shithub: gefs

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main: add '-c' for check and exit command

this facilitates automated testing

--- a/main.c

+++ b/main.c

@@ -18,6 +18,7 @@

 int	nproc;

 int	permissive;

 int	usereserve;

+int	checkonly;

 char	*reamuser;

 char	*dev;

 vlong	tracesz		= 16*MiB;

@@ -290,6 +291,9 @@

 		ream = 1;

 		reamuser = EARGF(usage());

 		break;

+	case 'c':

+		checkonly = 1;

+		break;

 	case 'g':

 		grow = 1;

 		break;

@@ -379,6 +383,12 @@

 	}

 	if(grow){

 		growfs(dev);

+		exits(nil);

+	}

+	if(checkonly){

+		loadfs(dev);

+		if(!checkfs(2))

+			sysfatal("broken fs: %r");

 		exits(nil);

 	}