fix for new non-COW std::strings

src/database.cpp

@@ -50,14 +50,14 @@ void Database::Statement::bindValue(int i, const char* e) {
     sqlite3_bind_text(stmt, i, e, -1, NULL);
 }
 
-void Database::Statement::bindValue(int i, std::string e) {
-    sqlite3_bind_blob(stmt, i, e.data(), e.size(), NULL);
+void Database::Statement::bindValue(int i, const std::string& e) {
+    sqlite3_bind_text(stmt, i, e.data(), e.size(), NULL);
 }
 
 template<> std::string Database::Statement::fetchColumn(int col) {
     int sz = sqlite3_column_bytes(stmt, col);
     std::string res(sz, '\0');
-    memcpy(&res[0], sqlite3_column_blob(stmt, col), sz);
+    memcpy(&res[0], sqlite3_column_text(stmt, col), sz);
     return res;
 }
 

src/database.h

@@ -55,9 +55,12 @@ private:
         ~Statement();
 
         // Bind several parameters in a single call. They are bound
-        // by index in the order passed into this function
+        // by index in the order passed into this function. Must be
+        // passed by reference because arguments may be std::strings,
+        // which must be passed by reference because sqlite requires
+        // the bound string's lifetime to exist until sqlite3_step
         template<typename...Args>
-        Statement& bind(Args...args) {
+        Statement& bind(const Args&...args) {
             return bindRecursive<Args...>(1, args...);
         }
         // Fetch columns. Supply a callback that will be executed for
@@ -100,7 +103,7 @@ private:
         bool row();
 
         template<typename T, typename...Args>
-        Statement& bindRecursive(int i, T v, Args...args) {
+        Statement& bindRecursive(int i, const T& v, const Args&...args) {
             bindValue(i, v); // specialization must exist for T
             return bindRecursive(i + 1, args...);
         }
@@ -112,7 +115,7 @@ private:
         // Bind value specializations
         void bindValue(int i, int e);
         void bindValue(int i, const char* e);
-        void bindValue(int i, std::string e);
+        void bindValue(int i, const std::string& e);
 
         // Declaration for fetch column interface,
         // intentionally missing definition

src/laminar.cpp

@@ -669,9 +669,10 @@ void Laminar::runFinished(Run * r) {
             (unsigned char*)&r->log[0], logsize);
     zipped.resize(zippedSize);
 
+    std::string reason = r->reason();
     db->stmt("INSERT INTO builds VALUES(?,?,?,?,?,?,?,?,?,?,?,?)")
      .bind(r->name, r->build, node->name, r->queuedAt, r->startedAt, completedAt, int(r->result),
-           zipped, logsize, r->parentName, r->parentBuild, r->reason())
+           zipped, logsize, r->parentName, r->parentBuild, reason)
      .exec();
 
     // notify clients