bitbake: hob: make some layers non removable

- there are some layers which cannot be removed; so ,I have used
a new variable called BBLAYERS_NON_REMOVABLE located in bblayers.conf,
which contains those layers which cannot be deleted
- "meta-hob" layer is added to this variable in hob code, like it's
added to BBLAYERS var

[YOCTO #3176]
(Bitbake rev: 05da1621eed4c6201cd65372d229f63ea8a44b6e)

Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/crumbs/builder.py

@@ -172,6 +172,7 @@ class Configuration:
         # self.extra_setting/self.toolchain_build
         # bblayers.conf
         self.layers = params["layer"].split()
+        self.layers_non_removable = params["layers_non_removable"].split()
         self.default_task = params["default_task"]
 
         # proxy settings
@@ -1200,6 +1201,7 @@ class Builder(gtk.Window):
     def show_layer_selection_dialog(self):
         dialog = LayerSelectionDialog(title = "Layers",
                      layers = copy.deepcopy(self.configuration.layers),
+                     layers_non_removable = copy.deepcopy(self.configuration.layers_non_removable),
                      all_layers = self.parameters.all_layers,
                      parent = self,
                      flags = gtk.DIALOG_MODAL

bitbake/lib/bb/ui/crumbs/hig.py

@@ -1665,11 +1665,12 @@ class LayerSelectionDialog (CrumbsDialog):
     def add_leave_cb(self, button, event):
         self.im.set_from_file(hic.ICON_INDI_ADD_FILE)
 
-    def __init__(self, title, layers, all_layers, parent, flags, buttons=None):
+    def __init__(self, title, layers, layers_non_removable, all_layers, parent, flags, buttons=None):
         super(LayerSelectionDialog, self).__init__(title, parent, flags, buttons)
 
         # class members from other objects
         self.layers = layers
+        self.layers_non_removable = layers_non_removable
         self.all_layers = all_layers
         self.layers_changed = False
 
@@ -1709,10 +1710,7 @@ class LayerSelectionDialog (CrumbsDialog):
     """
     def draw_delete_button_cb(self, col, cell, model, it, tv):
         path =  model.get_value(it, 0)
-        # Trailing slashes are uncommon in bblayers.conf but confuse os.path.basename
-        path.rstrip('/')
-        name = os.path.basename(path)
-        if name == "meta" or name == "meta-hob":
+        if path in self.layers_non_removable:
             cell.set_sensitive(False)
             cell.set_property('pixbuf', None)
             cell.set_property('mode', gtk.CELL_RENDERER_MODE_INERT)
@@ -1730,11 +1728,8 @@ class LayerSelectionDialog (CrumbsDialog):
     """
     def draw_layer_path_cb(self, col, cell, model, it):
         path = model.get_value(it, 0)
-        name = os.path.basename(path)
-        if name == "meta":
-            cell.set_property('markup', "<b>Core layer for images: it cannot be removed</b>\n%s" % path)
-        elif name == "meta-hob":
-            cell.set_property('markup', "<b>Core layer for Hob: it cannot be removed</b>\n%s" % path)
+        if path in self.layers_non_removable:
+            cell.set_property('markup', "<b>It cannot be removed</b>\n%s" % path)
         else:
             cell.set_property('text', path)
 

bitbake/lib/bb/ui/crumbs/hobeventhandler.py

@@ -435,8 +435,11 @@ class HobHandler(gobject.GObject):
         params["core_base"] = self.runCommand(["getVariable", "COREBASE"]) or ""
         hob_layer = params["core_base"] + "/meta-hob"
         params["layer"] = self.runCommand(["getVariable", "BBLAYERS"]) or ""
+        params["layers_non_removable"] = self.runCommand(["getVariable", "BBLAYERS_NON_REMOVABLE"])
         if hob_layer not in params["layer"].split():
             params["layer"] += (" " + hob_layer)
+        if hob_layer not in params["layers_non_removable"].split():
+            params["layers_non_removable"] += (" " + hob_layer)
         params["dldir"] = self.runCommand(["getVariable", "DL_DIR"]) or ""
         params["machine"] = self.runCommand(["getVariable", "MACHINE"]) or ""
         params["distro"] = self.runCommand(["getVariable", "DISTRO"]) or "defaultsetup"