libs/lpk: Updated CLI

libs/lpk/luasrc/lpk.lua

@@ -6,12 +6,11 @@ __appname__ = "LuCI »lpk« Package Manager"
 __version__ = "0.1"
 __authors__ = "Steven Barth, Jo-Philipp Wich"
 __cpyrght__ = string.format("Copyright (c) 2008 %s", __authors__)
-__welcome__ = string.format("%s v%s\n%s",
- __appname__, __version__, __cpyrght__)
  
 
 options, arguments = luci.lpk.util.getopt(arg)
-config = luci.util.dtable()
+config  = luci.util.dtable()
+machine = luci.lpk.core.Machine()
 
 local cfgdump = loadfile("/etc/lpk.conf")
 if cfgdump then
@@ -20,23 +19,22 @@ if cfgdump then
 end
 
 if #arguments < 1 then
-	print(__welcome__)
+	luci.lpk.util.splash()
-	print([[
-	
-Usage:
- lpk [options] <command> [arguments]
- lpk [options] install|remove pkg1 [pkg2] [...] [pkgn]
-
-Commands:
- install	-	Install packages
- remove		-	Remove packages
- purge		-	Remove packages and their configuration files
- 
-Options:
- --force-depends	-	Ignore unresolvable dependencies
-]])
 else
-	-- Start machine
+	local task, error = machine:task(table.remove(arguments, 1),
+	 unpack(arguments))
+		
+	if task then
+		local stat, error = task:perform()
+		if not stat then
+			luci.util.perror(error or task.register.errstr or "Unknown Error")
+			os.exit(task.register.error or 1)
+		end
+	else
+		luci.util.perror(error .. "\n")
+		luci.lpk.util.splash()
+		os.exit(1)
+	end		
 end
 
 

libs/lpk/luasrc/lpk/core.lua

@@ -68,9 +68,12 @@ function Task.perform(self)
 			stat, err = self:rollback()
 		until not stat
 		
-		assert(not err, "Machine broken!")
+		if err then
+			self.register.errstr = err
+			self.register.error = 2
+		end
 		
-		return false, self.register.error
+		return false
 	end	
 end
 
@@ -89,15 +92,11 @@ end
 function Machine.task(self, name, ...)
 	local start = self:state(name)
 	
-	if not start or not start.entry then
+	if type(start) ~= "table" or not start.entry then
-		error("No such command: " .. name)
+		return false, "No such command: " .. name
 	end
 	
 	local register = {}
 	
-	if start:entry(register) then
+	return start:entry(register) and Task(self, register, start)
-		return Task(self, register, start)
-	else
-		return nil, register.error
-	end
 end 

libs/lpk/luasrc/lpk/util.lua

@@ -36,4 +36,24 @@ function getopt( arg, options )
 	    end
 	end
 	return tab, args
+end
+
+function splash()
+	require("luci.lpk")
+	luci.util.perror(string.format("%s v%s\n%s",
+	 luci.lpk.__appname__, luci.lpk.__version__, luci.lpk.__cpyrght__))
+	luci.util.perror([[
+	
+Usage:
+ lpk [options] <command> [arguments]
+ lpk [options] install|remove pkg1 [pkg2] [...] [pkgn]
+
+Commands:
+ install	-	Install packages
+ remove		-	Remove packages
+ purge		-	Remove packages and their configuration files
+ 
+Options:
+ --force-depends	-	Ignore unresolvable dependencies
+]])
 end