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-- experimental support for LuaJava
--
local path = {}
path.link_attrib = nil
local File = luajava.bindClass("java.io.File")
local Array = luajava.bindClass('java.lang.reflect.Array')
local function file(s)
return luajava.new(File,s)
end
function path.dir(P)
local ls = file(P):list()
print(ls)
local idx,n = -1,Array:getLength(ls)
return function ()
idx = idx + 1
if idx == n then return nil
else
return Array:get(ls,idx)
end
end
end
function path.mkdir(P)
return file(P):mkdir()
end
function path.rmdir(P)
return file(P):delete()
end
--- is this a directory?
-- @param P A file path
function path.isdir(P)
if P:match("\\$") then
P = P:sub(1,-2)
end
return file(P):isDirectory()
end
--- is this a file?.
-- @param P A file path
function path.isfile(P)
return file(P):isFile()
end
-- is this a symbolic link?
-- Direct support for symbolic links is not provided.
-- see http://stackoverflow.com/questions/813710/java-1-6-determine-symbolic-links
-- and the caveats therein.
-- @param P A file path
function path.islink(P)
local f = file(P)
local canon
local parent = f:getParent()
if not parent then
canon = f
else
parent = f.getParentFile():getCanonicalFile()
canon = luajava.new(File,parent,f:getName())
end
return canon:getCanonicalFile() ~= canon:getAbsoluteFile()
end
--- return size of a file.
-- @param P A file path
function path.getsize(P)
return file(P):length()
end
--- does a path exist?.
-- @param P A file path
-- @return the file path if it exists, nil otherwise
function path.exists(P)
return file(P):exists() and P
end
--- Return the time of last access as the number of seconds since the epoch.
-- @param P A file path
function path.getatime(P)
return path.getmtime(P)
end
--- Return the time of last modification
-- @param P A file path
function path.getmtime(P)
-- Java time is no. of millisec since the epoch
return file(P):lastModified()/1000
end
---Return the system's ctime.
-- @param P A file path
function path.getctime(P)
return path.getmtime(P)
end
return path
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