File read tables should not error on bad files (#783)

We have a variety of file reading tables that we use to parse configuration
data. Sometimes, we encounter badly formatted data. Instead of hard erroring
out, we should instead return what we can.

pkg/osquery/tables/dataflattentable/tables.go

@@ -99,7 +99,12 @@ func (t *Table) generate(ctx context.Context, queryContext table.QueryContext) (
 			for _, dataQuery := range tablehelpers.GetConstraints(queryContext, "query", tablehelpers.WithDefaults("*")) {
 				subresults, err := t.generatePath(filePath, dataQuery)
 				if err != nil {
-					return results, errors.Wrapf(err, "generating for path %s with query", filePath)
+					level.Info(t.logger).Log(
+						"msg", "failed to get data for path",
+						"path", filePath,
+						"err", err,
+					)
+					continue
 				}
 
 				results = append(results, subresults...)