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#!/usr/bin/env python
#
# Copyright 2001 Google Inc. All Rights Reserved.
#
# 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
#
# http://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.
"""Simple web server for browsing dependency graph data.
This script is inlined into the final executable and spawned by
it when needed.
"""
import BaseHTTPServer
import subprocess
import sys
import webbrowser
def match_strip(prefix, line):
if not line.startswith(prefix):
print prefix, line
assert line.startswith(prefix)
return line[len(prefix):]
def parse(text):
lines = text.split('\n')
node = lines.pop(0)
node = node[:-1] # strip trailing colon
input = []
if lines and lines[0].startswith(' input:'):
input.append(match_strip(' input: ', lines.pop(0)))
while lines and lines[0].startswith(' '):
input.append(lines.pop(0).strip())
outputs = []
while lines:
output = []
output.append(match_strip(' output: ', lines.pop(0)))
while lines and lines[0].startswith(' '):
output.append(lines.pop(0).strip())
outputs.append(output)
return (node, input, outputs)
def generate_html(data):
node, input, outputs = data
print '''<!DOCTYPE html>
<style>
body {
font-family: sans;
font-size: 0.8em;
margin: 4ex;
}
h1 {
font-weight: normal;
text-align: center;
margin: 0;
}
h2 {
font-weight: normal;
}
tt {
font-family: WebKitHack, monospace;
}
ul {
margin-top: 0;
padding-left: 20px;
}
</style>'''
print '<table width=500><tr><td colspan=3>'
print '<h1><tt>%s</tt></h1>' % node
print '</td></tr>'
print '<tr><td valign=top>'
if input:
print '<h2>built by rule: <tt>%s</tt></h2>' % input[0]
if len(input) > 0:
print 'inputs:'
print '<ul>'
for i in input[1:]:
print '<li><tt><a href="?%s">%s</a></tt></li>' % (i, i)
print '</ul>'
else:
print '<h2>no input rule</h2>'
print '</td>'
print '<td width=50> </td>'
print '<td valign=top>'
print '<h2>dependents</h2>'
for output in outputs:
print '<tt>%s</tt>' % output[0]
print '<ul>'
for i in output[1:]:
print '<li><tt><a href="?%s">%s</a></tt></li>' % (i, i)
print '</ul>'
print '</td></tr></table>'
def ninja_dump(target):
proc = subprocess.Popen([sys.argv[1], '-t', 'query', target],
stdout=subprocess.PIPE)
return proc.communicate()[0]
class RequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_GET(self):
assert self.path[0] == '/'
target = self.path[1:]
if target == '':
self.send_response(302)
self.send_header('Location', '?' + sys.argv[2])
self.end_headers()
return
if not target.startswith('?'):
self.send_response(404)
self.end_headers()
return
target = target[1:]
input = ninja_dump(target)
self.send_response(200)
self.end_headers()
stdout = sys.stdout
sys.stdout = self.wfile
try:
generate_html(parse(input.strip()))
finally:
sys.stdout = stdout
def log_message(self, format, *args):
pass # Swallow console spam.
port = 8000
httpd = BaseHTTPServer.HTTPServer(('',port), RequestHandler)
try:
print 'Web server running on port %d, ctl-C to abort...' % port
webbrowser.open_new('http://localhost:%s' % port)
httpd.serve_forever()
except KeyboardInterrupt:
print
pass # Swallow console spam.
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