123 lines
3.7 KiB
Lua
123 lines
3.7 KiB
Lua
--[[
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Automatically look for a fonts directory to use with `sub-fonts-dir`.
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This mpv Lua script will automatically use the `sub-fonts-dir` option (to
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override the default `~~/fonts` location) if it find a `Fonts` directory
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alongside the currently playing file. (The name of the directory is
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matched case-insensitively.)
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USAGE:
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Simply drop this script in your scripts configuration directory (usually
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`~/.config/mpv/scripts/`).
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REQUIREMENTS:
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This script requires a version of mpv that includes the `sub-fonts-dir`
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option.
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NOTES:
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- Any `--sub-fonts-dir` option passed on the command-line will override
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this script.
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- When going through a playlist, `sub-fonts-dir` will be dynamically
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updated for each individual file.
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- This script will output some additional information on higher verbosity
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levels (`-v`). To increase the verbosity for this script only, use
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`--msg-level=sub_fonts_dir_auto=v` (or `=debug` for more output).
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AUTHOR:
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Frédéric Brière (fbriere@fbriere.net)
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Licensed under the GNU General Public License, version 2 or later.
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--]]
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local utils = require 'mp.utils'
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local msg = require 'mp.msg'
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-- msg.trace() was added in 0.28.0 -- define it ourselves if it's missing
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if msg.trace == nil then
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msg.trace = function(...) return mp.log("trace", ...) end
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end
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-- Directory name we are looking for (case-insensitive)
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local FONTS_DIR_NAME = "Fonts"
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-- Option name that we want to set
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local OPTION_NAME = "sub-fonts-dir"
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-- Make sure this option is available in this version of mpv
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do
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local _, err = mp.get_property(OPTION_NAME)
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if err then
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msg.error(string.format("This version of mpv does not support the %s option", OPTION_NAME))
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return
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end
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end
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-- Whether a path is a directory
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local function isdir(path)
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local meta, meta_error = utils.file_info(path)
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if meta and meta.is_dir then
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return true
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end
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end
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-- Set an option's value for this file, without overriding the command-line
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local function set_option(name, value)
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if not mp.get_property_bool(string.format("option-info/%s/set-from-commandline", name)) then
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msg.verbose(string.format("Setting %s to %q", name, value))
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mp.set_property(string.format("file-local-options/%s", name), value)
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else
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msg.debug(string.format("Option %s was set on command-line -- leaving it as-is", name))
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end
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end
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-- Find a "Fonts" directory under a single path
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local function find_fonts_dir(path)
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local fonts_path = utils.join_path(path, FONTS_DIR_NAME)
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local meta, meta_error = utils.file_info(fonts_path)
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if meta and meta.is_dir then
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msg.trace("Match found")
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return fonts_path
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else
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fonts_path = utils.join_path(path, FONTS_DIR_NAME:lower())
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local fmeta, fmeta_error = utils.file_info(fonts_path)
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if fmeta and fmeta.is_dir then
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msg.trace("Match found")
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return fonts_path
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end
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end
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msg.trace("No match found")
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end
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-- "on_load" hook callback for when a file is about to be loaded.
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local function on_load()
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local path = mp.get_property("path")
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if isdir(path) then
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msg.debug("Playing 'file' is actually a directory -- skipping")
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return
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end
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local path_dir = utils.split_path(path)
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-- Cosmetic nitpicking: That trailing "/" just looks annoying to me
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path_dir = path_dir:gsub("(.)/+$", "%1")
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msg.debug(string.format("Searching %q for fonts directory", path_dir))
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local fonts_dir = find_fonts_dir(path_dir)
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if fonts_dir then
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msg.debug("Found fonts directory:", fonts_dir)
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set_option(OPTION_NAME, fonts_dir)
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end
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end
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mp.add_hook("on_load", 50, on_load)
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