dpkg: Add debug output on diversions and statoverride database loading

debian/changelog

@@ -5,6 +5,7 @@ dpkg (1.17.4) UNRELEASED; urgency=low
     get replaced multiple times in maintainer scripts, as we rely on the
     inode numbers being different when checking if the databases need to
     be reloaded. Regression introduced in 1.17.2. Closes: #731524
+  * Add debug output to diversions and statoverride database loading code.
 
  -- Guillem Jover <guillem@debian.org>  Thu, 05 Dec 2013 11:08:49 +0100
 

src/divertdb.c

@@ -79,6 +79,7 @@ ensure_diversions(void)
 		    sb_prev.st_dev == sb_next.st_dev &&
 		    sb_prev.st_ino == sb_next.st_ino) {
 			onerr_abort--;
+			debug(dbg_general, "%s: same, skipping", __func__);
 			return;
 		}
 		sb_prev = sb_next;
@@ -95,8 +96,10 @@ ensure_diversions(void)
 	diversions = NULL;
 	if (!file) {
 		onerr_abort--;
+		debug(dbg_general, "%s: none, reseting", __func__);
 		return;
 	}
+	debug(dbg_general, "%s: new, (re)loading", __func__);
 
 	while (fgets_checked(linebuf, sizeof(linebuf), file, diversionsname) >= 0) {
 		oicontest = nfmalloc(sizeof(struct diversion));

src/statdb.c

@@ -144,6 +144,7 @@ ensure_statoverrides(void)
 		    sb_prev.st_dev == sb_next.st_dev &&
 		    sb_prev.st_ino == sb_next.st_ino) {
 			onerr_abort--;
+			debug(dbg_general, "%s: same, skipping", __func__);
 			return;
 		}
 		sb_prev = sb_next;
@@ -155,8 +156,10 @@ ensure_statoverrides(void)
 
 	if (!file) {
 		onerr_abort--;
+		debug(dbg_general, "%s: none, resetting", __func__);
 		return;
 	}
+	debug(dbg_general, "%s: new, (re)loading", __func__);
 
 	/* If the statoverride list is empty we don't need to bother
 	 * reading it. */