Move ScannedFile class and associated globals into ScannedFile.h and out of Net.h and scan.l

src/ScannedFile.h

@@ -0,0 +1,44 @@
+// See the file "COPYING" in the main distribution directory for copyright.
+
+#pragma once
+
+#include <string>
+#include <list>
+#include <vector>
+
+namespace zeek::detail {
+
+// Script file we have already scanned (or are in the process of scanning).
+// They are identified by normalized realpath.
+class ScannedFile {
+
+public:
+
+	ScannedFile(int arg_include_level,
+	            std::string arg_name, bool arg_skipped = false,
+	            bool arg_prefixes_checked = false);
+
+	/**
+	 * Compares the canonical path of this file against every canonical path
+	 * in files_scanned and returns whether there's any match.
+	 */
+	bool AlreadyScanned() const;
+
+	int include_level;
+	bool skipped;		// This ScannedFile was @unload'd.
+	bool prefixes_checked;	// If loading prefixes for this file has been tried.
+	std::string name;
+	std::string canonical_path; // normalized, absolute path via realpath()
+
+	static auto constexpr canonical_stdin_path = "<stdin>";
+
+};
+
+extern std::list<ScannedFile> files_scanned;
+extern std::vector<std::string> sig_files;
+
+} // namespace zeek::detail
+
+using ScannedFile [[deprecated("Remove in v4.1. Use zeek::detail::ScannedFile.")]] = zeek::detail::ScannedFile;
+extern std::list<zeek::detail::ScannedFile>& files_scanned [[deprecated("Remove in v4.1. Use zeek::detail::files_scanned.")]];
+extern std::vector<std::string>& sig_files [[deprecated("Remove in v4.1. Use zeek::detail::sig_files.")]];