Merge branch 'pack-default-settings' into 'master'

Pack default settings

Closes #5925

See merge request OpenMW/openmw!822

CMakeLists.txt

@@ -438,8 +438,8 @@ endif (APPLE)
 
 # Other files
 
-configure_resource_file(${OpenMW_SOURCE_DIR}/files/settings-default.cfg
-    "${OpenMW_BINARY_DIR}" "settings-default.cfg")
+pack_resource_file(${OpenMW_SOURCE_DIR}/files/settings-default.cfg
+    "${OpenMW_BINARY_DIR}" "defaults.bin")
 
 configure_resource_file(${OpenMW_SOURCE_DIR}/files/openmw.appdata.xml
     "${OpenMW_BINARY_DIR}" "openmw.appdata.xml")
@@ -516,6 +516,7 @@ endif (CMAKE_CXX_COMPILER_ID STREQUAL GNU OR CMAKE_CXX_COMPILER_ID STREQUAL Clan
 
 add_subdirectory (extern/osg-ffmpeg-videoplayer)
 add_subdirectory (extern/oics)
+add_subdirectory (extern/Base64)
 if (BUILD_OPENCS)
     add_subdirectory (extern/osgQt)
 endif()
@@ -805,7 +806,7 @@ elseif(NOT APPLE)
         INSTALL(FILES "${OpenMW_SOURCE_DIR}/README.md" DESTINATION "." RENAME "README.txt")
         INSTALL(FILES "${OpenMW_SOURCE_DIR}/LICENSE" DESTINATION "." RENAME "LICENSE.txt")
         INSTALL(FILES "${OpenMW_SOURCE_DIR}/files/mygui/DejaVuFontLicense.txt" DESTINATION ".")
-        INSTALL(FILES "${INSTALL_SOURCE}/settings-default.cfg" DESTINATION ".")
+        INSTALL(FILES "${INSTALL_SOURCE}/defaults.bin" DESTINATION ".")
         INSTALL(FILES "${INSTALL_SOURCE}/gamecontrollerdb.txt" DESTINATION ".")
 
         INSTALL(DIRECTORY "${INSTALL_SOURCE}/resources" DESTINATION ".")
@@ -913,7 +914,7 @@ elseif(NOT APPLE)
         ENDIF(BUILD_OPENCS)
 
         # Install global configuration files
-        INSTALL(FILES "${INSTALL_SOURCE}/settings-default.cfg" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
+        INSTALL(FILES "${INSTALL_SOURCE}/defaults.bin" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
         INSTALL(FILES "${INSTALL_SOURCE}/openmw.cfg.install" DESTINATION "${SYSCONFDIR}" RENAME "openmw.cfg" COMPONENT "openmw")
         INSTALL(FILES "${INSTALL_SOURCE}/resources/version" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
         INSTALL(FILES "${INSTALL_SOURCE}/gamecontrollerdb.txt" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")

apps/launcher/maindialog.cpp

@@ -424,11 +424,11 @@ bool Launcher::MainDialog::setupGraphicsSettings()
     mEngineSettings.clear();
 
     // Create the settings manager and load default settings file
-    const std::string localDefault = (mCfgMgr.getLocalPath() / "settings-default.cfg").string();
-    const std::string globalDefault = (mCfgMgr.getGlobalPath() / "settings-default.cfg").string();
+    const std::string localDefault = (mCfgMgr.getLocalPath() / "defaults.bin").string();
+    const std::string globalDefault = (mCfgMgr.getGlobalPath() / "defaults.bin").string();
     std::string defaultPath;
 
-    // Prefer the settings-default.cfg in the current directory.
+    // Prefer the defaults.bin in the current directory.
     if (boost::filesystem::exists(localDefault))
         defaultPath = localDefault;
     else if (boost::filesystem::exists(globalDefault))
@@ -436,7 +436,7 @@ bool Launcher::MainDialog::setupGraphicsSettings()
     // Something's very wrong if we can't find the file at all.
     else {
         cfgError(tr("Error reading OpenMW configuration file"),
-                 tr("<br><b>Could not find settings-default.cfg</b><br><br> \
+                 tr("<br><b>Could not find defaults.bin</b><br><br> \
                      The problem may be due to an incomplete installation of OpenMW.<br> \
                      Reinstalling OpenMW may resolve the problem."));
         return false;
@@ -447,7 +447,7 @@ bool Launcher::MainDialog::setupGraphicsSettings()
         mEngineSettings.loadDefault(defaultPath);
     }
     catch (std::exception& e) {
-        std::string msg = std::string("<br><b>Error reading settings-default.cfg</b><br><br>") + e.what();
+        std::string msg = std::string("<br><b>Error reading defaults.bin</b><br><br>") + e.what();
         cfgError(tr("Error reading OpenMW configuration file"), tr(msg.c_str()));
         return false;
     }

apps/openmw/CMakeLists.txt

@@ -198,7 +198,7 @@ if(APPLE)
 
     add_subdirectory(../../files/ ${CMAKE_CURRENT_BINARY_DIR}/files)
 
-    configure_file("${OpenMW_BINARY_DIR}/settings-default.cfg" ${BUNDLE_RESOURCES_DIR} COPYONLY)
+    configure_file("${OpenMW_BINARY_DIR}/defaults.bin" ${BUNDLE_RESOURCES_DIR} COPYONLY)
     configure_file("${OpenMW_BINARY_DIR}/openmw.cfg" ${BUNDLE_RESOURCES_DIR} COPYONLY)
     configure_file("${OpenMW_BINARY_DIR}/gamecontrollerdb.txt" ${BUNDLE_RESOURCES_DIR} COPYONLY)
 

apps/openmw/engine.cpp

@@ -478,8 +478,8 @@ void OMW::Engine::setSkipMenu (bool skipMenu, bool newGame)
 std::string OMW::Engine::loadSettings (Settings::Manager & settings)
 {
     // Create the settings manager and load default settings file
-    const std::string localdefault = (mCfgMgr.getLocalPath() / "settings-default.cfg").string();
-    const std::string globaldefault = (mCfgMgr.getGlobalPath() / "settings-default.cfg").string();
+    const std::string localdefault = (mCfgMgr.getLocalPath() / "defaults.bin").string();
+    const std::string globaldefault = (mCfgMgr.getGlobalPath() / "defaults.bin").string();
 
     // prefer local
     if (boost::filesystem::exists(localdefault))
@@ -487,7 +487,7 @@ std::string OMW::Engine::loadSettings (Settings::Manager & settings)
     else if (boost::filesystem::exists(globaldefault))
         settings.loadDefault(globaldefault);
     else
-        throw std::runtime_error ("No default settings file found! Make sure the file \"settings-default.cfg\" was properly installed.");
+        throw std::runtime_error ("No default settings file found! Make sure the file \"defaults.bin\" was properly installed.");
 
     // load user settings if they exist
     const std::string settingspath = (mCfgMgr.getUserConfigPath() / "settings.cfg").string();

cmake/OpenMWMacros.cmake

@@ -199,6 +199,18 @@ macro (configure_resource_file source_path destination_dir_base dest_path_relati
 	endif (multi_config)
 endmacro (configure_resource_file)
 
+macro (pack_resource_file source_path destination_dir_base dest_path_relative)
+    get_generator_is_multi_config(multi_config)
+    if (multi_config)
+        foreach(cfgtype ${CMAKE_CONFIGURATION_TYPES})
+            execute_process(COMMAND ${CMAKE_COMMAND} "-DINPUT_FILE=${source_path}" "-DOUTPUT_FILE=${destination_dir_base}/${cfgtype}/${dest_path_relative}" -P "${CMAKE_SOURCE_DIR}/cmake/base64.cmake")
+        endforeach(cfgtype)
+    else (multi_config)
+        execute_process(COMMAND ${CMAKE_COMMAND} "-DINPUT_FILE=${source_path}" "-DOUTPUT_FILE=${destination_dir_base}/${dest_path_relative}" -P "${CMAKE_SOURCE_DIR}/cmake/base64.cmake")
+    endif (multi_config)
+    set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${source_path}")
+endmacro (pack_resource_file)
+
 macro (copy_all_resource_files source_dir destination_dir_base destination_dir_relative files)
 	foreach (f ${files})
 		get_filename_component(filename ${f} NAME)

cmake/base64.cmake

@@ -0,0 +1,74 @@
+# math(EXPR "...") can't parse hex until 3.13
+cmake_minimum_required(VERSION 3.13)
+
+if (NOT DEFINED INPUT_FILE)
+    message(STATUS "Usage: cmake -DINPUT_FILE=\"infile.ext\" -DOUTPUT_FILE=\"out.txt\" -P base64.cmake")
+    message(FATAL_ERROR "INPUT_FILE not specified")
+endif()
+
+if (NOT DEFINED OUTPUT_FILE)
+    message(STATUS "Usage: cmake -DINPUT_FILE=\"infile.ext\" -DOUTPUT_FILE=\"out.txt\" -P base64.cmake")
+    message(FATAL_ERROR "OUTPUT_FILE not specified")
+endif()
+
+if (NOT EXISTS ${INPUT_FILE})
+    message(FATAL_ERROR "INPUT_FILE ${INPUT_FILE} does not exist")
+endif()
+
+set(lut "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/")
+
+file(READ "${INPUT_FILE}" hexContent HEX)
+
+set(base64Content "")
+while(TRUE)
+    string(LENGTH "${hexContent}" tailLength)
+    if (tailLength LESS 1)
+        break()
+    endif()
+
+    string(SUBSTRING "${hexContent}" 0 6 head)
+    # base64 works on three-byte chunks. Pad.
+    string(LENGTH "${head}" headLength)
+    if (headLength LESS 6)
+        set(hexContent "")
+        math(EXPR padSize "6 - ${headLength}")
+        set(pad "")
+        foreach(i RANGE 1 ${padSize})
+            string(APPEND pad "0")
+        endforeach()
+        string(APPEND head "${pad}")
+    else()
+        string(SUBSTRING "${hexContent}" 6 -1 hexContent)
+        set(padSize 0)   
+    endif()
+
+    # get six-bit slices
+    math(EXPR first "0x${head} >> 18")
+    math(EXPR second "(0x${head} & 0x3F000) >> 12")
+    math(EXPR third "(0x${head} & 0xFC0) >> 6")
+    math(EXPR fourth "0x${head} & 0x3F")
+
+    # first two characters are always needed to represent the first byte
+    string(SUBSTRING "${lut}" ${first} 1 char)
+    string(APPEND base64Content "${char}")
+    string(SUBSTRING "${lut}" ${second} 1 char)
+    string(APPEND base64Content "${char}")
+
+    # if there's no second byte, pad with =
+    if (NOT padSize EQUAL 4)
+        string(SUBSTRING "${lut}" ${third} 1 char)
+        string(APPEND base64Content "${char}")
+    else()
+        string(APPEND base64Content "=")
+    endif()
+
+    # if there's no third byte, pad with =
+    if (padSize EQUAL 0)
+        string(SUBSTRING "${lut}" ${fourth} 1 char)
+        string(APPEND base64Content "${char}")
+    else()
+        string(APPEND base64Content "=")
+    endif()
+endwhile()
+
+file(WRITE "${OUTPUT_FILE}" "${base64Content}")

components/CMakeLists.txt

@@ -251,6 +251,8 @@ target_link_libraries(components
     RecastNavigation::DebugUtils
     RecastNavigation::Detour
     RecastNavigation::Recast
+
+    Base64
     )
 
 target_link_libraries(components ${BULLET_LIBRARIES})

components/settings/parser.cpp

@@ -7,19 +7,36 @@
 
 #include <boost/filesystem/fstream.hpp>
 
-void Settings::SettingsFileParser::loadSettingsFile(const std::string& file, CategorySettingValueMap& settings)
+#include <Base64.h>
+
+void Settings::SettingsFileParser::loadSettingsFile(const std::string& file, CategorySettingValueMap& settings, bool base64Encoded)
 {
     mFile = file;
-    boost::filesystem::ifstream stream;
-    stream.open(boost::filesystem::path(file));
+    boost::filesystem::ifstream fstream;
+    fstream.open(boost::filesystem::path(file));
+    auto stream = std::ref<std::istream>(fstream);
+
+    std::istringstream decodedStream;
+    if (base64Encoded)
+    {
+        std::string base64String(std::istreambuf_iterator<char>(fstream), {});
+        std::string decodedString;
+        auto result = Base64::Base64::Decode(base64String, decodedString);
+        if (!result.empty())
+            fail("Could not decode Base64 file: " + result);
+        // Move won't do anything until C++20, but won't hurt to do it anyway.
+        decodedStream.str(std::move(decodedString));
+        stream = std::ref<std::istream>(decodedStream);
+    }
+
     Log(Debug::Info) << "Loading settings file: " << file;
     std::string currentCategory;
     mLine = 0;
-    while (!stream.eof() && !stream.fail())
+    while (!stream.get().eof() && !stream.get().fail())
     {
         ++mLine;
         std::string line;
-        std::getline( stream, line );
+        std::getline( stream.get(), line );
 
         size_t i = 0;
         if (!skipWhiteSpace(i, line))
@@ -255,7 +272,7 @@ void Settings::SettingsFileParser::saveSettingsFile(const std::string& file, con
         ostream << "# This is the OpenMW user 'settings.cfg' file.  This file only contains" << std::endl;
         ostream << "# explicitly changed settings.  If you would like to revert a setting" << std::endl;
         ostream << "# to its default, simply remove it from this file.  For available" << std::endl;
-        ostream << "# settings, see the file 'settings-default.cfg' or the documentation at:" << std::endl;
+        ostream << "# settings, see the file 'files/settings-default.cfg' in our source repo or the documentation at:" << std::endl;
         ostream << "#" << std::endl;
         ostream << "#   https://openmw.readthedocs.io/en/master/reference/modding/settings/index.html" << std::endl;
     }

components/settings/parser.hpp

@@ -10,7 +10,7 @@ namespace Settings
     class SettingsFileParser
     {
     public:
-        void loadSettingsFile(const std::string& file, CategorySettingValueMap& settings);
+        void loadSettingsFile(const std::string& file, CategorySettingValueMap& settings, bool base64encoded = false);
 
         void saveSettingsFile(const std::string& file, const CategorySettingValueMap& settings);
 

components/settings/settings.cpp

@@ -22,7 +22,7 @@ void Manager::clear()
 void Manager::loadDefault(const std::string &file)
 {
     SettingsFileParser parser;
-    parser.loadSettingsFile(file, mDefaultSettings);
+    parser.loadSettingsFile(file, mDefaultSettings, true);
 }
 
 void Manager::loadUser(const std::string &file)
@@ -49,7 +49,7 @@ std::string Manager::getString(const std::string &setting, const std::string &ca
         return it->second;
 
     throw std::runtime_error(std::string("Trying to retrieve a non-existing setting: ") + setting
-                             + ".\nMake sure the settings-default.cfg file was properly installed.");
+                             + ".\nMake sure the defaults.bin file was properly installed.");
 }
 
 float Manager::getFloat (const std::string& setting, const std::string& category)

docs/source/reference/modding/settings/index.rst

@@ -8,6 +8,14 @@ If you are familiar with ``.ini`` tweaks in Morrowind or the other games, this w
 All settings described in this section are changed in ``settings.cfg``, located in your OpenMW user directory.
 See :doc:`../paths` for this location.
 
+When creating a new game based on the OpenMW engine, it may be desirable to change the default settings - the defaults are chosen for compatibility with Morrowind.
+This can be done by editing ``defaults.bin`` in the OpenMW installation directory without rebuilding OpenMW itself.
+If you're using a custom fork of OpenMW, ``files/settings-default.cfg`` in the source repository should be edited instead.
+To edit ``defaults.bin``, base64 decode it, make any changes, and then base64 encode it again.
+
+If you feel a need to edit the default settings for any other reason than when creating a new OpenMW-based game, you should not.
+We may be able to accommodate your desired workflow some other way if you make a feature request.
+
 Changing Settings
 #################
 
@@ -25,8 +33,10 @@ Changing Settings
 	Then to the line above, type ``[GUI]``, as the tooltip delay setting comes from the "GUI Settings" section.
 
 Although this guide attempts to be comprehensive and up to date,
-you will always be able to find the full list of settings available and their default values in ``settings-default.cfg``
-in your main OpenMW installation directory.
+you will always be able to find the full list of settings available and their default values in ``settings-default.cfg``,
+available in the ``files`` directory of our source repo, or by base64 decoding ``defaults.bin`` in your main OpenMW installation directory.
+This has changed compared to previous versions of OpenMW as more users were confused by the existence of a file they weren't supposed to edit
+than were helped by the existence of a file listing settings they could edit in a different file.
 The ranges included with each setting are the physically possible ranges, not recommendations.
 
 .. warning::

extern/Base64/Base64.h

@@ -0,0 +1,124 @@
+#ifndef _MACARON_BASE64_H_
+#define _MACARON_BASE64_H_
+
+/**
+ * The MIT License (MIT)
+ * Copyright (c) 2016 tomykaira
+ *
+ * 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 <string>
+
+namespace Base64 {
+
+class Base64 {
+ public:
+
+  static std::string Encode(const std::string data) {
+    static constexpr char sEncodingTable[] = {
+      'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+      'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+      'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
+      'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+      'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+      'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+      'w', 'x', 'y', 'z', '0', '1', '2', '3',
+      '4', '5', '6', '7', '8', '9', '+', '/'
+    };
+
+    size_t in_len = data.size();
+    size_t out_len = 4 * ((in_len + 2) / 3);
+    std::string ret(out_len, '\0');
+    size_t i;
+    char *p = ret.data();
+
+    for (i = 0; i < in_len - 2; i += 3) {
+      *p++ = sEncodingTable[(data[i] >> 2) & 0x3F];
+      *p++ = sEncodingTable[((data[i] & 0x3) << 4) | ((int) (data[i + 1] & 0xF0) >> 4)];
+      *p++ = sEncodingTable[((data[i + 1] & 0xF) << 2) | ((int) (data[i + 2] & 0xC0) >> 6)];
+      *p++ = sEncodingTable[data[i + 2] & 0x3F];
+    }
+    if (i < in_len) {
+      *p++ = sEncodingTable[(data[i] >> 2) & 0x3F];
+      if (i == (in_len - 1)) {
+        *p++ = sEncodingTable[((data[i] & 0x3) << 4)];
+        *p++ = '=';
+      }
+      else {
+        *p++ = sEncodingTable[((data[i] & 0x3) << 4) | ((int) (data[i + 1] & 0xF0) >> 4)];
+        *p++ = sEncodingTable[((data[i + 1] & 0xF) << 2)];
+      }
+      *p++ = '=';
+    }
+
+    return ret;
+  }
+
+  static std::string Decode(const std::string& input, std::string& out) {
+    static constexpr unsigned char kDecodingTable[] = {
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63,
+      52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64,
+      64,  0,  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, 64, 64, 64, 64, 64,
+      64, 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, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
+    };
+
+    size_t in_len = input.size();
+    if (in_len % 4 != 0) return "Input data size is not a multiple of 4";
+
+    size_t out_len = in_len / 4 * 3;
+    if (input[in_len - 1] == '=') out_len--;
+    if (input[in_len - 2] == '=') out_len--;
+
+    out.resize(out_len);
+
+    for (size_t i = 0, j = 0; i < in_len;) {
+      uint32_t a = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+      uint32_t b = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+      uint32_t c = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+      uint32_t d = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+
+      uint32_t triple = (a << 3 * 6) + (b << 2 * 6) + (c << 1 * 6) + (d << 0 * 6);
+
+      if (j < out_len) out[j++] = (triple >> 2 * 8) & 0xFF;
+      if (j < out_len) out[j++] = (triple >> 1 * 8) & 0xFF;
+      if (j < out_len) out[j++] = (triple >> 0 * 8) & 0xFF;
+    }
+
+    return "";
+  }
+
+};
+
+}
+
+#endif /* _MACARON_BASE64_H_ */

extern/Base64/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_library(Base64 INTERFACE)
+target_include_directories(Base64 INTERFACE .)

files/settings-default.cfg

@@ -1,6 +1,7 @@
-# WARNING: If this file is named settings-default.cfg, then editing
-# this file might have no effect, as these settings may be overwritten
-# by your user settings.cfg file (see documentation for its location).
+# WARNING: If this file is named settings-default.cfg or was generated
+# from defaults.bin, then editing this file might have no effect, as
+# these settings may be overwritten by your user settings.cfg file
+# (see documentation for its location).
 #
 # This file provides minimal documentation for each setting, and
 # ranges of recommended values.  For detailed explanations of the