax_t)data
->disk_size
);
331 } else if (is_atom("rest", atom
, len
)) {
332 if (data
->mark_query
)
333 data
->split_on_whitespace
= 1;
335 strbuf_addstr(sb
, data
->rest
);
336 } else if (is_atom("deltabase", atom
, len
)) {
337 if (data
->mark_query
)
338 data
->info
.delta_base_oid
= &data
->delta_base_oid
;
341 oid_to_hex(&data
->delta_base_oid
));
343 die("unknown format element: %.*s", len
, atom
);
346 static size_t expand_format(struct strbuf
*sb
, const char *start
, void *data
)
352 end
= strchr(start
+ 1, ')');
354 die("format element '%s' does not end in ')'", start
);
356 expand_atom(sb
, start
+ 1, end
- start
- 1, data
);
358 return end
- start
+ 1;
361 static void batch_write(struct batch_options
*opt
, const void *data
, int len
)
363 if (opt
->buffer_output
) {
364 if (fwrite(data
, 1, len
, stdout
) != len
)
365 die_errno("unable to write to stdout");
367 write_or_die(1, data
, len
);
370 static void print_object_or_die(struct batch_options
*opt
, struct expand_data
*data
)
372 const struct object_id
*oid
= &data
->oid
;
374 assert(data
->info
.typep
);
376 if (data
->type
== OBJ_BLOB
) {
377 if (opt
->buffer_output
)
379 if (opt
->transform_mode
) {
384 die("missing path for '%s'", oid_to_hex(oid
));
386 if (opt
->transform_mode
== 'w') {
387 if (filter_object(data
->rest
, 0100644, oid
,
389 die("could not convert '%s' %s",
390 oid_to_hex(oid
), data
->rest
);
391 } else if (opt
->transform_mode
== 'c') {
392 enum object_type type
;
393 if (!textconv_object(the_repository
,
394 data
->rest
, 0100644, oid
,
395 1, &contents
, &size
))
396 contents
= repo_read_object_file(the_repository
,
401 die("could not convert '%s' %s",
402 oid_to_hex(oid
), data
->rest
);
404 BUG("invalid transform_mode: %c", opt
->transform_mode
);
405 batch_write(opt
, contents
, size
);
412 enum object_type type
;
416 contents
= repo_read_object_file(the_repository
, oid
, &type
,
421 contents
= replace_idents_using_mailmap(contents
, &s
);
422 size
= cast_size_t_to_ulong(s
);
426 die("object %s disappeared", oid_to_hex(oid
));
427 if (type
!= data
->type
)
428 die("object %s changed type!?", oid_to_hex(oid
));
429 if (data
->info
.sizep
&& size
!= data
->size
&& !use_mailmap
)
430 die("object %s changed size!?", oid_to_hex(oid
));
432 batch_write(opt
, contents
, size
);
437 static void print_default_format(struct strbuf
*scratch
, struct expand_data
*data
)
439 strbuf_addf(scratch
, "%s %s %"PRIuMAX
"\n", oid_to_hex(&data
->oid
),
440 type_name(data
->type
),
441 (uintmax_t)data
->size
);
445 * If "pack" is non-NULL, then "offset" is the byte offset within the pack from
446 * which the object may be accessed (though note that we may also rely on
447 * data->oid, too). If "pack" is NULL, then offset is ignored.
449 static void batch_object_write(const char *obj_name
,
450 struct strbuf
*scratch
,
451 struct batch_options
*opt
,
452 struct expand_data
*data
,
453 struct packed_git
*pack
,
456 if (!data
->skip_object_info
) {
460 data
->info
.typep
= &data
->type
;
463 ret
= packed_object_info(the_repository
, pack
, offset
,
466 ret
= oid_object_info_extended(the_repository
,
467 &data
->oid
, &data
->info
,
468 OBJECT_INFO_LOOKUP_REPLACE
);
470 printf("%s missing\n",
471 obj_name
? obj_name
: oid_to_hex(&data
->oid
));
476 if (use_mailmap
&& (data
->type
== OBJ_COMMIT
|| data
->type
== OBJ_TAG
)) {
477 size_t s
= data
->size
;
480 buf
= repo_read_object_file(the_repository
, &data
->oid
, &data
->type
,
482 buf
= replace_idents_using_mailmap(buf
, &s
);
483 data
->size
= cast_size_t_to_ulong(s
);
489 strbuf_reset(scratch
);
492 print_default_format(scratch
, data
);
494 strbuf_expand(scratch
, opt
->format
, expand_format
, data
);
495 strbuf_addch(scratch
, '\n');
498 batch_write(opt
, scratch
->buf
, scratch
->len
);
500 if (opt
->batch_mode
== BATCH_MODE_CONTENTS
) {
501 print_object_or_die(opt
, data
);
502 batch_write(opt
, "\n", 1);
506 static void batch_one_object(const char *obj_name
,
507 struct strbuf
*scratch
,
508 struct batch_options
*opt
,
509 struct expand_data
*data
)
511 struct object_context ctx
;
512 int flags
= opt
->follow_symlinks
? GET_OID_FOLLOW_SYMLINKS
: 0;
513 enum get_oid_result result
;
515 result
= get_oid_with_context(the_repository
, obj_name
,
516 flags
, &data
->oid
, &ctx
);
517 if (result
!= FOUND
) {
520 printf("%s missing\n", obj_name
);
522 case SHORT_NAME_AMBIGUOUS
:
523 printf("%s ambiguous\n", obj_name
);
525 case DANGLING_SYMLINK
:
526 printf("dangling %"PRIuMAX
"\n%s\n",
527 (uintmax_t)strlen(obj_name
), obj_name
);
530 printf("loop %"PRIuMAX
"\n%s\n",
531 (uintmax_t)strlen(obj_name
), obj_name
);
534 printf("notdir %"PRIuMAX
"\n%s\n",
535 (uintmax_t)strlen(obj_name
), obj_name
);
538 BUG("unknown get_sha1_with_context result %d\n",
547 printf("symlink %"PRIuMAX
"\n%s\n",
548 (uintmax_t)ctx
.symlink_path
.len
,
549 ctx
.symlink_path
.buf
);
554 batch_object_write(obj_name
, scratch
, opt
, data
, NULL
, 0);
557 struct object_cb_data
{
558 struct batch_options
*opt
;
559 struct expand_data
*expand
;
561 struct strbuf
*scratch
;
564 static int batch_object_cb(const struct object_id
*oid
, void *vdata
)
566 struct object_cb_data
*data
= vdata
;
567 oidcpy(&data
->expand
->oid
, oid
);
568 batch_object_write(NULL
, data
->scratch
, data
->opt
, data
->expand
,
573 static int collect_loose_object(const struct object_id
*oid
,
574 const char *path UNUSED
,
577 oid_array_append(data
, oid
);
581 static int collect_packed_object(const struct object_id
*oid
,
582 struct packed_git
*pack UNUSED
,
586 oid_array_append(data
, oid
);
590 static int batch_unordered_object(const struct object_id
*oid
,
591 struct packed_git
*pack
, off_t offset
,
594 struct object_cb_data
*data
= vdata
;
596 if (oidset_insert(data
->seen
, oid
))
599 oidcpy(&data
->expand
->oid
, oid
);
600 batch_object_write(NULL
, data
->scratch
, data
->opt
, data
->expand
,
605 static int batch_unordered_loose(const struct object_id
*oid
,
606 const char *path UNUSED
,
609 return batch_unordered_object(oid
, NULL
, 0, data
);
612 static int batch_unordered_packed(const struct object_id
*oid
,
613 struct packed_git
*pack
,
617 return batch_unordered_object(oid
, pack
,
618 nth_packed_object_offset(pack
, pos
),
622 typedef void (*parse_cmd_fn_t
)(struct batch_options
*, const char *,
623 struct strbuf
*, struct expand_data
*);
630 static void parse_cmd_contents(struct batch_options
*opt
,
632 struct strbuf
*output
,
633 struct expand_data
*data
)
635 opt
->batch_mode
= BATCH_MODE_CONTENTS
;
636 batch_one_object(line
, output
, opt
, data
);
639 static void parse_cmd_info(struct batch_options
*opt
,
641 struct strbuf
*output
,
642 struct expand_data
*data
)
644 opt
->batch_mode
= BATCH_MODE_INFO
;
645 batch_one_object(line
, output
, opt
, data
);
648 static void dispatch_calls(struct batch_options
*opt
,
649 struct strbuf
*output
,
650 struct expand_data
*data
,
651 struct queued_cmd
*cmd
,
656 if (!opt
->buffer_output
)
657 die(_("flush is only for --buffer mode"));
659 for (i
= 0; i
< nr
; i
++)
660 cmd
[i
].fn(opt
, cmd
[i
].line
, output
, data
);
665 static void free_cmds(struct queued_cmd
*cmd
, size_t *nr
)
669 for (i
= 0; i
< *nr
; i
++)
670 FREE_AND_NULL(cmd
[i
].line
);
676 static const struct parse_cmd
{
681 { "contents", parse_cmd_contents
, 1},
682 { "info", parse_cmd_info
, 1},
686 static void batch_objects_command(struct batch_options
*opt
,
687 struct strbuf
*output
,
688 struct expand_data
*data
)
690 struct strbuf input
= STRBUF_INIT
;
691 struct queued_cmd
*queued_cmd
= NULL
;
692 size_t alloc
= 0, nr
= 0;
696 const struct parse_cmd
*cmd
= NULL
;
697 const char *p
= NULL
, *cmd_end
;
698 struct queued_cmd call
= {0};
700 if (opt
->nul_terminated
)
701 ret
= strbuf_getline_nul(&input
, stdin
);
703 ret
= strbuf_getline(&input
, stdin
);
709 die(_("empty command in input"));
710 if (isspace(*input
.buf
))
711 die(_("whitespace before command: '%s'"), input
.buf
);
713 for (i
= 0; i
< ARRAY_SIZE(commands
); i
++) {
714 if (!skip_prefix(input
.buf
, commands
[i
].name
, &cmd_end
))
718 if (cmd
->takes_args
) {
720 die(_("%s requires arguments"),
724 } else if (*cmd_end
) {
725 die(_("%s takes no arguments"),
733 die(_("unknown command: '%s'"), input
.buf
);
735 if (!strcmp(cmd
->name
, "flush")) {
736 dispatch_calls(opt
, output
, data
, queued_cmd
, nr
);
737 free_cmds(queued_cmd
, &nr
);
738 } else if (!opt
->buffer_output
) {
739 cmd
->fn(opt
, p
, output
, data
);
741 ALLOC_GROW(queued_cmd
, nr
+ 1, alloc
);
743 call
.line
= xstrdup_or_null(p
);
744 queued_cmd
[nr
++] = call
;
748 if (opt
->buffer_output
&&
750 !git_env_bool("GIT_TEST_CAT_FILE_NO_FLUSH_ON_EXIT", 0)) {
751 dispatch_calls(opt
, output
, data
, queued_cmd
, nr
);
752 free_cmds(queued_cmd
, &nr
);
755 free_cmds(queued_cmd
, &nr
);
757 strbuf_release(&input
);
760 #define DEFAULT_FORMAT "%(objectname) %(objecttype) %(objectsize)"
762 static int batch_objects(struct batch_options
*opt
)
764 struct strbuf input
= STRBUF_INIT
;
765 struct strbuf output
= STRBUF_INIT
;
766 struct expand_data data
;
771 * Expand once with our special mark_query flag, which will prime the
772 * object_info to be handed to oid_object_info_extended for each
775 memset(&data
, 0, sizeof(data
));
777 strbuf_expand(&output
,
778 opt
->format
? opt
->format
: DEFAULT_FORMAT
,
782 strbuf_release(&output
);
783 if (opt
->transform_mode
)
784 data
.split_on_whitespace
= 1;
786 if (opt
->format
&& !strcmp(opt
->format
, DEFAULT_FORMAT
))
789 * If we are printing out the object, then always fill in the type,
790 * since we will want to decide whether or not to stream.
792 if (opt
->batch_mode
== BATCH_MODE_CONTENTS
)
793 data
.info
.typep
= &data
.type
;
795 if (opt
->all_objects
) {
796 struct object_cb_data cb
;
797 struct object_info empty
= OBJECT_INFO_INIT
;
799 if (!memcmp(&data
.info
, &empty
, sizeof(empty
)))
800 data
.skip_object_info
= 1;
802 if (repo_has_promisor_remote(the_repository
))
803 warning("This repository uses promisor remotes. Some objects may not be loaded.");
805 read_replace_refs
= 0;
809 cb
.scratch
= &output
;
811 if (opt
->unordered
) {
812 struct oidset seen
= OIDSET_INIT
;
816 for_each_loose_object(batch_unordered_loose
, &cb
, 0);
817 for_each_packed_object(batch_unordered_packed
, &cb
,
818 FOR_EACH_OBJECT_PACK_ORDER
);
822 struct oid_array sa
= OID_ARRAY_INIT
;
824 for_each_loose_object(collect_loose_object
, &sa
, 0);
825 for_each_packed_object(collect_packed_object
, &sa
, 0);
827 oid_array_for_each_unique(&sa
, batch_object_cb
, &cb
);
829 oid_array_clear(&sa
);
832 strbuf_release(&output
);
837 * We are going to call get_sha1 on a potentially very large number of
838 * objects. In most large cases, these will be actual object sha1s. The
839 * cost to double-check that each one is not also a ref (just so we can
840 * warn) ends up dwarfing the actual cost of the object lookups
841 * themselves. We can work around it by just turning off the warning.
843 save_warning
= warn_on_object_refname_ambiguity
;
844 warn_on_object_refname_ambiguity
= 0;
846 if (opt
->batch_mode
== BATCH_MODE_QUEUE_AND_DISPATCH
) {
847 batch_objects_command(opt
, &output
, &data
);
853 if (opt
->nul_terminated
)
854 ret
= strbuf_getline_nul(&input
, stdin
);
856 ret
= strbuf_getline(&input
, stdin
);
861 if (data
.split_on_whitespace
) {
863 * Split at first whitespace, tying off the beginning
864 * of the string and saving the remainder (or NULL) in
867 char *p
= strpbrk(input
.buf
, " \t");
869 while (*p
&& strchr(" \t", *p
))
875 batch_one_object(input
.buf
, &output
, opt
, &data
);
879 strbuf_release(&input
);
880 strbuf_release(&output
);
881 warn_on_object_refname_ambiguity
= save_warning
;
885 static int git_cat_file_config(const char *var
, const char *value
, void *cb
)
887 if (userdiff_config(var
, value
) < 0)
890 return git_default_config(var
, value
, cb
);
893 static int batch_option_callback(const struct option
*opt
,
897 struct batch_options
*bo
= opt
->value
;
899 BUG_ON_OPT_NEG(unset
);
902 return error(_("only one batch option may be specified"));
907 if (!strcmp(opt
->long_name
, "batch"))
908 bo
->batch_mode
= BATCH_MODE_CONTENTS
;
909 else if (!strcmp(opt
->long_name
, "batch-check"))
910 bo
->batch_mode
= BATCH_MODE_INFO
;
911 else if (!strcmp(opt
->long_name
, "batch-command"))
912 bo
->batch_mode
= BATCH_MODE_QUEUE_AND_DISPATCH
;
914 BUG("%s given to batch-option-callback", opt
->long_name
);
921 int cmd_cat_file(int argc
, const char **argv
, const char *prefix
)
926 const char *exp_type
= NULL
, *obj_name
= NULL
;
927 struct batch_options batch
= {0};
928 int unknown_type
= 0;
930 const char * const usage
[] = {
931 N_("git cat-file <type> <object>"),
932 N_("git cat-file (-e | -p) <object>"),
933 N_("git cat-file (-t | -s) [--allow-unknown-type] <object>"),
934 N_("git cat-file (--batch | --batch-check | --batch-command) [--batch-all-objects]\n"
935 " [--buffer] [--follow-symlinks] [--unordered]\n"
936 " [--textconv | --filters] [-z]"),
937 N_("git cat-file (--textconv | --filters)\n"
938 " [<rev>:<path|tree-ish> | --path=<path|tree-ish> <rev>]"),
941 const struct option options
[] = {
943 OPT_GROUP(N_("Check object existence or emit object contents")),
944 OPT_CMDMODE('e', NULL
, &opt
,
945 N_("check if <object> exists"), 'e'),
946 OPT_CMDMODE('p', NULL
, &opt
, N_("pretty-print <object> content"), 'p'),
948 OPT_GROUP(N_("Emit [broken] object attributes")),
949 OPT_CMDMODE('t', NULL
, &opt
, N_("show object type (one of 'blob', 'tree', 'commit', 'tag', ...)"), 't'),
950 OPT_CMDMODE('s', NULL
, &opt
, N_("show object size"), 's'),
951 OPT_BOOL(0, "allow-unknown-type", &unknown_type
,
952 N_("allow -s and -t to work with broken/corrupt objects")),
953 OPT_BOOL(0, "use-mailmap", &use_mailmap
, N_("use mail map file")),
954 OPT_ALIAS(0, "mailmap", "use-mailmap"),
956 OPT_GROUP(N_("Batch objects requested on stdin (or --batch-all-objects)")),
957 OPT_CALLBACK_F(0, "batch", &batch
, N_("format"),
958 N_("show full <object> or <rev> contents"),
959 PARSE_OPT_OPTARG
| PARSE_OPT_NONEG
,
960 batch_option_callback
),
961 OPT_CALLBACK_F(0, "batch-check", &batch
, N_("format"),
962 N_("like --batch, but don't emit <contents>"),
963 PARSE_OPT_OPTARG
| PARSE_OPT_NONEG
,
964 batch_option_callback
),
965 OPT_BOOL('z', NULL
, &batch
.nul_terminated
, N_("stdin is NUL-terminated")),
966 OPT_CALLBACK_F(0, "batch-command", &batch
, N_("format"),
967 N_("read commands from stdin"),
968 PARSE_OPT_OPTARG
| PARSE_OPT_NONEG
,
969 batch_option_callback
),
970 OPT_CMDMODE(0, "batch-all-objects", &opt
,
971 N_("with --batch[-check]: ignores stdin, batches all known objects"), 'b'),
972 /* Batch-specific options */
973 OPT_GROUP(N_("Change or optimize batch output")),
974 OPT_BOOL(0, "buffer", &batch
.buffer_output
, N_("buffer --batch output")),
975 OPT_BOOL(0, "follow-symlinks", &batch
.follow_symlinks
,
976 N_("follow in-tree symlinks")),
977 OPT_BOOL(0, "unordered", &batch
.unordered
,
978 N_("do not order objects before emitting them")),
979 /* Textconv options, stand-ole*/
980 OPT_GROUP(N_("Emit object (blob or tree) with conversion or filter (stand-alone, or with batch)")),
981 OPT_CMDMODE(0, "textconv", &opt
,
982 N_("run textconv on object's content"), 'c'),
983 OPT_CMDMODE(0, "filters", &opt
,
984 N_("run filters on object's content"), 'w'),
985 OPT_STRING(0, "path", &force_path
, N_("blob|tree"),
986 N_("use a <path> for (--textconv | --filters); Not with 'batch'")),
990 git_config(git_cat_file_config
, NULL
);
992 batch
.buffer_output
= -1;
994 argc
= parse_options(argc
, argv
, prefix
, options
, usage
, 0);
995 opt_cw
= (opt
== 'c' || opt
== 'w');
996 opt_epts
= (opt
== 'e' || opt
== 'p' || opt
== 't' || opt
== 's');
999 read_mailmap(&mailmap
);
1001 /* --batch-all-objects? */
1003 batch
.all_objects
= 1;
1005 /* Option compatibility */
1006 if (force_path
&& !opt_cw
)
1007 usage_msg_optf(_("'%s=<%s>' needs '%s' or '%s'"),
1009 "--path", _("path|tree-ish"), "--filters",
1012 /* Option compatibility with batch mode */
1015 else if (batch
.follow_symlinks
)
1016 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1017 "--follow-symlinks");
1018 else if (batch
.buffer_output
>= 0)
1019 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1021 else if (batch
.all_objects
)
1022 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1023 "--batch-all-objects");
1024 else if (batch
.nul_terminated
)
1025 usage_msg_optf(_("'%s' requires a batch mode"), usage
, options
,
1028 /* Batch defaults */
1029 if (batch
.buffer_output
< 0)
1030 batch
.buffer_output
= batch
.all_objects
;
1032 /* Return early if we're in batch mode? */
1033 if (batch
.enabled
) {
1035 batch
.transform_mode
= opt
;
1036 else if (opt
&& opt
!= 'b')
1037 usage_msg_optf(_("'-%c' is incompatible with batch mode"),
1038 usage
, options
, opt
);
1040 usage_msg_opt(_("batch modes take no arguments"), usage
,
1043 return batch_objects(&batch
);
1047 if (!argc
&& opt
== 'c')
1048 usage_msg_optf(_("<rev> required with '%s'"),
1049 usage
, options
, "--textconv");
1050 else if (!argc
&& opt
== 'w')
1051 usage_msg_optf(_("<rev> required with '%s'"),
1052 usage
, options
, "--filters");
1053 else if (!argc
&& opt_epts
)
1054 usage_msg_optf(_("<object> required with '-%c'"),
1055 usage
, options
, opt
);
1059 usage_msg_opt(_("too many arguments"), usage
, options
);
1061 usage_with_options(usage
, options
);
1062 } else if (argc
!= 2) {
1063 usage_msg_optf(_("only two arguments allowed in <type> <object> mode, not %d"),
1064 usage
, options
, argc
);
1070 if (unknown_type
&& opt
!= 't' && opt
!= 's')
1071 die("git cat-file --allow-unknown-type: use with -s or -t");
1072 return cat_one_file(opt
, exp_type
, obj_name
, unknown_type
);