openstack
/
taskflow
Code Issues Proposed changes

Prepare for 0.1 release 

Change-Id: I4a56aa50d296f50a5b907635d2e53154500703c9
This commit is contained in:
Joshua Harlow 2013-10-12 03:25:56 +00:00
parent faf2d155df
commit 52c8869014
5 changed files with 57 additions and 829 deletions
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17
CONTRIBUTING.rst Normal file
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@ -0,0 +1,17 @@
If you would like to contribute to the development of OpenStack,
you must follow the steps in the "If you're a developer, start here"
section of this page:
http://wiki.openstack.org/HowToContribute
Once those steps have been completed, changes to OpenStack
should be submitted for review via the Gerrit tool, following
the workflow documented at:
http://wiki.openstack.org/GerritWorkflow
Pull requests submitted through GitHub will be ignored.
Bugs should be filed on Launchpad, not GitHub:
https://bugs.launchpad.net/taskflow

3
requirements.txt
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@ -1,7 +1,8 @@
# Packages needed for using this library.
anyjson>=0.3.3
iso8601>=0.1.4
six
# Python 2->3 compatibility library.
six>=1.4.1
# Only needed if database backend used.
SQLAlchemy>=0.7.8,<=0.7.99
alembic>=0.4.1

4
setup.cfg
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@ -1,6 +1,6 @@
[metadata]
name = taskflow
version = 0.0.1
version = 0.1
summary = Taskflow structured state management library.
description-file =
README.md
@ -8,7 +8,7 @@ author = Taskflow Developers
author-email = taskflow-dev@lists.launchpad.net
home-page = https://launchpad.net/taskflow
classifier =
Development Status :: 3 - Alpha
Development Status :: 4 - Beta
Environment :: OpenStack
Intended Audience :: Information Technology
Intended Audience :: Developers

36
taskflow/version.py Normal file
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# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (C) 2013 Yahoo! Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from pbr import version as pbr_version
TASK_VENDOR = "OpenStack Foundation"
TASK_PRODUCT = "OpenStack TaskFlow"
TASK_PACKAGE = None # OS distro package version suffix
version_info = pbr_version.VersionInfo('taskflow')
def version_string():
return version_info.version_string()
def version_string_with_package():
if TASK_PACKAGE is None:
return version_string()
else:
return "%s-%s" % (version_string(), TASK_PACKAGE)

826
update.py
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@ -1,826 +0,0 @@
#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# Taken from oslo commit 09baf99fc62 and modified for taskflow usage.
r"""
A simple script to update taskflows modules which have been copied
into other projects. See:
http://wiki.openstack.org/CommonLibrary#Incubation
The script can be called the following ways:
$> python update.py ../myproj
$> python update.py --config-file ../myproj/taskflow.conf
Where ../myproj is a project directory containing taskflow.conf which
might look like:
[DEFAULT]
primitives = flow.linear_flow,flow.graph_flow,task
base = myproj
Or:
$> python update.py ../myproj/myconf.conf
$> python update.py --config-file ../myproj/myconf.conf
Where ../myproj is a project directory which contains a differently named
configuration file, or:
$> python update.py --config-file ../myproj/myproj/taskflow.conf
--dest-dir ../myproj
Where ../myproject is a project directory, but the configuration file is
stored in a sub-directory, or:
$> python update.py --primitives flow.linear_flow --base myproj ../myproj
$> python update.py --primitives flow.linear_flow,flow.graph_flow,task
--base myproj --dest-dir ../myproj
Where ../myproject is a project directory, but we explicitly specify
the primitives to copy and the base destination module
Obviously, the first way is the easiest!
"""
from __future__ import print_function
import ConfigParser
import collections
import functools
import logging
import os
import os.path
import re
import shutil
import sys
import textwrap
import six
LOG = logging.getLogger(__name__)
from oslo.config import cfg
BASE_MOD = 'taskflow'
OPTS = [
cfg.ListOpt('primitives',
default=[],
help='The list of primitives to copy from %s' % BASE_MOD),
cfg.StrOpt('base',
default=None,
help='The base module to hold the copy of %s' % BASE_MOD),
cfg.StrOpt('dest-dir',
default=None,
help='Destination project directory'),
cfg.StrOpt('configfile_or_destdir',
default=None,
help='A config file or destination project directory',
positional=True),
cfg.BoolOpt('verbose', default=False,
short='v',
help='Verbosely show what this program is doing'),
]
ALLOWED_PRIMITIVES = (
'decorators',
'engines',
'exceptions',
'flow',
'persistence',
'storage',
'task',
)
IMPORT_FROM = re.compile(r"^\s*from\s+" + BASE_MOD + r"\s*(.*)$")
BASE_CONF = '%s.conf' % (BASE_MOD)
MACHINE_GENERATED = ('# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE '
'OVERWRITTEN', '')
ENTRY_FOOTER = [
'',
"Please make sure you have these installed.",
'',
]
ENTRY_WARN = """
Please install stevedore [https://pypi.python.org/pypi/stevedore] to make
sure that entrypoints can be loaded successfully. A setup.cfg file which is
required for discovery of these entrypoints was %(updated_or_created)s at
'%(location)s' which requires either pbr [https://pypi.python.org/pypi/pbr/]
or distutils2 (which is provided by default in python 3.3+)
[https://pypi.python.org/pypi/Distutils2].
"""
# These module names require entrypoint adjustments to work correctly in the
# target projects namespace (they also require stevedore and a setup.cfg file
# that includes references to there module location).
REQUIRES_ENTRYPOINTS = {
'engines.helpers': {
'target_mod': 'engines.helpers',
'replace': 'ENGINES_NAMESPACE',
'replacement': '%s.taskflow.engines',
'entrypoint': 'taskflow.engines',
},
'persistence.backends': {
'target_mod': 'persistence.backends',
'replace': 'BACKEND_NAMESPACE',
'replacement': '%s.taskflow.persistence',
'entrypoint': 'taskflow.persistence',
},
}
REQUIRES_ENTRYPOINTS['engines'] = REQUIRES_ENTRYPOINTS['engines.helpers']
def _warn_entrypoint(cfg_file, there_existed):
base_dir = os.path.basename(os.path.dirname(cfg_file))
cfg_file = os.path.join(base_dir, os.path.basename(cfg_file))
replacements = {
'location': cfg_file,
}
if there_existed:
replacements['updated_or_created'] = 'updated'
else:
replacements['updated_or_created'] = 'created'
text = ENTRY_WARN.strip()
text = text % replacements
lines = ['']
lines.extend(textwrap.wrap(text, width=79))
lines.extend(ENTRY_FOOTER)
for line in lines:
LOG.warn(line)
def _configure_logging(cfg):
if cfg.verbose:
level = logging.DEBUG
else:
level = logging.INFO
logging.basicConfig(level=level, format='%(levelname)s: %(message)s')
def _take_entrypoint_line(line, mod_list):
line = line.strip()
if not line or line.find("=") == -1 or line.startswith("#"):
return True
_name, module = line.split("=", 1)
base_module = module.split(":")[0].strip()
if base_module.startswith("%s." % (BASE_MOD)):
base_module = _join_mod(*base_module.split(".")[1:])
if not base_module:
return False
return _is_prefix_of(base_module, mod_list)
def _parse_args(argv):
conf = cfg.ConfigOpts()
conf.register_cli_opts(OPTS)
conf(argv, usage='Usage: %(prog)s [config-file|dest-dir]')
if conf.configfile_or_destdir:
def def_config_file(dest_dir):
return os.path.join(dest_dir, BASE_CONF)
config_file = None
if os.path.isfile(conf.configfile_or_destdir):
config_file = conf.configfile_or_destdir
elif (os.path.isdir(conf.configfile_or_destdir)
and os.path.isfile(def_config_file(conf.configfile_or_destdir))):
config_file = def_config_file(conf.configfile_or_destdir)
if config_file:
conf(argv + ['--config-file', config_file])
return conf
def _explode_path(path):
dirs = []
dirs.append(path)
(head, tail) = os.path.split(path)
while tail:
dirs.append(head)
path = head
(head, tail) = os.path.split(path)
dirs.sort()
return dirs
def _mod_to_path(mod):
return os.path.join(*mod.split('.'))
def _dest_path(path, base, dest_dir):
return os.path.join(dest_dir, _mod_to_path(base), path)
def _drop_init(path):
with open(path, 'wb') as fh:
for line in MACHINE_GENERATED:
fh.write(line + '\n')
def _bulk_replace(path, pattern, replacement):
with open(path, "rb+") as f:
lines = f.readlines()
f.seek(0)
f.truncate()
for line in lines:
f.write(re.sub(pattern, replacement, line))
def _make_dirs(path):
dir_name = os.path.dirname(path)
dirs_needed = []
for d in _explode_path(dir_name):
if not os.path.isdir(d):
dirs_needed.append(d)
if dirs_needed:
LOG.debug("Creating directories for '%s'", dir_name)
for d in dirs_needed:
LOG.debug(" '%s'", d)
os.mkdir(d)
init_path = os.path.join(d, '__init__.py')
if not os.path.exists(init_path):
LOG.debug(" '%s'", init_path)
_drop_init(init_path)
def _join_mod(*pieces):
return ".".join([str(p) for p in pieces if p])
def _reform_import(mod, postfix, alias, comment):
assert mod, 'Module required'
import_line = ''
if mod and not postfix:
import_line = 'import %s' % (mod)
else:
import_line = 'from %s import %s' % (mod, postfix)
if alias:
import_line += ' as %s' % (alias)
if comment:
import_line += ' #' + str(comment)
return import_line
def _copy_file(path, dest, base, root_mods=None, common_already=None):
def _copy_it():
_make_dirs(dest)
LOG.debug("Copying '%s'", path)
LOG.debug(" '%s' -> '%s'", path, dest)
shutil.copy2(path, dest)
def _form_mod(prefix, postfix):
importing = _join_mod(prefix, postfix)
if importing not in common_already:
new_mod = [base, BASE_MOD, prefix]
else:
new_mod = [base, 'openstack', 'common']
# If the import is something like 'openstack.common.a.b.c.d'
# ensure that we take the part after the first two
# segments to ensure that we include it correctly.
prefix_pieces = _split_mod(prefix)
for p in prefix_pieces[2:]:
new_mod.append(p)
return _join_mod(*new_mod)
def _import_replace(path):
with open(path, "rb+") as f:
lines = f.readlines()
f.seek(0)
f.truncate()
new_lines = []
for line in MACHINE_GENERATED:
new_lines.append(line + "\n")
new_lines.extend(lines)
for (i, line) in enumerate(new_lines):
segments = _parse_import_line(line, i + 1, path)
if segments:
original_line = line
(comment, prefix, postfix, alias) = segments
line = "%s\n" % _reform_import(_form_mod(prefix, postfix),
postfix, alias, comment)
if original_line != line:
LOG.debug(" '%s' -> '%s'; line %s",
original_line.strip(), line.strip(), i + 1)
f.write(line)
# Only bother making it if we already didn't make it...
if not os.path.exists(dest):
_copy_it()
LOG.debug("Fixing up '%s'", dest)
_import_replace(dest)
_bulk_replace(dest,
'possible_topdir, "%s",$' % (BASE_MOD),
'possible_topdir, "' + base + '",')
def _get_mod_path(segments, base):
if not segments:
return (False, None)
mod_path = _mod_to_path(_join_mod(base, *segments)) + '.py'
if os.path.isfile(mod_path):
return (True, mod_path)
return (False, mod_path)
def _split_mod(text):
pieces = text.split('.')
return [p.strip() for p in pieces if p.strip()]
def _copy_pyfile(path, base, dest_dir, root_mods=None, common_already=None):
_copy_file(path, _dest_path(path, base, dest_dir), base,
common_already=common_already, root_mods=root_mods)
def _copy_mod(mod, base, dest_dir, common_already=None, root_mods=None):
if not root_mods:
root_mods = {}
if not common_already:
common_already = set()
copy_pyfile = functools.partial(_copy_pyfile,
base=base, dest_dir=dest_dir,
common_already=common_already,
root_mods=root_mods)
# Ensure that the module has a root module if it has a mapping to one so
# that its __init__.py file will exist.
root_existed = False
if mod in root_mods:
root_existed = True
copy_pyfile(root_mods[mod])
exists, mod_file = _get_mod_path([mod], base=BASE_MOD)
if exists:
LOG.debug("Creating module '%s'", _join_mod(base, BASE_MOD, mod))
copy_pyfile(mod_file)
return mod_file
else:
if not root_existed:
raise IOError("Can not find module: %s" % (_join_mod(BASE_MOD,
mod)))
return root_mods[mod]
def _parse_import_line(line, linenum=-1, filename=None):
def blowup():
msg = "Invalid import at '%s'" % (line)
if linenum > 0:
msg += "; line %s" % (linenum)
if filename:
msg += " from file '%s'" % (filename)
raise IOError(msg)
result = IMPORT_FROM.match(line)
if not result:
return None
rest = result.group(1).split("#", 1)
comment = ''
if len(rest) > 1:
comment = rest[1]
rest = rest[0]
else:
rest = rest[0]
if not rest:
blowup()
# Figure out the contents of a line like:
#
# from abc.xyz import blah as blah2
# First looking at the '.xyz' part (if it exists)
prefix = ''
if rest.startswith("."):
import_index = rest.find("import")
if import_index == -1:
blowup()
before = rest[0:import_index - 1]
before = before[1:]
prefix += before
rest = rest[import_index:]
# Now examine the 'import blah' part.
postfix = ''
result = re.match(r"\s*import\s+(.*)$", rest)
if not result:
blowup()
# Figure out if this is being aliased and keep the alias.
importing = result.group(1).strip()
result = re.match(r"(.*?)\s+as\s+(.*)$", importing)
alias = ''
if not result:
postfix = importing
else:
alias = result.group(2).strip()
postfix = result.group(1).strip()
return (comment, prefix, postfix, alias)
def _find_import_modules(srcfile, root_mods):
with open(srcfile, 'rb') as f:
lines = f.readlines()
for (i, line) in enumerate(lines):
segments = _parse_import_line(line, i + 1, srcfile)
if not segments:
continue
(comment, prefix, postfix, alias) = segments
importing = _join_mod(prefix, postfix)
if importing in root_mods.keys():
yield importing
continue
# Attempt to locate where the module is by popping import
# segments until we find one that actually exists.
import_segments = _split_mod(importing)
while len(import_segments):
exists, _mod_path = _get_mod_path(import_segments, base=BASE_MOD)
if exists:
break
else:
import_segments.pop()
prefix_segments = _split_mod(prefix)
if not import_segments or len(import_segments) < len(prefix_segments):
raise IOError("Unable to find import '%s'; line %s from file"
" '%s'" % (importing, i + 1, srcfile))
yield _join_mod(*import_segments)
def _build_dependency_tree():
dep_tree = {}
root_mods = {}
file_paths = []
for dirpath, _tmp, filenames in os.walk(BASE_MOD):
for filename in [x for x in filenames if x.endswith('.py')]:
if dirpath == BASE_MOD:
mod_name = filename.split('.')[0]
root_mods[mod_name] = os.path.join(dirpath, '__init__.py')
else:
mod_pieces = dirpath.split(os.sep)[1:]
mod_pieces.append(filename.split('.')[0])
mod_name = _join_mod(*mod_pieces)
if mod_name.endswith('__init__') or filename == '__init__.py':
segments = _split_mod(mod_name)[0:-1]
if segments:
mod_name = _join_mod(*segments)
root_mods[mod_name] = os.path.join(dirpath, filename)
filepath = os.path.join(dirpath, filename)
if mod_name:
file_paths.append((filepath, mod_name))
# Analyze the individual files dependencies after we know exactly what the
# modules are so that we can find those modules if a individual file
# imports a module instead of a file.
for filepath, mod_name in file_paths:
dep_list = dep_tree.setdefault(mod_name, [])
dep_list.extend([x for x in _find_import_modules(filepath, root_mods)
if x != mod_name and x not in dep_list])
return (dep_tree, root_mods)
def _dfs_dependency_tree(dep_tree, mod_name, mod_list=[]):
mod_list.append(mod_name)
for mod in dep_tree.get(mod_name, []):
if mod not in mod_list:
mod_list = _dfs_dependency_tree(dep_tree, mod, mod_list)
return mod_list
def _complete_engines(engine_types):
if not engine_types:
return []
engine_mods = [
'engines',
'engines.base',
]
for engine_type in engine_types:
engine_type = engine_type.strip()
if not engine_type or engine_type in engine_mods:
continue
engine_mods.append(_join_mod('engines', engine_type))
mod = _join_mod('engines', engine_type, 'engine')
exists, mod_path = _get_mod_path([mod], base=BASE_MOD)
if not exists:
raise IOError("Engine %s file not found at: %s" % (engine_type,
mod_path))
engine_mods.append(mod)
return engine_mods
def _complete_flows(patterns):
if not patterns:
return []
pattern_mods = [
'patterns',
]
for p in patterns:
p = p.strip()
if not p or p in pattern_mods:
continue
mod = _join_mod('patterns', p)
exists, mod_path = _get_mod_path([mod], base=BASE_MOD)
if not exists:
raise IOError("Flow pattern %s file not found at: %s"
% (p, mod_path))
pattern_mods.append(mod)
return pattern_mods
def _complete_persistence(backends):
if not backends:
return []
backend_mods = [
'persistence',
'persistence.logbook',
]
for b in backends:
b = b.strip()
if not b or b in backend_mods:
continue
mod = _join_mod("persistence", "backends", b)
exists, mod_path = _get_mod_path([mod], base=BASE_MOD)
if not exists:
raise IOError("Persistence backend %s file not found at: %s"
% (b, mod_path))
backend_mods.append(mod)
return backend_mods
def _is_prefix_of(prefix_text, haystack):
for t in haystack:
if t.startswith(prefix_text):
return True
return False
def _complete_module_list(base):
dep_tree, root_mods = _build_dependency_tree()
mod_list = []
for mod in base:
for x in _dfs_dependency_tree(dep_tree, mod, []):
if x not in mod_list and x not in base:
mod_list.append(x)
mod_list.extend(base)
# Ensure that we connect the roots of the mods to the mods themselves
# and include them in the list of mods to be completed so they are included
# also.
for m in root_mods.keys():
if _is_prefix_of(m, base) and m not in mod_list:
mod_list.append(m)
return (mod_list, root_mods)
def _find_existing(mod, base, dest_dir):
mod = _join_mod(base, mod)
mod_path = os.path.join(dest_dir, _mod_to_path(mod)) + '.py'
if os.path.isfile(mod_path):
return mod
return None
def _uniq_itr(itr):
seen = set()
for i in itr:
if i in seen:
continue
seen.add(i)
yield i
def _rm_tree(base):
dirpaths = []
for dirpath, _tmp, filenames in os.walk(base):
LOG.debug(" '%s' (X)", dirpath)
for filename in filenames:
filepath = os.path.join(dirpath, filename)
LOG.debug(" '%s' (X)", filepath)
os.unlink(filepath)
dirpaths.append(dirpath)
for d in reversed(dirpaths):
shutil.rmtree(d)
def main(argv):
conf = _parse_args(argv)
script_base = os.path.abspath(os.path.dirname(__file__))
_configure_logging(conf)
dest_dir = conf.dest_dir
if not dest_dir and conf.config_file:
dest_dir = os.path.dirname(os.path.abspath(conf.config_file[-1]))
if not dest_dir or not os.path.isdir(dest_dir):
print("A valid destination dir is required", file=sys.stderr)
sys.exit(1)
primitives = [p for p in _uniq_itr(conf.primitives)]
primitive_types = collections.defaultdict(list)
for p in primitives:
try:
p_type, p = p.split(".", 1)
except ValueError:
p_type = p
p = ''
p_type = p_type.strip()
p = p.strip()
if not p_type:
continue
if p not in primitive_types[p_type]:
primitive_types[p_type].append(p)
# TODO(harlowja): for now these are the only primitives we are allowing to
# be copied over. Later add more as needed.
unknown_prims = []
for k in primitive_types.keys():
if k not in ALLOWED_PRIMITIVES:
unknown_prims.append(k)
if unknown_prims:
allowed = ", ".join(sorted(ALLOWED_PRIMITIVES))
unknown = ", ".join(sorted(unknown_prims))
print("Unknown primitives (%s) are being copied "
"(%s is allowed)" % (unknown, allowed), file=sys.stderr)
sys.exit(1)
if not conf.base:
print("A destination base module is required", file=sys.stderr)
sys.exit(1)
base_dir = os.path.join(dest_dir, conf.base)
def copy_mods(mod_list, root_mods):
common_already = {}
missing_common = set()
# Take out the openstack.common modules that exist already in the
# containing project.
mod_list = list(mod_list)
for mod in list(mod_list):
# NOTE(harlowja): attempt to use the modules being copied to common
# folder as much as possible for modules that are needed for
# taskflow as this avoids duplicating openstack.common in the
# contained project as well as in the taskflow subfolder.
if mod.startswith("openstack.common"):
existing_mod = _find_existing(mod, conf.base, dest_dir)
if existing_mod:
common_already[mod] = existing_mod
mod_list.remove(mod)
else:
missing_common.add(mod)
LOG.info("Copying %s modules into '%s'", len(mod_list), base_dir)
for m in mod_list:
LOG.info(" - %s", m)
if common_already:
LOG.info("The following modules will be used from the containing"
" projects 'openstack.common'")
for mod in sorted(common_already.keys()):
target_mod = common_already[mod]
LOG.info(" '%s' -> '%s'", mod, target_mod)
if missing_common:
LOG.info("The following modules will *not* be used from the"
" containing projects 'openstack.common'")
for mod in sorted(missing_common):
LOG.info(" - %s", mod)
copied = set()
for mod in mod_list:
copied.add(_copy_mod(mod, conf.base, dest_dir,
common_already=common_already,
root_mods=root_mods))
LOG.debug("Copied %s modules", len(copied))
for m in sorted(copied):
LOG.debug(" - %s", m)
def clean_old():
old_base = os.path.join(dest_dir, conf.base, BASE_MOD)
if os.path.isdir(old_base):
LOG.info("Removing old %s tree found at '%s'", BASE_MOD, old_base)
_rm_tree(old_base)
def create_entrypoints(mod_list, root_mods):
needed_entrypoints = set()
for k in REQUIRES_ENTRYPOINTS.keys():
for m in mod_list:
if m.startswith(k):
needed_entrypoints.add(k)
if not needed_entrypoints:
return
# Alter the source code locations that have the entry point name.
LOG.info("Altering %s entrypoint referencing modules:",
len(needed_entrypoints))
for m in sorted(needed_entrypoints):
LOG.info(" - %s", m)
entrypoints_adjusted = set()
for k in sorted(needed_entrypoints):
entrypoint_details = REQUIRES_ENTRYPOINTS[k]
entrypoint_target = entrypoint_details['target_mod']
there_entrypoint = (entrypoint_details['replacement'] % conf.base)
if entrypoint_target in entrypoints_adjusted:
continue
base_mod_path = root_mods.get(entrypoint_target)
if not base_mod_path:
existing_mod = _find_existing(entrypoint_target,
BASE_MOD, base_dir)
if existing_mod:
base_mod_path = _mod_to_path(existing_mod) + ".py"
if not base_mod_path:
raise IOError("Could not find entrypoint target %s" %
entrypoint_target)
dest_path = os.path.join(base_dir, base_mod_path)
if not os.path.isfile(dest_path):
raise IOError("Could not find entrypoint file %s" %
dest_path)
LOG.debug("Adjusting '%s' in '%s'", entrypoint_details['replace'],
dest_path)
pattern = r"%s\s*=.*" % (entrypoint_details['replace'])
replacement = entrypoint_details['replace']
replacement += " = '%s'" % (there_entrypoint)
LOG.debug("Replacing '%s' -> '%s'", pattern, replacement)
_bulk_replace(dest_path, pattern, replacement)
entrypoints_adjusted.add(entrypoint_target)
if not entrypoints_adjusted:
return
# Adjust there entrypoint configuration file (if it exists).
cfg_filename = os.path.join(dest_dir, "setup.cfg")
my_cfg_filename = os.path.join(script_base, 'setup.cfg')
LOG.debug("Adjusting entrypoint configuration in '%s' with entrypoints"
" from '%s'", cfg_filename, my_cfg_filename)
# Clear out there old entry points for taskflow
there_cfg = ConfigParser.RawConfigParser()
there_cfg.read([cfg_filename])
there_exists = os.path.isfile(cfg_filename)
for k in entrypoints_adjusted:
entrypoint_details = REQUIRES_ENTRYPOINTS[k]
entrypoint = entrypoint_details['entrypoint']
there_entrypoint = (entrypoint_details['replacement'] % conf.base)
try:
there_cfg.remove_option('entry_points', there_entrypoint)
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
pass
# Copy and modify my entry points into there entrypoints.
my_cfg = ConfigParser.RawConfigParser()
my_cfg.read([my_cfg_filename])
for k in sorted(entrypoints_adjusted):
entrypoint_details = REQUIRES_ENTRYPOINTS[k]
entrypoint = entrypoint_details['entrypoint']
there_entrypoint = (entrypoint_details['replacement'] % conf.base)
my_entries = my_cfg.get('entry_points', entrypoint)
there_entries = []
for line in my_entries.splitlines():
# NOTE(harlowja): only take the entrypoints that are relevant
# for the desired module list, skip the ones that are not.
if _take_entrypoint_line(line, mod_list):
new_line = re.sub(entrypoint, there_entrypoint, line)
there_entries.append(new_line)
try:
there_cfg.add_section('entry_points')
except ConfigParser.DuplicateSectionError:
pass
entry_value = os.linesep.join(there_entries)
there_cfg.set('entry_points', there_entrypoint, entry_value)
LOG.debug("Added entrypoint '%s'", there_entrypoint)
for line in there_entries:
line = line.strip()
if line:
LOG.debug(">> %s", line)
# ConfigParser seems to use tabs, instead of spaces, why!
buf = six.StringIO()
there_cfg.write(buf)
contents = buf.getvalue()
if contents.find("\t") != -1:
contents = contents.replace("\t", " " * 4)
if contents.find(" \n") != -1:
contents = contents.replace(' \n', '\n')
with open(cfg_filename, "wb") as fh:
fh.write(contents)
_warn_entrypoint(cfg_filename, there_exists)
find_what = _complete_flows(primitive_types.pop('flow', []))
find_what.extend(_complete_engines(primitive_types.get('engines')))
find_what.extend(_complete_persistence(primitive_types.get('persistence')))
find_what.extend(primitive_types.keys())
find_what = [f for f in _uniq_itr(find_what)]
copy_what, root_mods = _complete_module_list(find_what)
copy_what = sorted([m for m in _uniq_itr(copy_what)])
if copy_what:
clean_old()
copy_mods(copy_what, root_mods)
create_entrypoints(copy_what, root_mods)
else:
print("Nothing to copy.", file=sys.stderr)
if __name__ == "__main__":
main(sys.argv[1:])