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+/**
+ * Copyright (c) 2020, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @file archive_manager.hh
+ */
+
+#ifndef lnav_archive_manager_hh
+#define lnav_archive_manager_hh
+
+#include <atomic>
+#include <functional>
+#include <string>
+#include <utility>
+
+#include "base/result.h"
+#include "ghc/filesystem.hpp"
+
+namespace archive_manager {
+
+struct extract_progress {
+    extract_progress(ghc::filesystem::path path, ssize_t total)
+        : ep_path(std::move(path)), ep_total_size(total)
+    {
+    }
+
+    const ghc::filesystem::path ep_path;
+    const ssize_t ep_total_size;
+    std::atomic<size_t> ep_out_size{0};
+};
+
+using extract_cb
+    = std::function<extract_progress*(const ghc::filesystem::path&, ssize_t)>;
+
+bool is_archive(const ghc::filesystem::path& filename);
+
+ghc::filesystem::path filename_to_tmp_path(const std::string& filename);
+
+using walk_result_t = Result<void, std::string>;
+
+/**
+ *
+ * @feature f0:archive
+ *
+ * @param filename
+ * @param cb
+ * @return
+ */
+walk_result_t walk_archive_files(
+    const std::string& filename,
+    const extract_cb& cb,
+    const std::function<void(const ghc::filesystem::path&,
+                             const ghc::filesystem::directory_entry&)>&);
+
+void cleanup_cache();
+
+}  // namespace archive_manager
+
+#endif