Map rotation fixes:

Fixes mutiple rotate operations from breaking the server, map rotation will properly detect rotation operations as well as update operations and abort.
Fixes max pop being treated as minpop
Adds more feedback to admin verbs.

code/modules/admin/verbs/maprotation.dm

@@ -28,7 +28,12 @@
 			mapname += "\]"
 
 		maprotatechoices[mapname] = VM
-	var/choosenmap = input("Choose a map to rotate to", "Change Map")  as null|anything in maprotatechoices
+	var/choosenmap = input("Choose a map to change to", "Change Map")  as null|anything in maprotatechoices
 	if (!choosenmap)
 		return
-	changemap(maprotatechoices[choosenmap])
+	ticker.maprotatechecked = 1
+	var/datum/votablemap/VM = maprotatechoices[choosenmap]
+	message_admins("[key_name_admin(usr)] is changing the map to [VM.name]([VM.friendlyname])")
+	log_admin("[key_name(usr)] is changing the map to [VM.name]([VM.friendlyname])")
+	if (changemap(VM) == 0)
+		message_admins("[key_name_admin(usr)] has changed the map to [VM.name]([VM.friendlyname])")

code/world.dm

@@ -330,7 +330,7 @@ var/failed_db_connections = 0
 		if (VM.minusers > 0 && players < VM.minusers)
 			mapvotes.Remove(map)
 			continue
-		if (VM.maxusers > 0 && players < VM.maxusers)
+		if (VM.maxusers > 0 && players > VM.maxusers)
 			mapvotes.Remove(map)
 			continue
 
@@ -350,6 +350,8 @@ var/failed_db_connections = 0
 		return
 	if (!istype(VM))
 		return
+
+	log_game("Changing map to [VM.name]([VM.friendlyname])")
 	var/file = file("setnewmap.bat")
 	file << "\nset MAPROTATE=[VM.name]\n"
 	. = shell("..\\bin\\maprotate.bat")
@@ -359,15 +361,25 @@ var/failed_db_connections = 0
 			log_game("Failed to change map: Could not run map rotator")
 		if (0)
 			log_game("Changed to map [VM.friendlyname]")
+		//1x: file errors
 		if (11)
-			message_admins("Failed to change map: Map rotator script couldn't find file listing new map")
-			log_game("Failed to change map: Map rotator script couldn't find file listing new map")
+			message_admins("Failed to change map: File error: Map rotator script couldn't find file listing new map")
+			log_game("Failed to change map: File error: Map rotator script couldn't find file listing new map")
 		if (12)
-			message_admins("Failed to change map: Map rotator script couldn't find tgstation-server framework")
-			log_game("Failed to change map: Map rotator script couldn't find tgstation-server framework")
-		if (13)
-			message_admins("Failed to change map: Could not compile new map:[VM.name]")
-			log_game("Failed to change map: Could not compile new map:[VM.name]")
+			message_admins("Failed to change map: File error: Map rotator script couldn't find tgstation-server framework")
+			log_game("Failed to change map: File error: Map rotator script couldn't find tgstation-server framework")
+		//2x: conflicting operation errors
+		if (21)
+			message_admins("Failed to change map: Conflicting operation error: Current server update operation detected")
+			log_game("Failed to change map: Conflicting operation error: Current server update operation detected")
+		if (22)
+			message_admins("Failed to change map: Conflicting operation error: Current map rotation operation detected")
+			log_game("Failed to change map: Conflicting operation error: Current map rotation operation detected")
+		//3x: external errors
+		if (31)
+			message_admins("Failed to change map: External error: Could not compile new map:[VM.name]")
+			log_game("Failed to change map: External error: Could not compile new map:[VM.name]")
+
 		else
-			message_admins("Failed to change map: Unknown error")
-			log_game("Failed to change map: Unknown error")
+			message_admins("Failed to change map: Unknown error: Error code #[.]")
+			log_game("Failed to change map: Unknown error: Error code #[.]")

tools/tgstation-server/Update Server.bat

@@ -6,6 +6,20 @@ call bin\getcurdate.bat
 echo This will handle downloading git, compiling the server, and applying the update.
 echo ready?
 timeout 120
+if exists updating.lk (
+	echo ERROR! A current update script has been detected running. if you know this is a mistake:
+	pause
+	echo Please be double sure that an update script is not currently running, if you think one might be, close this window. otherwise:
+	pause
+)
+if exists rotating.lk (
+	echo ERROR! A current map rotation operation has been detected running. IT IS STRONGLY RECOMMENDED YOU DO NOT UPDATE RIGHT NOW. if you know this is a mistake, and that the game server is not currently rotating the map:
+	pause
+	echo IT IS STRONGLY RECOMMENDED YOU DO NOT UPDATE RIGHT NOW. If a map rotation script runs at the same time as an update script the server will generally break in ways not trivial to recover from. Are you REALLY sure? Please close this window if you are not, otherwise:
+	pause
+)
+@del /F /Q rotating.lk >nul 2>nul
+echo lock>updating.lk
 
 rem if the first arg to nudge.py is not a channel, it is treated as the "source"
 if not defined UPDATE_LOG_CHANNEL set UPDATE_LOG_CHANNEL="UPDATER"
@@ -16,6 +30,7 @@ call bin\updategit.bat
 if %GIT_EXIT% neq 0 (
 	echo git pull failed. Aborting update
 	python bot\nudge.py %UPDATE_LOG_CHANNEL% "Git pull failed. Aborting update"
+	@del updating.lk >nul 2>nul
 	pause
 	exit /b 1
 )
@@ -27,10 +42,10 @@ if defined PUSHCHANGELOGTOGIT (
 		git add -u html/changelog.html
 		git add -u html/changelogs
 		git commit -m "Automatic changelog compile"
-		REM an error here generally means there was nothing to commit.
 		if %ERRORLEVEL% == 0 (
 			git push
 		)
+		REM an error here generally means there was nothing to commit.
 	)
 )
 
@@ -54,6 +69,7 @@ call bin\build.bat
 if %DM_EXIT% neq 0 (
 	echo DM compile failed. Aborting.
 	python bot\nudge.py %UPDATE_LOG_CHANNEL% "DM compile failed Aborting update." >nul 2>nul
+	@del /F /Q updating.lk >nul 2>nul
 	pause
 	exit /b 1
 )
@@ -63,7 +79,7 @@ if not defined NOWAITUPDATES (
 	echo Ready?
 	pause
 )
-
+@del updating.lk >nul 2>nul
 rmdir /q gamefolder
 mklink /d gamefolder gamecode\%AB% >nul
 python bot\nudge.py %UPDATE_LOG_CHANNEL% "Update job finished. Update will take place next round." >nul 2>nul

tools/tgstation-server/bin/copyfromgit.bat

@@ -4,9 +4,9 @@ rmdir /q gamecode\%AB%\data >nul 2>nul
 rmdir /q gamecode\%AB%\config >nul 2>nul
 rmdir /q gamecode\%AB%\cfg >nul 2>nul
 del /q gamecode\%AB%\nudge.py >nul 2>nul
-del /q gamecode\%AB%\CORE_DATA >nul 2>nul
+del /q gamecode\%AB%\CORE_DATA.py >nul 2>nul
 
-rmdir /S /q gamecode\%AB%
+del /S /F /Q gamecode\%AB%
 
 echo Copying files
 xcopy gitrepo gamecode\%AB% /Y /X /K /R /H /I /C /V /E /Q /EXCLUDE:copyexclude.txt >nul
@@ -20,5 +20,3 @@ rmdir /s /q gamecode\%AB%\data >nul 2>nul
 mklink /d gamecode\%AB%\data ..\..\gamedata\data >nul
 mklink /d gamecode\%AB%\config ..\..\gamedata\config >nul
 mklink /d gamecode\%AB%\cfg ..\..\gamedata\cfg >nul
-
-copy bin\maprotate.bat gamecode\%AB%\maprotate.bat

tools/tgstation-server/bin/maprotate.bat

@@ -4,9 +4,13 @@
 if not exist setnewmap.bat exit 11
 call setnewmap.bat
 cd ..
+
+if exists updating.lk exit 21
+if exists rotating.lk exit 22
+
 if not exist config.bat exit 12
 call config.bat
-
+echo lock>rotating.lk
 cls
 echo Rotating map to %MAPROTATE%
 
@@ -21,7 +25,8 @@ cls
 echo Rotating map to %MAPROTATE%
 
 call bin\build.bat
-if %DM_EXIT% neq 0 exit 13
+@del /F /Q rotating.lk >nul 2>nul
+if %DM_EXIT% neq 0 exit 31
 
 rmdir /q gamefolder
 mklink /d gamefolder gamecode\%AB%