Enforce the display of files from DIR1 before those from DIR2.

diff --git a/finddup.c b/finddup.c
index a8847f5..562cf5c 100644 (file)
--- a/finddup.c
+++ b/finddup.c
@@ -112,7 +112,7 @@ struct file_with_size {
   size_t size;
   ino_t inode;
   struct file_with_size *next;
-  int group_id;
+  int group_id, dir_id;
 };
 
 void file_list_delete(struct file_with_size *head) {
@@ -237,6 +237,7 @@ struct file_with_size *scan_directory(struct file_with_size *tail,
           tmp->size = sb.st_size;
           tmp->inode = sb.st_ino;
           tmp->group_id = -1;
+          tmp->dir_id = -1;
           tail = tmp;
         }
       }
@@ -276,7 +277,13 @@ int compare_nodes(const void *x1, const void *x2) {
   } else if((*f1)->group_id > (*f2)->group_id) {
     return 1;
   } else {
-    return 0;
+    if((*f1)->dir_id < (*f2)->dir_id) {
+      return -1;
+    } else if((*f1)->dir_id > (*f2)->dir_id) {
+      return 1;
+    } else {
+      return 0;
+    }
   }
 }
 
@@ -409,11 +416,13 @@ void start(const char *dirname1, const char *dirname2) {
                 node1->group_id = node2->group_id;
               } else {
                 node1->group_id = k;
+                node1->dir_id = 1;
                 k++;
               }
             }
             if(node2->group_id < 0) {
               node2->group_id = node1->group_id;
+              node2->dir_id = 2;
             }
           }
         }