settings: Add update/getPersistent/isIgnored methods

Add interfaces::Node methods to give GUI finer grained control over
settings.json file. Update method is used to write settings to the file,
getPersistent and isIgnored methods are used to find out about settings
file and command line option interactions.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/util/settings.h b/src/util/settings.h
index 261a0a032f..e97158dc09 100644
--- a/src/util/settings.h
+++ b/src/util/settings.h
@@ -55,12 +55,18 @@ bool WriteSettings(const fs::path& path,
 //! @param ignore_default_section_config - ignore values in the default section
 //!                                        of the config file (part before any
 //!                                        [section] keywords)
+//! @param ignore_nonpersistent - ignore non-persistent settings values (forced
+//!                               settings values and values specified on the
+//!                               command line). Only return settings in the
+//!                               read-only config and read-write settings
+//!                               files.
 //! @param get_chain_name - enable special backwards compatible behavior
 //!                         for GetChainName
 SettingsValue GetSetting(const Settings& settings,
     const std::string& section,
     const std::string& name,
     bool ignore_default_section_config,
+    bool ignore_nonpersistent,
     bool get_chain_name);
 
 //! Get combined setting value similar to GetSetting(), except if setting was