Try2 to make cdist honor the manifest order,

this implementation has some more lines of code,
but no collision with the require variable.
This commit is contained in:
Daniel Heule 2014-01-18 19:23:21 +01:00
parent 824381e6ca
commit 61aec12ba1
2 changed files with 38 additions and 20 deletions

View file

@ -154,8 +154,8 @@ class Emulator(object):
self.cdist_object.create()
self.cdist_object.parameters = self.parameters
# record the created object in typeorder file
with open(self.typeorder_path, 'a') as tofd:
tofd.write(self.cdist_object.name + os.linesep)
with open(self.typeorder_path, 'a') as typeorderfile:
print(self.cdist_object.name, file=typeorderfile)
# Record / Append source
self.cdist_object.source.append(self.object_source)
@ -184,6 +184,24 @@ class Emulator(object):
def record_requirements(self):
"""record requirements"""
#from pudb import set_trace; set_trace();
if "EXECUTE_TYPES_IN_CREATION_ORDER" in self.env and self.env['EXECUTE_TYPES_IN_CREATION_ORDER'] == 'true':
# load object name created bevor this one from typeorder file ...
with open(self.typeorder_path, 'r') as typecreationfile:
typecreationorder = typecreationfile.readlines()
# get the type created bevore this one ...
try:
lastcreatedtype = typecreationorder[-2].strip()
if 'require' in self.env:
self.env['require'] += " " + lastcreatedtype
else:
self.env['require'] = lastcreatedtype
self.log.debug("Injecting require for EXECUTE_TYPES_IN_CREATION_ORDER: %s for %s", lastcreatedtype, self.cdist_object.name)
except IndexError:
# if no second last line, we are on the first type, so do not set a requirement
pass
if "require" in self.env:
requirements = self.env['require']
@ -192,18 +210,6 @@ class Emulator(object):
# Ignore empty fields - probably the only field anyway
if len(requirement) == 0: continue
if requirement == "CDIST_HONOR_MANIFEST_ORDER":
# load object name created bevor this one from typeorder file ...
with open(self.typeorder_path, 'r') as tofd:
lines = tofd.readlines()
# replace the placeholder with the last created object
try:
requirement = lines[-2].strip()
except IndexError:
# if no second last line, we are on the first object, so do not set a requirement
continue
# Raises an error, if object cannot be created
try:
cdist_object = self.cdist_object.object_from_name(requirement)
@ -212,7 +218,7 @@ class Emulator(object):
raise
self.log.debug("Recording requirement: " + requirement)
self.log.debug("Recording requirement: %s", requirement)
# Save the sanitised version, not the user supplied one
# (__file//bar => __file/bar)

View file

@ -128,18 +128,30 @@ All objects that are created in a type manifest are automatically required
from the type that is calling them. This is called "autorequirement" in
cdist jargon.
EXECUTE_TYPES_IN_CREATION_ORDER is a EXPERIMENTAL FEATURE !
You can tell cdist to execute all types in the order in which they are created
in the manifest by setting require to the special value of
"CDIST_HONOR_MANIFEST_ORDER".
in the manifest by exporting EXECUTE_TYPES_IN_CREATION_ORDER with the value true.
--------------------------------------------------------------------------------
# Tells cdist to execute all types in the order in which they are created ...
export require="CDIST_HONOR_MANIFEST_ORDER"
export EXECUTE_TYPES_IN_CREATION_ORDER=true
__sample_type 1
__sample_type 2
require="__some_type_somewhere/id" __sample_type 2
__example_type 23
# Now this types are executed in the creation order
# Now this types are executed in the creation order until the variable is unset
unset EXECUTE_TYPES_IN_CREATION_ORDER
# all now following types cdist makes the order ..
__not_in_order_type 42
# how it works :
# this lines above are translated to:
__sample_type 1
require="__some_type_somewhere/id __sample_type/1" __sample_type 2
require="__sample_type/2" __example_type 23
__not_in_order_type 42
--------------------------------------------------------------------------------