WM linking code rework.

New code loops much less, does re-open & close .blend files for each data type,
and is much much more flexible - it is also ready for id-remap & co work being done in branches.

Main idea is to store libraries & datablocks to link in a dedicated struct, in a way
that avoids too much looping, and also allows to search for a single datablock in several libraries.

Here again, no change is expected in current behavior of link/append tool, please report
if anything goes different!
This commit is contained in:
Bastien Montagne 2015-10-12 15:20:51 +02:00
parent 2e8fcac15d
commit 591f4549c9
Notes: blender-bot 2023-02-14 07:53:51 +01:00
Referenced by commit 5e0ec49570, Fix T48416: Impossible to append from another file without localizing also all indirectly linked data.
Referenced by issue #48416, Impossible to copy a linked object from a file to another one mantaining the linked library
1 changed files with 202 additions and 99 deletions

View File

@ -59,10 +59,13 @@
#include "PIL_time.h"
#include "BLI_blenlib.h"
#include "BLI_bitmap.h"
#include "BLI_dial.h"
#include "BLI_dynstr.h" /*for WM_operator_pystring */
#include "BLI_linklist.h"
#include "BLI_linklist_stack.h"
#include "BLI_math.h"
#include "BLI_memarena.h"
#include "BLI_utildefines.h"
#include "BLI_ghash.h"
@ -2604,106 +2607,150 @@ static int wm_link_append_invoke(bContext *C, wmOperator *op, const wmEvent *UNU
static short wm_link_append_flag(wmOperator *op)
{
PropertyRNA *prop;
short flag = 0;
if (RNA_boolean_get(op->ptr, "autoselect")) flag |= FILE_AUTOSELECT;
if (RNA_boolean_get(op->ptr, "active_layer")) flag |= FILE_ACTIVELAY;
if (RNA_struct_find_property(op->ptr, "relative_path") && RNA_boolean_get(op->ptr, "relative_path")) flag |= FILE_RELPATH;
if (RNA_boolean_get(op->ptr, "link")) flag |= FILE_LINK;
if (RNA_boolean_get(op->ptr, "instance_groups")) flag |= FILE_GROUP_INSTANCE;
if (RNA_boolean_get(op->ptr, "autoselect"))
flag |= FILE_AUTOSELECT;
if (RNA_boolean_get(op->ptr, "active_layer"))
flag |= FILE_ACTIVELAY;
if ((prop = RNA_struct_find_property(op->ptr, "relative_path")) && RNA_property_boolean_get(op->ptr, prop))
flag |= FILE_RELPATH;
if (RNA_boolean_get(op->ptr, "link"))
flag |= FILE_LINK;
if (RNA_boolean_get(op->ptr, "instance_groups"))
flag |= FILE_GROUP_INSTANCE;
return flag;
}
/* Helper.
* if `name` is non-NULL, we assume a single-item link/append.
* else if `*todo_libraries` is NULL we assume first-run.
*/
static void wm_link_append_do_libgroup(
bContext *C, wmOperator *op, const char *root, const char *libname, char *group, char *name,
const short flag, GSet **todo_libraries)
typedef struct WMLinkAppendDataItem {
char *name;
BLI_bitmap *libraries; /* All libs (from WMLinkAppendData.libraries) to try to load this ID from. */
int idcode;
ID *new_id;
void *customdata;
} WMLinkAppendDataItem;
typedef struct WMLinkAppendData {
LinkNodePair libraries;
LinkNodePair items;
int num_libraries;
int num_items;
short flag;
/* Internal 'private' data */
MemArena *memarena;
} WMLinkAppendData;
static WMLinkAppendData *wm_link_append_data_new(const int flag)
{
MemArena *ma = BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, __func__);
WMLinkAppendData *lapp_data = BLI_memarena_calloc(ma, sizeof(*lapp_data));
lapp_data->flag = flag;
lapp_data->memarena = ma;
return lapp_data;
}
static void wm_link_append_data_free(WMLinkAppendData *lapp_data)
{
BLI_memarena_free(lapp_data->memarena);
}
/* WARNING! *Never* call wm_link_append_data_library_add() after having added some items! */
static void wm_link_append_data_library_add(WMLinkAppendData *lapp_data, const char *libname)
{
size_t len = strlen(libname) + 1;
char *libpath = BLI_memarena_alloc(lapp_data->memarena, len);
BLI_strncpy(libpath, libname, len);
BLI_linklist_append_arena(&lapp_data->libraries, libpath, lapp_data->memarena);
lapp_data->num_libraries++;
}
static WMLinkAppendDataItem *wm_link_append_data_item_add(
WMLinkAppendData *lapp_data, const char *idname, const int idcode, void *customdata)
{
WMLinkAppendDataItem *item = BLI_memarena_alloc(lapp_data->memarena, sizeof(*item));
size_t len = strlen(idname) + 1;
item->name = BLI_memarena_alloc(lapp_data->memarena, len);
BLI_strncpy(item->name, idname, len);
item->idcode = idcode;
item->libraries = BLI_BITMAP_NEW_MEMARENA(lapp_data->memarena, lapp_data->num_libraries);
item->new_id = NULL;
item->customdata = customdata;
BLI_linklist_append_arena(&lapp_data->items, item, lapp_data->memarena);
lapp_data->num_items++;
return item;
}
static void wm_link_do(
WMLinkAppendData *lapp_data, ReportList *reports, Main *bmain, Scene *scene, View3D *v3d)
{
Main *bmain = CTX_data_main(C);
Main *mainl;
BlendHandle *bh;
Library *lib;
char path[FILE_MAX_LIBEXTRA], relname[FILE_MAX];
int idcode;
const bool is_first_run = (*todo_libraries == NULL);
const int flag = lapp_data->flag;
BLI_assert(group);
idcode = BKE_idcode_from_name(group);
LinkNode *liblink, *itemlink;
int lib_idx, item_idx;
bh = BLO_blendhandle_from_file(libname, op->reports);
BLI_assert(lapp_data->num_items && lapp_data->num_libraries);
if (bh == NULL) {
/* unlikely since we just browsed it, but possible
* error reports will have been made by BLO_blendhandle_from_file() */
return;
}
for (lib_idx = 0, liblink = lapp_data->libraries.list; liblink; lib_idx++, liblink = liblink->next) {
char *libname = liblink->link;
/* here appending/linking starts */
mainl = BLO_library_link_begin(bmain, &bh, libname);
lib = mainl->curlib;
BLI_assert(lib);
bh = BLO_blendhandle_from_file(libname, reports);
if (mainl->versionfile < 250) {
BKE_reportf(op->reports, RPT_WARNING,
"Linking or appending from a very old .blend file format (%d.%d), no animation conversion will "
"be done! You may want to re-save your lib file with current Blender",
mainl->versionfile, mainl->subversionfile);
}
if (name) {
BLO_library_link_named_part_ex(mainl, &bh, name, idcode, flag, CTX_data_scene(C), CTX_wm_view3d(C));
}
else {
if (is_first_run) {
*todo_libraries = BLI_gset_new(BLI_ghashutil_strhash_p, BLI_ghashutil_strcmp, __func__);
if (bh == NULL) {
/* Unlikely since we just browsed it, but possible
* Error reports will have been made by BLO_blendhandle_from_file() */
continue;
}
RNA_BEGIN (op->ptr, itemptr, "files")
{
char curr_libname[FILE_MAX];
int curr_idcode;
/* here appending/linking starts */
mainl = BLO_library_link_begin(bmain, &bh, libname);
lib = mainl->curlib;
BLI_assert(lib);
UNUSED_VARS_NDEBUG(lib);
RNA_string_get(&itemptr, "name", relname);
if (mainl->versionfile < 250) {
BKE_reportf(reports, RPT_WARNING,
"Linking or appending from a very old .blend file format (%d.%d), no animation conversion will "
"be done! You may want to re-save your lib file with current Blender",
mainl->versionfile, mainl->subversionfile);
}
BLI_join_dirfile(path, sizeof(path), root, relname);
/* For each lib file, we try to link all items belonging to that lib,
* and tag those successful to not try to load them again with the other libs. */
for (item_idx = 0, itemlink = lapp_data->items.list; itemlink; item_idx++, itemlink = itemlink->next) {
WMLinkAppendDataItem *item = itemlink->link;
ID *new_id;
if (BLO_library_path_explode(path, curr_libname, &group, &name)) {
if (!group || !name) {
continue;
}
if (!BLI_BITMAP_TEST(item->libraries, lib_idx)) {
continue;
}
curr_idcode = BKE_idcode_from_name(group);
if ((idcode == curr_idcode) && (BLI_path_cmp(curr_libname, libname) == 0)) {
BLO_library_link_named_part_ex(mainl, &bh, name, idcode, flag, CTX_data_scene(C), CTX_wm_view3d(C));
}
else if (is_first_run) {
BLI_join_dirfile(path, sizeof(path), curr_libname, group);
if (!BLI_gset_haskey(*todo_libraries, path)) {
BLI_gset_insert(*todo_libraries, BLI_strdup(path));
}
}
new_id = BLO_library_link_named_part_ex(mainl, &bh, item->name, item->idcode, flag, scene, v3d);
if (new_id) {
/* If the link is sucessful, clear item's libs 'todo' flags.
* This avoids trying to link same item with other libraries to come. */
BLI_BITMAP_SET_ALL(item->libraries, false, lapp_data->num_libraries);
item->new_id = new_id;
}
}
RNA_END;
}
BLO_library_link_end(mainl, &bh, flag, CTX_data_scene(C), CTX_wm_view3d(C));
BLO_blendhandle_close(bh);
/* mark all library linked objects to be updated */
BKE_main_lib_objects_recalc_all(bmain);
IMB_colormanagement_check_file_config(bmain);
/* append, rather than linking */
if ((flag & FILE_LINK) == 0) {
BLI_assert(BLI_findindex(&bmain->library, lib) != -1);
BKE_library_make_local(bmain, lib, true);
BLO_library_link_end(mainl, &bh, flag, scene, v3d);
BLO_blendhandle_close(bh);
}
}
@ -2712,13 +2759,12 @@ static int wm_link_append_exec(bContext *C, wmOperator *op)
Main *bmain = CTX_data_main(C);
Scene *scene = CTX_data_scene(C);
PropertyRNA *prop;
WMLinkAppendData *lapp_data;
char path[FILE_MAX_LIBEXTRA], root[FILE_MAXDIR], libname[FILE_MAX], relname[FILE_MAX];
char *group, *name;
int totfiles = 0;
short flag;
GSet *todo_libraries = NULL;
RNA_string_get(op->ptr, "filename", relname);
RNA_string_get(op->ptr, "directory", root);
@ -2726,15 +2772,15 @@ static int wm_link_append_exec(bContext *C, wmOperator *op)
/* test if we have a valid data */
if (!BLO_library_path_explode(path, libname, &group, &name)) {
BKE_report(op->reports, RPT_ERROR, "Not a library");
BKE_reportf(op->reports, RPT_ERROR, "'%s': not a library", path);
return OPERATOR_CANCELLED;
}
else if (!group) {
BKE_report(op->reports, RPT_ERROR, "Nothing indicated");
BKE_reportf(op->reports, RPT_ERROR, "'%s': nothing indicated", path);
return OPERATOR_CANCELLED;
}
else if (BLI_path_cmp(bmain->name, libname) == 0) {
BKE_report(op->reports, RPT_ERROR, "Cannot use current file as library");
BKE_reportf(op->reports, RPT_ERROR, "'%s': cannot use current file as library", path);
return OPERATOR_CANCELLED;
}
@ -2744,55 +2790,112 @@ static int wm_link_append_exec(bContext *C, wmOperator *op)
totfiles = RNA_property_collection_length(op->ptr, prop);
if (totfiles == 0) {
if (!name) {
BKE_report(op->reports, RPT_ERROR, "Nothing indicated");
BKE_reportf(op->reports, RPT_ERROR, "'%s': nothing indicated", path);
return OPERATOR_CANCELLED;
}
}
}
else if (!name) {
BKE_report(op->reports, RPT_ERROR, "Nothing indicated");
BKE_reportf(op->reports, RPT_ERROR, "'%s': nothing indicated", path);
return OPERATOR_CANCELLED;
}
flag = wm_link_append_flag(op);
/* sanity checks for flag */
if (scene->id.lib && (flag & FILE_GROUP_INSTANCE)) {
/* TODO, user never gets this message */
BKE_reportf(op->reports, RPT_WARNING, "Scene '%s' is linked, group instance disabled", scene->id.name + 2);
if (scene && scene->id.lib) {
BKE_reportf(op->reports, RPT_WARNING,
"Scene '%s' is linked, instanciation of objects & groups is disabled", scene->id.name + 2);
flag &= ~FILE_GROUP_INSTANCE;
scene = NULL;
}
/* from here down, no error returns */
/* now we have or selected, or an indicated file */
if (RNA_boolean_get(op->ptr, "autoselect"))
if (scene && RNA_boolean_get(op->ptr, "autoselect")) {
BKE_scene_base_deselect_all(scene);
}
/* tag everything, all untagged data can be made local
* its also generally useful to know what is new
*
* take extra care BKE_main_id_flag_all(LIB_LINK_TAG, false) is called after! */
BKE_main_id_flag_all(bmain, LIB_PRE_EXISTING, 1);
* take extra care BKE_main_id_flag_all(bmain, LIB_PRE_EXISTING, false) is called after! */
BKE_main_id_flag_all(bmain, LIB_PRE_EXISTING, true);
/* We define our working data...
* Note that here, each item 'uses' one library, and only one. */
lapp_data = wm_link_append_data_new(flag);
if (totfiles != 0) {
name = NULL;
GHash *libraries = BLI_ghash_new(BLI_ghashutil_strhash_p, BLI_ghashutil_strcmp, __func__);
int lib_idx = 0;
RNA_BEGIN (op->ptr, itemptr, "files")
{
RNA_string_get(&itemptr, "name", relname);
BLI_join_dirfile(path, sizeof(path), root, relname);
if (BLO_library_path_explode(path, libname, &group, &name)) {
if (!group || !name) {
continue;
}
if (!BLI_ghash_haskey(libraries, libname)) {
BLI_ghash_insert(libraries, BLI_strdup(libname), SET_INT_IN_POINTER(lib_idx));
lib_idx++;
wm_link_append_data_library_add(lapp_data, libname);
}
}
}
RNA_END;
RNA_BEGIN (op->ptr, itemptr, "files")
{
RNA_string_get(&itemptr, "name", relname);
BLI_join_dirfile(path, sizeof(path), root, relname);
if (BLO_library_path_explode(path, libname, &group, &name)) {
WMLinkAppendDataItem *item;
if (!group || !name) {
printf("skipping %s\n", path);
continue;
}
lib_idx = GET_INT_FROM_POINTER(BLI_ghash_lookup(libraries, libname));
item = wm_link_append_data_item_add(lapp_data, name, BKE_idcode_from_name(group), NULL);
BLI_BITMAP_ENABLE(item->libraries, lib_idx);
}
}
RNA_END;
BLI_ghash_free(libraries, MEM_freeN, NULL);
}
else {
WMLinkAppendDataItem *item;
wm_link_append_data_library_add(lapp_data, libname);
item = wm_link_append_data_item_add(lapp_data, name, BKE_idcode_from_name(group), NULL);
BLI_BITMAP_ENABLE(item->libraries, 0);
}
wm_link_append_do_libgroup(C, op, root, libname, group, name, flag, &todo_libraries);
/* XXX We'd need re-entrant locking on Main for this to work... */
/* BKE_main_lock(bmain); */
if (todo_libraries) {
GSetIterator libs_it;
wm_link_do(lapp_data, op->reports, bmain, scene, CTX_wm_view3d(C));
GSET_ITER(libs_it, todo_libraries) {
char *libpath = (char *)BLI_gsetIterator_getKey(&libs_it);
/* BKE_main_unlock(bmain); */
BLO_library_path_explode(libpath, libname, &group, NULL);
wm_link_append_data_free(lapp_data);
wm_link_append_do_libgroup(C, op, root, libname, group, NULL, flag, &todo_libraries);
}
/* mark all library linked objects to be updated */
BKE_main_lib_objects_recalc_all(bmain);
IMB_colormanagement_check_file_config(bmain);
BLI_gset_free(todo_libraries, MEM_freeN);
/* append, rather than linking */
if ((flag & FILE_LINK) == 0) {
BKE_library_make_local(bmain, NULL, true);
}
/* important we unset, otherwise these object wont