implement before/after to declare dependencies and deprecate require

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>

--whitespace

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
This commit is contained in:
Steven Armstrong 2012-11-19 11:25:56 +01:00
parent 6d430524f1
commit 84770b9ef2
4 changed files with 38 additions and 7 deletions

View file

@ -186,6 +186,8 @@ class CdistObject(object):
return os.path.join(self.path, "explorer")
requirements = fsproperty.FileListProperty(lambda obj: os.path.join(obj.absolute_path, 'require'))
before = fsproperty.FileListProperty(lambda obj: os.path.join(obj.absolute_path, 'before'))
after = fsproperty.FileListProperty(lambda obj: os.path.join(obj.absolute_path, 'after'))
autorequire = fsproperty.FileListProperty(lambda obj: os.path.join(obj.absolute_path, 'autorequire'))
parameters = fsproperty.DirectoryDictProperty(lambda obj: os.path.join(obj.base_path, obj.parameter_path))
explorers = fsproperty.DirectoryDictProperty(lambda obj: os.path.join(obj.base_path, obj.explorer_path))

View file

@ -23,6 +23,7 @@
import argparse
import logging
import os
import warnings
import sys
import cdist
@ -92,8 +93,12 @@ class Emulator(object):
def commandline(self):
"""Parse command line"""
self.meta_parameters = dict.fromkeys(('after', 'before'))
meta_parser = argparse.ArgumentParser(add_help=False)
for meta_parameter in self.meta_parameters.keys():
meta_parser.add_argument('--%s' % meta_parameter, action='append', required=False)
parser = argparse.ArgumentParser(add_help=False, argument_default=argparse.SUPPRESS)
parser = argparse.ArgumentParser(add_help=False, parents=[meta_parser], argument_default=argparse.SUPPRESS)
for parameter in self.cdist_type.required_parameters:
argument = "--" + parameter
@ -119,6 +124,11 @@ class Emulator(object):
self.args = parser.parse_args(self.argv[1:])
self.log.debug('Args: %s' % self.args)
# Handle meta parameters
for meta_parameter in self.meta_parameters.keys():
if meta_parameter in self.args:
self.meta_parameters[meta_parameter] = getattr(self.args, meta_parameter)
delattr(self.args, meta_parameter)
def setup_object(self):
# Setup object_id - FIXME: unset / do not setup anymore!
@ -175,10 +185,18 @@ class Emulator(object):
def record_requirements(self):
"""record requirements"""
for key in ('before', 'after'):
if key in self.meta_parameters and self.meta_parameters[key]:
for value in self.meta_parameters[key]:
self.log.debug("Recording requirement: %s %s %s", self.cdist_object.name, key, value)
dependency_list = getattr(self.cdist_object, key)
# append to the object.after or object.before lists
dependency_list.append(value)
if "require" in self.env:
warnings.warn("The 'require' envrionment variable is deprecated. Use the --before and --after meta parameters to define dependencies.", category=PendingDeprecationWarning, stacklevel=2)
requirements = self.env['require']
self.log.debug("reqs = " + requirements)
for requirement in requirements.split(" "):
# Ignore empty fields - probably the only field anyway
if len(requirement) == 0: continue
@ -187,11 +205,10 @@ class Emulator(object):
cdist_object = self.cdist_object.object_from_name(requirement)
self.log.debug("Recording requirement: " + requirement)
# Save the sanitised version, not the user supplied one
# (__file//bar => __file/bar)
# This ensures pattern matching is done against sanitised list
self.cdist_object.requirements.append(cdist_object.name)
self.cdist_object.after.append(cdist_object.name)
def record_auto_requirements(self):
"""An object shall automatically depend on all objects that it defined in it's type manifest.

View file

@ -1,6 +1,6 @@
# -*- coding: utf-8 -*-
#
# 2011 Steven Armstrong (steven-cdist at armstrong.cc)
# 2011-2012 Steven Armstrong (steven-cdist at armstrong.cc)
#
# This file is part of cdist.
#
@ -109,10 +109,21 @@ class DependencyResolver(object):
raise RequirementNotFoundError(pattern)
def _preprocess_requirements(self):
"""Find all autorequire dependencies and merge them to be just requirements
for further processing.
"""Find all before, after and autorequire dependencies and merge them
to be just requirements for further processing.
"""
for cdist_object in self.objects.values():
if cdist_object.after:
cdist_object.requirements.extend(cdist_object.after)
# As we changed the object on disc, we have to ensure it is not
# preprocessed again if someone would call us multiple times.
cdist_object.after = []
if cdist_object.before:
for other_object in self.find_requirements_by_name(cdist_object.before):
other_object.requirements.append(cdist_object.name)
# As we changed the object on disc, we have to ensure it is not
# preprocessed again if someone would call us multiple times.
cdist_object.before = []
if cdist_object.autorequire:
# The objects (children) that this cdist_object (parent) defined
# in it's type manifest shall inherit all explicit requirements

View file

@ -87,6 +87,7 @@ class ObjectTestCase(test.CdistTestCase):
self.cdist_object.code_local = ''
self.cdist_object.code_remote = ''
self.cdist_object.state = ''
self.cdist_object.requirements = []
def test_name(self):
self.assertEqual(self.cdist_object.name, '__third/moon')