Hooks

- ::onExit now provides a set of all changeѕ tasks to the hook script, in
  read-only form.

src/Hooks.cpp

@@ -157,11 +157,18 @@ void Hooks::onExit ()
 
   context.timer_hooks.start ();
 
+  std::vector <Task> changes;
+  context.tdb2.get_changes (changes);
+
+  std::string input;
+  std::vector <Task>::const_iterator t;
+  for (t = changes.begin (); t != changes.end (); ++t)
+    input += t->composeJSON () + "\n";
+
   std::vector <std::string> matchingScripts = scripts ("on-exit");
   std::vector <std::string>::iterator i;
   for (i = matchingScripts.begin (); i != matchingScripts.end (); ++i)
   {
-    std::string input;
     std::string output;
     std::vector <std::string> args;
     int status = execute (*i, args, input, output);

src/TDB2.cpp

@@ -671,6 +671,8 @@ void TDB2::commit ()
   dump ();
   context.timer_commit.start ();
 
+  gather_changes ();
+
   pending.commit ();
   completed.commit ();
   undo.commit ();
@@ -688,6 +690,30 @@ void TDB2::commit ()
   context.timer_commit.stop ();
 }
 
+////////////////////////////////////////////////////////////////////////////////
+void TDB2::gather_changes ()
+{
+  _changes.clear ();
+  std::vector <Task>::iterator i;
+  for (i = pending._added_tasks.begin (); i != pending._added_tasks.end (); ++i)
+    _changes.push_back (*i);
+
+  for (i = pending._modified_tasks.begin (); i != pending._modified_tasks.end (); ++i)
+    _changes.push_back (*i);
+
+  for (i = completed._added_tasks.begin (); i != completed._added_tasks.end (); ++i)
+    _changes.push_back (*i);
+
+  for (i = completed._modified_tasks.begin (); i != completed._modified_tasks.end (); ++i)
+    _changes.push_back (*i);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+void TDB2::get_changes (std::vector <Task>& changes)
+{
+  changes = _changes;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 void TDB2::revert ()
 {

src/TDB2.h

@@ -103,6 +103,7 @@ public:
   void add (Task&, bool add_to_backlog = true);
   void modify (Task&, bool add_to_backlog = true);
   void commit ();
+  void get_changes (std::vector <Task>&);
   void revert ();
   int  gc ();
   int  next_id ();
@@ -126,6 +127,7 @@ public:
   void dump ();
 
 private:
+  void gather_changes ();
   void update (const std::string&, Task&, const bool, std::vector <Task>&);
   bool verifyUniqueUUID (const std::string&);
   void show_diff (const std::string&, const std::string&, const std::string&);
@@ -141,8 +143,9 @@ public:
   TF2 backlog;
 
 private:
-  std::string _location;
-  int _id;
+  std::string        _location;
+  int                _id;
+  std::vector <Task> _changes;
 };
 
 #endif