Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 27786)
+++ trunk/ippTools/src/difftool.c	(revision 27794)
@@ -58,4 +58,5 @@
 static bool tofullskyfileMode(pxConfig *config);
 static bool listrunMode(pxConfig *config);
+static bool setskyfiletoupdateMode(pxConfig *config);
 
 
@@ -103,4 +104,5 @@
         MODECASE(DIFFTOOL_MODE_TOFULLSKYFILE,         tofullskyfileMode);
         MODECASE(DIFFTOOL_MODE_LISTRUN,               listrunMode);
+        MODECASE(DIFFTOOL_MODE_SETSKYFILETOUPDATE,    setskyfiletoupdateMode);
 
         default:
@@ -822,48 +824,13 @@
     }
 
-    if (!psDBTransaction(config->dbh)) {
-        psError(PS_ERR_UNKNOWN, false, "database error");
-        psFree(where);
-        return false;
-    }
-
-    // Update state to 'new'
-    {
-        psString query = pxDataGet("difftool_revertdiffskyfile_update.sql");
-        if (!query) {
-            psError(PXTOOLS_ERR_SYS, false, "failed to retreive SQL statement");
-            if (!psDBRollback(config->dbh)) {
-                psError(PS_ERR_UNKNOWN, false, "database error");
-            }
-            return false;
-        }
-
-        if (psListLength(where->list)) {
-            psString whereClause = psDBGenerateWhereConditionSQL(where, NULL);
-            psStringAppend(&query, " AND %s", whereClause);
-            psFree(whereClause);
-        }
-
-        if (!p_psDBRunQuery(config->dbh, query)) {
-            psError(PS_ERR_UNKNOWN, false, "database error");
-            psFree(query);
-            if (!psDBRollback(config->dbh)) {
-                psError(PS_ERR_UNKNOWN, false, "database error");
-            }
-            return false;
-        }
-        psFree(query);
-
-        psLogMsg("difftool", PS_LOG_INFO, "Updated %" PRIu64 " rows", psDBAffectedRows(config->dbh));
-    }
-
-    // Delete product
     {
         psString query = pxDataGet("difftool_revertdiffskyfile_delete.sql");
         if (!query) {
             psError(PXTOOLS_ERR_SYS, false, "failed to retreive SQL statement");
-            if (!psDBRollback(config->dbh)) {
-                psError(PS_ERR_UNKNOWN, false, "database error");
-            }
+            return false;
+        }
+        psString query_updated = pxDataGet("difftool_revertdiffskyfile_updated.sql");
+        if (!query_updated) {
+            psError(PXTOOLS_ERR_SYS, false, "failed to retreive SQL statement");
             return false;
         }
@@ -872,4 +839,5 @@
             psString whereClause = psDBGenerateWhereConditionSQL(where, NULL);
             psStringAppend(&query, " AND %s", whereClause);
+            psStringAppend(&query_updated, " AND %s", whereClause);
             psFree(whereClause);
         }
@@ -878,20 +846,21 @@
             psError(PS_ERR_UNKNOWN, false, "database error");
             psFree(query);
-            if (!psDBRollback(config->dbh)) {
-                psError(PS_ERR_UNKNOWN, false, "database error");
-            }
             return false;
         }
         psFree(query);
-
         psLogMsg("difftool", PS_LOG_INFO, "Deleted %" PRIu64 " rows", psDBAffectedRows(config->dbh));
+
+        if (!p_psDBRunQuery(config->dbh, query_updated)) {
+            psError(PS_ERR_UNKNOWN, false, "database error");
+            psFree(query_updated);
+            return false;
+        }
+        psFree(query_updated);
+
+        psLogMsg("difftool", PS_LOG_INFO, "Updated %" PRIu64 " rows", psDBAffectedRows(config->dbh));
     }
 
     psFree(where);
 
-    if (!psDBCommit(config->dbh)) {
-        psError(PS_ERR_UNKNOWN, false, "database error");
-        return false;
-    }
 
     return true;
@@ -2370,4 +2339,5 @@
     psMetadata *where = psMetadataAlloc();
     PXOPT_COPY_S64(config->args, where, "-diff_id",   "diff_id",   "==");
+    PXOPT_COPY_STR(config->args, where, "-skycell_id", "skycell_id",   "==");
 
     if (!pxSetFaultCode(config->dbh, "diffSkyfile", where, fault)) {
@@ -2750,2 +2720,36 @@
     return true;
 }
+// a very specfic function to queue a cleaned warpSkyfile to be updated
+static bool setskyfiletoupdateMode(pxConfig *config)
+{
+    PS_ASSERT_PTR_NON_NULL(config, NULL);
+
+    PXOPT_LOOKUP_S64(diff_id, config->args, "-diff_id", true, false);
+    PXOPT_LOOKUP_STR(skycell_id, config->args, "-skycell_id", false, false);
+    PXOPT_LOOKUP_STR(label, config->args, "-set_label", false, false);
+
+    psString query = pxDataGet("difftool_setskyfiletoupdate.sql");
+    if (!query) {
+        psError(PXTOOLS_ERR_SYS, false, "failed to retreive SQL statement");
+        return false;
+    }
+
+    psString setHook = psStringCopy("");
+    if (label) {
+        psStringAppend(&setHook, "\n , diffRun.label = '%s'", label);
+    }
+
+    if (skycell_id) {
+        psStringAppend(&query, " AND (diffSkyfile.skycell_id = '%s')", skycell_id);
+    }
+
+    if (!p_psDBRunQueryF(config->dbh, query, setHook, diff_id)) {
+        psError(PS_ERR_UNKNOWN, false, "database error");
+        return false;
+    }
+
+    psFree(setHook);
+    psFree(query);
+
+    return true;
+}
Index: trunk/ippTools/src/difftool.h
===================================================================
--- trunk/ippTools/src/difftool.h	(revision 27786)
+++ trunk/ippTools/src/difftool.h	(revision 27794)
@@ -48,5 +48,6 @@
     DIFFTOOL_MODE_TOSCRUBBEDSKYFILE,
     DIFFTOOL_MODE_TOFULLSKYFILE,
-    DIFFTOOL_MODE_LISTRUN
+    DIFFTOOL_MODE_LISTRUN,
+    DIFFTOOL_MODE_SETSKYFILETOUPDATE,
 } difftoolMode;
 
Index: trunk/ippTools/src/difftoolConfig.c
===================================================================
--- trunk/ippTools/src/difftoolConfig.c	(revision 27786)
+++ trunk/ippTools/src/difftoolConfig.c	(revision 27794)
@@ -326,5 +326,6 @@
     psMetadata *updatediffskyfileArgs = psMetadataAlloc();
     psMetadataAddS64(updatediffskyfileArgs, PS_LIST_TAIL, "-diff_id", 0,      "define diff ID (required)", 0);
-    psMetadataAddS16(updatediffskyfileArgs, PS_LIST_TAIL, "-fault", 0,         "set fault code (required)", 0);
+    psMetadataAddS16(updatediffskyfileArgs, PS_LIST_TAIL, "-fault", 0,        "set fault code (required)", 0);
+    psMetadataAddStr(updatediffskyfileArgs, PS_LIST_TAIL, "-skycell_id", 0,   "search by skycell ID", NULL);
 
     // -tocleanedskyfile
@@ -348,4 +349,12 @@
     psMetadataAddStr(tofullskyfileArgs, PS_LIST_TAIL, "-skycell_id", 0, "skycell ID to update", NULL);
     psMetadataAddS64(tofullskyfileArgs, PS_LIST_TAIL, "-magicked",  0, "define magicked state", 0);
+
+    // -setskyfiletoupdate
+    psMetadata *setskyfiletoupdateArgs = psMetadataAlloc();
+    psMetadataAddS64(setskyfiletoupdateArgs, PS_LIST_TAIL, "-diff_id", 0,           "search by difftool ID (required)", 0);
+    psMetadataAddStr(setskyfiletoupdateArgs, PS_LIST_TAIL, "-skycell_id",  0,       "search by tessellation ID", NULL);
+    psMetadataAddStr(setskyfiletoupdateArgs, PS_LIST_TAIL, "-set_label",  0,        "new value for diffRun.label", NULL);
+
+
 
     // -exportrun
@@ -385,4 +394,6 @@
     PXOPT_ADD_MODE("-donecleanup",           "show runs that have been cleaned",     DIFFTOOL_MODE_DONECLEANUP,          donecleanupArgs);
     PXOPT_ADD_MODE("-updatediffskyfile",     "update fault code for a diffskyfile",  DIFFTOOL_MODE_UPDATEDIFFSKYFILE,          updatediffskyfileArgs);
+    PXOPT_ADD_MODE("-setskyfiletoupdate", "set cleaned skyfile to be updated", DIFFTOOL_MODE_SETSKYFILETOUPDATE, setskyfiletoupdateArgs);
+
     PXOPT_ADD_MODE("-exportrun",            "export run for import on other database", DIFFTOOL_MODE_EXPORTRUN, exportrunArgs);
     PXOPT_ADD_MODE("-importrun",            "import run from metadata file",           DIFFTOOL_MODE_IMPORTRUN, importrunArgs);