+
+void Tool::prepare(Tool *tool)
+{
+ if(!tool)
+ tool = this;
+ else if(tool->get_base_tool()!=this)
+ throw invalid_argument("Tool::prepare");
+
+ if(tool->prepared)
+ return;
+
+ tool->prepared = true;
+ if(!tool->command.empty())
+ tool->executable = builder.get_vfs().find_binary(tool->command);
+ do_prepare(*tool);
+ if(!command.empty() && !executable)
+ {
+ builder.get_logger().log("problems", "Can't find executable %s for %s", tool->command, tool->tag);
+ tool->problems.push_back(format("Can't find executable %s", tool->command));
+ }
+}
+
+string Tool::create_build_signature(const BuildInfo &) const
+{
+ if(executable)
+ return format("%s=%s", tag, FS::basename(executable->get_path()));
+ else
+ return string();
+}
+
+
+void operator>>(const LexicalConverter &conv, Tool::ProcessingUnit &unit)
+{
+ const string &str = conv.get();
+ if(str=="FILE")
+ unit = Tool::ONE_FILE;
+ else if(str=="DIRECTORY")
+ unit = Tool::DIRECTORY;
+ else if(str=="COMPONENT")
+ unit = Tool::COMPONENT;
+ else
+ throw lexical_error(format("conversion of '%s' to ProcessingUnit", str));
+}