Date: Sun, 18 Feb 2018 01:35:46 +0000 (UTC) From: Kyle Evans <kevans@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r329504 - head/stand/lua Message-ID: <201802180135.w1I1ZkcF097492@repo.freebsd.org>
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Author: kevans Date: Sun Feb 18 01:35:46 2018 New Revision: 329504 URL: https://svnweb.freebsd.org/changeset/base/329504 Log: stand/lua: More style nits, config.lua Some other points I think we need to be consistent on: - Spacing around string concatenation (always) - Test against 'nil' explicitly rather than relying on 'not' for things that reasonably won't be returning a boolean. e.g. loader.getenv Eventually this will all get formalized somewhere. Modified: head/stand/lua/config.lua Modified: head/stand/lua/config.lua ============================================================================== --- head/stand/lua/config.lua Sun Feb 18 01:31:18 2018 (r329503) +++ head/stand/lua/config.lua Sun Feb 18 01:35:46 2018 (r329504) @@ -31,7 +31,7 @@ local config = {}; local modules = {}; function config.setKey(k, n, v) - if modules[k] == nil then + if (modules[k] == nil) then modules[k] = {}; end modules[k][n] = v; @@ -54,7 +54,7 @@ local pattern_table = { [2] = { str = "^%s*([%w_]+)_load%s*=%s*\"([%w%s%p]-)\"%s*(.*)", process = function(k, v) - if modules[k] == nil then + if (modules[k] == nil) then modules[k] = {}; end modules[k].load = v:upper(); @@ -106,8 +106,8 @@ local pattern_table = { [9] = { str = "^%s*exec%s*=%s*\"([%w%s%p]-)\"%s*(.*)", process = function(k, v) - if loader.perform(k) ~= 0 then - print("Failed to exec '"..k.."'"); + if (loader.perform(k) ~= 0) then + print("Failed to exec '" .. k .. "'"); end end }, @@ -115,8 +115,9 @@ local pattern_table = { [10] = { str = "^%s*([%w%p]+)%s*=%s*\"([%w%s%p]-)\"%s*(.*)", process = function(k, v) - if loader.setenv(k, v) ~= 0 then - print("Failed to set '"..k.."' with value: "..v..""); + if (loader.setenv(k, v) ~= 0) then + print("Failed to set '" .. k .. + "' with value: " .. v .. ""); end end }, @@ -124,20 +125,21 @@ local pattern_table = { [11] = { str = "^%s*([%w%p]+)%s*=%s*(%d+)%s*(.*)", process = function(k, v) - if loader.setenv(k, v) ~= 0 then - print("Failed to set '"..k.."' with value: "..v..""); + if (loader.setenv(k, v) ~= 0) then + print("Failed to set '" .. k .. + "' with value: " .. v .. ""); end end } }; function config.isValidComment(c) - if c ~= nil then + if (c ~= nil) then local s = c:match("^%s*#.*"); - if s == nil then + if (s == nil) then s = c:match("^%s*$"); end - if s == nil then + if (s == nil) then return false; end end @@ -147,43 +149,50 @@ end function config.loadmod(mod, silent) local status = true; for k, v in pairs(mod) do - if v.load == "YES" then + if (v.load == "YES") then local str = "load "; - if v.flags ~= nil then + if (v.flags ~= nil) then str = str .. v.flags .. " "; end - if v.type ~= nil then + if (v.type ~= nil) then str = str .. "-t " .. v.type .. " "; end - if v.name ~= nil then + if (v.name ~= nil) then str = str .. v.name; else str = str .. k; end - if v.before ~= nil then - if loader.perform(v.before) ~= 0 then - if not silent then - print("Failed to execute '"..v.before.."' before loading '"..k.."'"); + if (v.before ~= nil) then + if (loader.perform(v.before) ~= 0) then + if (not silent) then + print("Failed to execute '" .. + v.before .. + "' before loading '".. k .. + "'"); end status = false; end end - if loader.perform(str) ~= 0 then - if not silent then - print("Failed to execute '" .. str .. "'"); + if (loader.perform(str) ~= 0) then + if (not silent) then + print("Failed to execute '" .. str .. + "'"); end - if v.error ~= nil then + if (v.error ~= nil) then loader.perform(v.error); end status = false; end - if v.after ~= nil then - if loader.perform(v.after) ~= 0 then - if not silent then - print("Failed to execute '"..v.after.."' after loading '"..k.."'"); + if (v.after ~= nil) then + if (loader.perform(v.after) ~= 0) then + if (not silent) then + print("Failed to execute '" .. + v.after .. + "' after loading '" .. k .. + "'"); end status = false; end @@ -199,9 +208,9 @@ end function config.parse(name, silent) local f = io.open(name); - if f == nil then - if not silent then - print("Failed to open config: '" .. name.."'"); + if (f == nil) then + if (not silent) then + print("Failed to open config: '" .. name .. "'"); end return false; end @@ -211,9 +220,9 @@ function config.parse(name, silent) text, r = io.read(f); - if text == nil then - if not silent then - print("Failed to read config: '" .. name.."'"); + if (text == nil) then + if (not silent) then + print("Failed to read config: '" .. name .. "'"); end return false; end @@ -222,19 +231,19 @@ function config.parse(name, silent) local status = true; for line in text:gmatch("([^\n]+)") do - - if line:match("^%s*$") == nil then + if (line:match("^%s*$") == nil) then local found = false; for i, val in ipairs(pattern_table) do local k, v, c = line:match(val.str); - if k ~= nil then + if (k ~= nil) then found = true; - if config.isValidComment(c) then + if (config.isValidComment(c)) then val.process(k, v); else - print("Malformed line ("..n.."):\n\t'"..line.."'"); + print("Malformed line (" .. n .. + "):\n\t'" .. line .. "'"); status = false; end @@ -242,8 +251,9 @@ function config.parse(name, silent) end end - if found == false then - print("Malformed line ("..n.."):\n\t'"..line.."'"); + if (found == false) then + print("Malformed line (" .. n .. "):\n\t'" .. + line .. "'"); status = false; end end @@ -261,8 +271,8 @@ function config.loadkernel(other_kernel) local try_load = function (names) for name in names:gmatch("([^;]+)%s*;?") do - r = loader.perform("load "..flags.." "..name); - if r == 0 then + r = loader.perform("load " .. flags .. " " .. name); + if (r == 0) then return name; end end @@ -273,20 +283,20 @@ function config.loadkernel(other_kernel) local bootfile = loader.getenv("bootfile"); -- append default kernel name - if not bootfile then + if (bootfile == nil) then bootfile = "kernel"; else - bootfile = bootfile..";kernel"; + bootfile = bootfile .. ";kernel"; end return try_load(bootfile); end -- kernel not set, try load from default module_path - if kernel == nil then + if (kernel == nil) then local res = load_bootfile(); - if res ~= nil then + if (res ~= nil) then return true; else print("No kernel set, failed to load from module_path"); @@ -298,22 +308,21 @@ function config.loadkernel(other_kernel) local module_path = config.module_path; local res = nil; - if other_kernel ~= nil then + if (other_kernel ~= nil) then kernel = other_kernel; end -- first try load kernel with module_path = /boot/${kernel} -- then try load with module_path=${kernel} - local paths = {"/boot/"..kernel, kernel}; + local paths = {"/boot/" .. kernel, kernel}; for k,v in pairs(paths) do - loader.setenv("module_path", v); res = load_bootfile(); -- succeeded, add path to module_path - if res ~= nil then + if (res ~= nil) then if (module_path ~= nil) then - loader.setenv("module_path", v..";".. + loader.setenv("module_path", v .. ";" .. module_path); end return true; @@ -323,10 +332,10 @@ function config.loadkernel(other_kernel) -- failed to load with ${kernel} as a directory -- try as a file res = try_load(kernel); - if res ~= nil then + if (res ~= nil) then return true; else - print("Failed to load kernel '"..kernel.."'"); + print("Failed to load kernel '" .. kernel .. "'"); return false; end end @@ -334,20 +343,20 @@ end function config.load(file) - - if not file then + if (not file) then file = "/boot/defaults/loader.conf"; end - if not config.parse(file) then --- print("Failed to parse configuration: '"..file.."'"); + if (not config.parse(file)) then +-- print("Failed to parse configuration: '" .. file .. "'"); end local f = loader.getenv("loader_conf_files"); - if f ~= nil then + if (f ~= nil) then for name in f:gmatch("([%w%p]+)%s*") do - if not config.parse(name) then --- print("Failed to parse configuration: '"..name.."'"); + if (not config.parse(name)) then +-- print("Failed to parse configuration: '" .. +-- name .. "'"); end end end @@ -359,7 +368,7 @@ function config.load(file) config.loadkernel(); print("Loading configured modules..."); - if not config.loadmod(modules) then + if (not config.loadmod(modules)) then print("Could not load one or more modules!"); end end @@ -375,7 +384,7 @@ function config.reload(kernel) print("Trying to load '" .. kernel .. "'") kernel_loaded = config.loadkernel(kernel); if (kernel_loaded) then - print("Kernel '"..kernel.."' loaded!"); + print("Kernel '" .. kernel .. "' loaded!"); end end
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