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#!/bin/bash
# Copyright 2017 Google LLC
#
# 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
#
# https://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.
set -e
cd "$(dirname "$0")"
mkdir -p graphs
(
echo 'digraph Modules {'
# Run the tests and filter the logs for log entries from our
# hacked Module._load.
# Also relativize source file paths.
NODE=/Users/msamuel/work/node/out/Release/node \
PATH="/Users/msamuel/work/node/out/Release/:$PATH" \
./node_modules/.bin/mocha 2>&1 \
| perl -ne 's/"$ENV{PWD}/"./g; if (s/^REQUIRE_LOG_DOT://) { print $_; } else { print STDERR $_; }'
# Add an edge from package.json to the main module.
echo ' "./package.json" -> "./index.js";'
echo ' "./package.json" [fillcolor=black,fontcolor=white,style=filled];'
echo '}'
) > graphs/full.dot
python -c '
import re
import sys
EDGE_RE = re.compile(r"""^ *(\"(?:[^\"\\]|\\.)*\") -> (\"(?:[^\"\\]|\\.)*\");$""")
GRAPH_END_RE = re.compile(r"^ *\}")
edges = {}
def add_edge(src, tgt):
tgts = edges.get(src)
if tgts is None:
tgts = []
edges[src] = tgts
tgts.append(tgt)
for line in sys.stdin:
edges_match = EDGE_RE.match(line)
if edges_match is not None:
add_edge(edges_match.group(1), edges_match.group(2))
continue
elif GRAPH_END_RE.match(line):
reachable = set()
def find_reachable(src):
if src not in reachable:
reachable.add(src)
for tgt in edges.get(src, ()):
find_reachable(tgt)
find_reachable("\"./package.json\"")
reachable = list(reachable)
reachable.sort()
for src in reachable:
for tgt in edges.get(src, ()):
print " %s -> %s;" % (src, tgt)
print line,
' < graphs/full.dot > graphs/filtered.dot
for graph in full filtered; do
dot -Tsvg graphs/"$graph".dot > graphs/"$graph".svg
done
# Start walking from package.json