* unuttum :(

pisi/config.py

@@ -0,0 +1,49 @@
+from constants import const
+
+class Config(object):
+    """Config Singleton"""
+    
+    class configimpl:
+
+        def __init__(self):
+            # self.c.destdir = ''       # install default to root by default
+            self.destdir = './tmp'    # only for ALPHA
+            # the idea is that destdir can be set with --destdir=...
+
+        # directory accessor functions
+        # here is how it goes
+        # x_dir: system wide directory for storing info type x
+        # pkg_x_dir: per package directory for storing info type x
+
+        def lib_dir(self):
+            return self.destdir + const.lib_dir_suffix
+
+        def db_dir(self):
+            return self.destdir + const.db_dir_suffix
+
+        def archives_dir(self):
+            return self.destdir + const.archives_dir_suffix
+    
+        def tmp_dir(self):
+            return self.destdir + const.tmp_dir_suffix
+
+        def work_dir(self):
+            return self.destdir + const.work_dir_suffix
+
+        def install_dir(self):
+            return self.destdir + const.install_dir_suffix
+
+    __configinstance = configimpl()
+
+    def __init__(self):
+        pass
+
+    def __getattr__(self, attr):
+        return getattr(self.__configinstance, attr)
+
+    def __setattr__(self, attr, value):
+        return setattr(self.__configinstance, attr, value)
+
+
+# create a default context WITH NO PSPEC
+config = Config()

pisi/constants.py

@@ -0,0 +1,59 @@
+class _constant:
+    "Constant members implementation"
+    class ConstError(TypeError):
+        pass
+
+    def __setattr__(self, name, value):
+        if self.__dict__.has_key(name):
+            raise self.ConstError, "Can't rebind constant: %s" % name
+        # Binding an attribute once to a const is available
+        self.__dict__[name] = value
+
+    def __delattr__(self, name):
+        if self.__dict__.has_key(name):
+            raise self.ConstError, "Can't unbind constant: %s" % name
+        # we don't have an attribute by this name
+        raise NameError, name
+
+class Constants:
+    "Pisi constants"
+
+    __c = _constant()
+
+    def __init__(self):
+        # Metadata 
+        #TODO: These two will be defined in a configuration file.
+        self.__c.distribution = "Pardus"
+        self.__c.distributionRelease = "0.1"
+
+        self.__c.lib_dir_suffix = "/var/lib/pisi"
+        self.__c.db_dir_suffix = "/var/db/pisi"
+        self.__c.archives_dir_suffix = "/var/cache/pisi/archives"
+        self.__c.tmp_dir_suffix =  "/var/tmp/pisi"
+
+        # directory suffixes for build
+        self.__c.work_dir_suffix = "/work"
+        self.__c.install_dir_suffix  = "/install"
+
+        # file/directory names
+        self.__c.actions_file = "actions.py"
+        self.__c.files_dir = "files"
+        self.__c.files_xml = "files.xml"
+        self.__c.metadata_xml = "metadata.xml"
+
+        # functions in actions_file
+        self.__c.setup_func = "setup"
+        self.__c.build_func = "build"
+        self.__c.install_func = "install"
+
+    def __getattr__(self, attr):
+        return getattr(self.__c, attr)
+
+    def __setattr__(self, attr, value):
+        return setattr(self.__c, attr, value)
+
+    def __delattr__(self, attr):
+        return delattr(self.__c, attr)
+
+# singleton for easy access here
+const = Constants()