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#!/usr/bin/python
"""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):
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;
}
</style>'''
print '<table><tr><td colspan=3>'
print '<h1>%s</h1>' % node
print '</td></tr>'
print '<tr><td valign=top>'
print '<h2>input</h2>'
if input:
print '<p><tt>%s</tt>:</p>' % input[0]
print '<ul>'
for i in input[1:]:
print '<li><tt><a href="?%s">%s</a></tt></li>' % (i, i)
print '</ul>'
print '</td>'
print '<td width=50> </td>'
print '<td valign=top>'
print '<h2>outputs</h2>'
for output in outputs:
print '<p><tt>%s</tt>:</p>' % 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(['./ninja', '-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[1])
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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