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Merge branch 'feature__cdist_autodep_try2' of git://github.com/dheule/cdist

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This commit is contained in:
Nico Schottelius 2014-02-06 15:48:45 +01:00
commit 41266a1946
2 changed files with 51 additions and 2 deletions
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23
cdist/emulator.py
View file

@ -72,6 +72,7 @@ class Emulator(object):
raise MissingRequiredEnvironmentVariableError(e.args[0])
self.object_base_path = os.path.join(self.global_path, "object")
self.typeorder_path = os.path.join(self.global_path, "typeorder")
self.type_name = os.path.basename(argv[0])
self.cdist_type = core.CdistType(self.type_base_path, self.type_name)
@ -157,6 +158,9 @@ class Emulator(object):
else:
self.cdist_object.create()
self.cdist_object.parameters = self.parameters
# record the created object in typeorder file
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)
@ -186,6 +190,23 @@ class Emulator(object):
def record_requirements(self):
"""record requirements"""
if "CDIST_ORDER_DEPENDENCY" in self.env:
# 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 CDIST_ORDER_DEPENDENCY: %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']
self.log.debug("reqs = " + requirements)
@ -203,7 +224,7 @@ class Emulator(object):
self.log.error("%s requires object %s without object id. Defined at %s" % (self.cdist_object.name, requirement, self.object_source))
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)

30
docs/man/man7/cdist-manifest.text
View file

@ -128,7 +128,6 @@ 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.
OVERRIDES
---------
In some special cases, you would like to create an already defined object
@ -142,6 +141,35 @@ into an undefined situation.
THIS IS A BETA FEATURE AND MAY BE REMOVED AT ANY TIME.
CDIST_ORDER_DEPENDENCY is a EXPERIMENTAL FEATURE !
You can tell cdist to execute all types in the order in which they are created
in the manifest by exporting CDIST_ORDER_DEPENDENCY.
--------------------------------------------------------------------------------
# Tells cdist to execute all types in the order in which they are created ...
export CDIST_ORDER_DEPENDENCY=on
__sample_type 1
require="__some_type_somewhere/id" __sample_type 2
__example_type 23
# Now this types are executed in the creation order until the variable is unset
unset CDIST_ORDER_DEPENDENCY
# 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
--------------------------------------------------------------------------------
EXAMPLES
--------
The initial manifest may for instance contain the following code: