Added graph-helpers.py from Chris Lamb <chris@chris-lamb.co.uk>.

contrib/graph-helpers.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python
+
+"""
+    live-helper simulated execution graph generator.
+    Copyright (C) 2007  Chris Lamb <chris@chris-lamb.co.uk>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+import sys, re
+import pygraphviz
+
+groups = {
+    'lh_bootstrap' : 'orange',
+    'lh_chroot' : 'red',
+    'lh_source' : 'blue',
+    'lh_binary' : 'green',
+    'lh_build' : 'brown'
+}
+pattern = re.compile(r'^(lh_.+?) ')
+
+def main(start):
+    global prev
+    G = pygraphviz.AGraph(directed=True)
+    G.graph_attr['label'] = 'Simulated execution trace for live-helper.'
+
+    def helper(filename):
+        global prev
+        for line in gen_matches(filename):
+            G.add_edge(prev, line)
+            style(G.get_node(prev), prev)
+            prev = line
+            helper(line)
+
+    prev = start
+    helper(start)
+    G.layout(prog='dot')
+    print G.draw(format='svg')
+
+def style(node, name):
+    if name in groups.keys():
+        node.attr['shape'] = 'box'
+        node.attr['style'] = 'bold'
+    else:
+        node.attr['fontsize'] = '11'
+    for group_name, color in groups.iteritems():
+        if name.startswith(group_name):
+            node.attr['color'] = color
+    return node
+
+def gen_matches(filename):
+    f = open('/usr/bin/%s' % filename, 'r')
+    for line in f.xreadlines():
+        match = pattern.match(line)
+        if match:
+            yield match.group(1)
+    f.close()
+
+if __name__ == "__main__":
+    if len(sys.argv) == 2:
+        main(sys.argv[1])
+    else:
+        main('lh_build')