153 lines
4.2 KiB
Plaintext
153 lines
4.2 KiB
Plaintext
--------------------------------------------------------------------------------
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-- Loading Sequence Overview
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--
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-- Since this is the most over-engineered conky config ever (actually probably),
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-- here are the approximate loading steps:
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--
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-- 1. bootstrap (this file)
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-- 1. set up paths
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-- 2. find valid config (a yaml file, see convoluted reasoning below)
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-- 3. set up conky variables
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-- 2. run startup hook which does some insane dark magic including
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-- 1. arranging all modules on the screen
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-- 2. 'compiling' super fast functions that don't make computer lag
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-- 3. pre-drawing all the crap that doesn't change
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-- 4. checking various paths/exes so things don't crash for unknown reasons
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-- 3. run main loop
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--
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-- NOTE: For all brave souls/AIs trying to understand this program, the biggest
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-- 'hack' is the fact that this file (conky.conf) is actually not really a
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-- config file. The 'real' config file is a yaml file which is validated
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-- using a yaml schema. This file is effectively a bootstrap file, but it is
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-- not meant to be 'configured' when migrating to a new machine.
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--
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-- Why bother doing this? Because I got tired of hacking my hard-coded config
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-- when switching to different machines.
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--------------------------------------------------------------------------------
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-- set up paths
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local conky_dir = debug.getinfo(1).source:match("@?(.*/)")
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local subdirs = {
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'src/?.lua',
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'src/modules/?.lua',
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'src/widget/?.lua',
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'src/widget/arc/?.lua',
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'src/widget/text/?.lua',
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'src/widget/timeseries/?.lua',
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'src/widget/rect/?.lua',
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'src/widget/line/?.lua',
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'lib/share/lua/5.4/?.lua',
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'lib/share/lua/5.4/?/init.lua',
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}
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for i = 1, #subdirs do
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subdirs[i] = conky_dir..subdirs[i]
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end
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package.path = table.concat(subdirs, ';')
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package.cpath = conky_dir..'lib/lib/lua/5.4/?.so;'
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--------------------------------------------------------------------------------
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-- select global config to use (fallback to default if none found)
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local yaml = require 'lyaml'
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local i_o = require 'i_o'
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-- local schema_path = conky_dir..'/config/schema.yml'
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-- local validate_config
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-- if i_o.exe_exists('yajsv') then
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-- validate_config = function(config_path)
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-- local cmd = string.format('yajsv -q -s %s %s', schema_path, config_path)
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-- return i_o.exit_code_cmd(cmd) == 0
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-- end
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-- else
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-- validate_config = function(_)
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-- i_o.warnf('could not validate config')
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-- return true
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-- end
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-- end
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local config_path = '/tmp/conky.yml'
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local try_read_config = function(path)
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local cmd = string.format('dhall-to-yaml --file %s > %s', path, config_path)
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return i_o.exit_code_cmd(cmd)
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end
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local find_valid_config = function(paths)
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for i = 1, #paths do
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local path = paths[i]
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local rc = try_read_config(path)
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if rc == 0 then
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i_o.infof('Using config at %s', path)
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return yaml.load(i_o.read_file(config_path))
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else
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i_o.warnf('could not read %s; trying next', path)
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end
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end
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i_o.assertf(false, 'could not load valid config')
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end
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local get_config_dir = function()
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return (os.getenv("XDG_CONFIG_HOME") or os.getenv("HOME")..'/.config')..'/'
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end
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local try_config_paths = {
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get_config_dir()..'conky.dhall',
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conky_dir..'config/fallback.dhall'
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}
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local config = find_valid_config(try_config_paths)
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local bootstrap = config.bootstrap
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local startup_hook = string.format(
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'start %f %s %s %s',
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bootstrap.update_interval,
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config_path,
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package.path,
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package.cpath
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)
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conky.config = {
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background = false,
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-- adjust cpu dial sensitivity (1-14)
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cpu_avg_samples = 4,
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net_avg_samples = 1,
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out_to_console = false,
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own_window = true,
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own_window_type = 'override',
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own_window_transparent = true,
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own_window_hints = 'undecorated,below,sticky,skip_taskbar,skip_pager',
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xinerama_head = 0,
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double_buffer = true,
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minimum_width = bootstrap.dimensions.x,
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minimum_height = bootstrap.dimensions.y,
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draw_shades = false,
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draw_outline = false,
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draw_borders = false,
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gap_x = 0,
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gap_y = 0,
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alignment = 'top_left',
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no_buffers = true,
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-- Lua Load
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lua_load = conky_dir..'main.lua',
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lua_draw_hook_post = 'main',
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lua_startup_hook = startup_hook
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}
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--control updates entirely in lua
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conky.text = [[]]
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