-
Notifications
You must be signed in to change notification settings - Fork 1
/
entity.py
232 lines (200 loc) · 7.13 KB
/
entity.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
from graph import Node, needgraph, actiongraph
from visitor import visitor, join, spawn
from scheduler import Scheduler
from types import GeneratorType
from job import JobEngine
from logger import logger
from namespace import Namespace
from copy import copy
import types
class EntityBase:
ntts = {}
@classmethod
def register_entity(cls, name, ntt):
if name in cls.ntts:
raise Exception("attempt to redefine an entity " + name)
else:
cls.ntts[name] = ntt
def __init__(self, body, parent=None):
self.name = body.__name__
self.fullname = self.name
if parent:
self.fullname = str(parent) + '.' + self.name
self.body = body
self.parent = parent
self.needs = set()
self.initialized = False
self.node = Node(self.name)
self.node.ntt = self
self.node.color = 'white'
self.node.waiters = set()
self.node.waiter_nodes = set()
self.node.wait_on = set()
needgraph.add_node(self.node)
@action(self)
def build(self):
pass
EntityBase.register_entity(self.fullname, self)
def add(self, name, action, org_action=None):
self.__dict__[name] = action
return action
def mixin(self, ns):
if not isinstance(ns, Namespace):
raise Exception("attempt to maxin in non-namspace {}".format(ns))
for n in ns().ns:
self.__dict__[n] = types.MethodType(ns.ns[n], self)
def initialize(self):
if not self.initialized:
self.initialized = True
self.body(self)
def __call__(self):
self.initialize()
return self
def __str__(self):
return self.fullname
def need(self, ntt):
self.needs.add(ntt())
needgraph.add_edge(self.node, ntt.node)
def add_waiter(self, n):
self.node.waiters.add(Scheduler.current)
self.node.waiter_nodes.add(n)
def wake_waiters(self):
for v in self.node.waiters:
Scheduler.wake(v)
def build_needs(self):
n = self.node
cv = Scheduler.current
if n.color == 'black':
return
sg = needgraph.subgraph(n)
for i in self.needs:
if i.node.color == 'gray':
i.add_waiter(n)
n.wait_on.add(i.node)
sg.remove_node(i.node)
ssg = needgraph.subgraph(i.node)
for j in ssg.nodes_iter():
sg.remove_node(j)
for i in sg.nodes_iter():
if not i.color == 'black':
i.color = 'gray'
ns = set()
def collect_nodes():
for i in sg.nodes_iter():
if sg.out_degree(i) == 0 and not i.color == 'black':
ns.add(i.ntt)
collect_nodes()
try:
while len(ns) > 0:
@join
def body(s):
for i in ns:
@spawn(s)
def f(ii=i):
try:
yield from ii.build()
finally:
ii.node.color = 'black'
ns.remove(ii)
if sg.has_node(ii.node):
sg.remove_node(ii.node)
yield from body()
collect_nodes()
while len(n.wait_on) > 0:
yield from Scheduler.sleep()
except Exception as e:
cv.exception = e
for i in sg.nodes_iter():
i.color = 'black'
for j in i.waiter_nodes:
j.wait_on.remove(i)
for v in i.waiters:
v.exception = cv.exception
Scheduler.wake(v)
n.color = 'black'
for i in n.waiter_nodes:
i.wait_on.remove(n)
for v in n.waiters:
if cv.exception:
v.exception = cv.exception
Scheduler.wake(v)
n.waiters.clear()
n.waiter_nodes.clear()
if cv.exception:
raise cv.exception
class Entity(EntityBase):
def __init__(self, body, parent=None):
super(Entity, self).__init__(body, parent)
def need(self, *ntts):
for n in ntts:
if type(n) != Entity:
raise Exception('attempt to need a non-entity {}:{}'.format(type(n), n))
super(Entity, self).need(n)
needgraph.check_cycle()
def entity(parent=None):
def f(body):
ntt = Entity(body, parent=parent)
if parent:
if type(parent) == Namespace:
parent.add(body.__name__, ntt)
else:
raise Exception('attempt to define entity {} in non-component {}'.format(body.__name__, parent))
return ntt
return f
def action(parent=None):
def f(a):
def na(*args, **kargs):
fn = a.__name__
if parent:
fn = str(parent) + '.' + fn
logger.info('-> running action {}'.format(fn))
try:
if a.__name__ == 'build':
if parent:
yield from parent.build_needs()
res = a(*args, **kargs)
if type(res) == GeneratorType:
res = yield from res
logger.info('<- action {} passed'.format(fn))
return res
except Exception as e:
logger.error('<- action {} failed'.format(fn))
raise e
if parent:
parent.add(a.__name__, types.MethodType(na, parent), na)
if a.__name__ == 'build':
def nna(*args, **kargs):
fn = 'build_self'
if parent:
fn = str(parent) + '.' + fn
logger.info('-> running action {}'.format(fn))
try:
res = a(*args, **kargs)
if type(res) == GeneratorType:
res = yield from res
logger.info('<- action {} passed'.format(fn))
return res
except Exception as e:
logger.info('<- action {} failed'.format(fn))
raise e
parent.add('build_self', types.MethodType(nna, parent))
return na
return f
def cmd(*args):
cmd_spec = {}
cmd_spec['cmd'] = ' '.join(args)
v = Scheduler.current
if v.cwd:
cmd_spec['dir'] = v.cwd
JobEngine.push_cmd(v, cmd_spec)
yield from Scheduler.sleep()
exitcode = cmd_spec['exitcode']
if exitcode == 0:
logger.info("> command '{}' passed".format(cmd_spec['cmd']))
else:
errmsg = cmd_spec['errmsg'] + (" with exitcode {}".format(exitcode))
logger.error("> command '{}' failed: {}".format(cmd_spec['cmd'], errmsg))
raise Exception(errmsg)
def dir(p):
v = Scheduler.current
v.cwd = p