first commit

.luacheckrc

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+unused_args = false
+allow_defined_top = true
+
+globals = {
+    "minetest",
+    "yaml",
+}
+
+read_globals = {
+    string = {fields = {"split"}},
+    table = {fields = {"copy", "getn"}},
+
+    -- Builtin
+    "vector", "ItemStack",
+    "dump", "DIR_DELIM", "VoxelArea", "Settings",
+
+    -- MTG
+    "default", "sfinv", "creative",
+}

README.md

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+# Minetest YAML Config Library Mod
+

init.lua

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+-- yaml/init.lua
+
+local MOD_NAME = minetest.get_current_modname()
+local MOD_PATH = minetest.get_modpath(MOD_NAME) .. "/"
+local WORLD_PATH = minetest.get_worldpath() .. "/"
+
+-- export the global yaml object
+yaml = rawget(_G, MOD_NAME)
+
+if (not yaml) then
+  yaml = {}
+  local function defaults(t1, t2)
+    if (not t2) then return t1 end
+    if (not t1) then return t2 end
+    for k,v in pairs(t2) do
+      if type(v) == "table" then
+        if type(t1[k] or false) == "table" then
+          defaults(t1[k] or {}, t2[k] or {})
+        else
+          t1[k] = v
+        end
+      else
+        if (t1[k] == nil or type(t1[k]) ~= type(t2[k])) then t1[k] = v end
+      end
+    end
+    return t1
+  end
+  yaml.defaults = defaults
+
+  local function readFile(filepath)
+    local f = io.open(filepath, "rb")
+    if f then
+      local content = f:read("*all")
+      f:close()
+      return content
+    end
+  end
+
+  local function writeFile(filepath, content)
+    local f = io.open(filepath, "wb")
+    if f then
+      f:write(content)
+      f:close()
+      return true
+    end
+  end
+
+  yaml = dofile(MOD_PATH .. "/yaml/yaml.lua")
+
+  local function readYamlFile(filepath)
+    local content = readFile(filepath)
+    if content then
+      local result = yaml.eval(content)
+      return result
+    end
+  end
+  yaml.readFile = readYamlFile
+
+  local function readModConfig(filename, modPath)
+    if modPath then
+      if modPath:sub(-1) ~= "/" then modPath = modPath .. "/" end
+      return readYamlFile(modPath .. filename)
+    end
+  end
+  yaml.readModConfig = readModConfig
+
+  local function readWorldConfig(filename)
+    return readYamlFile(WORLD_PATH .. filename)
+  end
+  yaml.readWorldConfig = readWorldConfig
+
+  yaml.readConfig = function(filename, modPath)
+    local modConf = readModConfig(filename, modPath)
+    local worldConf = readWorldConfig(filename)
+    return defaults(worldConf, modConf)
+  end
+
+  local function writeYamlFile(filepath, content)
+    content = yaml.dump(content)
+    if content then
+      local result = writeFile(filepath, content)
+      return result
+    end
+  end
+  yaml.writeFile = writeYamlFile
+
+  local function writeModConfig(filename, content, modPath)
+    if modPath then
+      if modPath:sub(-1) ~= "/" then modPath = modPath .. "/" end
+      return writeYamlFile(modPath .. filename, content)
+    end
+  end
+  yaml.writeModConfig = writeModConfig
+
+  local function writeWorldConfig(filename, content)
+    return writeYamlFile(WORLD_PATH .. filename, content)
+  end
+  yaml.writeWorldConfig = writeWorldConfig
+  yaml.writeConfig = writeWorldConfig
+
+end
+

mod.conf

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+name = yaml
+description = YAML Config Library