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#!/usr/bin/python
import os
import argparse # TODO - use the newer / shorter argument parser. y?
from collections import namedtuple
import json
import uuid
from neo4j_util import generate_random_id__uuid
from rz_server import init_config
from rz_kernel import RZ_Kernel
from model.graph import Topo_Diff
import db_controller as dbc
def clone(rzdoc_name):
return kernel.rzdoc__clone(kernel.rzdoc__lookup_by_name(rzdoc_name))
def names():
return [v['name'] for v in kernel.rzdoc__list()]
def create_id():
return uuid.uuid4().get_hex()[:8]
def merge_topos(topos):
"""
Merge a number of Topo_Diff's
result node set is union of nodes
conflicting nodes:
same name nodes take the first (id wise)
attributes: take the first
result link set is merged (well defined: replace dropped id by chosen id in all links)
"""
result = Topo_Diff()
node_names = dict()
node_ids = set()
dropped_nodes = set()
links_src_dst = set()
def rename(links, from_id, to_id):
for link in links:
if link['__src_id'] == from_id:
link['__src_id'] = to_id
if link['__dst_id'] == from_id:
link['__dst_id'] = to_id
def merge(topo):
links = topo.link_set_add
nodes = topo.node_set_add
new_nodes = []
for node in nodes:
name = node['name']
if name in node_names:
dropped_nodes.add(node['name'])
rename(links, node['id'], node_names[name]['id'])
else:
node_names[name] = node
new_nodes.append(node)
node_ids.add(node['id'])
new_links = []
for link in links:
k = (link['__src_id'], link['__dst_id'])
if k not in links_src_dst:
links_src_dst.add(k)
new_links.append(link)
if len(dropped_nodes) > 0:
print("dropped duplicate nodes count: %s" % len(dropped_nodes))
if len(new_links) != len(links):
print("dropped duplicate links count: %s" % (len(links) - len(new_links)))
print("adding %s nodes, %s links" % (len(new_nodes), len(new_links)))
result.node_set_add.extend(new_nodes)
result.link_set_add.extend(new_links)
for topo in topos:
merge(topo)
# now realloc all ids since otherwise they are duplicates of originals
renames = [(node['id'], create_id()) for node in result.node_set_add]
def show(word):
print("=" * 80)
print(word)
print(result.node_set_add)
print(result.link_set_add)
for src, dst in renames:
rename(result.link_set_add, src, dst)
for node, (_, new_id) in zip(result.node_set_add, renames):
node['id'] = new_id
return result
def merge(destination_name, sources=None):
if sources == None:
sources = names()
docs = [kernel.rzdoc__lookup_by_name(name) for name in sources]
topos = [kernel.rzdoc__clone(doc) for doc in docs]
destination = kernel.rzdoc__create(destination_name)
ctx = namedtuple('Context', ['user_name', 'rzdoc'])(None, destination)
kernel.diff_commit__topo(merge_topos(topos), ctx)
def remove(rzdoc_name):
kernel.rzdoc__delete(kernel.rzdoc__lookup_by_name(rzdoc_name))
if __name__ == '__main__':
p = argparse.ArgumentParser(description="rhizi command line interface")
p.add_argument('--config-dir', help='path to Rhizi config dir', default=None)
p.add_argument('--list-names', default=False, action='store_true')
p.add_argument('--list-table', default=False, action='store_true')
p.add_argument('--delete', help='doc name to delete')
p.add_argument('--merge-target', help='name of resulting rzdoc')
p.add_argument('--merge', help='comma separated names of docs to merge')
p.add_argument('--merge-file', help='filename with line per doc name')
p.add_argument('--clone', help='show contents of doc')
args = p.parse_args()
if args.config_dir is None:
for d in ['res/etc', '/etc/rhizi']:
if os.path.exists(d):
args.config_dir = d
break
cfg = init_config(args.config_dir)
kernel = RZ_Kernel()
db_ctl = dbc.DB_Controller(cfg)
kernel.db_ctl = db_ctl
if args.list_table:
print('\n'.join('%30s %30s' % (d['name'].ljust(30), d['id'].ljust(30)) for d in kernel.rzdoc__list()))
raise SystemExit
if args.list_names:
print('\n'.join(d['name'] for d in kernel.rzdoc__list()))
raise SystemExit
if args.delete:
remove(args.delete)
if args.clone:
print(json.dumps(clone(args.clone).to_json_dict()))
if args.merge_target:
merge_sources = None
if args.merge:
merge_sources = args.merge.split(',')
if args.merge_file:
with open(args.merge_file) as fd:
merge_sources = [line.strip() for line in fd.readlines()]
if merge_sources:
merge(args.merge_target, merge_sources)
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