# HG changeset patch
# User Olaf Wintermann <olaf.wintermann@gmail.com>
# Date 1541782997 -3600
# Node ID 7bde663719dc59f2ca6b1650c2c21f053cfcdf88
# Parent  fdc2fb090cc76f34f05f6796b3000dfcfbba4b6c
Adds dav-sync option for enabling versioning

diff -r fdc2fb090cc7 -r 7bde663719dc dav/sopt.c
--- a/dav/sopt.c	Sun Nov 04 16:35:44 2018 +0100
+++ b/dav/sopt.c	Fri Nov 09 18:03:17 2018 +0100
@@ -99,6 +99,9 @@
                         ucx_map_cstr_put(a->options, "restore-modified", NOARG);
                         break;
                     }
+                    case 'V': {
+                        ucx_map_cstr_put(a->options, "versioning", NOARG);
+                    }
                 }
             }
         } else if(option) {
diff -r fdc2fb090cc7 -r 7bde663719dc dav/sync.c
--- a/dav/sync.c	Sun Nov 04 16:35:44 2018 +0100
+++ b/dav/sync.c	Fri Nov 09 18:03:17 2018 +0100
@@ -175,8 +175,8 @@
     
     fprintf(stderr, "Commands:\n");
     fprintf(stderr, "        pull [-cldr] [-t <tags>] <directory>\n");
-    fprintf(stderr, "        push [-cldrRM] [-t <tags>] <directory>\n");
-    fprintf(stderr, "        archive [-cldRM] [-t <tags>] <directory>\n");
+    fprintf(stderr, "        push [-cldrVRM] [-t <tags>] <directory>\n");
+    fprintf(stderr, "        archive [-cldVRM] [-t <tags>] <directory>\n");
     fprintf(stderr, "        restore [-ld] <directory>\n");
     fprintf(stderr, "        resolve-conflicts <directory>\n");
     fprintf(stderr, "        delete-conflicts <directory>\n");
@@ -195,6 +195,7 @@
                     "Only sync files which have the specified tags\n");
     fprintf(stderr, "        -r         "
                     "Remove resources not matching the tag filter\n");
+    fprintf(stderr, "        -V         Enable versioning\n");
     fprintf(stderr, "        -R         Restore removed files\n");
     fprintf(stderr, "        -M         Restore modified files\n");
     fprintf(stderr, "        -v         Verbose output (all commands)\n\n");
@@ -989,6 +990,14 @@
     if(scfg_check_dir(dir)) {
         return -1;
     }
+    if(cmd_getoption(a, "versioning")) {
+        if(dir->versioning) {
+            dir->versioning->always = TRUE;
+        } else {
+            fprintf(stderr, "Error: versioning not configured for the sync directory\nAbort.\n");
+            return -1;
+        }
+    }
     
     int cmd = archive ? SYNC_CMD_ARCHIVE : SYNC_CMD_PUSH;
     if((dir->allow_cmd & cmd) != cmd) {
@@ -1213,7 +1222,7 @@
             if (!local->keep && !res_matches_filter(dir, local->path+1)) {
                 if(sync_shutdown) {
                     ucx_map_cstr_put(lclres, local->path, local_resource_copy(local));
-                } else if(sync_delete_remote_resource(sn, local, &sync_delete, &cols)) {
+                } else if(sync_delete_remote_resource(dir, sn, local, &sync_delete, &cols)) {
                     ucx_map_cstr_put(lclres, local->path, local_resource_copy(local));
                     if(sn->error != DAV_NOT_FOUND) {
                         print_resource_error(sn, local->path);
@@ -1231,7 +1240,7 @@
             if (!local->keep && !res_matches_filter(dir, local->path+1)) {
                 if(sync_shutdown) {
                     ucx_map_cstr_put(lclres, local->path, local_resource_copy(local));
-                } else if(sync_delete_remote_resource(sn, local, &sync_delete, NULL)) {
+                } else if(sync_delete_remote_resource(dir, sn, local, &sync_delete, NULL)) {
                     ucx_map_cstr_put(lclres, local->path, local_resource_copy(local));
                     if(sn->error != DAV_NOT_FOUND) {
                         print_resource_error(sn, local->path);
@@ -2095,7 +2104,7 @@
         
         dav_resource_free(history_collection);
     } else {
-        // Delta V is so much easier :) 
+        // DeltaV is so much easier :) 
         if(dav_checkout(res)) {
             ret = VBEGIN_ERROR_CHECKOUT;
         }
@@ -2110,6 +2119,12 @@
     }
 }
 
+int versioning_delete(SyncDirectory *dir, DavResource *res) {
+    if(dir->versioning->type == VERSIONING_SIMPLE) {
+        // TODO
+    }
+}
+
 int sync_put_resource(
         SyncDirectory *dir,
         DavResource *res,
@@ -2240,6 +2255,7 @@
 }
 
 int sync_delete_remote_resource(
+        SyncDirectory *dir,
         DavSession *sn,
         LocalResource *local_res,
         int *counter,
@@ -2276,7 +2292,17 @@
             // local resource metadata == remote resource metadata
             // resource can be deleted
             printf("delete: %s\n", res->path);
-            if(dav_delete(res)) {
+            
+            if(dir->versioning && dir->versioning->always) {
+                if(versioning_delete(dir, res)) {
+                    fprintf(
+                            stderr,
+                            "Cannot save resource version before deletion\n");
+                    ret = 1;
+                }
+            }
+            
+            if(!ret && dav_delete(res)) {
                 if(sn->error != DAV_NOT_FOUND) {
                     fprintf(stderr, "Cannot delete resource %s\n", res->path);
                     ret = 1;
diff -r fdc2fb090cc7 -r 7bde663719dc dav/sync.h
--- a/dav/sync.h	Sun Nov 04 16:35:44 2018 +0100
+++ b/dav/sync.h	Fri Nov 09 18:03:17 2018 +0100
@@ -116,7 +116,7 @@
         LocalResource *local,
         int *counter);
 int sync_mkdir(SyncDirectory *dir, DavResource *res, LocalResource *local);
-int sync_delete_remote_resource(DavSession *sn, LocalResource *res, int *counter, UcxList **cols);
+int sync_delete_remote_resource(SyncDirectory *dir, DavSession *sn, LocalResource *res, int *counter, UcxList **cols);
 int sync_update_tags(SyncDirectory *dir, DavSession *sn, DavResource *res, LocalResource *local);
 
 void remove_deleted_conflicts(SyncDirectory *dir, SyncDatabase *db);