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godot/core/os/dir_access.cpp

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/*************************************************************************/
/* dir_access.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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 "globals.h"
#include "os/file_access.h"
#include "os/memory.h"
#include "os/os.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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