-
---[[
-
- Licensed under GNU General Public License v2
- * (c) 2013, Luke Bonham
-
---]]
-
-local debug = require("debug")
-
-local capi = { timer = timer }
-local io = { open = io.open,
-<<<<<<< HEAD
- lines = io.lines }
-=======
- lines = io.lines,
- popen = io.popen }
->>>>>>> upstream/master
-local rawget = rawget
-
--- 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
- lines = {}
- for line in io.lines(file) do
- lines[#lines + 1] = line
- 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)
- helpers.timer_table[name] = capi.timer({ timeout = timeout })
- helpers.timer_table[name]:connect_signal("timeout", fun)
- helpers.timer_table[name]:start()
- if not nostart then
- helpers.timer_table[name]:emit_signal("timeout")
- end
-end
-
--- }}}
-
-<<<<<<< HEAD
-=======
--- {{{ Pipe operations
-
--- read the full output of a pipe (command)
-function helpers.read_pipe(cmd)
- local f = assert(io.popen(cmd))
- local output = f:read("*all")
- f:close()
- return output
-end
-
--- }}}
-
->>>>>>> upstream/master
--- {{{ 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
-
--- }}}
-
-return helpers