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code/drmr/utils.lua

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+local lfs = require("lfs_ffi")
+local cjson = require("cjson")
+
+local utils = {}
+
+-- we want to list the contents of a dir
+function utils:dirlist( path )
+    local files, dirs, images, audio = {}, {}, {}, {}
+    for file in lfs.dir( path ) do
+        local filepath = path .. "/" .. file
+        local attribute = lfs.attributes( filepath, "mode" ) or "nil"
+        if file ~= "." and file ~= ".." and not string.match(file, ".filepart") then
+            if lfs.attributes( filepath, "mode" ) == "file" then
+                if utils:match_image( file ) then
+                    table.insert( images, file )
+                elseif utils:match_audio( file) then
+                    table.insert( audio, file )
+                else
+                    table.insert( files, file )
+                end
+            elseif lfs.attributes( filepath, "mode" ) == "directory" then
+                table.insert( dirs, file )
+            end
+        end
+    end
+
+    table.sort( images )
+    table.sort( files )
+    table.sort( dirs )
+    table.sort( audio )
+
+    local stuff = {
+        files = files,
+        dirs = dirs,
+        images = images,
+        audio = audio
+    }
+    return stuff
+end
+
+-- open a json file and return the table
+function utils:opendata( path )
+    local data = io.open(path)
+    if data then
+        local data_file = data:read("a")
+        data:close()
+        local data_decode = cjson.decode(data_file)
+
+        return data_decode
+    else
+        return nil
+    end
+end
+
+return utils