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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup blenloader
*
* Utils to check/validate a Main is in sane state,
* only checks relations between data-blocks and libraries for now.
*
* \note Does not *fix* anything, only reports found errors.
*/
#include <string.h> /* for #strrchr #strncmp #strstr */
#include "BLI_utildefines.h"
#include "BLI_blenlib.h"
#include "BLI_linklist.h"
#include "MEM_guardedalloc.h"
#include "DNA_key_types.h"
#include "DNA_sdna_types.h"
#include "DNA_windowmanager_types.h"
#include "BKE_key.h"
#include "BKE_lib_id.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_report.h"
#include "BLO_blend_validate.h"
#include "BLO_readfile.h"
#include "readfile.h"
bool BLO_main_validate_libraries(Main *bmain, ReportList *reports)
{
ListBase mainlist;
bool is_valid = true;
BKE_main_lock(bmain);
blo_split_main(&mainlist, bmain);
ListBase *lbarray[INDEX_ID_MAX];
int i = set_listbasepointers(bmain, lbarray);
while (i--) {
for (ID *id = static_cast<ID *>(lbarray[i]->first); id != nullptr;
id = static_cast<ID *>(id->next)) {
if (ID_IS_LINKED(id)) {
is_valid = false;
BKE_reportf(reports,
RPT_ERROR,
"ID %s is in local database while being linked from library %s!",
id->name,
id->lib->filepath);
}
}
}
for (Main *curmain = bmain->next; curmain != nullptr; curmain = curmain->next) {
Library *curlib = curmain->curlib;
if (curlib == nullptr) {
BKE_report(reports, RPT_ERROR, "Library database with nullptr library data-block!");
continue;
}
BKE_library_filepath_set(bmain, curlib, curlib->filepath);
BlendFileReadReport bf_reports{};
bf_reports.reports = reports;
BlendHandle *bh = BLO_blendhandle_from_file(curlib->filepath_abs, &bf_reports);
if (bh == nullptr) {
BKE_reportf(reports,
RPT_ERROR,
"Library ID %s not found at expected path %s!",
curlib->id.name,
curlib->filepath_abs);
continue;
}
i = set_listbasepointers(curmain, lbarray);
while (i--) {
ID *id = static_cast<ID *>(lbarray[i]->first);
if (id == nullptr) {
continue;
}
if (GS(id->name) == ID_LI) {
is_valid = false;
BKE_reportf(reports,
RPT_ERROR,
"Library ID %s in library %s, this should not happen!",
id->name,
curlib->filepath);
continue;
}
int totnames = 0;
LinkNode *names = BLO_blendhandle_get_datablock_names(bh, GS(id->name), false, &totnames);
for (; id != nullptr; id = static_cast<ID *>(id->next)) {
if (!ID_IS_LINKED(id)) {
is_valid = false;
BKE_reportf(reports,
RPT_ERROR,
"ID %s has nullptr lib pointer while being in library %s!",
id->name,
curlib->filepath);
continue;
}
if (id->lib != curlib) {
is_valid = false;
BKE_reportf(reports, RPT_ERROR, "ID %s has mismatched lib pointer!", id->name);
continue;
}
LinkNode *name = names;
for (; name; name = name->next) {
char *str_name = (char *)name->link;
if (id->name[2] == str_name[0] && STREQ(str_name, id->name + 2)) {
break;
}
}
if (name == nullptr) {
is_valid = false;
BKE_reportf(reports,
RPT_ERROR,
"ID %s not found in library %s anymore!",
id->name,
id->lib->filepath);
continue;
}
}
BLI_linklist_freeN(names);
}
BLO_blendhandle_close(bh);
}
blo_join_main(&mainlist);
BLI_assert(BLI_listbase_is_single(&mainlist));
BLI_assert(mainlist.first == (void *)bmain);
BKE_main_unlock(bmain);
return is_valid;
}
bool BLO_main_validate_shapekeys(Main *bmain, ReportList *reports)
{
ListBase *lb;
ID *id;
bool is_valid = true;
BKE_main_lock(bmain);
FOREACH_MAIN_LISTBASE_BEGIN (bmain, lb) {
FOREACH_MAIN_LISTBASE_ID_BEGIN (lb, id) {
if (!BKE_key_idtype_support(GS(id->name))) {
break;
}
if (!ID_IS_LINKED(id)) {
/* We assume lib data is valid... */
Key *shapekey = BKE_key_from_id(id);
if (shapekey != nullptr && shapekey->from != id) {
is_valid = false;
BKE_reportf(reports,
RPT_ERROR,
"ID %s uses shapekey %s, but its 'from' pointer is invalid (%p), fixing...",
id->name,
shapekey->id.name,
shapekey->from);
shapekey->from = id;
}
}
}
FOREACH_MAIN_LISTBASE_ID_END;
}
FOREACH_MAIN_LISTBASE_END;
BKE_main_unlock(bmain);
/* NOTE: #BKE_id_delete also locks `bmain`, so we need to do this loop outside of the lock here.
*/
LISTBASE_FOREACH_MUTABLE (Key *, shapekey, &bmain->shapekeys) {
if (shapekey->from != nullptr) {
continue;
}
BKE_reportf(reports,
RPT_ERROR,
"Shapekey %s has an invalid 'from' pointer (%p), it will be deleted",
shapekey->id.name,
shapekey->from);
BKE_id_delete(bmain, shapekey);
}
return is_valid;
}
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