Move pipeline directory

tooling/pipeline/includes/web_client/curl_web_client.h

@@ -0,0 +1,54 @@
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_CURL_WEB_CLIENT_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_CURL_WEB_CLIENT_H_
+
+/**
+ * @file web_client/curl_web_client.h
+ * @brief libcurl-based WebClient implementation.
+ */
+
+#include "web_client/web_client.h"
+
+/**
+ * @brief RAII wrapper for curl_global_init and curl_global_cleanup.
+ *
+ * Create one instance in application startup before using libcurl and keep it
+ * alive for application lifetime.
+ */
+class CurlGlobalState {
+ public:
+  /// @brief Initializes global libcurl state.
+  CurlGlobalState();
+
+  /// @brief Cleans up global libcurl state.
+  ~CurlGlobalState();
+
+  /// @brief Non-copyable type.
+  CurlGlobalState(const CurlGlobalState&) = delete;
+
+  /// @brief Non-copyable type.
+  CurlGlobalState& operator=(const CurlGlobalState&) = delete;
+};
+
+/**
+ * @brief WebClient implementation backed by libcurl.
+ */
+class CURLWebClient : public WebClient {
+ public:
+  /**
+   * @brief Executes an HTTP GET request.
+   *
+   * @param url Request URL.
+   * @return Response body.
+   */
+  std::string Get(const std::string& url) override;
+
+  /**
+   * @brief URL-encodes a string value.
+   *
+   * @param value Raw value.
+   * @return URL-encoded string.
+   */
+  std::string UrlEncode(const std::string& value) override;
+};
+
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_CURL_WEB_CLIENT_H_