433 lines
8.9 KiB
C++
433 lines
8.9 KiB
C++
/*************************************************************************/
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/* dir_access.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "dir_access.h"
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#include "os/file_access.h"
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#include "os/memory.h"
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#include "os/os.h"
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#include "globals.h"
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String DirAccess::_get_root_path() const {
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switch(_access_type) {
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case ACCESS_RESOURCES: return Globals::get_singleton()->get_resource_path();
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case ACCESS_USERDATA: return OS::get_singleton()->get_data_dir();
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default: return "";
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}
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return "";
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}
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String DirAccess::_get_root_string() const {
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switch(_access_type) {
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case ACCESS_RESOURCES: return "res://";
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case ACCESS_USERDATA: return "user://";
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default: return "";
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}
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return "";
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}
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int DirAccess::get_current_drive() {
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String path = get_current_dir().to_lower();
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for(int i=0;i<get_drive_count();i++) {
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String d = get_drive(i).to_lower();
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if (path.begins_with(d))
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return i;
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}
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return 0;
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}
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static Error _erase_recursive(DirAccess *da) {
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List<String> dirs;
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List<String> files;
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da->list_dir_begin();
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String n = da->get_next();
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while(n!=String()) {
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if (n!="." && n!="..") {
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if (da->current_is_dir())
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dirs.push_back(n);
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else
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files.push_back(n);
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}
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n=da->get_next();
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}
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da->list_dir_end();
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for(List<String>::Element *E=dirs.front();E;E=E->next()) {
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Error err = da->change_dir(E->get());
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if (err==OK) {
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err = _erase_recursive(da);
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if (err) {
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print_line("err recurso "+E->get());
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return err;
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}
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err = da->change_dir("..");
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if (err) {
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print_line("no go back "+E->get());
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return err;
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}
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err = da->remove(da->get_current_dir().plus_file(E->get()));
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if (err) {
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print_line("no remove dir"+E->get());
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return err;
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}
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} else {
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print_line("no change to "+E->get());
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return err;
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}
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}
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for(List<String>::Element *E=files.front();E;E=E->next()) {
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Error err = da->remove(da->get_current_dir().plus_file(E->get()));
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if (err) {
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print_line("no remove file"+E->get());
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return err;
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}
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}
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return OK;
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}
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Error DirAccess::erase_contents_recursive() {
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return _erase_recursive(this);
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}
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Error DirAccess::make_dir_recursive(String p_dir) {
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if (p_dir.length() < 1) {
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return OK;
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};
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String full_dir;
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Globals* g = Globals::get_singleton();
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if (!p_dir.is_abs_path()) {
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//append current
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String cur = normalize_path(g->globalize_path(get_current_dir()));
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if (cur[cur.length()-1] != '/') {
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cur = cur + "/";
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};
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full_dir=(cur+"/"+p_dir).simplify_path();
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} else {
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//validate and use given
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String dir = normalize_path(g->globalize_path(p_dir));
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if (dir.length() < 1) {
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return OK;
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};
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if (dir[dir.length()-1] != '/') {
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dir = dir + "/";
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};
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full_dir=dir;
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}
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//int slices = full_dir.get_slice_count("/");
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int pos = 0;
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while (pos < full_dir.length()) {
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int n = full_dir.find("/", pos);
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if (n < 0) {
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n = full_dir.length();
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};
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pos = n + 1;
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if (pos > 1) {
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String to_create = full_dir.substr(0, pos -1);
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//print_line("MKDIR: "+to_create);
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Error err = make_dir(to_create);
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if (err != OK && err != ERR_ALREADY_EXISTS) {
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ERR_FAIL_V(err);
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};
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};
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};
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return OK;
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};
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String DirAccess::normalize_path(const String &p_path) {
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static const int max_depth = 64;
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int pos_stack[max_depth];
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int curr = 0;
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int pos = 0;
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String cur_dir;
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do {
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if (curr >= max_depth) {
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ERR_PRINT("Directory depth too deep.");
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return "";
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};
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int start = pos;
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int next = p_path.find("/", pos);
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if (next < 0) {
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next = p_path.length() - 1;
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};
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pos = next + 1;
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cur_dir = p_path.substr(start, next - start);
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if (cur_dir == "" || cur_dir == ".") {
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continue;
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};
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if (cur_dir == "..") {
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if (curr > 0) { // pop a dir
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curr -= 2;
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};
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continue;
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};
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pos_stack[curr++] = start;
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pos_stack[curr++] = next;
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} while (pos < p_path.length());
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String path;
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if (p_path[0] == '/') {
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path = "/";
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};
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int i=0;
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while (i < curr) {
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int start = pos_stack[i++];
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while ( ((i+1)<curr) && (pos_stack[i] == pos_stack[i+1]) ) {
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++i;
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};
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path = path + p_path.substr(start, (pos_stack[i++] - start) + 1);
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};
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return path;
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};
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String DirAccess::get_next(bool* p_is_dir) {
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String next=get_next();
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if (p_is_dir)
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*p_is_dir=current_is_dir();
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return next;
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}
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String DirAccess::fix_path(String p_path) const {
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switch(_access_type) {
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case ACCESS_RESOURCES: {
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if (Globals::get_singleton()) {
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if (p_path.begins_with("res://")) {
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String resource_path = Globals::get_singleton()->get_resource_path();
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if (resource_path != "") {
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return p_path.replace("res:/",resource_path);
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};
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return p_path.replace("res://", "");
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}
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}
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} break;
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case ACCESS_USERDATA: {
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if (p_path.begins_with("user://")) {
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String data_dir=OS::get_singleton()->get_data_dir();
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if (data_dir != "") {
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return p_path.replace("user:/",data_dir);
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};
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return p_path.replace("user://", "");
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}
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} break;
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case ACCESS_FILESYSTEM: {
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return p_path;
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} break;
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}
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return p_path;
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}
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DirAccess::CreateFunc DirAccess::create_func[ACCESS_MAX]={0,0,0};
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DirAccess *DirAccess::create_for_path(const String& p_path) {
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DirAccess *da=NULL;
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if (p_path.begins_with("res://")) {
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da=create(ACCESS_RESOURCES);
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} else if (p_path.begins_with("user://")) {
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da=create(ACCESS_USERDATA);
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} else {
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da=create(ACCESS_FILESYSTEM);
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}
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return da;
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}
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DirAccess *DirAccess::open(const String& p_path,Error *r_error) {
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DirAccess *da=create_for_path(p_path);
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ERR_FAIL_COND_V(!da,NULL);
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Error err = da->change_dir(p_path);
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if (r_error)
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*r_error=err;
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if (err!=OK) {
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memdelete(da);
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return NULL;
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}
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return da;
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}
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DirAccess *DirAccess::create(AccessType p_access) {
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DirAccess * da = create_func[p_access]?create_func[p_access]():NULL;
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if (da) {
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da->_access_type=p_access;
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}
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return da;
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};
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String DirAccess::get_full_path(const String& p_path,AccessType p_access) {
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DirAccess *d=DirAccess::create(p_access);
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if (!d)
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return p_path;
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d->change_dir(p_path);
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String full=d->get_current_dir();
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memdelete(d);
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return full;
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}
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Error DirAccess::copy(String p_from,String p_to) {
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//printf("copy %s -> %s\n",p_from.ascii().get_data(),p_to.ascii().get_data());
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Error err;
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FileAccess *fsrc = FileAccess::open(p_from, FileAccess::READ,&err);
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if (err) {
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ERR_FAIL_COND_V( err, err );
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}
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FileAccess *fdst = FileAccess::open(p_to, FileAccess::WRITE,&err );
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if (err) {
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fsrc->close();
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memdelete( fsrc );
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ERR_FAIL_COND_V( err, err );
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}
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fsrc->seek_end(0);
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int size = fsrc->get_pos();
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fsrc->seek(0);
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err = OK;
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while(size--) {
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if (fsrc->get_error()!=OK) {
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err= fsrc->get_error();
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break;
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}
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if (fdst->get_error()!=OK) {
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err= fdst->get_error();
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break;
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}
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fdst->store_8( fsrc->get_8() );
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}
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memdelete(fsrc);
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memdelete(fdst);
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return err;
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}
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bool DirAccess::exists(String p_dir) {
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DirAccess* da = DirAccess::create_for_path(p_dir);
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bool valid = da->change_dir(p_dir)==OK;
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memdelete(da);
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return valid;
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}
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DirAccess::DirAccess(){
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_access_type=ACCESS_FILESYSTEM;
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}
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DirAccess::~DirAccess() {
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}
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