Support release tag (#36)

Author: david-aimsun

include/crow/crow.hpp

@@ -161,6 +161,15 @@ class crow
      */
     const json& get_context() const;
 
+    /*!
+     * @brief set the code release id
+     *
+     * @param[in] release release id to add to the main context
+     *
+     * @since 0.0.7
+     */
+    void set_release(const std::string& release);
+
     /*!
      * @brief add elements to the "user" context for future events
      *

src/crow.cpp

@@ -237,6 +237,12 @@ const json& crow::get_context() const
     return m_payload;
 }
 
+void crow::set_release( const std::string & release )
+{
+    std::lock_guard<std::mutex> lock(m_payload_mutex);
+    m_payload["release"] = release;
+}
+
 void crow::add_user_context(const json& data)
 {
     std::lock_guard<std::mutex> lock(m_payload_mutex);