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godot/core/os/dir_access.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

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7.9 KiB
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/*************************************************************************/
/* dir_access.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "dir_access.h"
#include "os/file_access.h"
#include "os/memory.h"
#include "os/os.h"
#include "globals.h"
String DirAccess::_get_root_path() const {
switch(_access_type) {
case ACCESS_RESOURCES: return Globals::get_singleton()->get_resource_path();
case ACCESS_USERDATA: return OS::get_singleton()->get_data_dir();
default: return "";
}
return "";
}
String DirAccess::_get_root_string() const {
switch(_access_type) {
case ACCESS_RESOURCES: return "res://";
case ACCESS_USERDATA: return "user://";
default: return "";
}
return "";
}
int DirAccess::get_current_drive() {
String path = get_current_dir().to_lower();
for(int i=0;i<get_drive_count();i++) {
String d = get_drive(i).to_lower();
if (path.begins_with(d))
return i;
}
return 0;
}
static Error _erase_recursive(DirAccess *da) {
List<String> dirs;
List<String> files;
da->list_dir_begin();
String n = da->get_next();
while(n!=String()) {
if (n!="." && n!="..") {
if (da->current_is_dir())
dirs.push_back(n);
else
files.push_back(n);
}
n=da->get_next();
}
da->list_dir_end();
for(List<String>::Element *E=dirs.front();E;E=E->next()) {
Error err = da->change_dir(E->get());
if (err==OK) {
err = _erase_recursive(da);
if (err) {
print_line("err recurso "+E->get());
return err;
}
err = da->change_dir("..");
if (err) {
print_line("no go back "+E->get());
return err;
}
err = da->remove(da->get_current_dir().plus_file(E->get()));
if (err) {
print_line("no remove dir"+E->get());
return err;
}
} else {
print_line("no change to "+E->get());
return err;
}
}
for(List<String>::Element *E=files.front();E;E=E->next()) {
Error err = da->remove(da->get_current_dir().plus_file(E->get()));
if (err) {
print_line("no remove file"+E->get());
return err;
}
}
return OK;
}
Error DirAccess::erase_contents_recursive() {
return _erase_recursive(this);
}
Error DirAccess::make_dir_recursive(String p_dir) {
if (p_dir.length() < 1) {
return OK;
};
String full_dir;
if (p_dir.is_rel_path()) {
//append current
full_dir=get_current_dir().plus_file(p_dir);
} else {
full_dir=p_dir;
}
full_dir=full_dir.replace("\\","/");
//int slices = full_dir.get_slice_count("/");
String base;
if (full_dir.begins_with("res://"))
base="res://";
else if (full_dir.begins_with("user://"))
base="user://";
else if (full_dir.begins_with("/"))
base="/";
else if (full_dir.find(":/")!=-1) {
base=full_dir.substr(0,full_dir.find(":/")+2);
} else {
ERR_FAIL_V(ERR_INVALID_PARAMETER);
}
full_dir=full_dir.replace_first(base,"").simplify_path();
Vector<String> subdirs=full_dir.split("/");
String curpath=base;
for(int i=0;i<subdirs.size();i++) {
curpath=curpath.plus_file(subdirs[i]);
Error err = make_dir(curpath);
if (err != OK && err != ERR_ALREADY_EXISTS) {
ERR_FAIL_V(err);
}
}
return OK;
}
String DirAccess::get_next(bool* p_is_dir) {
String next=get_next();
if (p_is_dir)
*p_is_dir=current_is_dir();
return next;
}
String DirAccess::fix_path(String p_path) const {
switch(_access_type) {
case ACCESS_RESOURCES: {
if (Globals::get_singleton()) {
if (p_path.begins_with("res://")) {
String resource_path = Globals::get_singleton()->get_resource_path();
if (resource_path != "") {
return p_path.replace_first("res:/",resource_path);
};
return p_path.replace_first("res://", "");
}
}
} break;
case ACCESS_USERDATA: {
if (p_path.begins_with("user://")) {
String data_dir=OS::get_singleton()->get_data_dir();
if (data_dir != "") {
return p_path.replace_first("user:/",data_dir);
};
return p_path.replace_first("user://", "");
}
} break;
case ACCESS_FILESYSTEM: {
return p_path;
} break;
}
return p_path;
}
DirAccess::CreateFunc DirAccess::create_func[ACCESS_MAX]={0,0,0};
DirAccess *DirAccess::create_for_path(const String& p_path) {
DirAccess *da=NULL;
if (p_path.begins_with("res://")) {
da=create(ACCESS_RESOURCES);
} else if (p_path.begins_with("user://")) {
da=create(ACCESS_USERDATA);
} else {
da=create(ACCESS_FILESYSTEM);
}
return da;
}
DirAccess *DirAccess::open(const String& p_path,Error *r_error) {
DirAccess *da=create_for_path(p_path);
ERR_FAIL_COND_V(!da,NULL);
Error err = da->change_dir(p_path);
if (r_error)
*r_error=err;
if (err!=OK) {
memdelete(da);
return NULL;
}
return da;
}
DirAccess *DirAccess::create(AccessType p_access) {
DirAccess * da = create_func[p_access]?create_func[p_access]():NULL;
if (da) {
da->_access_type=p_access;
}
return da;
};
String DirAccess::get_full_path(const String& p_path,AccessType p_access) {
DirAccess *d=DirAccess::create(p_access);
if (!d)
return p_path;
d->change_dir(p_path);
String full=d->get_current_dir();
memdelete(d);
return full;
}
Error DirAccess::copy(String p_from,String p_to) {
//printf("copy %s -> %s\n",p_from.ascii().get_data(),p_to.ascii().get_data());
Error err;
FileAccess *fsrc = FileAccess::open(p_from, FileAccess::READ,&err);
if (err) {
ERR_FAIL_COND_V( err, err );
}
FileAccess *fdst = FileAccess::open(p_to, FileAccess::WRITE,&err );
if (err) {
fsrc->close();
memdelete( fsrc );
ERR_FAIL_COND_V( err, err );
}
fsrc->seek_end(0);
int size = fsrc->get_pos();
fsrc->seek(0);
err = OK;
while(size--) {
if (fsrc->get_error()!=OK) {
err= fsrc->get_error();
break;
}
if (fdst->get_error()!=OK) {
err= fdst->get_error();
break;
}
fdst->store_8( fsrc->get_8() );
}
memdelete(fsrc);
memdelete(fdst);
return err;
}
bool DirAccess::exists(String p_dir) {
DirAccess* da = DirAccess::create_for_path(p_dir);
bool valid = da->change_dir(p_dir)==OK;
memdelete(da);
return valid;
}
DirAccess::DirAccess(){
_access_type=ACCESS_FILESYSTEM;
}
DirAccess::~DirAccess() {
}
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