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diff --git a/src/lnav_config.hh b/src/lnav_config.hh
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+/**
+ * Copyright (c) 2013, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @file lnav_config.hh
+ */
+
+#ifndef lnav_config_hh
+#define lnav_config_hh
+
+#include <functional>
+#include <map>
+#include <set>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "archive_manager.cfg.hh"
+#include "base/file_range.hh"
+#include "base/lnav.console.hh"
+#include "base/result.h"
+#include "file_vtab.cfg.hh"
+#include "ghc/filesystem.hpp"
+#include "lnav_config_fwd.hh"
+#include "log_level.hh"
+#include "logfile.cfg.hh"
+#include "logfile_sub_source.cfg.hh"
+#include "styling.hh"
+#include "sysclip.cfg.hh"
+#include "tailer/tailer.looper.cfg.hh"
+#include "top_status_source.cfg.hh"
+
+/**
+ * Check if an experimental feature should be enabled by
+ * examining the LNAV_EXP environment variable.
+ *
+ * @param feature_name The feature name to check for in
+ *   the LNAV_EXP environment variable.
+ *
+ * @return True if the feature was mentioned in the env
+ *   var and should be enabled.
+ */
+bool check_experimental(const char* feature_name);
+
+/**
+ * Ensure that the '.lnav' directory exists.
+ */
+void ensure_dotlnav();
+
+bool install_from_git(const std::string& repo);
+bool update_installs_from_git();
+
+void install_extra_formats();
+
+struct key_command {
+    std::string kc_cmd;
+    std::string kc_alt_msg;
+};
+
+struct key_map {
+    std::map<std::string, key_command> km_seq_to_cmd;
+};
+
+struct _lnav_config {
+    top_status_source_cfg lc_top_status_cfg;
+    bool lc_ui_dim_text;
+    bool lc_ui_default_colors{true};
+    std::string lc_ui_keymap;
+    std::string lc_ui_theme;
+    std::unordered_map<std::string, key_map> lc_ui_keymaps;
+    std::map<std::string, std::string> lc_ui_key_overrides;
+    std::map<std::string, std::string> lc_global_vars;
+    std::map<std::string, lnav_theme> lc_ui_theme_defs;
+
+    key_map lc_active_keymap;
+
+    archive_manager::config lc_archive_manager;
+    file_vtab::config lc_file_vtab;
+    lnav::logfile::config lc_logfile;
+    tailer::config lc_tailer;
+    sysclip::config lc_sysclip;
+    logfile_sub_source_ns::config lc_log_source;
+};
+
+extern struct _lnav_config lnav_config;
+extern struct _lnav_config rollback_lnav_config;
+extern std::map<intern_string_t, source_location> lnav_config_locations;
+
+extern const struct json_path_container lnav_config_handlers;
+
+enum class config_file_type {
+    FORMAT,
+    CONFIG,
+};
+
+Result<config_file_type, std::string> detect_config_file_type(
+    const ghc::filesystem::path& path);
+
+void load_config(const std::vector<ghc::filesystem::path>& extra_paths,
+                 std::vector<lnav::console::user_message>& errors);
+
+void reset_config(const std::string& path);
+
+void reload_config(std::vector<lnav::console::user_message>& errors);
+
+std::string save_config();
+
+extern const char* DEFAULT_FORMAT_SCHEMA;
+extern const std::set<std::string> SUPPORTED_FORMAT_SCHEMAS;
+
+#endif