new-codigoparallevar/scripts/gen-centered-graph.py

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import requests
import sys
url = 'http://localhost:8000/notes/graph.json'
reference_node = sys.argv[1]
out = sys.argv[2]
g = requests.get(url).json()
centered_graph = { reference_node: g[reference_node] }
del g[reference_node]
new_nodes = True
in_emacs_tree = {
reference_node: set(),
}
while new_nodes:
new_nodes = False
removed = set()
for k, v in g.items():
for link in v["links"]:
if link["target"].startswith("id:"):
link["target"] = link["target"][3:]
if link['target'] in centered_graph and link.get('relation') == 'in':
centered_graph[k] = v
for l in v["links"]:
if l.get('relation') == 'in':
t = l['target']
if t.startswith("id:"):
t = t[3:]
if '[' in t:
# Special case, to be handled on org_rw
continue
if t not in in_emacs_tree:
in_emacs_tree[t] = set()
in_emacs_tree[t].add(k)
v['links'] = [
l for l in v["links"]
if l.get('relation') != 'in'
]
removed.add(k)
new_nodes = True
break
for k in removed:
del g[k]
in_emacs = set(centered_graph.keys())
# One more round for the rest, not requiring "in"
for k, v in g.items():
for link in v["links"]:
if link["target"].startswith("id:"):
link["target"] = link["target"][3:]
if link['target'] in in_emacs:
centered_graph[k] = v
removed.add(k)
g = centered_graph
f = open('graph.dot', 'wt')
f.write('digraph {\n')
# f.write('bgcolor="#222222"\n')
# f.write('fontcolor="#ffffff"\n')
f.write('maxiter=1000\n')
f.write('splines=curved\n')
# f.write('splines=spline\n') # Not supported with edges to cluster
f.write('node[shape=rect]\n')
# f.write('edge[color="#ffffff"]\n')
def draw_subgraph(node_id):
f.write("subgraph cluster_{} {{\n".format(node_id.replace("-", "_")))
f.write('URL="./{}.node.html"\n'.format(node_id))
# f.write('color="#ffffff"\n')
f.write("label=\"{}\"\n".format(g[node_id]['title'].replace("\"", "'")))
f.write("\n")
# print("T: {}".format(in_emacs_tree), file=sys.stderr)
for k in in_emacs_tree[node_id]:
v = g[k]
print("_" + k.replace("-", "_") + "[label=\"" + v["title"].replace("\"", "'") + "\", URL=\"" + k + ".node.html\"];", file=f)
if k in in_emacs_tree:
draw_subgraph(k)
f.write("\n}")
draw_subgraph(reference_node)
for k, v in g.items():
if k not in in_emacs:
print("_" + k.replace("-", "_") + "[label=\"" + v["title"].replace("\"", "'") + "\", URL=\"" + k + ".node.html\"];", file=f)
for k, v in g.items():
for link in v["links"]:
if link["target"].startswith("id:"):
link["target"] = link["target"][3:]
if '[' in link['target']:
# Special case, to be handled on org_rw
continue
if link['target'] not in g:
# Irrelevant
continue
if link['target'] in in_emacs_tree:
t = 'cluster_{}'.format(link['target'].replace("-", "_"))
else:
t = "_" + link["target"].replace("-", "_")
print("_" + k.replace("-", "_") + "->" + t, file=f)
f.write('}\n')
# dot graph.dot -Tsvg graph.svg
f.close()
import subprocess
subprocess.call("fdp graph.dot -Tsvg -o '{}'".format(out), shell=True)
# return "graph.svg"