fix #2575: reset/re-initialize environment variables for each build.

pisi/actionsapi/get.py

@@ -23,7 +23,7 @@ import pisi.actionsapi
 import pisi.context as ctx
 
 # ActionsAPI Modules
-from variables import glb
+import pisi.actionsapi.variables
 
 class BinutilsError(pisi.actionsapi.Error):
     def __init__(self, value=''):
@@ -32,8 +32,8 @@ class BinutilsError(pisi.actionsapi.Error):
         ctx.ui.error(value)
 
 # Globals                                
-env = glb.env
-dirs = glb.dirs
+env = pisi.actionsapi.variables.glb.env
+dirs = pisi.actionsapi.variables.glb.dirs
 
 def curDIR():
     '''returns current work directory's path'''

pisi/actionsapi/variables.py

@@ -74,13 +74,25 @@ class Dirs:
     localstate = 'var/lib'
     defaultprefix = 'usr'
 
-    values = ctx.config.values
-    kde = values.dirs.kde_dir
-    qt = values.dirs.qt_dir
+    # These should be owned by object not the class. Or else Python
+    # will bug us with NoneType errors because of uninitialized
+    # context (ctx) because of the import in build.py.
+    def __init__(self):
+        self.values = ctx.config.values
+        self.kde = self.values.dirs.kde_dir
+        self.qt = self.values.dirs.qt_dir
+
+
+# As we import this module from build.py, we can't init glb as a
+# singleton here.  Or else Python will bug us with NoneType errors
+# because of uninitialized context (ctx) because of exportFlags().
+#
+# We import this modue from build.py becase we need to reset/init glb
+# for each build. # See bug #2575
+glb = None
 
 def initVariables():
+    global glb
     ctx.env = Env()
     ctx.dirs = Dirs()
-    return ctx
-
-glb = initVariables()
+    glb = ctx

pisi/build.py

@@ -40,6 +40,8 @@ from pisi.metadata import MetaData
 from pisi.package import Package
 import pisi.component as component
 
+import pisi.actionsapi.variables
+
 
 class Error(pisi.Error):
     pass
@@ -202,6 +204,11 @@ class Builder:
 
     def set_environment_vars(self):
         """Sets the environment variables for actions API to use"""
+
+        # Each time a builder is created we must reset
+        # environment. See bug #2575
+        pisi.actionsapi.variables.initVariables()
+
         env = {
             "PKG_DIR": self.pkg_dir(),
             "WORK_DIR": self.pkg_work_dir(),