Some enhancements to package manager

- So not update macros while installing: avoids
  transient error messages
- Offer to autorun macros also after package
  update (so far only on package new installation)

src/lay/lay/layMacroController.cc

@@ -385,9 +385,9 @@ MacroController::sync_implicit_macros (bool ask_before_autorun)
   } else {
 
     //  determine the paths currently in use
-    std::map<std::string, const ExternalPathDescriptor *> prev_folders_by_path;
+    std::map<std::string, ExternalPathDescriptor> prev_folders_by_path;
     for (std::vector<ExternalPathDescriptor>::const_iterator p = m_external_paths.begin (); p != m_external_paths.end (); ++p) {
-      prev_folders_by_path.insert (std::make_pair (p->path, p.operator-> ()));
+      prev_folders_by_path.insert (std::make_pair (p->path, *p));
     }
 
     //  gets the external paths (tech, packages) into m_external_paths
@@ -433,23 +433,39 @@ MacroController::sync_implicit_macros (bool ask_before_autorun)
 
     for (std::vector<ExternalPathDescriptor>::const_iterator p = m_external_paths.begin (); p != m_external_paths.end (); ++p) {
 
-      if (prev_folders_by_path.find (p->path) != prev_folders_by_path.end ()) {
-        continue;
-      }
+      auto pf = prev_folders_by_path.find (p->path);
+      if (pf != prev_folders_by_path.end ()) {
 
-      if (tl::verbosity () >= 20) {
-        tl::info << "Adding macro folder " << p->path << ", category '" << p->cat << "' for '" << p->description << "'";
-      }
+        if (pf->second.version != p->version) {
 
-      //  Add the folder. Note: it may happen that a macro folder for the tech specific macros already exists in
-      //  a non-tech context.
-      //  In that case, the add_folder method will return 0.
+          if (tl::verbosity () >= 20) {
+            tl::info << "New version (" << p->version << " vs. " << pf->second.version << ") of macro folder " << p->path << ", category '" << p->cat << "' for '" << p->description << "'";
+          }
+
+          lym::MacroCollection *mc = lym::MacroCollection::root ().folder_by_name (p->path);
+          if (mc) {
+            new_folders.push_back (mc);
+          }
+
+        }
+
+      } else {
+
+        if (tl::verbosity () >= 20) {
+          tl::info << "Adding macro folder " << p->path << ", category '" << p->cat << "' for '" << p->description << "'";
+        }
+
+        //  Add the folder. Note: it may happen that a macro folder for the tech specific macros already exists in
+        //  a non-tech context.
+        //  In that case, the add_folder method will return 0.
+
+        //  TODO: is it wise to make this writeable?
+        lym::MacroCollection *mc = lym::MacroCollection::root ().add_folder (p->description, p->path, p->cat, p->readonly);
+        if (mc) {
+          mc->set_virtual_mode (p->type);
+          new_folders.push_back (mc);
+        }
 
-      //  TODO: is it wise to make this writeable?
-      lym::MacroCollection *mc = lym::MacroCollection::root ().add_folder (p->description, p->path, p->cat, p->readonly);
-      if (mc) {
-        mc->set_virtual_mode (p->type);
-        new_folders.push_back (mc);
       }
 
     }
@@ -565,7 +581,7 @@ MacroController::sync_macro_sources ()
             if (*f != macro_categories () [c].name) {
               description += " - " + tl::to_string (tr ("%1 branch").arg (tl::to_qstring (*f)));
             }
-            external_paths.push_back (ExternalPathDescriptor (tl::to_string (macro_dir.path ()), description, macro_categories () [c].name, lym::MacroCollection::SaltFolder, g->is_readonly ()));
+            external_paths.push_back (ExternalPathDescriptor (tl::to_string (macro_dir.path ()), description, macro_categories () [c].name, lym::MacroCollection::SaltFolder, g->is_readonly (), g->version ()));
 
           }
 

src/lay/lay/layMacroController.h

@@ -204,8 +204,8 @@ private:
    */
   struct ExternalPathDescriptor
   {
-    ExternalPathDescriptor (const std::string &_path, const std::string &_description, const std::string &_cat, lym::MacroCollection::FolderType _type, bool _readonly)
-      : path (_path), description (_description), cat (_cat), type (_type), readonly (_readonly)
+    ExternalPathDescriptor (const std::string &_path, const std::string &_description, const std::string &_cat, lym::MacroCollection::FolderType _type, bool _readonly, const std::string &_version = std::string ())
+      : path (_path), description (_description), cat (_cat), type (_type), version (_version), readonly (_readonly)
     {
       //  .. nothing yet ..
     }
@@ -214,6 +214,7 @@ private:
     std::string description;
     std::string cat;
     lym::MacroCollection::FolderType type;
+    std::string version;
     bool readonly;
   };
 

src/lay/lay/laySaltController.cc

@@ -26,6 +26,7 @@
 #include "layConfig.h"
 #include "layMainWindow.h"
 #include "layQtTools.h"
+#include "layBusy.h"
 #include "tlLog.h"
 
 #include <QDir>
@@ -138,11 +139,12 @@ SaltController::show_editor ()
       lay::restore_dialog_state (mp_salt_dialog, s);
     }
 
-    //  while running the dialog, don't watch file events - that would interfere with
-    //  the changes applied by the dialog itself.
-    m_file_watcher->enable (false);
-    mp_salt_dialog->exec ();
-    m_file_watcher->enable (true);
+    {
+      //  while running the dialog, don't watch file events - that would interfere with
+      //  the changes applied by the dialog itself.
+      lay::BusySection busy_section;  //  disable file watcher
+      mp_salt_dialog->exec ();
+    }
 
     mp_plugin_root->config_set (cfg_salt_manager_window_state, lay::save_dialog_state (mp_salt_dialog));
 
@@ -154,13 +156,13 @@ SaltController::show_editor ()
 void
 SaltController::sync_file_watcher ()
 {
+  lay::BusySection busy_section;  //  disable file watcher
+
   if (m_file_watcher) {
     m_file_watcher->clear ();
-    m_file_watcher->enable (false);
     for (lay::Salt::flat_iterator g = m_salt.begin_flat (); g != m_salt.end_flat (); ++g) {
       m_file_watcher->add_file ((*g)->path ());
     }
-    m_file_watcher->enable (true);
   }
 }
 
@@ -216,7 +218,18 @@ SaltController::install_packages (const std::vector<std::string> &packages, bool
     manager.compute_packages (m_salt, salt_mine);
   }
 
-  return manager.execute (0, m_salt);
+  bool result = false;
+
+  {
+    //  while running the dialog, don't watch file events - that would interfere with
+    //  the changes applied by the dialog itself.
+    lay::BusySection busy_section;  //  disable file watcher
+    result = manager.execute (0, m_salt);
+  }
+
+  sync_file_watcher ();
+
+  return result;
 }
 
 void

src/layui/layui/layBusy.cc

@@ -24,6 +24,7 @@
 
 #include "layBusy.h"
 #include "tlThreads.h"
+#include "tlFileSystemWatcher.h"
 
 namespace lay
 {
@@ -61,6 +62,9 @@ BusySection::BusySection ()
     m_previous_mode = mp_busy_mode->is_busy ();
     mp_busy_mode->enter_busy_mode (true);
   }
+
+  //  disable file system watchers during busy periods
+  tl::FileSystemWatcher::global_enable (false);
 }
 
 BusySection::~BusySection ()
@@ -70,6 +74,8 @@ BusySection::~BusySection ()
     mp_busy_mode->enter_busy_mode (m_previous_mode);
   }
   mp_busy_mode = 0;
+
+  tl::FileSystemWatcher::global_enable (true);
 }
 
 bool 

src/tl/tl/tlFileSystemWatcher.cc

@@ -31,6 +31,9 @@
 namespace tl
 {
 
+//  The global enable counter (<0: disable)
+static int s_global_enable = 0;
+
 //  The maximum allowed processing time in seconds
 const double processing_time = 0.02;
 
@@ -47,6 +50,16 @@ FileSystemWatcher::FileSystemWatcher (QObject *parent)
   m_batch_size = 1000;
 }
 
+void
+FileSystemWatcher::global_enable (bool en)
+{
+  if (en) {
+    ++s_global_enable;
+  } else {
+    --s_global_enable;
+  }
+}
+
 void
 FileSystemWatcher::enable (bool en)
 {
@@ -120,6 +133,10 @@ FileSystemWatcher::remove_file (const std::string &path)
 void
 FileSystemWatcher::timeout ()
 {
+  if (s_global_enable < 0) {
+    return;
+  }
+
   tl::Clock start = tl::Clock::current ();
 
   if (m_iter == m_files.end ()) {

src/tl/tl/tlFileSystemWatcher.h

@@ -57,6 +57,11 @@ public:
    */
   FileSystemWatcher (QObject *parent = 0);
 
+  /**
+   *  @brief Global enable/disable
+   */
+  static void global_enable (bool en);
+
   /**
    *  @brief Enables or disables the file watcher
    */