# HG changeset patch
# User Olaf Wintermann <olaf.wintermann@gmail.com>
# Date 1501763556 -7200
# Node ID b321a3be0a38fcc14ecbcbc4ad70058c39af54c7
# Parent  7b1ca53f38970cb8d2ac547efeaf6510a40abe85
fixes unnecessary mkcol in dav-sync

diff -r 7b1ca53f3897 -r b321a3be0a38 dav/sync.c
--- a/dav/sync.c	Thu Aug 03 12:48:28 2017 +0200
+++ b/dav/sync.c	Thu Aug 03 14:32:36 2017 +0200
@@ -302,6 +302,8 @@
     
     UcxMap *svrres = ucx_map_new(db->resources->count);
     
+    UcxList *statls = NULL;
+    
     UcxList *stack = ucx_list_prepend(NULL, ls->children);
     while(stack) {
         DavResource *res = stack->data;
@@ -332,6 +334,11 @@
             ucx_map_cstr_put(svrres, res->path, local);
             ucx_map_cstr_remove(db->resources, res->path);
             
+            if(local->last_modified == 0) {
+                // stat this file later (directory)
+                statls = ucx_list_prepend(statls, local);
+            }
+            
             if(res->children) {
                 stack = ucx_list_prepend(stack, res->children);
             }
@@ -339,6 +346,18 @@
         }
     }
     
+    // stat all files with unknown lastmodified date
+    UCX_FOREACH(elm, statls) {
+        LocalResource *l = elm->data;
+        char *local_path = util_concat_path(dir->path, l->path);
+        struct stat s;
+        if(!stat(local_path, &s)) {
+            l->last_modified = s.st_mtime;
+        }
+        free(local_path);
+    }
+    ucx_list_free(statls);
+    
     // delete every remotely removed resource
     UcxMapIterator i = ucx_map_iterator(db->resources);
     LocalResource *local;
@@ -408,6 +427,7 @@
     
     char *etag = dav_get_property(res, "D:getetag");
     struct stat s;
+    memset(&s, 0, sizeof(struct stat));
     if(local && !res->iscollection) {
         int exists = 1;
         if(stat(local_path, &s)) {
@@ -465,7 +485,7 @@
                 // new local resource
                 local = calloc(1, sizeof(LocalResource));
                 local->path = util_concat_path(res->path, "/");
-                local->last_modified = s.st_mtime;
+                local->last_modified = 0;
                 ucx_map_cstr_put(db->resources, local->path, local);
             }
         }