Command - count

- Migrated handleCount to CmdCount.

src/commands/CmdCount.cpp

@@ -0,0 +1,69 @@
+////////////////////////////////////////////////////////////////////////////////
+// taskwarrior - a command line task list manager.
+//
+// Copyright 2006 - 2011, Paul Beckingham, Federico Hernandez.
+// All rights reserved.
+//
+// This program is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free Software
+// Foundation; either version 2 of the License, or (at your option) any later
+// version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+// details.
+//
+// You should have received a copy of the GNU General Public License along with
+// this program; if not, write to the
+//
+//     Free Software Foundation, Inc.,
+//     51 Franklin Street, Fifth Floor,
+//     Boston, MA
+//     02110-1301
+//     USA
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#include <sstream>
+#include <Context.h>
+#include <main.h>
+#include <CmdCount.h>
+
+extern Context context;
+
+////////////////////////////////////////////////////////////////////////////////
+CmdCount::CmdCount ()
+{
+  _keyword     = "count";
+  _usage       = "task count [<filter>]";
+  _description = "Shows only the number of matching tasks.";
+  _read_only   = true;
+  _displays_id = false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+int CmdCount::execute (const std::string& command_line, std::string& output)
+{
+  // Scan the pending tasks, applying any filter.
+  std::vector <Task> tasks;
+  context.tdb.lock (context.config.getBoolean ("locking"));
+  handleRecurrence ();
+  context.tdb.load (tasks, context.filter);
+  context.tdb.commit ();
+  context.tdb.unlock ();
+
+  // Find number of matching tasks.  Skip recurring parent tasks.
+  int count = 0;
+  std::vector <Task>::iterator it;
+  for (it = tasks.begin (); it != tasks.end (); ++it)
+    if (it->getStatus () != Task::recurring)
+      ++count;
+
+  std::stringstream out;
+  out << count << "\n";
+  output = out.str ();
+  return 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////