dump_modemlog: move all files to subdirectory

Since radioext has already moved to this folder, it doesn't make sense
for the base folder to be dump_modemlog. This change moves it to its
own subfolder so that we can also add more in the future.

Test: build and flash, trigger bugreport and check modem logs are there
Bug: 302435001
Change-Id: Ia83378074068526023f591d63b1e5ac4700b8103

modem/dump_modemlog/include/dumper.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include <ostream>
+#include <string_view>
+
+namespace pixel_modem::logging {
+
+/**
+ * @brief Data object for information about dumpings logs.
+ *
+ * @param src_dir is a const char* containing the path to the directory to be
+ copied.
+ * @param dest_dir is a const char* containing the path to the directory that
+ the contents of the source directory should be copied to.
+ * @param limit is an int of the maximum number of files to copy.
+ * @param prefix is a const char* containing a prefix that all files to be
+ copied should have.
+*/
+struct LogDumpInfo {
+  const std::string_view src_dir;
+  const std::string_view dest_dir;
+  int limit;
+  const std::string_view prefix;
+
+  friend bool operator==(const LogDumpInfo& lhs, const LogDumpInfo& rhs) {
+    return (lhs.limit == rhs.limit) && (lhs.src_dir == rhs.src_dir) &&
+           (lhs.dest_dir == rhs.dest_dir) && (lhs.prefix == rhs.prefix);
+  }
+
+  // Do I have to use .data() here?
+  friend std::ostream& operator<<(std::ostream& os, const LogDumpInfo& obj) {
+    os << "src_dir: " << obj.src_dir << ", dest_dir: " << obj.dest_dir
+       << ", limit: " << obj.limit << ", prefix: " << obj.prefix;
+    return os;
+  }
+};
+
+/**
+ * @brief Data object for information about dumpings logs.
+ *
+ * @param src_dir is a const char* containing the path to a file to be copied.
+ * @param dest_dir is a const char* containing the destination path for the file
+ * to be copied to.
+ */
+struct FileCopyInfo {
+  const std::string_view src_dir;
+  const std::string_view dest_dir;
+
+  friend bool operator==(const FileCopyInfo& lhs, const FileCopyInfo& rhs) {
+    return (lhs.src_dir == rhs.src_dir) && (lhs.dest_dir == rhs.dest_dir);
+  }
+
+  // Do I have to add .data() here?
+  friend std::ostream& operator<<(std::ostream& os, const FileCopyInfo& obj) {
+    os << "src_dir: " << obj.src_dir << ", dest_dir: " << obj.dest_dir;
+    return os;
+  }
+};
+
+/**
+ * @brief Interface for dumping modem logs and files.
+ */
+class Dumper {
+ public:
+  virtual ~Dumper() = default;
+  virtual void DumpLogs(const LogDumpInfo& log_dump_info);
+  virtual void CopyFile(const FileCopyInfo& file_copy_info);
+};
+
+}  // namespace pixel_modem::logging