static int show_reference(const char *refname, const struct object_id *oid,
int flag, void *cb_data)
{
struct show_data *data = cb_data;
if (!wildmatch(data->pattern, refname, 0)) {
if (data->format == REPLACE_FORMAT_SHORT)
printf("%s\n", refname);
else if (data->format == REPLACE_FORMAT_MEDIUM)
printf("%s -> %s\n", refname, oid_to_hex(oid));
else { /* data->format == REPLACE_FORMAT_LONG */
struct object_id object;
enum object_type obj_type, repl_type;
if (get_oid(refname, &object))
return error("Failed to resolve '%s' as a valid ref.", refname);
obj_type = oid_object_info(the_repository, &object,
NULL);
repl_type = oid_object_info(the_repository, oid, NULL);
printf("%s (%s) -> %s (%s)\n", refname, type_name(obj_type),
oid_to_hex(oid), type_name(repl_type));
}
}
return 0;
}
int gpg_verify_tag(const struct object_id *oid, const char *name_to_report,
unsigned flags)
{
enum object_type type;
char *buf;
unsigned long size;
int ret;
type = oid_object_info(the_repository, oid, NULL);
if (type != OBJ_TAG)
return error("%s: cannot verify a non-tag object of type %s.",
name_to_report ?
name_to_report :
find_unique_abbrev(oid, DEFAULT_ABBREV),
type_name(type));
buf = read_object_file(oid, &type, &size);
if (!buf)
return error("%s: unable to read file.",
name_to_report ?
name_to_report :
find_unique_abbrev(oid, DEFAULT_ABBREV));
ret = run_gpg_verify(buf, size, flags);
free(buf);
return ret;
}
static int prune_object(const struct object_id *oid, const char *fullpath,
void *data)
{
struct stat st;
/*
* Do we know about this object?
* It must have been reachable
*/
if (lookup_object(oid->hash))
return 0;
if (lstat(fullpath, &st)) {
/* report errors, but do not stop pruning */
error("Could not stat '%s'", fullpath);
return 0;
}
if (st.st_mtime > expire)
return 0;
if (show_only || verbose) {
enum object_type type = oid_object_info(the_repository, oid,
NULL);
printf("%s %s\n", oid_to_hex(oid),
(type > 0) ? type_name(type) : "unknown");
}
if (!show_only)
unlink_or_warn(fullpath);
return 0;
}
static int show_tree(const struct object_id *oid, struct strbuf *base,
const char *pathname, unsigned mode, int stage, void *context)
{
int retval = 0;
int baselen;
const char *type = blob_type;
if (S_ISGITLINK(mode)) {
/*
* Maybe we want to have some recursive version here?
*
* Something similar to this incomplete example:
*
if (show_subprojects(base, baselen, pathname))
retval = READ_TREE_RECURSIVE;
*
*/
type = commit_type;
} else if (S_ISDIR(mode)) {
if (show_recursive(base->buf, base->len, pathname)) {
retval = READ_TREE_RECURSIVE;
if (!(ls_options & LS_SHOW_TREES))
return retval;
}
type = tree_type;
}
else if (ls_options & LS_TREE_ONLY)
return 0;
if (!(ls_options & LS_NAME_ONLY)) {
if (ls_options & LS_SHOW_SIZE) {
char size_text[24];
if (!strcmp(type, blob_type)) {
unsigned long size;
if (oid_object_info(oid, &size) == OBJ_BAD)
xsnprintf(size_text, sizeof(size_text),
"BAD");
else
xsnprintf(size_text, sizeof(size_text),
"%lu", size);
} else
xsnprintf(size_text, sizeof(size_text), "-");
printf("%06o %s %s %7s\t", mode, type,
find_unique_abbrev(oid, abbrev),
size_text);
} else
printf("%06o %s %s\t", mode, type,
find_unique_abbrev(oid, abbrev));
}
baselen = base->len;
strbuf_addstr(base, pathname);
write_name_quoted_relative(base->buf,
chomp_prefix ? ls_tree_prefix : NULL,
stdout, line_termination);
strbuf_setlen(base, baselen);
return retval;
}
/**
* Build the initial type index for the packfile
*/
void bitmap_writer_build_type_index(struct packing_data *to_pack,
struct pack_idx_entry **index,
uint32_t index_nr)
{
uint32_t i;
writer.commits = ewah_new();
writer.trees = ewah_new();
writer.blobs = ewah_new();
writer.tags = ewah_new();
ALLOC_ARRAY(to_pack->in_pack_pos, to_pack->nr_objects);
for (i = 0; i < index_nr; ++i) {
struct object_entry *entry = (struct object_entry *)index[i];
enum object_type real_type;
oe_set_in_pack_pos(to_pack, entry, i);
switch (oe_type(entry)) {
case OBJ_COMMIT:
case OBJ_TREE:
case OBJ_BLOB:
case OBJ_TAG:
real_type = oe_type(entry);
break;
default:
real_type = oid_object_info(to_pack->repo,
&entry->idx.oid, NULL);
break;
}
switch (real_type) {
case OBJ_COMMIT:
ewah_set(writer.commits, i);
break;
case OBJ_TREE:
ewah_set(writer.trees, i);
break;
case OBJ_BLOB:
ewah_set(writer.blobs, i);
break;
case OBJ_TAG:
ewah_set(writer.tags, i);
break;
default:
die("Missing type information for %s (%d/%d)",
oid_to_hex(&entry->idx.oid), real_type,
oe_type(entry));
}
}
}
static enum list_objects_filter_result filter_blobs_limit(
struct repository *r,
enum list_objects_filter_situation filter_situation,
struct object *obj,
const char *pathname,
const char *filename,
void *filter_data_)
{
struct filter_blobs_limit_data *filter_data = filter_data_;
unsigned long object_length;
enum object_type t;
switch (filter_situation) {
default:
BUG("unknown filter_situation: %d", filter_situation);
case LOFS_BEGIN_TREE:
assert(obj->type == OBJ_TREE);
/* always include all tree objects */
return LOFR_MARK_SEEN | LOFR_DO_SHOW;
case LOFS_END_TREE:
assert(obj->type == OBJ_TREE);
return LOFR_ZERO;
case LOFS_BLOB:
assert(obj->type == OBJ_BLOB);
assert((obj->flags & SEEN) == 0);
t = oid_object_info(r, &obj->oid, &object_length);
if (t != OBJ_BLOB) { /* probably OBJ_NONE */
/*
* We DO NOT have the blob locally, so we cannot
* apply the size filter criteria. Be conservative
* and force show it (and let the caller deal with
* the ambiguity).
*/
goto include_it;
}
if (object_length < filter_data->max_bytes)
goto include_it;
if (filter_data->omits)
oidset_insert(filter_data->omits, &obj->oid);
return LOFR_MARK_SEEN; /* but not LOFR_DO_SHOW (hard omit) */
}
include_it:
if (filter_data->omits)
oidset_remove(filter_data->omits, &obj->oid);
return LOFR_MARK_SEEN | LOFR_DO_SHOW;
}
static int replace_object_oid(const char *object_ref,
struct object_id *object,
const char *replace_ref,
struct object_id *repl,
int force)
{
struct object_id prev;
enum object_type obj_type, repl_type;
struct strbuf ref = STRBUF_INIT;
struct ref_transaction *transaction;
struct strbuf err = STRBUF_INIT;
int res = 0;
obj_type = oid_object_info(the_repository, object, NULL);
repl_type = oid_object_info(the_repository, repl, NULL);
if (!force && obj_type != repl_type)
return error("Objects must be of the same type.\n"
"'%s' points to a replaced object of type '%s'\n"
"while '%s' points to a replacement object of "
"type '%s'.",
object_ref, type_name(obj_type),
replace_ref, type_name(repl_type));
if (check_ref_valid(object, &prev, &ref, force)) {
strbuf_release(&ref);
return -1;
}
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, ref.buf, repl, &prev,
0, NULL, &err) ||
ref_transaction_commit(transaction, &err))
res = error("%s", err.buf);
ref_transaction_free(transaction);
strbuf_release(&ref);
return res;
}
/*
* Fill the blob_sha1 field of an origin if it hasn't, so that later
* call to fill_origin_blob() can use it to locate the data. blob_sha1
* for an origin is also used to pass the blame for the entire file to
* the parent to detect the case where a child's blob is identical to
* that of its parent's.
*
* This also fills origin->mode for corresponding tree path.
*/
static int fill_blob_sha1_and_mode(struct blame_origin *origin)
{
if (!is_null_oid(&origin->blob_oid))
return 0;
if (get_tree_entry(&origin->commit->object.oid, origin->path, &origin->blob_oid, &origin->mode))
goto error_out;
if (oid_object_info(the_repository, &origin->blob_oid, NULL) != OBJ_BLOB)
goto error_out;
return 0;
error_out:
oidclr(&origin->blob_oid);
origin->mode = S_IFINVALID;
return -1;
}
static const char *printable_type(struct object *obj)
{
const char *ret;
if (obj->type == OBJ_NONE) {
enum object_type type = oid_object_info(&obj->oid, NULL);
if (type > 0)
object_as_type(obj, type, 0);
}
ret = type_name(obj->type);
if (!ret)
ret = "unknown";
return ret;
}
static int edit_and_replace(const char *object_ref, int force, int raw)
{
char *tmpfile;
enum object_type type;
struct object_id old_oid, new_oid, prev;
struct strbuf ref = STRBUF_INIT;
if (get_oid(object_ref, &old_oid) < 0)
return error("Not a valid object name: '%s'", object_ref);
type = oid_object_info(the_repository, &old_oid, NULL);
if (type < 0)
return error("unable to get object type for %s",
oid_to_hex(&old_oid));
if (check_ref_valid(&old_oid, &prev, &ref, force)) {
strbuf_release(&ref);
return -1;
}
strbuf_release(&ref);
tmpfile = git_pathdup("REPLACE_EDITOBJ");
if (export_object(&old_oid, type, raw, tmpfile)) {
free(tmpfile);
return -1;
}
if (launch_editor(tmpfile, NULL, NULL) < 0) {
free(tmpfile);
return error("editing object file failed");
}
if (import_object(&new_oid, type, raw, tmpfile)) {
free(tmpfile);
return -1;
}
free(tmpfile);
if (!oidcmp(&old_oid, &new_oid))
return error("new object is the same as the old one: '%s'", oid_to_hex(&old_oid));
return replace_object_oid(object_ref, &old_oid, "replacement", &new_oid, force);
}
struct object *parse_object(const struct object_id *oid)
{
unsigned long size;
enum object_type type;
int eaten;
const struct object_id *repl = lookup_replace_object(the_repository, oid);
void *buffer;
struct object *obj;
obj = lookup_object(oid->hash);
if (obj && obj->parsed)
return obj;
if ((obj && obj->type == OBJ_BLOB && has_object_file(oid)) ||
(!obj && has_object_file(oid) &&
oid_object_info(the_repository, oid, NULL) == OBJ_BLOB)) {
if (check_object_signature(repl, NULL, 0, NULL) < 0) {
error("sha1 mismatch %s", oid_to_hex(oid));
return NULL;
}
parse_blob_buffer(lookup_blob(oid), NULL, 0);
return lookup_object(oid->hash);
}
buffer = read_object_file(oid, &type, &size);
if (buffer) {
if (check_object_signature(repl, buffer, size, type_name(type)) < 0) {
free(buffer);
error("sha1 mismatch %s", oid_to_hex(repl));
return NULL;
}
obj = parse_object_buffer(oid, type, size, buffer, &eaten);
if (!eaten)
free(buffer);
return obj;
}
return NULL;
}
static void verify_working_tree_path(struct commit *work_tree, const char *path)
{
struct commit_list *parents;
int pos;
for (parents = work_tree->parents; parents; parents = parents->next) {
const struct object_id *commit_oid = &parents->item->object.oid;
struct object_id blob_oid;
unsigned mode;
if (!get_tree_entry(commit_oid, path, &blob_oid, &mode) &&
oid_object_info(the_repository, &blob_oid, NULL) == OBJ_BLOB)
return;
}
pos = cache_name_pos(path, strlen(path));
if (pos >= 0)
; /* path is in the index */
else if (-1 - pos < active_nr &&
!strcmp(active_cache[-1 - pos]->name, path))
; /* path is in the index, unmerged */
else
die("no such path '%s' in HEAD", path);
}
static int write_tar_entry(struct archiver_args *args,
const struct object_id *oid,
const char *path, size_t pathlen,
unsigned int mode)
{
struct ustar_header header;
struct strbuf ext_header = STRBUF_INIT;
unsigned int old_mode = mode;
unsigned long size, size_in_header;
void *buffer;
int err = 0;
memset(&header, 0, sizeof(header));
if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
*header.typeflag = TYPEFLAG_DIR;
mode = (mode | 0777) & ~tar_umask;
} else if (S_ISLNK(mode)) {
*header.typeflag = TYPEFLAG_LNK;
mode |= 0777;
} else if (S_ISREG(mode)) {
*header.typeflag = TYPEFLAG_REG;
mode = (mode | ((mode & 0100) ? 0777 : 0666)) & ~tar_umask;
} else {
return error(_("unsupported file mode: 0%o (SHA1: %s)"),
mode, oid_to_hex(oid));
}
if (pathlen > sizeof(header.name)) {
size_t plen = get_path_prefix(path, pathlen,
sizeof(header.prefix));
size_t rest = pathlen - plen - 1;
if (plen > 0 && rest <= sizeof(header.name)) {
memcpy(header.prefix, path, plen);
memcpy(header.name, path + plen + 1, rest);
} else {
xsnprintf(header.name, sizeof(header.name), "%s.data",
oid_to_hex(oid));
strbuf_append_ext_header(&ext_header, "path",
path, pathlen);
}
} else
memcpy(header.name, path, pathlen);
if (S_ISREG(mode) && !args->convert &&
oid_object_info(args->repo, oid, &size) == OBJ_BLOB &&
size > big_file_threshold)
buffer = NULL;
else if (S_ISLNK(mode) || S_ISREG(mode)) {
enum object_type type;
buffer = object_file_to_archive(args, path, oid, old_mode, &type, &size);
if (!buffer)
return error(_("cannot read %s"), oid_to_hex(oid));
} else {
buffer = NULL;
size = 0;
}
if (S_ISLNK(mode)) {
if (size > sizeof(header.linkname)) {
xsnprintf(header.linkname, sizeof(header.linkname),
"see %s.paxheader", oid_to_hex(oid));
strbuf_append_ext_header(&ext_header, "linkpath",
buffer, size);
} else
memcpy(header.linkname, buffer, size);
}
size_in_header = size;
if (S_ISREG(mode) && size > USTAR_MAX_SIZE) {
size_in_header = 0;
strbuf_append_ext_header_uint(&ext_header, "size", size);
}
prepare_header(args, &header, mode, size_in_header);
if (ext_header.len > 0) {
write_extended_header(args, oid, ext_header.buf,
ext_header.len);
}
strbuf_release(&ext_header);
write_blocked(&header, sizeof(header));
if (S_ISREG(mode) && size > 0) {
if (buffer)
write_blocked(buffer, size);
else
err = stream_blocked(oid);
}
free(buffer);
return err;
}
int cgit_ref_path_exists(const char *path, const char *ref, int file_only)
{
struct object_id oid;
unsigned long size;
struct pathspec_item path_items = {
.match = xstrdup(path),
.len = strlen(path)
};
struct pathspec paths = {
.nr = 1,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match_path = path,
.matched_oid = &oid,
.found_path = 0,
.file_only = file_only
};
if (get_oid(ref, &oid))
goto done;
if (oid_object_info(the_repository, &oid, &size) != OBJ_COMMIT)
goto done;
read_tree_recursive(lookup_commit_reference(the_repository, &oid)->maybe_tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
done:
free(path_items.match);
return walk_tree_ctx.found_path;
}
int cgit_print_file(char *path, const char *head, int file_only)
{
struct object_id oid;
enum object_type type;
char *buf;
unsigned long size;
struct commit *commit;
struct pathspec_item path_items = {
.match = path,
.len = strlen(path)
};
struct pathspec paths = {
.nr = 1,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match_path = path,
.matched_oid = &oid,
.found_path = 0,
.file_only = file_only
};
if (get_oid(head, &oid))
return -1;
type = oid_object_info(the_repository, &oid, &size);
if (type == OBJ_COMMIT) {
commit = lookup_commit_reference(the_repository, &oid);
read_tree_recursive(commit->maybe_tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
if (!walk_tree_ctx.found_path)
return -1;
type = oid_object_info(the_repository, &oid, &size);
}
if (type == OBJ_BAD)
return -1;
buf = read_object_file(&oid, &type, &size);
if (!buf)
return -1;
buf[size] = '\0';
html_raw(buf, size);
free(buf);
return 0;
}
void cgit_print_blob(const char *hex, char *path, const char *head, int file_only)
{
struct object_id oid;
enum object_type type;
char *buf;
unsigned long size;
struct commit *commit;
struct pathspec_item path_items = {
.match = path,
.len = path ? strlen(path) : 0
};
struct pathspec paths = {
.nr = 1,
.items = &path_items
};
struct walk_tree_context walk_tree_ctx = {
.match_path = path,
.matched_oid = &oid,
.found_path = 0,
.file_only = file_only
};
if (hex) {
if (get_oid_hex(hex, &oid)) {
cgit_print_error_page(400, "Bad request",
"Bad hex value: %s", hex);
return;
}
} else {
if (get_oid(head, &oid)) {
cgit_print_error_page(404, "Not found",
"Bad ref: %s", head);
return;
}
}
type = oid_object_info(the_repository, &oid, &size);
if ((!hex) && type == OBJ_COMMIT && path) {
commit = lookup_commit_reference(the_repository, &oid);
read_tree_recursive(commit->maybe_tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
type = oid_object_info(the_repository, &oid, &size);
}
if (type == OBJ_BAD) {
cgit_print_error_page(404, "Not found",
"Bad object name: %s", hex);
return;
}
buf = read_object_file(&oid, &type, &size);
if (!buf) {
cgit_print_error_page(500, "Internal server error",
"Error reading object %s", hex);
return;
}
buf[size] = '\0';
if (buffer_is_binary(buf, size))
ctx.page.mimetype = "application/octet-stream";
else
ctx.page.mimetype = "text/plain";
ctx.page.filename = path;
html("X-Content-Type-Options: nosniff\n");
html("Content-Security-Policy: default-src 'none'\n");
cgit_print_http_headers();
html_raw(buf, size);
free(buf);
}
