From 7020f7fc138ac9bad46f9f2b41150321f315f992 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Tue, 3 Jun 2014 09:23:31 +0200
Subject: [PATCH] added tee cmd

---
 passes/cmds/Makefile.inc |  1 +
 passes/cmds/tee.cc       | 88 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100644 passes/cmds/tee.cc

diff --git a/passes/cmds/Makefile.inc b/passes/cmds/Makefile.inc
index 77cac2b45..3a4b2da71 100644
--- a/passes/cmds/Makefile.inc
+++ b/passes/cmds/Makefile.inc
@@ -15,5 +15,6 @@ OBJS += passes/cmds/copy.o
 OBJS += passes/cmds/splice.o
 OBJS += passes/cmds/scc.o
 OBJS += passes/cmds/log.o
+OBJS += passes/cmds/tee.o
 OBJS += passes/cmds/connwrappers.o
 
diff --git a/passes/cmds/tee.cc b/passes/cmds/tee.cc
new file mode 100644
index 000000000..dd9591954
--- /dev/null
+++ b/passes/cmds/tee.cc
@@ -0,0 +1,88 @@
+/*
+ *  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/register.h"
+#include "kernel/rtlil.h"
+#include "kernel/log.h"
+
+struct TeePass : public Pass {
+	TeePass() : Pass("tee", "redirect command output to file") { }
+	virtual void help()
+	{
+		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+		log("\n");
+		log("    tee [-q] [-o logfile|-a logfile] cmd\n");
+		log("\n");
+		log("Execute the specified command, optionally writing the commands output to the\n");
+		log("specified logfile(s).\n");
+		log("\n");
+		log("    -q\n");
+		log("        Do not print output to the normal destination (console and/or log file)\n");
+		log("\n");
+		log("    -o logfile\n");
+		log("        Write output to this file, truncate if exists.\n");
+		log("\n");
+		log("    -a logfile\n");
+		log("        Write output to this file, append if exists.\n");
+		log("\n");
+	}
+	virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
+	{
+		std::vector<FILE*> backup_log_files, files_to_close;
+		backup_log_files = log_files;
+
+		size_t argidx;
+		for (argidx = 1; argidx < args.size(); argidx++)
+		{
+			if (args[argidx] == "-q" && files_to_close.empty()) {
+				log_files.clear();
+				continue;
+			}
+			if ((args[argidx] == "-o" || args[argidx] == "-a") && argidx+1 < args.size()) {
+				const char *open_mode = args[argidx] == "-o" ? "wt" : "at";
+				FILE *f = fopen(args[++argidx].c_str(), open_mode);
+				if (f == NULL) {
+					for (auto cf : files_to_close)
+						fclose(cf);
+					log_cmd_error("Can't create file %s.\n", args[argidx].c_str());
+				}
+				log_files.push_back(f);
+				files_to_close.push_back(f);
+				continue;
+			}
+			break;
+		}
+
+		try {
+			std::vector<std::string> new_args(args.begin() + argidx, args.end());
+			Pass::call(design, new_args);
+		} catch (int ex) {
+			for (auto cf : files_to_close)
+				fclose(cf);
+			log_files = backup_log_files;
+			throw ex;
+		}
+
+		for (auto cf : files_to_close)
+			fclose(cf);
+		log_files = backup_log_files;
+	}
+} TeePass;
+
-- 
2.30.2