1 files changed, 16 insertions, 8 deletions

diff --git a/sbosrcarch b/sbosrcarch
index c6e3add..a8387dd 100755
--- a/sbosrcarch
+++ b/sbosrcarch
@@ -1228,7 +1228,7 @@ sub purge_mode {
 
 	$purgebytes = $purgefiles = 0;
 
-	# pass 1
+	# pass 1; build list of all source files, by parsing all .info files
 	%keep_filenames = %keep_md5sums = (); # populated by the find():
 	find({wanted => \&purge_pass_1_wanted, no_chdir => 1}, ".");
 
@@ -1236,20 +1236,22 @@ sub purge_mode {
 #		warn "keep $_\n";
 #	}
 
-	# pass 2
+	# pass 2: find all source files, delete any that aren't mentioned in any
+	# .info files (using list from above)
 	chdir($archivedir) or die "$archivedir: $!\n";
 	find({wanted => \&purge_pass_2_wanted, no_chdir => 1}, "by-name");
 
-#	for(keys %keep_filenames) {
-#		print "KEEP $_\n";
-#	}
-
-	# pass 3
 	if($rebuild) {
+		# pass 3: delete & recreate entire by-md5 tree
 		rmtree("by-md5");
 		print "Removed by-md5 tree, rebuilding\n";
 		find({wanted => \&rebuild_wanted, no_chdir => 1}, "by-name");
 	} else {
+		# pass 3: find all by-md5 files, delete any whose md5sums aren't found
+		# in any .info file.
+		find({wanted => \&purge_pass_3_wanted, no_chdir => 1}, "by-md5");
+
+		# pass 4: clean out (remove) any empty directories.
 		trim_post();
 	}
 
@@ -1290,6 +1292,12 @@ sub purge_pass_2_wanted {
 	#unlink $md5path;
 }
 
+# helper for purge_mode, removes all files in by-md5
+# dirs that aren't listed in %keep_md5sums
+sub purge_pass_3_wanted {
+	print "purge_pass_3_wanted $_\n";
+}
+
 sub rebuild_wanted {
 	return unless -f;
 
@@ -1531,7 +1539,7 @@ sub check_byname_wanted {
 
 	my $info = join("/", $sbogitdir, $category, $prgnam, $prgnam . ".info");
 	if(!-f $info) {
-		print "$shortname extraneous: no info file for $prgnam/$category\n";
+		print "$shortname extraneous: no info file for $category/$prgnam\n";
 		$filecount--;
 		return;
 	}