From 1bed4569ed2f2b64f83e18be6f118a035f076684 Mon Sep 17 00:00:00 2001
From: Fredrik Tolf <fredrik@dolda2000.com>
Date: Fri, 30 Sep 2011 15:13:22 +0200
Subject: [PATCH] nextep: Remove empty data directories when unsetting values.

---
 nextep.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/nextep.c b/nextep.c
index 0a8b6b6..151db93 100644
--- a/nextep.c
+++ b/nextep.c
@@ -3,6 +3,7 @@
 #include <unistd.h>
 #include <string.h>
 #include <libgen.h>
+#include <dirent.h>
 #include <errno.h>
 #include <sys/stat.h>
 
@@ -15,6 +16,26 @@ static int ensuredir(char *base, char *dir)
     return(0);
 }
 
+static void checkempty(char *dir)
+{
+    DIR *dh;
+    int empty;
+    struct dirent *de;
+    
+    if((dh = opendir(dir)) == NULL)
+	return;
+    empty = 1;
+    while((de = readdir(dh)) != NULL) {
+	if(de->d_name[0] != '.') {
+	    empty = 0;
+	    break;
+	}
+    }
+    closedir(dh);
+    if(empty)
+	rmdir(dir);
+}
+
 static void usage(FILE *out)
 {
     fprintf(out, "usage: nextep [-h] [-f FILE] [-s SET-VALUE] [DIR]\n");
@@ -81,6 +102,7 @@ int main(int argc, char **argv)
 	    fprintf(stderr, "nextep: %s: %s\n", fpath, strerror(errno));
 	    exit(1);
 	}
+	checkempty(base);
     } else {
 	if(ensuredir(buf, base)) {
 	    fprintf(stderr, "nextep: %s: %s\n", base, strerror(errno));
-- 
2.11.0