1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*************************************************************************/
/* path_utils.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 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 "path_utils.h"
#include "core/config/project_settings.h"
#include "core/io/dir_access.h"
#include "core/io/file_access.h"
#include "core/os/os.h"
#ifdef WINDOWS_ENABLED
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#define ENV_PATH_SEP ";"
#else
#include <limits.h>
#include <unistd.h>
#define ENV_PATH_SEP ":"
#endif
#include <stdlib.h>
namespace path {
String cwd() {
#ifdef WINDOWS_ENABLED
const DWORD expected_size = ::GetCurrentDirectoryW(0, nullptr);
Char16String buffer;
buffer.resize((int)expected_size);
if (::GetCurrentDirectoryW(expected_size, (wchar_t *)buffer.ptrw()) == 0)
return ".";
String result;
if (result.parse_utf16(buffer.ptr())) {
return ".";
}
return result.simplify_path();
#else
char buffer[PATH_MAX];
if (::getcwd(buffer, sizeof(buffer)) == nullptr) {
return ".";
}
String result;
if (result.parse_utf8(buffer)) {
return ".";
}
return result.simplify_path();
#endif
}
String abspath(const String &p_path) {
if (p_path.is_absolute_path()) {
return p_path.simplify_path();
} else {
return path::join(path::cwd(), p_path).simplify_path();
}
}
String realpath(const String &p_path) {
#ifdef WINDOWS_ENABLED
// Open file without read/write access
HANDLE hFile = ::CreateFileW((LPCWSTR)(p_path.utf16().get_data()), 0,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
if (hFile == INVALID_HANDLE_VALUE)
return p_path;
const DWORD expected_size = ::GetFinalPathNameByHandleW(hFile, nullptr, 0, FILE_NAME_NORMALIZED);
if (expected_size == 0) {
::CloseHandle(hFile);
return p_path;
}
Char16String buffer;
buffer.resize((int)expected_size);
::GetFinalPathNameByHandleW(hFile, (wchar_t *)buffer.ptrw(), expected_size, FILE_NAME_NORMALIZED);
::CloseHandle(hFile);
String result;
if (result.parse_utf16(buffer.ptr())) {
return p_path;
}
return result.simplify_path();
#elif UNIX_ENABLED
char *resolved_path = ::realpath(p_path.utf8().get_data(), nullptr);
if (!resolved_path) {
return p_path;
}
String result;
bool parse_ok = result.parse_utf8(resolved_path);
::free(resolved_path);
if (parse_ok) {
return p_path;
}
return result.simplify_path();
#endif
}
String join(const String &p_a, const String &p_b) {
if (p_a.is_empty()) {
return p_b;
}
const char32_t a_last = p_a[p_a.length() - 1];
if ((a_last == '/' || a_last == '\\') ||
(p_b.size() > 0 && (p_b[0] == '/' || p_b[0] == '\\'))) {
return p_a + p_b;
}
return p_a + "/" + p_b;
}
String join(const String &p_a, const String &p_b, const String &p_c) {
return path::join(path::join(p_a, p_b), p_c);
}
String join(const String &p_a, const String &p_b, const String &p_c, const String &p_d) {
return path::join(path::join(path::join(p_a, p_b), p_c), p_d);
}
String relative_to_impl(const String &p_path, const String &p_relative_to) {
// This function assumes arguments are normalized and absolute paths
if (p_path.begins_with(p_relative_to)) {
return p_path.substr(p_relative_to.length() + 1);
} else {
String base_dir = p_relative_to.get_base_dir();
if (base_dir.length() <= 2 && (base_dir.is_empty() || base_dir.ends_with(":"))) {
return p_path;
}
return String("..").plus_file(relative_to_impl(p_path, base_dir));
}
}
#ifdef WINDOWS_ENABLED
String get_drive_letter(const String &p_norm_path) {
int idx = p_norm_path.find(":/");
if (idx != -1 && idx < p_norm_path.find("/"))
return p_norm_path.substr(0, idx + 1);
return String();
}
#endif
String relative_to(const String &p_path, const String &p_relative_to) {
String relative_to_abs_norm = abspath(p_relative_to);
String path_abs_norm = abspath(p_path);
#ifdef WINDOWS_ENABLED
if (get_drive_letter(relative_to_abs_norm) != get_drive_letter(path_abs_norm)) {
return path_abs_norm;
}
#endif
return relative_to_impl(path_abs_norm, relative_to_abs_norm);
}
} // namespace path
|