implements switch to abort a migration on an error

generator/default.properties

@@ -207,6 +207,7 @@ propel.sql.mapper.to = *.sql
 propel.migration.editor =
 propel.migration.table = propel_migration
 propel.migration.caseInsensitive = true
+propel.migration.abortOnError = false
 
 # -------------------------------------------------------------------
 #

generator/lib/task/BasePropelMigrationTask.php

@@ -93,6 +93,16 @@ public function getOutputDirectory()
         return $this->outputDirectory;
     }
 
+    /**
+     * Decides whether to abort the migration on error or not
+     *
+     * @return bool
+     */
+    protected function abortMigrationOnError()
+    {
+        return (bool) $this->getGeneratorConfig()->getBuildProperty('migrationAbortOnError');
+    }
+
     /**
      * Gets the GeneratorConfig object for this task or creates it on-demand.
      *

generator/lib/task/PropelMigrationTask.php

@@ -67,7 +67,12 @@ public function main()
                         $stmt->execute();
                         $res++;
                     } catch (PDOException $e) {
-                        $this->log(sprintf('Failed to execute SQL "%s"', $statement), Project::MSG_ERR);
+                        if (true === $this->abortMigrationOnError()) {
+                            $this->log(sprintf('Failed to execute SQL "%s". Aborting migration.', $statement), Project::MSG_ERR);
+                            return false;
+                        } else {
+                            $this->log(sprintf('Failed to execute SQL "%s"', $statement), Project::MSG_ERR);
+                        }
                         // continue
                     }
                 }