format and installer branches

sys/apis/history.lua

@@ -5,46 +5,46 @@ local History_mt = { __index = History }
 
 function History.load(filename, limit)
 
-  local self = setmetatable({
-    limit = limit,
-    filename = filename,
-  }, History_mt)
+	local self = setmetatable({
+		limit = limit,
+		filename = filename,
+	}, History_mt)
 
-  self.entries = Util.readLines(filename) or { }
-  self.pos = #self.entries + 1
+	self.entries = Util.readLines(filename) or { }
+	self.pos = #self.entries + 1
 
-  return self
+	return self
 end
 
 function History:add(line)
-  if line ~= self.entries[#self.entries] then
-    table.insert(self.entries, line)
-    if self.limit then
-      while #self.entries > self.limit do
-        table.remove(self.entries, 1)
-      end
-    end
-    Util.writeLines(self.filename, self.entries)
-    self.pos = #self.entries + 1
-  end
+	if line ~= self.entries[#self.entries] then
+		table.insert(self.entries, line)
+		if self.limit then
+			while #self.entries > self.limit do
+				table.remove(self.entries, 1)
+			end
+		end
+		Util.writeLines(self.filename, self.entries)
+		self.pos = #self.entries + 1
+	end
 end
 
 function History:reset()
-  self.pos = #self.entries + 1
+	self.pos = #self.entries + 1
 end
 
 function History:back()
-  if self.pos > 1 then
-    self.pos = self.pos - 1
-    return self.entries[self.pos]
-  end
+	if self.pos > 1 then
+		self.pos = self.pos - 1
+		return self.entries[self.pos]
+	end
 end
 
 function History:forward()
-  if self.pos <= #self.entries then
-    self.pos = self.pos + 1
-    return self.entries[self.pos]
-  end
+	if self.pos <= #self.entries then
+		self.pos = self.pos + 1
+		return self.entries[self.pos]
+	end
 end
 
 return History