Hob - BitBake GUI (v2)

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@@ -0,0 +1,278 @@
+#
+# BitBake Graphical GTK User Interface
+#
+# Copyright (C) 2011        Intel Corporation
+#
+# Authored by Joshua Lock <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# 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.
+
+import gobject
+import copy
+import re, os
+from bb import data
+
+class Configurator(gobject.GObject):
+
+    """
+    A GObject to handle writing modified configuration values back
+    to conf files.
+    """
+    __gsignals__ = {
+        "layers-loaded"  : (gobject.SIGNAL_RUN_LAST,
+                           gobject.TYPE_NONE,
+                           ()),
+        "layers-changed" : (gobject.SIGNAL_RUN_LAST,
+                            gobject.TYPE_NONE,
+                            ())
+    }
+
+    def __init__(self):
+        gobject.GObject.__init__(self)
+        self.local = None
+        self.bblayers = None
+        self.enabled_layers = {}
+        self.loaded_layers = {}
+        self.config = {}
+        self.orig_config = {}
+
+    # NOTE: cribbed from the cooker...
+    def _parse(self, f, data, include=False):
+        try:
+            return bb.parse.handle(f, data, include)
+        except (IOError, bb.parse.ParseError) as exc:
+            parselog.critical("Unable to parse %s: %s" % (f, exc))
+            sys.exit(1)
+
+    def _loadLocalConf(self, path):
+        def getString(var):
+            return bb.data.getVar(var, data, True) or ""
+
+        self.local = path
+
+        if self.orig_config:
+            del self.orig_config
+            self.orig_config = {}
+
+        data = bb.data.init()
+        data = self._parse(self.local, data)
+
+        # We only need to care about certain variables
+        mach = getString('MACHINE')
+        if mach and mach != self.config.get('MACHINE', ''):
+            self.config['MACHINE'] = mach
+        sdkmach = getString('SDKMACHINE')
+        if sdkmach and sdkmach != self.config.get('SDKMACHINE', ''):
+            self.config['SDKMACHINE'] = sdkmach
+        distro = getString('DISTRO')
+        if distro and distro != self.config.get('DISTRO', ''):
+            self.config['DISTRO'] = distro
+        bbnum = getString('BB_NUMBER_THREADS')
+        if bbnum and bbnum != self.config.get('BB_NUMBER_THREADS', ''):
+            self.config['BB_NUMBER_THREADS'] = bbnum
+        pmake = getString('PARALLEL_MAKE')
+        if pmake and pmake != self.config.get('PARALLEL_MAKE', ''):
+            self.config['PARALLEL_MAKE'] = pmake
+        incompat = getString('INCOMPATIBLE_LICENSE')
+        if incompat and incompat != self.config.get('INCOMPATIBLE_LICENSE', ''):
+            self.config['INCOMPATIBLE_LICENSE'] = incompat
+        pclass = getString('PACKAGE_CLASSES')
+        if pclass and pclass != self.config.get('PACKAGE_CLASSES', ''):
+            self.config['PACKAGE_CLASSES'] = pclass
+
+        self.orig_config = copy.deepcopy(self.config)
+
+    def setLocalConfVar(self, var, val):
+        if var in self.config:
+            self.config[var] = val
+
+    def _loadLayerConf(self, path):
+        self.bblayers = path
+        self.enabled_layers = {}
+        self.loaded_layers = {}
+        data = bb.data.init()
+        data = self._parse(self.bblayers, data)
+        layers = (bb.data.getVar('BBLAYERS', data, True) or "").split()
+        for layer in layers:
+            # TODO: we may be better off calling the layer by its
+            # BBFILE_COLLECTIONS value?
+            name = self._getLayerName(layer)
+            self.loaded_layers[name] = layer
+
+        self.enabled_layers = copy.deepcopy(self.loaded_layers)
+        self.emit("layers-loaded")
+
+    def _addConfigFile(self, path):
+        pref, sep, filename = path.rpartition("/")
+        if filename == "local.conf" or filename == "hob.local.conf":
+            self._loadLocalConf(path)
+        elif filename == "bblayers.conf":
+            self._loadLayerConf(path)
+
+    def _splitLayer(self, path):
+        # we only care about the path up to /conf/layer.conf
+        layerpath, conf, end = path.rpartition("/conf/")
+        return layerpath
+
+    def _getLayerName(self, path):
+        # Should this be the collection name?
+        layerpath, sep, name = path.rpartition("/")
+        return name
+
+    def disableLayer(self, layer):
+        if layer in self.enabled_layers:
+            del self.enabled_layers[layer]
+
+    def addLayerConf(self, confpath):
+        layerpath = self._splitLayer(confpath)
+        name = self._getLayerName(layerpath)
+        if name not in self.enabled_layers:
+            self.addLayer(name, layerpath)
+        return name, layerpath
+
+    def addLayer(self, name, path):
+        self.enabled_layers[name] = path
+
+    def _isLayerConfDirty(self):
+        # if a different number of layers enabled to what was
+        # loaded, definitely different
+        if len(self.enabled_layers) != len(self.loaded_layers):
+            return True
+
+        for layer in self.loaded_layers:
+            # if layer loaded but no longer present, definitely dirty
+            if layer not in self.enabled_layers:
+                return True
+
+        for layer in self.enabled_layers:
+            # if this layer wasn't present at load, definitely dirty
+            if layer not in self.loaded_layers:
+                return True
+            # if this layers path has changed, definitely dirty
+            if self.enabled_layers[layer] != self.loaded_layers[layer]:
+                return True
+
+        return False
+
+    def _constructLayerEntry(self):
+        """
+        Returns a string representing the new layer selection
+        """
+        layers = self.enabled_layers.copy()
+        # Construct BBLAYERS entry
+        layer_entry = "BBLAYERS = \" \\\n"
+        if 'meta' in layers:
+            layer_entry = layer_entry + "  %s \\\n" % layers['meta']
+            del layers['meta']
+        for layer in layers:
+            layer_entry = layer_entry + "  %s \\\n" % layers[layer]
+        layer_entry = layer_entry + "  \""
+
+        return "".join(layer_entry)
+
+    def writeLocalConf(self):
+        # Dictionary containing only new or modified variables
+        changed_values = {}
+        for var in self.config:
+            val = self.config[var]
+            if self.orig_config.get(var, None) != val:
+                changed_values[var] = val
+
+        if not len(changed_values):
+            return
+
+        # Create a backup of the local.conf
+        bkup = "%s~" % self.local
+        os.rename(self.local, bkup)
+
+        # read the original conf into a list
+        with open(bkup, 'r') as config:
+            config_lines = config.readlines()
+
+        new_config_lines = ["\n"]
+        for var in changed_values:
+            # Convenience function for re.subn(). If the pattern matches
+            # return a string which contains an assignment using the same
+            # assignment operator as the old assignment.
+            def replace_val(matchobj):
+                var = matchobj.group(1) # config variable
+                op = matchobj.group(2) # assignment operator
+                val = changed_values[var] # new config value
+                return "%s %s \"%s\"" % (var, op, val)
+
+            pattern = '^\s*(%s)\s*([+=?.]+)(.*)' % re.escape(var)
+            p = re.compile(pattern)
+            cnt = 0
+            replaced = False
+
+            # Iterate over the local.conf lines and if they are a match
+            # for the pattern comment out the line and append a new line
+            # with the new VAR op "value" entry
+            for line in config_lines:
+                new_line, replacements = p.subn(replace_val, line)
+                if replacements:
+                    config_lines[cnt] = "#%s" % line
+                    new_config_lines.append(new_line)
+                    replaced = True
+                cnt = cnt + 1
+
+            if not replaced:
+                new_config_lines.append("%s = \"%s\"" % (var, changed_values[var]))
+
+        # Add the modified variables
+        config_lines.extend(new_config_lines)
+
+        # Write the updated lines list object to the local.conf
+        with open(self.local, "w") as n:
+            n.write("".join(config_lines))
+
+        del self.orig_config
+        self.orig_config = copy.deepcopy(self.config)
+
+    def writeLayerConf(self):
+        # If we've not added/removed new layers don't write
+        if not self._isLayerConfDirty():
+            return
+
+        # This pattern should find the existing BBLAYERS
+        pattern = 'BBLAYERS\s=\s\".*\"'
+
+        # Backup the users bblayers.conf
+        bkup = "%s~" % self.bblayers
+        os.rename(self.bblayers, bkup)
+
+        replacement = self._constructLayerEntry()
+
+        with open(bkup, "r") as f:
+            contents = f.read()
+            p = re.compile(pattern, re.DOTALL)
+            new = p.sub(replacement, contents)
+
+        with open(self.bblayers, "w") as n:
+            n.write(new)
+
+        # At some stage we should remove the backup we've created
+        # though we should probably verify it first
+        #os.remove(bkup)
+
+        # set loaded_layers for dirtiness tracking
+        self.loaded_layers = copy.deepcopy(self.enabled_layers)
+
+        self.emit("layers-changed")
+
+    def configFound(self, handler, path):
+        self._addConfigFile(path)
+
+    def loadConfig(self, path):
+        self._addConfigFile(path)

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index 70fd57e..bdab340 100644
@@ -47,12 +47,18 @@ class RunningBuildModel (gtk.TreeStore):
 
 class RunningBuild (gobject.GObject):
     __gsignals__ = {
+          'build-started' : (gobject.SIGNAL_RUN_LAST,
+                               gobject.TYPE_NONE,
+                               ()),
           'build-succeeded' : (gobject.SIGNAL_RUN_LAST,
                                gobject.TYPE_NONE,
                                ()),
           'build-failed' : (gobject.SIGNAL_RUN_LAST,
                             gobject.TYPE_NONE,
-                            ())
+                            ()),
+          'build-complete' : (gobject.SIGNAL_RUN_LAST,
+                              gobject.TYPE_NONE,
+                              ())
           }
     pids_to_task = {}
     tasks_to_iter = {}

@@ -201,6 +207,7 @@ class RunningBuild (gobject.GObject):
 
         elif isinstance(event, bb.event.BuildStarted):
 
+            self.emit("build-started")
             self.model.prepend(None, (None,
                                       None,
                                       None,

@@ -218,6 +225,9 @@ class RunningBuild (gobject.GObject):
                                       Colors.OK,
                                       0))
 
+            # Emit a generic "build-complete" signal for things wishing to
+            # handle when the build is finished
+            self.emit("build-complete")
             # Emit the appropriate signal depending on the number of failures
             if (failures >= 1):
                 self.emit ("build-failed")

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