Remove vendored usvfs and Windows-only usvfs code paths

The Linux port uses its own in-process FUSE VFS (FuseConnector), so
usvfs was dead weight: libs/usvfs/ was never built, usvfsconnector.cpp
was explicitly REMOVE_ITEM'd from the source list, and every call site
was already guarded by #ifdef _WIN32 with a working Linux branch (the
Windows build is also broken on this branch, since FUSE3 is a hard
find_package dependency).

- Drop libs/usvfs/ and src/src/usvfsconnector.{cpp,h}
- Collapse #ifdef _WIN32 / usvfs include branches in organizercore,
  mainwindow, settings, util, spawn
- Remove getUsvfsVersionString() and the "usvfs: ..." log field
- Remove vfs32/64DLLName APPPARAMs (nothing reads them)
- Relabel About dialog "usvfs:" row to "VFS: FUSE 3"

1 files changed, 0 insertions, 170 deletions

diff --git a/libs/usvfs/src/shared/stringcast.h b/libs/usvfs/src/shared/stringcast.h
deleted file mode 100644
index 0ce56d1..0000000
--- a/libs/usvfs/src/shared/stringcast.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
-Userspace Virtual Filesystem
-
-Copyright (C) 2015 Sebastian Herbord. All rights reserved.
-
-This file is part of usvfs.
-
-usvfs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-usvfs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with usvfs. If not, see <http://www.gnu.org/licenses/>.
-*/
-#pragma once
-
-#include "exceptionex.h"
-
-namespace usvfs::shared
-{
-
-enum class CodePage
-{
-  LOCAL,
-  LATIN1,
-  UTF8
-};
-
-template <typename ToT, typename FromT>
-class string_cast_impl
-{
-public:
-  static ToT cast(const FromT& source, CodePage codePage, size_t sourceLength);
-};
-
-template <typename ToT, typename FromT>
-ToT string_cast(FromT source, CodePage codePage = CodePage::LOCAL,
-                size_t sourceLength = std::numeric_limits<size_t>::max())
-{
-  return string_cast_impl<ToT, FromT>::cast(source, codePage, sourceLength);
-}
-
-template <typename ToT, typename CharT>
-class string_cast_impl<ToT, std::basic_string<CharT>>
-{
-public:
-  static ToT cast(const std::basic_string<CharT>& source, CodePage codePage,
-                  size_t sourceLength)
-  {
-    return string_cast_impl<ToT, const CharT*>::cast(source.c_str(), codePage,
-                                                     sourceLength);
-  }
-};
-
-template <typename ToT, typename CharT>
-class string_cast_impl<ToT, CharT*>
-{
-  BOOST_STATIC_ASSERT(!boost::is_base_and_derived<ToT, CharT>::value);
-
-public:
-  static ToT cast(CharT* source, CodePage codePage, size_t sourceLength)
-  {
-    return string_cast_impl<ToT, const CharT*>::cast(source, codePage, sourceLength);
-  }
-};
-
-template <typename ToT, typename CharT, int N>
-class string_cast_impl<ToT, CharT[N]>
-{
-public:
-  static ToT cast(CharT (&source)[N], CodePage codePage, size_t sourceLength)
-  {
-    return string_cast_impl<ToT, const CharT*>::cast(source, codePage, sourceLength);
-  }
-};
-
-UINT windowsCP(CodePage codePage);
-
-template <>
-class string_cast_impl<std::string, const wchar_t*>
-{
-public:
-  static std::string cast(const wchar_t* const& source, CodePage codePage,
-                          size_t sourceLength)
-  {
-    std::string result;
-
-    if (sourceLength == std::numeric_limits<size_t>::max()) {
-      sourceLength = wcslen(source);
-    }
-
-    if (sourceLength > 0) {
-      // use utf8 or local 8-bit encoding depending on user choice
-      UINT cp = windowsCP(codePage);
-      // preflight to find out the required buffer size
-      int outLength = WideCharToMultiByte(cp, 0, source, static_cast<int>(sourceLength),
-                                          nullptr, 0, nullptr, nullptr);
-      if (outLength == 0) {
-        throw windows_error("string conversion failed");
-      }
-      result.resize(outLength);
-      outLength = WideCharToMultiByte(cp, 0, source, static_cast<int>(sourceLength),
-                                      &result[0], outLength, nullptr, nullptr);
-      if (outLength == 0) {
-        throw windows_error("string conversion failed");
-      }
-      // fix output string length (i.e. in case of unconvertible characters
-      while (result[outLength - 1] == L'\0') {
-        result.resize(--outLength);
-      }
-    }
-
-    return result;
-  }
-};
-
-template <>
-class string_cast_impl<std::wstring, const char*>
-{
-public:
-  static std::wstring cast(const char* const& source, CodePage codePage,
-                           size_t sourceLength)
-  {
-    std::wstring result;
-
-    if (sourceLength == std::numeric_limits<size_t>::max()) {
-      sourceLength = strlen(source);
-    }
-
-    if (sourceLength > 0) {
-      // use utf8 or local 8-bit encoding depending on user choice
-      UINT cp = windowsCP(codePage);
-      // preflight to find out the required source size
-      int outLength = MultiByteToWideChar(cp, 0, source, static_cast<int>(sourceLength),
-                                          &result[0], 0);
-      if (outLength == 0) {
-        throw windows_error("string conversion failed");
-      }
-      result.resize(outLength);
-      outLength = MultiByteToWideChar(cp, 0, source, static_cast<int>(sourceLength),
-                                      &result[0], outLength);
-      if (outLength == 0) {
-        throw windows_error("string conversion failed");
-      }
-      while (result[outLength - 1] == L'\0') {
-        result.resize(--outLength);
-      }
-    }
-
-    return result;
-  }
-};
-
-template <>
-class string_cast_impl<std::wstring, const wchar_t*>
-{
-public:
-  static std::wstring cast(const wchar_t* const& source, CodePage, size_t)
-  {
-    return std::wstring(source);
-  }
-};
-
-}  // namespace usvfs::shared