mirror of
https://github.com/git/git
synced 2024-08-25 02:35:46 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
More work towards -Wunused. * jk/unused-post-2.39-part2: (21 commits) help: mark unused parameter in git_unknown_cmd_config() run_processes_parallel: mark unused callback parameters userformat_want_item(): mark unused parameter for_each_commit_graft(): mark unused callback parameter rewrite_parents(): mark unused callback parameter fetch-pack: mark unused parameter in callback function notes: mark unused callback parameters prio-queue: mark unused parameters in comparison functions for_each_object: mark unused callback parameters list-objects: mark unused callback parameters mark unused parameters in signal handlers run-command: mark error routine parameters as unused mark "pointless" data pointers in callbacks ref-filter: mark unused callback parameters http-backend: mark unused parameters in virtual functions http-backend: mark argc/argv unused object-name: mark unused parameters in disambiguate callbacks serve: mark unused parameters in virtual functions serve: use repository pointer to get config ls-refs: drop config caching ...
1066 lines
27 KiB
C
1066 lines
27 KiB
C
/*
|
|
* GIT - The information manager from hell
|
|
*
|
|
* Copyright (C) Linus Torvalds, 2005
|
|
*/
|
|
#define USE_THE_INDEX_VARIABLE
|
|
#include "cache.h"
|
|
#include "alloc.h"
|
|
#include "config.h"
|
|
#include "builtin.h"
|
|
#include "diff.h"
|
|
#include "hex.h"
|
|
#include "ident.h"
|
|
#include "parse-options.h"
|
|
#include "userdiff.h"
|
|
#include "streaming.h"
|
|
#include "tree-walk.h"
|
|
#include "oid-array.h"
|
|
#include "packfile.h"
|
|
#include "object-store.h"
|
|
#include "replace-object.h"
|
|
#include "promisor-remote.h"
|
|
#include "mailmap.h"
|
|
|
|
enum batch_mode {
|
|
BATCH_MODE_CONTENTS,
|
|
BATCH_MODE_INFO,
|
|
BATCH_MODE_QUEUE_AND_DISPATCH,
|
|
};
|
|
|
|
struct batch_options {
|
|
int enabled;
|
|
int follow_symlinks;
|
|
enum batch_mode batch_mode;
|
|
int buffer_output;
|
|
int all_objects;
|
|
int unordered;
|
|
int transform_mode; /* may be 'w' or 'c' for --filters or --textconv */
|
|
int nul_terminated;
|
|
const char *format;
|
|
};
|
|
|
|
static const char *force_path;
|
|
|
|
static struct string_list mailmap = STRING_LIST_INIT_NODUP;
|
|
static int use_mailmap;
|
|
|
|
static char *replace_idents_using_mailmap(char *, size_t *);
|
|
|
|
static char *replace_idents_using_mailmap(char *object_buf, size_t *size)
|
|
{
|
|
struct strbuf sb = STRBUF_INIT;
|
|
const char *headers[] = { "author ", "committer ", "tagger ", NULL };
|
|
|
|
strbuf_attach(&sb, object_buf, *size, *size + 1);
|
|
apply_mailmap_to_header(&sb, headers, &mailmap);
|
|
*size = sb.len;
|
|
return strbuf_detach(&sb, NULL);
|
|
}
|
|
|
|
static int filter_object(const char *path, unsigned mode,
|
|
const struct object_id *oid,
|
|
char **buf, unsigned long *size)
|
|
{
|
|
enum object_type type;
|
|
|
|
*buf = read_object_file(oid, &type, size);
|
|
if (!*buf)
|
|
return error(_("cannot read object %s '%s'"),
|
|
oid_to_hex(oid), path);
|
|
if ((type == OBJ_BLOB) && S_ISREG(mode)) {
|
|
struct strbuf strbuf = STRBUF_INIT;
|
|
struct checkout_metadata meta;
|
|
|
|
init_checkout_metadata(&meta, NULL, NULL, oid);
|
|
if (convert_to_working_tree(&the_index, path, *buf, *size, &strbuf, &meta)) {
|
|
free(*buf);
|
|
*size = strbuf.len;
|
|
*buf = strbuf_detach(&strbuf, NULL);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stream_blob(const struct object_id *oid)
|
|
{
|
|
if (stream_blob_to_fd(1, oid, NULL, 0))
|
|
die("unable to stream %s to stdout", oid_to_hex(oid));
|
|
return 0;
|
|
}
|
|
|
|
static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
|
|
int unknown_type)
|
|
{
|
|
int ret;
|
|
struct object_id oid;
|
|
enum object_type type;
|
|
char *buf;
|
|
unsigned long size;
|
|
struct object_context obj_context;
|
|
struct object_info oi = OBJECT_INFO_INIT;
|
|
struct strbuf sb = STRBUF_INIT;
|
|
unsigned flags = OBJECT_INFO_LOOKUP_REPLACE;
|
|
unsigned get_oid_flags = GET_OID_RECORD_PATH | GET_OID_ONLY_TO_DIE;
|
|
const char *path = force_path;
|
|
const int opt_cw = (opt == 'c' || opt == 'w');
|
|
if (!path && opt_cw)
|
|
get_oid_flags |= GET_OID_REQUIRE_PATH;
|
|
|
|
if (unknown_type)
|
|
flags |= OBJECT_INFO_ALLOW_UNKNOWN_TYPE;
|
|
|
|
if (get_oid_with_context(the_repository, obj_name, get_oid_flags, &oid,
|
|
&obj_context))
|
|
die("Not a valid object name %s", obj_name);
|
|
|
|
if (!path)
|
|
path = obj_context.path;
|
|
if (obj_context.mode == S_IFINVALID)
|
|
obj_context.mode = 0100644;
|
|
|
|
buf = NULL;
|
|
switch (opt) {
|
|
case 't':
|
|
oi.type_name = &sb;
|
|
if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0)
|
|
die("git cat-file: could not get object info");
|
|
if (sb.len) {
|
|
printf("%s\n", sb.buf);
|
|
strbuf_release(&sb);
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
oi.sizep = &size;
|
|
|
|
if (use_mailmap) {
|
|
oi.typep = &type;
|
|
oi.contentp = (void**)&buf;
|
|
}
|
|
|
|
if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0)
|
|
die("git cat-file: could not get object info");
|
|
|
|
if (use_mailmap && (type == OBJ_COMMIT || type == OBJ_TAG)) {
|
|
size_t s = size;
|
|
buf = replace_idents_using_mailmap(buf, &s);
|
|
size = cast_size_t_to_ulong(s);
|
|
}
|
|
|
|
printf("%"PRIuMAX"\n", (uintmax_t)size);
|
|
ret = 0;
|
|
goto cleanup;
|
|
|
|
case 'e':
|
|
return !has_object_file(&oid);
|
|
|
|
case 'w':
|
|
|
|
if (filter_object(path, obj_context.mode,
|
|
&oid, &buf, &size)) {
|
|
ret = -1;
|
|
goto cleanup;
|
|
}
|
|
break;
|
|
|
|
case 'c':
|
|
if (textconv_object(the_repository, path, obj_context.mode,
|
|
&oid, 1, &buf, &size))
|
|
break;
|
|
/* else fallthrough */
|
|
|
|
case 'p':
|
|
type = oid_object_info(the_repository, &oid, NULL);
|
|
if (type < 0)
|
|
die("Not a valid object name %s", obj_name);
|
|
|
|
/* custom pretty-print here */
|
|
if (type == OBJ_TREE) {
|
|
const char *ls_args[3] = { NULL };
|
|
ls_args[0] = "ls-tree";
|
|
ls_args[1] = obj_name;
|
|
ret = cmd_ls_tree(2, ls_args, NULL);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (type == OBJ_BLOB) {
|
|
ret = stream_blob(&oid);
|
|
goto cleanup;
|
|
}
|
|
buf = read_object_file(&oid, &type, &size);
|
|
if (!buf)
|
|
die("Cannot read object %s", obj_name);
|
|
|
|
if (use_mailmap) {
|
|
size_t s = size;
|
|
buf = replace_idents_using_mailmap(buf, &s);
|
|
size = cast_size_t_to_ulong(s);
|
|
}
|
|
|
|
/* otherwise just spit out the data */
|
|
break;
|
|
|
|
case 0:
|
|
{
|
|
enum object_type exp_type_id = type_from_string(exp_type);
|
|
|
|
if (exp_type_id == OBJ_BLOB) {
|
|
struct object_id blob_oid;
|
|
if (oid_object_info(the_repository, &oid, NULL) == OBJ_TAG) {
|
|
char *buffer = read_object_file(&oid, &type,
|
|
&size);
|
|
const char *target;
|
|
if (!skip_prefix(buffer, "object ", &target) ||
|
|
get_oid_hex(target, &blob_oid))
|
|
die("%s not a valid tag", oid_to_hex(&oid));
|
|
free(buffer);
|
|
} else
|
|
oidcpy(&blob_oid, &oid);
|
|
|
|
if (oid_object_info(the_repository, &blob_oid, NULL) == OBJ_BLOB) {
|
|
ret = stream_blob(&blob_oid);
|
|
goto cleanup;
|
|
}
|
|
/*
|
|
* we attempted to dereference a tag to a blob
|
|
* and failed; there may be new dereference
|
|
* mechanisms this code is not aware of.
|
|
* fall-back to the usual case.
|
|
*/
|
|
}
|
|
buf = read_object_with_reference(the_repository, &oid,
|
|
exp_type_id, &size, NULL);
|
|
|
|
if (use_mailmap) {
|
|
size_t s = size;
|
|
buf = replace_idents_using_mailmap(buf, &s);
|
|
size = cast_size_t_to_ulong(s);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
die("git cat-file: unknown option: %s", exp_type);
|
|
}
|
|
|
|
if (!buf)
|
|
die("git cat-file %s: bad file", obj_name);
|
|
|
|
write_or_die(1, buf, size);
|
|
ret = 0;
|
|
cleanup:
|
|
free(buf);
|
|
free(obj_context.path);
|
|
return ret;
|
|
}
|
|
|
|
struct expand_data {
|
|
struct object_id oid;
|
|
enum object_type type;
|
|
unsigned long size;
|
|
off_t disk_size;
|
|
const char *rest;
|
|
struct object_id delta_base_oid;
|
|
|
|
/*
|
|
* If mark_query is true, we do not expand anything, but rather
|
|
* just mark the object_info with items we wish to query.
|
|
*/
|
|
int mark_query;
|
|
|
|
/*
|
|
* Whether to split the input on whitespace before feeding it to
|
|
* get_sha1; this is decided during the mark_query phase based on
|
|
* whether we have a %(rest) token in our format.
|
|
*/
|
|
int split_on_whitespace;
|
|
|
|
/*
|
|
* After a mark_query run, this object_info is set up to be
|
|
* passed to oid_object_info_extended. It will point to the data
|
|
* elements above, so you can retrieve the response from there.
|
|
*/
|
|
struct object_info info;
|
|
|
|
/*
|
|
* This flag will be true if the requested batch format and options
|
|
* don't require us to call oid_object_info, which can then be
|
|
* optimized out.
|
|
*/
|
|
unsigned skip_object_info : 1;
|
|
};
|
|
|
|
static int is_atom(const char *atom, const char *s, int slen)
|
|
{
|
|
int alen = strlen(atom);
|
|
return alen == slen && !memcmp(atom, s, alen);
|
|
}
|
|
|
|
static void expand_atom(struct strbuf *sb, const char *atom, int len,
|
|
void *vdata)
|
|
{
|
|
struct expand_data *data = vdata;
|
|
|
|
if (is_atom("objectname", atom, len)) {
|
|
if (!data->mark_query)
|
|
strbuf_addstr(sb, oid_to_hex(&data->oid));
|
|
} else if (is_atom("objecttype", atom, len)) {
|
|
if (data->mark_query)
|
|
data->info.typep = &data->type;
|
|
else
|
|
strbuf_addstr(sb, type_name(data->type));
|
|
} else if (is_atom("objectsize", atom, len)) {
|
|
if (data->mark_query)
|
|
data->info.sizep = &data->size;
|
|
else
|
|
strbuf_addf(sb, "%"PRIuMAX , (uintmax_t)data->size);
|
|
} else if (is_atom("objectsize:disk", atom, len)) {
|
|
if (data->mark_query)
|
|
data->info.disk_sizep = &data->disk_size;
|
|
else
|
|
strbuf_addf(sb, "%"PRIuMAX, (uintmax_t)data->disk_size);
|
|
} else if (is_atom("rest", atom, len)) {
|
|
if (data->mark_query)
|
|
data->split_on_whitespace = 1;
|
|
else if (data->rest)
|
|
strbuf_addstr(sb, data->rest);
|
|
} else if (is_atom("deltabase", atom, len)) {
|
|
if (data->mark_query)
|
|
data->info.delta_base_oid = &data->delta_base_oid;
|
|
else
|
|
strbuf_addstr(sb,
|
|
oid_to_hex(&data->delta_base_oid));
|
|
} else
|
|
die("unknown format element: %.*s", len, atom);
|
|
}
|
|
|
|
static size_t expand_format(struct strbuf *sb, const char *start, void *data)
|
|
{
|
|
const char *end;
|
|
|
|
if (*start != '(')
|
|
return 0;
|
|
end = strchr(start + 1, ')');
|
|
if (!end)
|
|
die("format element '%s' does not end in ')'", start);
|
|
|
|
expand_atom(sb, start + 1, end - start - 1, data);
|
|
|
|
return end - start + 1;
|
|
}
|
|
|
|
static void batch_write(struct batch_options *opt, const void *data, int len)
|
|
{
|
|
if (opt->buffer_output) {
|
|
if (fwrite(data, 1, len, stdout) != len)
|
|
die_errno("unable to write to stdout");
|
|
} else
|
|
write_or_die(1, data, len);
|
|
}
|
|
|
|
static void print_object_or_die(struct batch_options *opt, struct expand_data *data)
|
|
{
|
|
const struct object_id *oid = &data->oid;
|
|
|
|
assert(data->info.typep);
|
|
|
|
if (data->type == OBJ_BLOB) {
|
|
if (opt->buffer_output)
|
|
fflush(stdout);
|
|
if (opt->transform_mode) {
|
|
char *contents;
|
|
unsigned long size;
|
|
|
|
if (!data->rest)
|
|
die("missing path for '%s'", oid_to_hex(oid));
|
|
|
|
if (opt->transform_mode == 'w') {
|
|
if (filter_object(data->rest, 0100644, oid,
|
|
&contents, &size))
|
|
die("could not convert '%s' %s",
|
|
oid_to_hex(oid), data->rest);
|
|
} else if (opt->transform_mode == 'c') {
|
|
enum object_type type;
|
|
if (!textconv_object(the_repository,
|
|
data->rest, 0100644, oid,
|
|
1, &contents, &size))
|
|
contents = read_object_file(oid,
|
|
&type,
|
|
&size);
|
|
if (!contents)
|
|
die("could not convert '%s' %s",
|
|
oid_to_hex(oid), data->rest);
|
|
} else
|
|
BUG("invalid transform_mode: %c", opt->transform_mode);
|
|
batch_write(opt, contents, size);
|
|
free(contents);
|
|
} else {
|
|
stream_blob(oid);
|
|
}
|
|
}
|
|
else {
|
|
enum object_type type;
|
|
unsigned long size;
|
|
void *contents;
|
|
|
|
contents = read_object_file(oid, &type, &size);
|
|
|
|
if (use_mailmap) {
|
|
size_t s = size;
|
|
contents = replace_idents_using_mailmap(contents, &s);
|
|
size = cast_size_t_to_ulong(s);
|
|
}
|
|
|
|
if (!contents)
|
|
die("object %s disappeared", oid_to_hex(oid));
|
|
if (type != data->type)
|
|
die("object %s changed type!?", oid_to_hex(oid));
|
|
if (data->info.sizep && size != data->size && !use_mailmap)
|
|
die("object %s changed size!?", oid_to_hex(oid));
|
|
|
|
batch_write(opt, contents, size);
|
|
free(contents);
|
|
}
|
|
}
|
|
|
|
static void print_default_format(struct strbuf *scratch, struct expand_data *data)
|
|
{
|
|
strbuf_addf(scratch, "%s %s %"PRIuMAX"\n", oid_to_hex(&data->oid),
|
|
type_name(data->type),
|
|
(uintmax_t)data->size);
|
|
}
|
|
|
|
/*
|
|
* If "pack" is non-NULL, then "offset" is the byte offset within the pack from
|
|
* which the object may be accessed (though note that we may also rely on
|
|
* data->oid, too). If "pack" is NULL, then offset is ignored.
|
|
*/
|
|
static void batch_object_write(const char *obj_name,
|
|
struct strbuf *scratch,
|
|
struct batch_options *opt,
|
|
struct expand_data *data,
|
|
struct packed_git *pack,
|
|
off_t offset)
|
|
{
|
|
if (!data->skip_object_info) {
|
|
int ret;
|
|
|
|
if (use_mailmap)
|
|
data->info.typep = &data->type;
|
|
|
|
if (pack)
|
|
ret = packed_object_info(the_repository, pack, offset,
|
|
&data->info);
|
|
else
|
|
ret = oid_object_info_extended(the_repository,
|
|
&data->oid, &data->info,
|
|
OBJECT_INFO_LOOKUP_REPLACE);
|
|
if (ret < 0) {
|
|
printf("%s missing\n",
|
|
obj_name ? obj_name : oid_to_hex(&data->oid));
|
|
fflush(stdout);
|
|
return;
|
|
}
|
|
|
|
if (use_mailmap && (data->type == OBJ_COMMIT || data->type == OBJ_TAG)) {
|
|
size_t s = data->size;
|
|
char *buf = NULL;
|
|
|
|
buf = repo_read_object_file(the_repository, &data->oid, &data->type,
|
|
&data->size);
|
|
buf = replace_idents_using_mailmap(buf, &s);
|
|
data->size = cast_size_t_to_ulong(s);
|
|
|
|
free(buf);
|
|
}
|
|
}
|
|
|
|
strbuf_reset(scratch);
|
|
|
|
if (!opt->format) {
|
|
print_default_format(scratch, data);
|
|
} else {
|
|
strbuf_expand(scratch, opt->format, expand_format, data);
|
|
strbuf_addch(scratch, '\n');
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
static void batch_one_object(const char *obj_name,
|
|
struct strbuf *scratch,
|
|
struct batch_options *opt,
|
|
struct expand_data *data)
|
|
{
|
|
struct object_context ctx;
|
|
int flags = opt->follow_symlinks ? GET_OID_FOLLOW_SYMLINKS : 0;
|
|
enum get_oid_result result;
|
|
|
|
result = get_oid_with_context(the_repository, obj_name,
|
|
flags, &data->oid, &ctx);
|
|
if (result != FOUND) {
|
|
switch (result) {
|
|
case MISSING_OBJECT:
|
|
printf("%s missing\n", obj_name);
|
|
break;
|
|
case SHORT_NAME_AMBIGUOUS:
|
|
printf("%s ambiguous\n", obj_name);
|
|
break;
|
|
case DANGLING_SYMLINK:
|
|
printf("dangling %"PRIuMAX"\n%s\n",
|
|
(uintmax_t)strlen(obj_name), obj_name);
|
|
break;
|
|
case SYMLINK_LOOP:
|
|
printf("loop %"PRIuMAX"\n%s\n",
|
|
(uintmax_t)strlen(obj_name), obj_name);
|
|
break;
|
|
case NOT_DIR:
|
|
printf("notdir %"PRIuMAX"\n%s\n",
|
|
(uintmax_t)strlen(obj_name), obj_name);
|
|
break;
|
|
default:
|
|
BUG("unknown get_sha1_with_context result %d\n",
|
|
result);
|
|
break;
|
|
}
|
|
fflush(stdout);
|
|
return;
|
|
}
|
|
|
|
if (ctx.mode == 0) {
|
|
printf("symlink %"PRIuMAX"\n%s\n",
|
|
(uintmax_t)ctx.symlink_path.len,
|
|
ctx.symlink_path.buf);
|
|
fflush(stdout);
|
|
return;
|
|
}
|
|
|
|
batch_object_write(obj_name, scratch, opt, data, NULL, 0);
|
|
}
|
|
|
|
struct object_cb_data {
|
|
struct batch_options *opt;
|
|
struct expand_data *expand;
|
|
struct oidset *seen;
|
|
struct strbuf *scratch;
|
|
};
|
|
|
|
static int batch_object_cb(const struct object_id *oid, void *vdata)
|
|
{
|
|
struct object_cb_data *data = vdata;
|
|
oidcpy(&data->expand->oid, oid);
|
|
batch_object_write(NULL, data->scratch, data->opt, data->expand,
|
|
NULL, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int collect_loose_object(const struct object_id *oid,
|
|
const char *path UNUSED,
|
|
void *data)
|
|
{
|
|
oid_array_append(data, oid);
|
|
return 0;
|
|
}
|
|
|
|
static int collect_packed_object(const struct object_id *oid,
|
|
struct packed_git *pack UNUSED,
|
|
uint32_t pos UNUSED,
|
|
void *data)
|
|
{
|
|
oid_array_append(data, oid);
|
|
return 0;
|
|
}
|
|
|
|
static int batch_unordered_object(const struct object_id *oid,
|
|
struct packed_git *pack, off_t offset,
|
|
void *vdata)
|
|
{
|
|
struct object_cb_data *data = vdata;
|
|
|
|
if (oidset_insert(data->seen, oid))
|
|
return 0;
|
|
|
|
oidcpy(&data->expand->oid, oid);
|
|
batch_object_write(NULL, data->scratch, data->opt, data->expand,
|
|
pack, offset);
|
|
return 0;
|
|
}
|
|
|
|
static int batch_unordered_loose(const struct object_id *oid,
|
|
const char *path UNUSED,
|
|
void *data)
|
|
{
|
|
return batch_unordered_object(oid, NULL, 0, data);
|
|
}
|
|
|
|
static int batch_unordered_packed(const struct object_id *oid,
|
|
struct packed_git *pack,
|
|
uint32_t pos,
|
|
void *data)
|
|
{
|
|
return batch_unordered_object(oid, pack,
|
|
nth_packed_object_offset(pack, pos),
|
|
data);
|
|
}
|
|
|
|
typedef void (*parse_cmd_fn_t)(struct batch_options *, const char *,
|
|
struct strbuf *, struct expand_data *);
|
|
|
|
struct queued_cmd {
|
|
parse_cmd_fn_t fn;
|
|
char *line;
|
|
};
|
|
|
|
static void parse_cmd_contents(struct batch_options *opt,
|
|
const char *line,
|
|
struct strbuf *output,
|
|
struct expand_data *data)
|
|
{
|
|
opt->batch_mode = BATCH_MODE_CONTENTS;
|
|
batch_one_object(line, output, opt, data);
|
|
}
|
|
|
|
static void parse_cmd_info(struct batch_options *opt,
|
|
const char *line,
|
|
struct strbuf *output,
|
|
struct expand_data *data)
|
|
{
|
|
opt->batch_mode = BATCH_MODE_INFO;
|
|
batch_one_object(line, output, opt, data);
|
|
}
|
|
|
|
static void dispatch_calls(struct batch_options *opt,
|
|
struct strbuf *output,
|
|
struct expand_data *data,
|
|
struct queued_cmd *cmd,
|
|
int nr)
|
|
{
|
|
int i;
|
|
|
|
if (!opt->buffer_output)
|
|
die(_("flush is only for --buffer mode"));
|
|
|
|
for (i = 0; i < nr; i++)
|
|
cmd[i].fn(opt, cmd[i].line, output, data);
|
|
|
|
fflush(stdout);
|
|
}
|
|
|
|
static void free_cmds(struct queued_cmd *cmd, size_t *nr)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < *nr; i++)
|
|
FREE_AND_NULL(cmd[i].line);
|
|
|
|
*nr = 0;
|
|
}
|
|
|
|
|
|
static const struct parse_cmd {
|
|
const char *name;
|
|
parse_cmd_fn_t fn;
|
|
unsigned takes_args;
|
|
} commands[] = {
|
|
{ "contents", parse_cmd_contents, 1},
|
|
{ "info", parse_cmd_info, 1},
|
|
{ "flush", NULL, 0},
|
|
};
|
|
|
|
static void batch_objects_command(struct batch_options *opt,
|
|
struct strbuf *output,
|
|
struct expand_data *data)
|
|
{
|
|
struct strbuf input = STRBUF_INIT;
|
|
struct queued_cmd *queued_cmd = NULL;
|
|
size_t alloc = 0, nr = 0;
|
|
|
|
while (1) {
|
|
int i, ret;
|
|
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))
|
|
die(_("whitespace before command: '%s'"), input.buf);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(commands); i++) {
|
|
if (!skip_prefix(input.buf, commands[i].name, &cmd_end))
|
|
continue;
|
|
|
|
cmd = &commands[i];
|
|
if (cmd->takes_args) {
|
|
if (*cmd_end != ' ')
|
|
die(_("%s requires arguments"),
|
|
commands[i].name);
|
|
|
|
p = cmd_end + 1;
|
|
} else if (*cmd_end) {
|
|
die(_("%s takes no arguments"),
|
|
commands[i].name);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (!cmd)
|
|
die(_("unknown command: '%s'"), input.buf);
|
|
|
|
if (!strcmp(cmd->name, "flush")) {
|
|
dispatch_calls(opt, output, data, queued_cmd, nr);
|
|
free_cmds(queued_cmd, &nr);
|
|
} else if (!opt->buffer_output) {
|
|
cmd->fn(opt, p, output, data);
|
|
} else {
|
|
ALLOC_GROW(queued_cmd, nr + 1, alloc);
|
|
call.fn = cmd->fn;
|
|
call.line = xstrdup_or_null(p);
|
|
queued_cmd[nr++] = call;
|
|
}
|
|
}
|
|
|
|
if (opt->buffer_output &&
|
|
nr &&
|
|
!git_env_bool("GIT_TEST_CAT_FILE_NO_FLUSH_ON_EXIT", 0)) {
|
|
dispatch_calls(opt, output, data, queued_cmd, nr);
|
|
free_cmds(queued_cmd, &nr);
|
|
}
|
|
|
|
free_cmds(queued_cmd, &nr);
|
|
free(queued_cmd);
|
|
strbuf_release(&input);
|
|
}
|
|
|
|
#define DEFAULT_FORMAT "%(objectname) %(objecttype) %(objectsize)"
|
|
|
|
static int batch_objects(struct batch_options *opt)
|
|
{
|
|
struct strbuf input = STRBUF_INIT;
|
|
struct strbuf output = STRBUF_INIT;
|
|
struct expand_data data;
|
|
int save_warning;
|
|
int retval = 0;
|
|
|
|
/*
|
|
* Expand once with our special mark_query flag, which will prime the
|
|
* object_info to be handed to oid_object_info_extended for each
|
|
* object.
|
|
*/
|
|
memset(&data, 0, sizeof(data));
|
|
data.mark_query = 1;
|
|
strbuf_expand(&output,
|
|
opt->format ? opt->format : DEFAULT_FORMAT,
|
|
expand_format,
|
|
&data);
|
|
data.mark_query = 0;
|
|
strbuf_release(&output);
|
|
if (opt->transform_mode)
|
|
data.split_on_whitespace = 1;
|
|
|
|
if (opt->format && !strcmp(opt->format, DEFAULT_FORMAT))
|
|
opt->format = NULL;
|
|
/*
|
|
* If we are printing out the object, then always fill in the type,
|
|
* since we will want to decide whether or not to stream.
|
|
*/
|
|
if (opt->batch_mode == BATCH_MODE_CONTENTS)
|
|
data.info.typep = &data.type;
|
|
|
|
if (opt->all_objects) {
|
|
struct object_cb_data cb;
|
|
struct object_info empty = OBJECT_INFO_INIT;
|
|
|
|
if (!memcmp(&data.info, &empty, sizeof(empty)))
|
|
data.skip_object_info = 1;
|
|
|
|
if (has_promisor_remote())
|
|
warning("This repository uses promisor remotes. Some objects may not be loaded.");
|
|
|
|
read_replace_refs = 0;
|
|
|
|
cb.opt = opt;
|
|
cb.expand = &data;
|
|
cb.scratch = &output;
|
|
|
|
if (opt->unordered) {
|
|
struct oidset seen = OIDSET_INIT;
|
|
|
|
cb.seen = &seen;
|
|
|
|
for_each_loose_object(batch_unordered_loose, &cb, 0);
|
|
for_each_packed_object(batch_unordered_packed, &cb,
|
|
FOR_EACH_OBJECT_PACK_ORDER);
|
|
|
|
oidset_clear(&seen);
|
|
} else {
|
|
struct oid_array sa = OID_ARRAY_INIT;
|
|
|
|
for_each_loose_object(collect_loose_object, &sa, 0);
|
|
for_each_packed_object(collect_packed_object, &sa, 0);
|
|
|
|
oid_array_for_each_unique(&sa, batch_object_cb, &cb);
|
|
|
|
oid_array_clear(&sa);
|
|
}
|
|
|
|
strbuf_release(&output);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* We are going to call get_sha1 on a potentially very large number of
|
|
* objects. In most large cases, these will be actual object sha1s. The
|
|
* cost to double-check that each one is not also a ref (just so we can
|
|
* warn) ends up dwarfing the actual cost of the object lookups
|
|
* themselves. We can work around it by just turning off the warning.
|
|
*/
|
|
save_warning = warn_on_object_refname_ambiguity;
|
|
warn_on_object_refname_ambiguity = 0;
|
|
|
|
if (opt->batch_mode == BATCH_MODE_QUEUE_AND_DISPATCH) {
|
|
batch_objects_command(opt, &output, &data);
|
|
goto cleanup;
|
|
}
|
|
|
|
while (1) {
|
|
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
|
|
* of the string and saving the remainder (or NULL) in
|
|
* data.rest.
|
|
*/
|
|
char *p = strpbrk(input.buf, " \t");
|
|
if (p) {
|
|
while (*p && strchr(" \t", *p))
|
|
*p++ = '\0';
|
|
}
|
|
data.rest = p;
|
|
}
|
|
|
|
batch_one_object(input.buf, &output, opt, &data);
|
|
}
|
|
|
|
cleanup:
|
|
strbuf_release(&input);
|
|
strbuf_release(&output);
|
|
warn_on_object_refname_ambiguity = save_warning;
|
|
return retval;
|
|
}
|
|
|
|
static int git_cat_file_config(const char *var, const char *value, void *cb)
|
|
{
|
|
if (userdiff_config(var, value) < 0)
|
|
return -1;
|
|
|
|
return git_default_config(var, value, cb);
|
|
}
|
|
|
|
static int batch_option_callback(const struct option *opt,
|
|
const char *arg,
|
|
int unset)
|
|
{
|
|
struct batch_options *bo = opt->value;
|
|
|
|
BUG_ON_OPT_NEG(unset);
|
|
|
|
if (bo->enabled) {
|
|
return error(_("only one batch option may be specified"));
|
|
}
|
|
|
|
bo->enabled = 1;
|
|
|
|
if (!strcmp(opt->long_name, "batch"))
|
|
bo->batch_mode = BATCH_MODE_CONTENTS;
|
|
else if (!strcmp(opt->long_name, "batch-check"))
|
|
bo->batch_mode = BATCH_MODE_INFO;
|
|
else if (!strcmp(opt->long_name, "batch-command"))
|
|
bo->batch_mode = BATCH_MODE_QUEUE_AND_DISPATCH;
|
|
else
|
|
BUG("%s given to batch-option-callback", opt->long_name);
|
|
|
|
bo->format = arg;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cmd_cat_file(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int opt = 0;
|
|
int opt_cw = 0;
|
|
int opt_epts = 0;
|
|
const char *exp_type = NULL, *obj_name = NULL;
|
|
struct batch_options batch = {0};
|
|
int unknown_type = 0;
|
|
|
|
const char * const usage[] = {
|
|
N_("git cat-file <type> <object>"),
|
|
N_("git cat-file (-e | -p) <object>"),
|
|
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]"),
|
|
N_("git cat-file (--textconv | --filters)\n"
|
|
" [<rev>:<path|tree-ish> | --path=<path|tree-ish> <rev>]"),
|
|
NULL
|
|
};
|
|
const struct option options[] = {
|
|
/* Simple queries */
|
|
OPT_GROUP(N_("Check object existence or emit object contents")),
|
|
OPT_CMDMODE('e', NULL, &opt,
|
|
N_("check if <object> exists"), 'e'),
|
|
OPT_CMDMODE('p', NULL, &opt, N_("pretty-print <object> content"), 'p'),
|
|
|
|
OPT_GROUP(N_("Emit [broken] object attributes")),
|
|
OPT_CMDMODE('t', NULL, &opt, N_("show object type (one of 'blob', 'tree', 'commit', 'tag', ...)"), 't'),
|
|
OPT_CMDMODE('s', NULL, &opt, N_("show object size"), 's'),
|
|
OPT_BOOL(0, "allow-unknown-type", &unknown_type,
|
|
N_("allow -s and -t to work with broken/corrupt objects")),
|
|
OPT_BOOL(0, "use-mailmap", &use_mailmap, N_("use mail map file")),
|
|
OPT_ALIAS(0, "mailmap", "use-mailmap"),
|
|
/* Batch mode */
|
|
OPT_GROUP(N_("Batch objects requested on stdin (or --batch-all-objects)")),
|
|
OPT_CALLBACK_F(0, "batch", &batch, N_("format"),
|
|
N_("show full <object> or <rev> contents"),
|
|
PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
|
|
batch_option_callback),
|
|
OPT_CALLBACK_F(0, "batch-check", &batch, N_("format"),
|
|
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_CALLBACK_F(0, "batch-command", &batch, N_("format"),
|
|
N_("read commands from stdin"),
|
|
PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
|
|
batch_option_callback),
|
|
OPT_CMDMODE(0, "batch-all-objects", &opt,
|
|
N_("with --batch[-check]: ignores stdin, batches all known objects"), 'b'),
|
|
/* Batch-specific options */
|
|
OPT_GROUP(N_("Change or optimize batch output")),
|
|
OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")),
|
|
OPT_BOOL(0, "follow-symlinks", &batch.follow_symlinks,
|
|
N_("follow in-tree symlinks")),
|
|
OPT_BOOL(0, "unordered", &batch.unordered,
|
|
N_("do not order objects before emitting them")),
|
|
/* Textconv options, stand-ole*/
|
|
OPT_GROUP(N_("Emit object (blob or tree) with conversion or filter (stand-alone, or with batch)")),
|
|
OPT_CMDMODE(0, "textconv", &opt,
|
|
N_("run textconv on object's content"), 'c'),
|
|
OPT_CMDMODE(0, "filters", &opt,
|
|
N_("run filters on object's content"), 'w'),
|
|
OPT_STRING(0, "path", &force_path, N_("blob|tree"),
|
|
N_("use a <path> for (--textconv | --filters); Not with 'batch'")),
|
|
OPT_END()
|
|
};
|
|
|
|
git_config(git_cat_file_config, NULL);
|
|
|
|
batch.buffer_output = -1;
|
|
|
|
argc = parse_options(argc, argv, prefix, options, usage, 0);
|
|
opt_cw = (opt == 'c' || opt == 'w');
|
|
opt_epts = (opt == 'e' || opt == 'p' || opt == 't' || opt == 's');
|
|
|
|
if (use_mailmap)
|
|
read_mailmap(&mailmap);
|
|
|
|
/* --batch-all-objects? */
|
|
if (opt == 'b')
|
|
batch.all_objects = 1;
|
|
|
|
/* Option compatibility */
|
|
if (force_path && !opt_cw)
|
|
usage_msg_optf(_("'%s=<%s>' needs '%s' or '%s'"),
|
|
usage, options,
|
|
"--path", _("path|tree-ish"), "--filters",
|
|
"--textconv");
|
|
|
|
/* Option compatibility with batch mode */
|
|
if (batch.enabled)
|
|
;
|
|
else if (batch.follow_symlinks)
|
|
usage_msg_optf(_("'%s' requires a batch mode"), usage, options,
|
|
"--follow-symlinks");
|
|
else if (batch.buffer_output >= 0)
|
|
usage_msg_optf(_("'%s' requires a batch mode"), usage, options,
|
|
"--buffer");
|
|
else if (batch.all_objects)
|
|
usage_msg_optf(_("'%s' requires a batch mode"), usage, options,
|
|
"--batch-all-objects");
|
|
else if (batch.nul_terminated)
|
|
usage_msg_optf(_("'%s' requires a batch mode"), usage, options,
|
|
"-z");
|
|
|
|
/* Batch defaults */
|
|
if (batch.buffer_output < 0)
|
|
batch.buffer_output = batch.all_objects;
|
|
|
|
/* Return early if we're in batch mode? */
|
|
if (batch.enabled) {
|
|
if (opt_cw)
|
|
batch.transform_mode = opt;
|
|
else if (opt && opt != 'b')
|
|
usage_msg_optf(_("'-%c' is incompatible with batch mode"),
|
|
usage, options, opt);
|
|
else if (argc)
|
|
usage_msg_opt(_("batch modes take no arguments"), usage,
|
|
options);
|
|
|
|
return batch_objects(&batch);
|
|
}
|
|
|
|
if (opt) {
|
|
if (!argc && opt == 'c')
|
|
usage_msg_optf(_("<rev> required with '%s'"),
|
|
usage, options, "--textconv");
|
|
else if (!argc && opt == 'w')
|
|
usage_msg_optf(_("<rev> required with '%s'"),
|
|
usage, options, "--filters");
|
|
else if (!argc && opt_epts)
|
|
usage_msg_optf(_("<object> required with '-%c'"),
|
|
usage, options, opt);
|
|
else if (argc == 1)
|
|
obj_name = argv[0];
|
|
else
|
|
usage_msg_opt(_("too many arguments"), usage, options);
|
|
} else if (!argc) {
|
|
usage_with_options(usage, options);
|
|
} else if (argc != 2) {
|
|
usage_msg_optf(_("only two arguments allowed in <type> <object> mode, not %d"),
|
|
usage, options, argc);
|
|
} else if (argc) {
|
|
exp_type = argv[0];
|
|
obj_name = argv[1];
|
|
}
|
|
|
|
if (unknown_type && opt != 't' && opt != 's')
|
|
die("git cat-file --allow-unknown-type: use with -s or -t");
|
|
return cat_one_file(opt, exp_type, obj_name, unknown_type);
|
|
}
|