X-Git-Url: https://git.madduck.net/etc/awesome.git/blobdiff_plain/fc6e880da40668c6e9bd9da3786ff2fcae519c75:/helpers.lua..4c392a6d980af9c72052145c6a7a812c51e6ecee:/.config/awesome/lain/static/git-favicon.png diff --git a/helpers.lua b/helpers.lua deleted file mode 100644 index 4e5ce1f..0000000 --- a/helpers.lua +++ /dev/null @@ -1,169 +0,0 @@ - ---[[ - - Licensed under GNU General Public License v2 - * (c) 2013, Luke Bonham - ---]] - - -local easy_async = require("awful.spawn").easy_async -local timer = require("gears.timer") -local debug = require("debug") -local io = { lines = io.lines, - open = io.open } -local rawget = rawget -local table = { sort = table.sort } - --- Lain helper functions for internal use --- lain.helpers -local helpers = {} - -helpers.lain_dir = debug.getinfo(1, 'S').source:match[[^@(.*/).*$]] -helpers.icons_dir = helpers.lain_dir .. 'icons/' -helpers.scripts_dir = helpers.lain_dir .. 'scripts/' - --- {{{ Modules loader - -function helpers.wrequire(table, key) - local module = rawget(table, key) - return module or require(table._NAME .. '.' .. key) -end - --- }}} - --- {{{ File operations - --- see if the file exists and is readable -function helpers.file_exists(file) - local f = io.open(file) - if f then - local s = f:read() - f:close() - f = s - end - return f ~= nil -end - --- get all lines from a file, returns an empty --- list/table if the file does not exist -function helpers.lines_from(file) - if not helpers.file_exists(file) then return {} end - local lines = {} - for line in io.lines(file) do - lines[#lines + 1] = line - end - return lines -end - --- match all lines from a file, returns an empty --- list/table if the file or match does not exist -function helpers.lines_match(regexp, file) - local lines = {} - for index,line in pairs(helpers.lines_from(file)) do - if string.match(line, regexp) then - lines[index] = line - end - end - return lines -end - --- get first line of a file, return nil if --- the file does not exist -function helpers.first_line(file) - return helpers.lines_from(file)[1] -end - --- get first non empty line from a file, --- returns nil otherwise -function helpers.first_nonempty_line(file) - for k,v in pairs(helpers.lines_from(file)) do - if #v then return v end - end - return nil -end - --- }}} - --- {{{ Timer maker - -helpers.timer_table = {} - -function helpers.newtimer(name, timeout, fun, nostart, stoppable) - if not name or #name == 0 then return end - name = (stoppable and name) or timeout - if not helpers.timer_table[name] then - helpers.timer_table[name] = timer({ timeout = timeout }) - helpers.timer_table[name]:start() - end - helpers.timer_table[name]:connect_signal("timeout", fun) - if not nostart then - helpers.timer_table[name]:emit_signal("timeout") - end - return stoppable and helpers.timer_table[name] -end - --- }}} - --- {{{ Pipe operations - --- run a command and execute a function on its output (asynchronous pipe) --- @param cmd the input command --- @param callback function to execute on cmd output --- @return cmd PID -function helpers.async(cmd, callback) - return easy_async(cmd, - function (stdout, stderr, reason, exit_code) - callback(stdout) - end) -end - --- }}} - --- {{{ A map utility - -helpers.map_table = {} - -function helpers.set_map(element, value) - helpers.map_table[element] = value -end - -function helpers.get_map(element) - return helpers.map_table[element] -end - --- }}} - --- {{{ Misc - --- check if an element exist on a table -function helpers.element_in_table(element, tbl) - for _, i in pairs(tbl) do - if i == element then - return true - end - end - return false -end - --- iterate over table of records sorted by keys -function helpers.spairs(t) - -- collect the keys - local keys = {} - for k in pairs(t) do keys[#keys+1] = k end - - table.sort(keys) - - -- return the iterator function - local i = 0 - return function() - i = i + 1 - if keys[i] then - return keys[i], t[keys[i]] - end - end -end - --- }}} - -return helpers