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Add symlink API support for Windows, expose symlink methods.

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This commit is contained in:
bruvzg 2024-04-24 10:48:47 +03:00
parent 6118592c6d
commit fc948e87f6
4 changed files with 93 additions and 3 deletions
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60
drivers/windows/dir_access_windows.cpp
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@ -396,6 +396,66 @@ bool DirAccessWindows::is_case_sensitive(const String &p_path) const {
}
}
bool DirAccessWindows::is_link(String p_file) {
String f = p_file;
if (!f.is_absolute_path()) {
f = get_current_dir().path_join(f);
}
f = fix_path(f);
DWORD attr = GetFileAttributesW((LPCWSTR)(f.utf16().get_data()));
if (attr == INVALID_FILE_ATTRIBUTES) {
return false;
}
return (attr & FILE_ATTRIBUTE_REPARSE_POINT);
}
String DirAccessWindows::read_link(String p_file) {
String f = p_file;
if (!f.is_absolute_path()) {
f = get_current_dir().path_join(f);
}
f = fix_path(f);
HANDLE hfile = CreateFileW((LPCWSTR)(f.utf16().get_data()), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr);
if (hfile == INVALID_HANDLE_VALUE) {
return f;
}
DWORD ret = GetFinalPathNameByHandleW(hfile, nullptr, 0, VOLUME_NAME_DOS | FILE_NAME_NORMALIZED);
if (ret == 0) {
return f;
}
Char16String cs;
cs.resize(ret + 1);
GetFinalPathNameByHandleW(hfile, (LPWSTR)cs.ptrw(), ret, VOLUME_NAME_DOS | FILE_NAME_NORMALIZED);
CloseHandle(hfile);
return String::utf16((const char16_t *)cs.ptr(), ret).trim_prefix(R"(\\?\)");
}
Error DirAccessWindows::create_link(String p_source, String p_target) {
if (p_target.is_relative_path()) {
p_target = get_current_dir().path_join(p_target);
}
p_source = fix_path(p_source);
p_target = fix_path(p_target);
DWORD file_attr = GetFileAttributesW((LPCWSTR)(p_source.utf16().get_data()));
bool is_dir = (file_attr & FILE_ATTRIBUTE_DIRECTORY);
DWORD flags = ((is_dir) ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0) | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE;
if (CreateSymbolicLinkW((LPCWSTR)p_target.utf16().get_data(), (LPCWSTR)p_source.utf16().get_data(), flags) != 0) {
return OK;
} else {
return FAILED;
}
}
DirAccessWindows::DirAccessWindows() {
p = memnew(DirAccessWindowsPrivate);
p->h = INVALID_HANDLE_VALUE;