X-Git-Url: https://code.grnet.gr/git/snf-image-creator/blobdiff_plain/ae48a082b638284012de78a30c8374ba689eb0b7..3a5454e8e87fb67db96aafc9b14f10c971e4cca1:/image_creator/os_type/__init__.py

diff --git a/image_creator/os_type/__init__.py b/image_creator/os_type/__init__.py
index ab14356..fc06ff9 100644
--- a/image_creator/os_type/__init__.py
+++ b/image_creator/os_type/__init__.py
@@ -31,6 +31,9 @@
 # interpreted as representing official policies, either expressed
 # or implied, of GRNET S.A.
 
+from image_creator.util import output, FatalError
+
+import textwrap
 import re
 
 
@@ -41,12 +44,86 @@ def add_prefix(target):
     return wrapper
 
 
+def sysprep(enabled=True):
+    def wrapper(func):
+        func.sysprep = True
+        func.enabled = enabled
+        return func
+    return wrapper
+
+
 class OSBase(object):
     """Basic operating system class"""
+
     def __init__(self, rootdev, ghandler):
         self.root = rootdev
         self.g = ghandler
 
+    def _is_sysprep(self, obj):
+        return getattr(obj, 'sysprep', False) and callable(obj)
+
+    def list_syspreps(self):
+
+        objs = [getattr(self, name) for name in dir(self) \
+            if not name.startswith('_')]
+
+        enabled = [x for x in objs if self._is_sysprep(x) and x.enabled]
+        disabled = [x for x in objs if self._is_sysprep(x) and not x.enabled]
+
+        return enabled, disabled
+
+    def _sysprep_change_status(self, name, status):
+
+        error_msg = "Syprep operation %s does not exist for %s" % \
+                (name, self.__class__.__name__)
+
+        method_name = name.replace('-', '_')
+        method = None
+        try:
+            method = getattr(self, method_name)
+        except AttributeError:
+            raise FatalError(error_msg)
+
+        if not self._is_sysprep(method):
+            raise FatalError(error_msg)
+
+        setattr(method.im_func, 'enabled', status)
+
+    def enable_sysprep(self, name):
+        """Enable a system preperation operation"""
+        self._sysprep_change_status(name, True)
+
+    def disable_sysprep(self, name):
+        """Disable a system preperation operation"""
+        self._sysprep_change_status(name, False)
+
+    def print_syspreps(self):
+        """Print enabled and disabled system preperation operations."""
+
+        enabled, disabled = self.list_syspreps()
+
+        wrapper = textwrap.TextWrapper()
+        wrapper.subsequent_indent = '\t'
+        wrapper.initial_indent = '\t'
+
+        output("Enabled system preperation operations:")
+        if len(enabled) == 0:
+            output("(none)")
+        else:
+            for sysprep in enabled:
+                name = sysprep.__name__.replace('_', '-')
+                descr = wrapper.fill(sysprep.__doc__)
+                output('    %s:\n%s\n' % (name, descr))
+
+        output("Disabled system preperation operations:")
+        if len(disabled) == 0:
+            output("(none)")
+        else:
+            for sysprep in disabled:
+                name = sysprep.__name__.replace('_', '-')
+                descr = wrapper.fill(sysprep.__doc__)
+                output('    %s:\n%s\n' % (name, descr))
+
     @add_prefix
     def ls(self, directory):
         """List the name of all files under a directory"""
@@ -105,16 +182,22 @@ class OSBase(object):
         meta['ROOT_PARTITION'] = "%d" % self.g.part_to_partnum(self.root)
         meta['OSFAMILY'] = self.g.inspect_get_type(self.root)
         meta['OS'] = self.g.inspect_get_distro(self.root)
-        meta['description'] = self.g.inspect_get_product_name(self.root)
+        meta['DESCRIPTION'] = self.g.inspect_get_product_name(self.root)
 
         return meta
 
-    def data_cleanup(self):
-        """Cleanup sensitive data out of the OS image."""
-        raise NotImplementedError
-
-    def sysprep(self):
+    def do_sysprep(self):
         """Prepere system for image creation."""
-        raise NotImplementedError
+
+        output('Preparing system for image creation:')
+
+        tasks, _ = self.list_syspreps()
+        size = len(tasks)
+        cnt = 0
+        for task in tasks:
+            cnt += 1
+            output(('(%d/%d)' % (cnt, size)).ljust(7), False)
+            task()
+        output()
 
 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :