diff --git a/greentest/generate_report.py b/greentest/generate_report.py
new file mode 100755
index 0000000..7ac18be
--- /dev/null
+++ b/greentest/generate_report.py
@@ -0,0 +1,143 @@
+#!/usr/bin/python
+import sys
+import os
+import sqlite3
+
+def make_table(database):
+    c = sqlite3.connect(database)
+    res = c.execute(('select command_record.id, testname, hub, runs, errors, fails, '
+                     'timeouts, exitcode, stdout from parsed_command_record join '
+                     'command_record on parsed_command_record.id=command_record.id ')).fetchall()
+    table = {} # testname -> hub -> test_result (runs, errors, fails, timeouts)
+    hub_stats = {} # hub -> cumulative test_result
+    tests = set()
+    for id, testname, hub, runs, errors, fails, timeouts, exitcode, stdout in res:
+        tests.add(testname)
+        test_result = TestResult(runs, errors, fails, timeouts, exitcode, id, stdout)
+        table.setdefault(testname, {})[hub] = test_result
+        hub_stats.setdefault(hub, TestResult(0,0,0,0)).__iadd__(test_result)
+    hubs = hub_stats.items()
+    hubs.sort(key=lambda t: t[1].passed, reverse=True)
+    return table, [x[0] for x in hubs], sorted(tests), hub_stats
+
+class TestResult:
+
+    def __init__(self, runs, errors, fails, timeouts, exitcode=None, id=None, output=None):
+        self.runs = runs
+        self.errors = errors
+        self.fails = fails
+        self.timeouts = timeouts
+        self.exitcode = exitcode
+        self.id = id
+        self.output = output
+
+    @property
+    def passed(self):
+        return self.runs - self.errors - self.fails
+
+    def __iadd__(self, other):
+        self.runs += other.runs
+        self.errors += other.errors
+        self.fails += other.fails
+        self.timeouts += other.timeouts
+        if self.exitcode != other.exitcode:
+            self.exitcode = None
+        self.id = None
+        self.output = None
+
+    def color(self):
+        if self.timeouts or self.exitcode in [7, 9, 10]:
+            return 'red'
+        elif self.errors or self.fails or self.exitcode:
+            return 'yellow'
+        else:
+            return '"#72ff75"'
+
+    def text(self):
+        errors = []
+        if self.fails:
+            errors += ['%s failed' % self.fails]
+        if self.errors:
+            errors += ['%s raised' % self.errors]
+        if self.timeouts:
+            errors += ['%s timeout' % self.timeouts]
+        if not errors:
+            if self.exitcode in [7, 9, 10]:
+                errors += ['TIMEOUT']
+            if self.exitcode:
+                errors += ['exitcode=%s' % self.exitcode]
+            if self.output is not None:
+                output = self.output.lower()
+                warning = output.count('warning')
+                if warning:
+                    errors += ['%s warnings' % warning]
+                tracebacks = output.count('traceback')
+                if tracebacks:
+                    errors += ['%s tracebacks' % tracebacks]
+        return '\n'.join(["%s passed" % self.passed] + errors)
+       
+    def format(self):
+        text = self.text().replace('\n', '<br>\n')
+        if self.id is not None:
+            text = '<a href="%s.txt">%s</a>' % (self.id, text)
+        return '<td align=center bgcolor=%s>%s</td>' % (self.color(), text)
+
+def format_table(table, hubs, tests, hub_stats):
+    r = '<table border=1>\n<tr>\n<td/>\n'
+    for hub in hubs:
+        r += '<td align=center>%s</td>\n' % hub
+    r += '</tr>\n'
+    for test in tests:
+        r += '<tr><td>%s</td>' % test
+        for hub in hubs:
+            test_result = table[test].get(hub)
+            if test_result is None:
+                r += '<td align=center bgcolor=gray>no data</td>'
+            else:
+                r += test_result.format() + '\n'
+        r += '</tr>'
+
+    r += '<tr><td colspan=%s/></tr>' % (len(hubs)+1)
+
+    r += '<tr><td>Total</td>'
+    for hub in hubs:
+        test_result = hub_stats.get(hub)
+        if test_result is None:
+            r += '<td align=center bgcolor=gray>no data</td>'
+        else:
+            r += test_result.format() + '\n'
+    r += '</tr>'
+
+    r += '</table>'
+    return r
+
+def format_html(table):
+    r = '<html><head><style type="text/css">a {color: black; text-decoration: none;} </style></head><body>'
+    r += table
+    r += '</body></html>'
+    return r
+
+def generate_raw_results(path, database):
+    c = sqlite3.connect(database)
+    res = c.execute('select id, stdout from command_record').fetchall()
+    for id, out in res:
+        file(os.path.join(path, '%s.txt' % id), 'w').write(out)
+        sys.stderr.write('.')
+    sys.stderr.write('\n')
+
+def main():
+    [db] = sys.argv[1:]
+    r = make_table(db)
+    report = format_html(format_table(*r))
+    changeset = db.split('.')[1]
+    path = 'htmlreports/%s' % changeset
+    try:
+        os.makedirs(path)
+    except OSError, ex:
+        if 'File exists' not in str(ex):
+            raise
+    file(path + '/index.html', 'w').write(report)
+    generate_raw_results(path, db)
+
+if __name__=='__main__':
+    main()