99 lines
2.2 KiB
Lua
99 lines
2.2 KiB
Lua
------------------------------------ MODS ------------------------------------
|
|
|
|
-- Tries popen
|
|
-- @param ... string: Chunks for popen
|
|
-- @return boolean, string: Status and output of popen
|
|
function io.try(...)
|
|
local cmd = table.concat({...}, " ") .. " 2>&1"
|
|
local handle = io.popen(cmd)
|
|
local output = handle:read("*a")
|
|
local status = (handle:close() ~= nil and true or false)
|
|
return status, output
|
|
end
|
|
|
|
-- Gets OS short name
|
|
-- It is just intented to know if it is Linux, macOS or Windows.
|
|
-- @return string: "linux" or "macos" or "windows"
|
|
function os.uname()
|
|
local status, output = io.try("uname")
|
|
if status then
|
|
output = output:gsub(" .*", ""):lower()
|
|
if output ~= "linux" then
|
|
return "macos"
|
|
end
|
|
return "linux"
|
|
end
|
|
return "windows"
|
|
end
|
|
|
|
-- Checks if OS is windows
|
|
-- @return boolean: Windows or not
|
|
function os.iswin()
|
|
return os.uname() == "windows"
|
|
end
|
|
|
|
-- Checks if OS is Unix
|
|
-- @return boolean: Unix or not
|
|
function os.isunix()
|
|
return os.uname() ~= "windows"
|
|
end
|
|
|
|
-- Changes newlines so everything is in one line
|
|
-- @return string: String with formatted newlines as literal "\n"
|
|
function string:linearize()
|
|
return self:gsub("\n", "\\\\n")
|
|
end
|
|
|
|
-- Checks if string is empty
|
|
-- @return boolean: Empty or not
|
|
function string:isempty()
|
|
return self == ''
|
|
end
|
|
|
|
function string:lstrip()
|
|
return self:gsub("^%s+", "")
|
|
end
|
|
|
|
function string:rstrip()
|
|
return self:gsub("%s+$", "")
|
|
end
|
|
|
|
function string:strip()
|
|
return self:lstrip():rstrip()
|
|
end
|
|
|
|
-- The following are heavily influenced by Python pathlib
|
|
-- Check: https://docs.python.org/3/library/pathlib.html
|
|
|
|
-- Checks if string is a file or directory
|
|
-- @return boolean: Exists or not
|
|
function string:exists()
|
|
return os.rename(self, self) ~= nil
|
|
end
|
|
|
|
-- Checks if string is a file
|
|
-- @return boolean: File or not
|
|
function string:isfile()
|
|
if self:exists() then
|
|
return io.open(self, "a+") ~= nil
|
|
end
|
|
return false
|
|
end
|
|
|
|
-- Checks if string is a directory
|
|
-- @return boolean: Directory or not
|
|
function string:isdir()
|
|
if self:exists() then
|
|
return io.open(self, "a+") == nil
|
|
end
|
|
return false
|
|
end
|
|
|
|
-- Reads file content
|
|
-- @return string or nil: File content or nil
|
|
function string:read_text()
|
|
if self:exists() then
|
|
return io.open(self):read("*a")
|
|
end
|
|
end
|