Initial population

git-svn-id: https://svn.o-hand.com/repos/poky@2 311d38ba-8fff-0310-9ca6-ca027cbcb966

bitbake/lib/bb/event.py

@@ -0,0 +1,210 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Event' implementation
+
+Classes and functions for manipulating 'events' in the
+BitBake build tools.
+
+Copyright (C) 2003, 2004  Chris Larson
+
+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., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA. 
+"""
+
+import os, re
+import bb.data
+
+class Event:
+    """Base class for events"""
+    type = "Event"
+
+    def __init__(self, d = bb.data.init()):
+        self._data = d
+
+    def getData(self):
+        return self._data
+
+    def setData(self, data):
+        self._data = data
+
+    data = property(getData, setData, None, "data property")
+
+NotHandled = 0
+Handled = 1
+handlers = []
+
+def tmpHandler(event):
+    """Default handler for code events"""
+    return NotHandled
+
+def defaultTmpHandler():
+    tmp = "def tmpHandler(e):\n\t\"\"\"heh\"\"\"\n\treturn 0"
+    comp = compile(tmp, "tmpHandler(e)", "exec")
+    return comp
+
+def fire(event):
+    """Fire off an Event"""
+    for h in handlers:
+        if type(h).__name__ == "code":
+            exec(h)
+            if tmpHandler(event) == Handled:
+                return Handled
+        else:
+            if h(event) == Handled:
+                return Handled
+    return NotHandled
+
+def register(handler):
+    """Register an Event handler"""
+    if handler is not None:
+#       handle string containing python code
+        if type(handler).__name__ == "str":
+            return registerCode(handler)
+#       prevent duplicate registration
+        if not handler in handlers:
+            handlers.append(handler)
+
+def registerCode(handlerStr):
+    """Register a 'code' Event.
+       Deprecated interface; call register instead.
+
+       Expects to be passed python code as a string, which will
+       be passed in turn to compile() and then exec().  Note that
+       the code will be within a function, so should have had
+       appropriate tabbing put in place."""
+    tmp = "def tmpHandler(e):\n%s" % handlerStr
+    comp = compile(tmp, "tmpHandler(e)", "exec")
+#   prevent duplicate registration
+    if not comp in handlers:
+        handlers.append(comp)
+
+def remove(handler):
+    """Remove an Event handler"""
+    for h in handlers:
+        if type(handler).__name__ == "str":
+            return removeCode(handler)
+
+        if handler is h:
+            handlers.remove(handler)
+
+def removeCode(handlerStr):
+    """Remove a 'code' Event handler
+       Deprecated interface; call remove instead."""
+    tmp = "def tmpHandler(e):\n%s" % handlerStr
+    comp = compile(tmp, "tmpHandler(e)", "exec")
+    handlers.remove(comp)
+
+def getName(e):
+    """Returns the name of a class or class instance"""
+    if getattr(e, "__name__", None) == None:
+        return e.__class__.__name__
+    else:
+        return e.__name__
+
+
+class PkgBase(Event):
+    """Base class for package events"""
+
+    def __init__(self, t, d = {}):
+        self._pkg = t
+        Event.__init__(self, d)
+
+    def getPkg(self):
+        return self._pkg
+
+    def setPkg(self, pkg):
+        self._pkg = pkg
+
+    pkg = property(getPkg, setPkg, None, "pkg property")
+
+
+class BuildBase(Event):
+    """Base class for bbmake run events"""
+
+    def __init__(self, n, p, c):
+        self._name = n
+        self._pkgs = p
+        Event.__init__(self, c)
+
+    def getPkgs(self):
+        return self._pkgs
+
+    def setPkgs(self, pkgs):
+        self._pkgs = pkgs
+
+    def getName(self):
+        return self._name
+
+    def setName(self, name):
+        self._name = name
+
+    def getCfg(self):
+        return self.data
+
+    def setCfg(self, cfg):
+        self.data = cfg
+
+    pkgs = property(getPkgs, setPkgs, None, "pkgs property")
+    name = property(getName, setName, None, "name property")
+    cfg = property(getCfg, setCfg, None, "cfg property")
+
+
+class DepBase(PkgBase):
+    """Base class for dependency events"""
+
+    def __init__(self, t, data, d):
+        self._dep = d
+        PkgBase.__init__(self, t, data)
+
+    def getDep(self):
+        return self._dep
+
+    def setDep(self, dep):
+        self._dep = dep
+
+    dep = property(getDep, setDep, None, "dep property")
+
+
+class PkgStarted(PkgBase):
+    """Package build started"""
+
+
+class PkgFailed(PkgBase):
+    """Package build failed"""
+
+
+class PkgSucceeded(PkgBase):
+    """Package build completed"""
+
+
+class BuildStarted(BuildBase):
+    """bbmake build run started"""
+
+
+class BuildCompleted(BuildBase):
+    """bbmake build run completed"""
+
+
+class UnsatisfiedDep(DepBase):
+    """Unsatisfied Dependency"""
+
+
+class RecursiveDep(DepBase):
+    """Recursive Dependency"""
+
+
+class MultipleProviders(PkgBase):
+    """Multiple Providers"""
+