1 files changed, 76 insertions, 0 deletions
diff --git a/passes/cmds/write_file.cc b/passes/cmds/write_file.cc
new file mode 100644
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+++ b/passes/cmds/write_file.cc
@@ -0,0 +1,76 @@
+/*
+ *  yosys -- Yosys Open SYnthesis Suite
+ *
+ *  Copyright (C) 2014  Clifford Wolf <clifford@clifford.at>
+ *  Copyright (C) 2014  Johann Glaser <Johann.Glaser@gmx.at>
+ *
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "kernel/yosys.h"
+
+struct WriteFileFrontend : public Frontend {
+	WriteFileFrontend() : Frontend("=write_file", "write a text to a file") { }
+	virtual void help()
+	{
+		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+		log("\n");
+		log("    write_file [options] output_file [input_file]\n");
+		log("\n");
+		log("Write the text fron the input file to the output file.\n");
+		log("\n");
+		log("    -a\n");
+		log("        Append to output file (instead of overwriting)\n");
+		log("\n");
+		log("\n");
+		log("Inside a script the input file can also can a here-document:\n");
+		log("\n");
+		log("    write_file hello.txt <<EOT\n");
+		log("    Hello World!\n");
+		log("    EOT\n");
+		log("\n");
+	}
+	virtual void execute(std::istream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design*)
+	{
+		bool append_mode = false;
+		std::string output_filename;
+
+		size_t argidx;
+		for (argidx = 1; argidx < args.size(); argidx++)
+		{
+			if (args[argidx] == "-a") {
+				append_mode = true;
+				continue;
+			}
+			break;
+		}
+
+		if (argidx < args.size() && args[argidx].rfind("-", 0) != 0)
+			output_filename = args[argidx++];
+		else
+			log_cmd_error("Missing putput filename.\n");
+
+		extra_args(f, filename, args, argidx);
+
+		FILE *of = fopen(output_filename.c_str(), append_mode ? "a" : "w");
+		char buffer[64 * 1024];
+		size_t bytes;
+
+		while (0 < (bytes = f->readsome(buffer, sizeof(buffer))))
+			fwrite(buffer, bytes, 1, of);
+
+		fclose(of);
+	}
+} WriteFileFrontend;
+