local string = require "string"
local coroutine = require "coroutine"
local tparser = require "luci.template.parser"
+local json = require "luci.jsonc"
local _ubus = require "ubus"
local _ubus_connection = nil
local getmetatable, setmetatable = getmetatable, setmetatable
local rawget, rawset, unpack = rawget, rawset, unpack
-local tostring, type, assert = tostring, type, assert
+local tostring, type, assert, error = tostring, type, assert, error
local ipairs, pairs, next, loadstring = ipairs, pairs, next, loadstring
local require, pcall, xpcall = require, pcall, xpcall
local collectgarbage, get_memory_limit = collectgarbage, get_memory_limit
-- Pythonic string formatting extension
--
getmetatable("").__mod = function(a, b)
+ local ok, res
+
if not b then
return a
elseif type(b) == "table" then
+ local k, _
for k, _ in pairs(b) do if type(b[k]) == "userdata" then b[k] = tostring(b[k]) end end
- return a:format(unpack(b))
+
+ ok, res = pcall(a.format, a, unpack(b))
+ if not ok then
+ error(res, 2)
+ end
+ return res
else
if type(b) == "userdata" then b = tostring(b) end
- return a:format(b)
+
+ ok, res = pcall(a.format, a, b)
+ if not ok then
+ error(res, 2)
+ end
+ return res
end
end
return value and tparser.striptags(tostring(value))
end
+-- for bash, ash and similar shells single-quoted strings are taken
+-- literally except for single quotes (which terminate the string)
+-- (and the exception noted below for dash (-) at the start of a
+-- command line parameter).
+function shellsqescape(value)
+ local res
+ res, _ = string.gsub(value, "'", "'\\''")
+ return res
+end
+
+-- bash, ash and other similar shells interpret a dash (-) at the start
+-- of a command-line parameters as an option indicator regardless of
+-- whether it is inside a single-quoted string. It must be backlash
+-- escaped to resolve this. This requires in some funky special-case
+-- handling. It may actually be a property of the getopt function
+-- rather than the shell proper.
+function shellstartsqescape(value)
+ res, _ = string.gsub(value, "^\-", "\\-")
+ res, _ = string.gsub(res, "^-", "\-")
+ return shellsqescape(value)
+end
+
-- containing the resulting substrings. The optional max parameter specifies
-- the number of bytes to process, regardless of the actual length of the given
-- string. The optional last parameter, regex, specifies whether the separator
end
function serialize_json(x, cb)
- local rv, push = nil, cb
- if not push then
- rv = { }
- push = function(tok) rv[#rv+1] = tok end
- end
-
- if x == nil then
- push("null")
- elseif type(x) == "table" then
- -- test if table is array like
- local k, v
- local n1, n2 = 0, 0
- for k in pairs(x) do n1 = n1 + 1 end
- for k in ipairs(x) do n2 = n2 + 1 end
-
- if n1 == n2 and n1 > 0 then
- push("[")
- for k = 1, n2 do
- if k > 1 then
- push(",")
- end
- serialize_json(x[k], push)
- end
- push("]")
- else
- push("{")
- for k, v in pairs(x) do
- push("%q:" % tostring(k))
- serialize_json(v, push)
- if next(x, k) then
- push(",")
- end
- end
- push("}")
- end
- elseif type(x) == "number" or type(x) == "boolean" then
- if (x ~= x) then
- -- NaN is the only value that doesn't equal to itself.
- push("Number.NaN")
- else
- push(tostring(x))
- end
+ local js = json.stringify(x)
+ if type(cb) == "function" then
+ cb(js)
else
- push('"%s"' % tostring(x):gsub('["%z\1-\31]',
- function(c) return '\\u%04x' % c:byte(1) end))
- end
-
- if not cb then
- return table.concat(rv, "")
+ return js
end
end
return require "nixio.fs".dirname(ldebug.__file__)
end
+function checklib(fullpathexe, wantedlib)
+ local fs = require "nixio.fs"
+ local haveldd = fs.access('/usr/bin/ldd')
+ if not haveldd then
+ return false
+ end
+ local libs = exec("/usr/bin/ldd " .. fullpathexe)
+ if not libs then
+ return false
+ end
+ for k, v in ipairs(split(libs)) do
+ if v:find(wantedlib) then
+ return true
+ end
+ end
+ return false
+end
--
-- Coroutine safe xpcall and pcall versions modified for Luci
projects / project / luci.git / blobdiff