| author | Julien Cristau <julien.cristau@logilab.fr> |
| Mon, 09 Nov 2015 15:37:55 +0100 | |
| changeset 10873 | 0611466ce367 |
| parent 10589 | 7c23b7de2b8d |
| permissions | -rw-r--r-- |
|
10589
7c23b7de2b8d
[py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents:
6198
diff
changeset
|
1 |
from __future__ import print_function |
|
6198
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
2 |
|
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
3 |
try: |
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
4 |
rtype, = __args__ |
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
5 |
except ValueError: |
|
10589
7c23b7de2b8d
[py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents:
6198
diff
changeset
|
6 |
print('USAGE: cubicweb-ctl shell <instance> detect_cycle.py -- <relation type>') |
|
7c23b7de2b8d
[py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents:
6198
diff
changeset
|
7 |
print() |
|
6198
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
8 |
|
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
9 |
graph = {} |
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
10 |
for fromeid, toeid in rql('Any X,Y WHERE X %s Y' % rtype): |
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
11 |
graph.setdefault(fromeid, []).append(toeid) |
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
12 |
|
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
13 |
from logilab.common.graph import get_cycles |
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
14 |
|
|
f8dea560703f
add a small c-c shell script to detect cycle for a given relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff
changeset
|
15 |
for cycle in get_cycles(graph): |
|
10589
7c23b7de2b8d
[py3k] print function
Samuel Trégouët <samuel.tregouet@logilab.fr>
parents:
6198
diff
changeset
|
16 |
print('cycle', '->'.join(str(n) for n in cycle)) |