Run remote propellor --spin with a controlling terminal.

Avoids need for hack to make ansi colors work, but also things like apt-get
and wget process bars will be displayed.

debian/changelog

@@ -8,6 +8,7 @@ propellor (0.9.3) UNRELEASED; urgency=medium
   * DigitalOcean.distroKernel property now reboots into the distribution
     kernel when necessary.
   * Avoid outputting color setting sequences when not run on a terminal.
+  * Run remote propellor --spin with a controlling terminal.
 
  -- Joey Hess <joeyh@debian.org>  Mon, 10 Nov 2014 11:15:27 -0400
 

src/Propellor/CmdLine.hs

@@ -41,7 +41,7 @@ processCmdLine = go =<< getArgs
   where
 	go ("--help":_) = usage
 	go ("--spin":h:[]) = return $ Spin h
-	go ("--boot":h:[]) = return $ Boot h
+	go ("--sync":[]) = return $ Sync
 	go ("--add-key":k:[]) = return $ AddKey k
 	go ("--set":f:c:[]) = withprivfield f c Set
 	go ("--dump":f:c:[]) = withprivfield f c Dump
@@ -91,7 +91,7 @@ defaultMain hostlist = do
 		( onlyProcess $ withhost hn mainProperties
 		, go True (Spin hn)
 		)
-	go False (Boot hn) = onlyProcess $ withhost hn boot
+	go False Sync = onlyProcess sync
 
 	withhost :: HostName -> (Host -> IO ()) -> IO ()
 	withhost hn a = maybe (unknownhost hn hostlist) a (findHost hostlist hn)
@@ -186,6 +186,8 @@ spin hn hst = do
 	void $ boolSystem "git" [Param "push"]
 	cacheparams <- toCommand <$> sshCachingParams hn
 	go cacheparams url =<< hostprivdata
+	unlessM (boolSystem "ssh" (map Param (cacheparams ++ ["-t", user, spincmd]))) $
+		error "remote propellor failed"
   where
 	hostprivdata = show . filterPrivData hst <$> decryptPrivData
 
@@ -209,7 +211,9 @@ spin hn hst = do
 	
 	user = "root@"++hn
 
-	bootstrapcmd = shellWrap $ intercalate " ; "
+	mkcmd = shellWrap . intercalate " ; "
+
+	bootstrapcmd = mkcmd
 		[ "if [ ! -d " ++ localdir ++ " ]"
 		, "then " ++ intercalate " && "
 			[ "apt-get update"
@@ -219,11 +223,14 @@ spin hn hst = do
 		, "else " ++ intercalate " && "
 			[ "cd " ++ localdir
 			, "if ! test -x ./propellor; then make deps build; fi"
-			, "./propellor --boot " ++ hn
+			, "./propellor --sync"
 			]
 		, "fi"
 		]
 
+	spincmd = mkcmd
+		[ "cd " ++ localdir ++ " && ./propellor --spin " ++ hn ]
+
 	getstatus :: Handle -> IO BootStrapStatus
 	getstatus h = do
 		l <- hGetLine h
@@ -295,16 +302,14 @@ fromMarked marker s
 	len = length marker
 	matches = filter (marker `isPrefixOf`) $ lines s
 
-boot :: Host -> IO ()
+sync :: IO ()
-boot h = do
+sync = do
 	sendMarked stdout statusMarker $ show Ready
 	reply <- hGetContentsStrict stdin
 
 	makePrivDataDir
 	maybe noop (writeFileProtected privDataLocal) $
 		fromMarked privDataMarker reply
-	forceConsoleMode
-	mainProperties h
 
 getUrl :: IO String
 getUrl = maybe nourl return =<< getM get urls

src/Propellor/Message.hs

@@ -6,26 +6,20 @@ import System.Console.ANSI
 import System.IO
 import System.Log.Logger
 import "mtl" Control.Monad.Reader
-import Control.Applicative
-import Data.Maybe
 
 import Propellor.Types
 import Utility.Monad
-import Utility.Env
 
 data MessageHandle
 	= ConsoleMessageHandle
 	| TextMessageHandle
 
 mkMessageHandle :: IO MessageHandle
-mkMessageHandle = ifM (hIsTerminalDevice stdout <||> (isJust <$> getEnv "TERM"))
+mkMessageHandle = ifM (hIsTerminalDevice stdout)
 	( return ConsoleMessageHandle
 	, return TextMessageHandle
 	)
 
-forceConsoleMode :: IO ()
-forceConsoleMode = void $ setEnv "TERM" "vt100" False
-
 whenConsole :: MessageHandle -> IO () -> IO ()
 whenConsole ConsoleMessageHandle a = a
 whenConsole _ _ = return ()

src/Propellor/Types.hs

@@ -137,7 +137,6 @@ instance ActionResult Result where
 data CmdLine
 	= Run HostName
 	| Spin HostName
-	| Boot HostName
 	| Set PrivDataField Context
 	| Dump PrivDataField Context
 	| Edit PrivDataField Context
@@ -145,5 +144,6 @@ data CmdLine
 	| AddKey String
 	| Continue CmdLine
 	| Chain HostName
+	| Sync
 	| Docker HostName
 	deriving (Read, Show, Eq)