misc.lua: add this script

DOCS/interface-changes/misc.txt

@@ -0,0 +1 @@
+add `--load-misc` option

DOCS/man/misc.rst

@@ -0,0 +1,16 @@
+MISC
+====
+
+This script provides miscellaneous script bindings. It can be disabled using the
+``--load-misc=no`` option.
+
+Script bindings
+---------------
+
+``edit-config-file``
+    Open ``mpv.conf`` in the system text editor, creating it if it doesn't
+    already exist.
+
+``edit-input-conf``
+    Open ``input.conf`` in the system text editor, creating it if it doesn't
+    already exist.

DOCS/man/mpv.rst

@@ -1547,6 +1547,8 @@ works like in older mpv releases:
 
 .. include:: positioning.rst
 
+.. include:: misc.rst
+
 .. include:: lua.rst
 
 .. include:: javascript.rst

DOCS/man/options.rst

@@ -1070,6 +1070,10 @@ Program Behavior
     Enable the builtin script that provides various keybindings to pan videos
     and images (default: yes).
 
+``--load-misc=<yes|no>``
+    Enable the builtin script that provides miscellaneous script bindings
+    (default: yes).
+
 ``--player-operation-mode=<cplayer|pseudo-gui>``
     For enabling "pseudo GUI mode", which means that the defaults for some
     options are changed. This option should not normally be used directly, but

options/options.c

@@ -556,6 +556,7 @@ static const m_option_t mp_opts[] = {
     {"load-select", OPT_BOOL(lua_load_select), .flags = UPDATE_BUILTIN_SCRIPTS},
     {"load-positioning", OPT_BOOL(lua_load_positioning), .flags = UPDATE_BUILTIN_SCRIPTS},
     {"load-commands", OPT_BOOL(lua_load_commands), .flags = UPDATE_BUILTIN_SCRIPTS},
+    {"load-misc", OPT_BOOL(loa_load_misc), .flags = UPDATE_BUILTIN_SCRIPTS},
 #endif
 
 // ------------------------- stream options --------------------
@@ -990,6 +991,7 @@ static const struct MPOpts mp_default_opts = {
     .lua_load_select = true,
     .lua_load_positioning = true,
     .lua_load_commands = true,
+    .loa_load_misc = true,
 #endif
     .auto_load_scripts = true,
     .loop_times = 1,

options/options.h

@@ -176,6 +176,7 @@ typedef struct MPOpts {
     bool lua_load_select;
     bool lua_load_positioning;
     bool lua_load_commands;
+    bool loa_load_misc;
 
     bool auto_load_scripts;
 

player/core.h

@@ -444,7 +444,7 @@ typedef struct MPContext {
 
     struct mp_ipc_ctx *ipc_ctx;
 
-    int64_t builtin_script_ids[8];
+    int64_t builtin_script_ids[9];
 
     mp_mutex abort_lock;
 

player/lua.c

@@ -90,6 +90,9 @@ static const char * const builtin_lua_scripts[][2] = {
     },
     {"@commands.lua",
 #   include "player/lua/commands.lua.inc"
+    },
+    {"@misc.lua",
+#   include "player/lua/misc.lua.inc"
     },
     {0}
 };

player/lua/meson.build

@@ -1,7 +1,7 @@
 lua_files = ['defaults.lua', 'assdraw.lua', 'options.lua', 'osc.lua',
              'ytdl_hook.lua', 'stats.lua', 'console.lua', 'auto_profiles.lua',
              'input.lua', 'fzy.lua', 'select.lua', 'positioning.lua',
-             'commands.lua']
+             'commands.lua', 'misc.lua']
 foreach file: lua_files
     lua_file = custom_target(file,
         input: file,

player/lua/misc.lua

@@ -0,0 +1,82 @@
+--[[
+This file is part of mpv.
+
+mpv is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+mpv 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
+]]
+
+local utils = require "mp.utils"
+
+local default_config_file = [[# https://mpv.io/manual/master/#configuration-files
+# https://mpv.io/manual/master/#options
+
+]]
+
+local default_input_conf = [[# https://mpv.io/manual/master/#command-interface
+
+]]
+
+local function show_error(message)
+    mp.msg.error(message)
+    if mp.get_property_native("vo-configured") then
+        mp.osd_message(message)
+    end
+end
+
+local function edit_config_file(filename, initial_contents)
+    local path = mp.find_config_file(filename)
+
+    if not path then
+        path = mp.command_native({"expand-path", "~~/" .. filename})
+        local file_handle, error_message = io.open(path, "w")
+
+        if not file_handle then
+            show_error(error_message)
+            return
+        end
+
+        file_handle:write(initial_contents)
+        file_handle:close()
+    end
+
+    local platform = mp.get_property("platform")
+    local args
+    if platform == "windows" then
+        args = {"rundll32", "url.dll,FileProtocolHandler", path}
+    elseif platform == "darwin" then
+        args = {"open", path}
+    else
+        args = {"xdg-open", path}
+    end
+
+    local result = mp.command_native({
+        name = "subprocess",
+        playback_only = false,
+        args = args,
+    })
+
+    if result.status < 0 then
+        show_error("Subprocess error: " .. result.error_string)
+    elseif result.status > 0 then
+        show_error(utils.to_string(args) .. " failed with code " ..
+                   result.status)
+    end
+end
+
+mp.add_key_binding(nil, "edit-config-file", function ()
+    edit_config_file("mpv.conf", default_config_file)
+end)
+
+mp.add_key_binding(nil, "edit-input-conf", function ()
+    edit_config_file("input.conf", default_input_conf)
+end)

player/lua/select.lua

@@ -620,6 +620,8 @@ mp.add_key_binding(nil, "menu", function ()
         {"Watch later", "script-binding select/select-watch-later", true},
         {"Stats for nerds", "script-binding stats/display-page-1-toggle", true},
         {"File info", "script-binding stats/display-page-5-toggle", mp.get_property("filename")},
+        {"Edit config file", "script-binding misc/edit-config-file", true},
+        {"Edit key bindings", "script-binding misc/edit-input-conf", true},
         {"Help", "script-binding stats/display-page-4-toggle", true},
     }
 

player/scripting.c

@@ -269,6 +269,7 @@ void mp_load_builtin_scripts(struct MPContext *mpctx)
     load_builtin_script(mpctx, 5, mpctx->opts->lua_load_select, "@select.lua");
     load_builtin_script(mpctx, 6, mpctx->opts->lua_load_positioning, "@positioning.lua");
     load_builtin_script(mpctx, 7, mpctx->opts->lua_load_commands, "@commands.lua");
+    load_builtin_script(mpctx, 8, mpctx->opts->loa_load_misc, "@misc.lua");
 }
 
 bool mp_load_scripts(struct MPContext *mpctx)