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#! /usr/bin/lua
local usage = [[
Usage: convert.lua old_conkyrc [new_conkyrc]
Tries to convert conkyrc from the old v1.x format to the new, lua-based format.
Keep in mind that there is no guarantee that the output will work correctly
with conky, or that it will be able to convert every conkyrc. However, it
should provide a good starting point.
Although you can use this script with only 1 arg and let it overwrite the old
config, it's suggested to use 2 args so that the new config is written in a new
file (so that you have backup if something went wrong).
Optional: Install dos2unix. We will attempt to use this if it is available
because Conky configs downloaded from Internet sometimes are created on DOS/Windows
machines with different line endings than Conky configs created on Unix/Linux.
For more information about the new format, read the wiki page
<https://github.com/brndnmtthws/conky/wiki>
]];
local function quote(s)
if not s:find("[\n'\\]") then
return "'" .. s .. "'";
end;
local q = '';
while s:find(']' .. q .. ']', 1, true) do
q = q .. '=';
end;
return string.format('[%s[\n%s]%s]', q, s, q);
end;
local bool_setting = {
background = true, disable_auto_reload = true, double_buffer = true, draw_borders = true,
draw_graph_borders = true, draw_outline = true, draw_shades = true, extra_newline = true,
format_human_readable = true, no_buffers = true, out_to_console = true,
out_to_wayland = true,
out_to_ncurses = true, out_to_stderr = true, out_to_x = true, override_utf8_locale = true,
own_window = true, own_window_argb_visual = true, own_window_transparent = true,
short_units = true, show_graph_range = true, show_graph_scale = true,
times_in_seconds = true, top_cpu_separate = true, uppercase = true, use_xft = true,
draw_blended = true, forced_redraw = true
};
local num_setting = {
border_inner_margin = true, border_outer_margin = true, border_width = true,
cpu_avg_samples = true, diskio_avg_samples = true, gap_x = true, gap_y = true,
imlib_cache_flush_interval = true, imlib_cache_size = true,
max_port_monitor_connections = true, max_text_width = true, max_user_text = true,
maximum_width = true, mpd_port = true, music_player_interval = true, net_avg_samples = true,
own_window_argb_value = true, pad_percents = true, stippled_borders = true,
text_buffer_size = true, top_name_width = true, total_run_times = true,
update_interval = true, update_interval_on_battery = true, xftalpha = true,
xinerama_head = true,
};
local split_setting = {
default_bar_size = true, default_gauge_size = true, default_graph_size = true,
minimum_size = true
};
local colour_setting = {
color0 = true, color1 = true, color2 = true, color3 = true, color4 = true, color5 = true,
color6 = true, color7 = true, color8 = true, color9 = true, default_color = true,
default_outline_color = true, default_shade_color = true, own_window_colour = true
};
local function alignment_map(value)
local map = { m = 'middle', t = 'top', b = 'bottom', r = 'right', l = 'left' };
if map[value] == nil then
return value;
else
return map[value];
end;
end;
local function handle(setting, value)
setting = setting:lower();
if setting == '' then
return '';
end;
if split_setting[setting] then
local x, y = value:match('^(%S+)%s*(%S*)$');
local ret = setting:gsub('_size', '_width = ') .. x .. ',';
if y ~= '' then
ret = ret .. ' ' .. setting:gsub('_size', '_height = ') .. y .. ',';
end;
return '\t' .. ret;
end;
if bool_setting[setting] then
value = value:lower();
if value == 'yes' or value == 'true' or value == '1' or value == '' then
value = 'true';
else
value = 'false';
end;
elseif not num_setting[setting] then
if setting == 'alignment' and value:len() == 2 then
value = alignment_map(value:sub(1,1)) .. '_' .. alignment_map(value:sub(2,2));
elseif colour_setting[setting] and value:match('^[0-9a-fA-F]+$') then
value = '#' .. value;
elseif setting == 'xftfont' then
setting = 'font';
end;
value = quote(value);
end;
return '\t' .. setting .. ' = ' .. value .. ',';
end;
local function convert(s)
local setting, comment = s:match('^([^#]*)#?(.*)\n$');
if comment ~= '' then
comment = '--' .. comment;
end;
comment = comment .. '\n';
return handle(setting:match('^%s*(%S*)%s*(.-)%s*$')) .. comment;
end;
local input;
local output;
if conky == nil then --> standalone program
-- 1 arg: arg is input and outputfile
-- 2 args: 1st is inputfile, 2nd is outputfile
-- 0, 3 or more args: print usage to STDERR and quit
if #arg == 1 or #arg == 2 then
if os.execute('command -v dos2unix 2>&1 >/dev/null') == 0 then
os.execute('dos2unix ' .. arg[1]);
end
input = io.input(arg[1]);
else
io.stderr:write(usage);
return;
end;
else
-- we are called from conky, the filename is the first argument
input = io.open(..., 'r');
end;
local config = input:read('*a');
input:close();
local settings, text = config:match('^(.-)TEXT\n(.*)$');
local converted = 'conky.config = {\n' .. settings:gsub('.-\n', convert) .. '};\n\nconky.text = ' ..
quote(text) .. ';\n';
if conky == nil then
if #arg == 2 then
output = io.output(arg[2]);
else
output = io.output(arg[1]);
end
output:write(converted);
output:close();
else
return assert(load(converted, 'converted config'));
end;
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