Add support for bisect bots to post results to dashboard.

dashboard/dashboard/bisect_report.py

Index: dashboard/dashboard/bisect_report.py
diff --git a/dashboard/dashboard/bisect_report.py b/dashboard/dashboard/bisect_report.py
new file mode 100644
index 0000000000000000000000000000000000000000..00e6eef0278d665b99888fa4f5aa3b176ab0fc2e
--- /dev/null
+++ b/dashboard/dashboard/bisect_report.py
@@ -0,0 +1,143 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Generates reports base on bisect result data."""
+
+import copy
+
+_CONFIDENCE_THRESHOLD = 99.5
+
+_BISECT_REPORT_TEMPLATE = """
+===== BISECT JOB RESULTS =====
+Status: %(status)s
+
+%(result)s
+
+Bisect job ran on: %(bisect_bot)s
+Bug ID: %(bug_id)s
+
+Test Command: %(command)s
+Test Metric: %(metric)s
+Relative Change: %(change)s
+Score: %(score)s
+
+Buildbot stdio: %(buildbot_log_url)s
+Job details: %(issue_url)s
+
+"""
+
+_RESULTS_REVISION_INFO = """
+===== SUSPECTED CL(s) =====
+Subject : %(subject)s
+Author  : %(author)s
+Commit description:
+  %(commit_info)s
+Commit  : %(cl)s
+Date    : %(cl_date)s
+
+"""
+
+# When the bisect was aborted without a bisect failure the following template
+# is used.
+_ABORT_REASON_TEMPLATE = """
+=== Bisection aborted ===
+The bisect was aborted because %(abort_reason)s
+Please contact the the team (see below) if you believe this is in error.
+
+"""
+
+_WARNINGS_TEMPLATE = """
+=== Warnings ===
+The following warnings were raised by the bisect job:
+
+ * %(warnings)s
+
+"""
+
+_REVISION_TABLE_TEMPLATE = """
+===== TESTED REVISIONS =====
+%(table)s"""
+
+_RESULTS_THANKYOU = """
+| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
+|  X  | for more information addressing perf regression bugs. For feedback,
+| / \\ | file a bug with label Cr-Tests-AutoBisect.  Thank you!"""
+
+
+def GetReport(try_job_entity):
+  """Generates a report for bisect results.
+
+  This was ported from recipe_modules/auto_bisect/bisect_results.py.
+
+  Args:
+    try_job_entity: A TryJob entity.
+
+  Returns:
+    Bisect report string.
+  """
+  results_data = copy.deepcopy(try_job_entity.results_data)
+  if not results_data:
+    return ''
+  result = ''
+  if results_data.get('aborted_reason'):
+    result += _ABORT_REASON_TEMPLATE % results_data['aborted_reason']
+
+  if results_data.get('warnings'):
+    result += _WARNINGS_TEMPLATE % results_data['warnings']
+
+  if results_data.get('culprit_data'):
+    result += _RESULTS_REVISION_INFO % results_data['culprit_data']
+
+  if results_data.get('revision_data'):
+    result += _RevisionTable(results_data)
+
+  results_data['result'] = result
+  report = _BISECT_REPORT_TEMPLATE % results_data
+  report += _RESULTS_THANKYOU
+  return report
+
+
+def _RevisionTable(results_data):
+  is_return_code = results_data.get('test_type') == 'return_code'
+  has_culprit = 'culprit_data' in results_data
+
+  def RevisionRow(r):
+    result = [
+        r['depot_name'],
+        r['deps_revision'] or 'r' + str(r['commit_pos']),
+        _FormatNumber(r['mean_value']),
+        _FormatNumber(r['std_dev']),
+        len(r['values']),
+        r['result'],
+        '<-' if has_culprit == r else '',
+    ]
+    return map(str, result)
+  revision_rows = [RevisionRow(r) for r in results_data['revision_data']]
+
+  headers_row = [[
+      'Depot',
+      'Revision',
+      'Mean Value' if not is_return_code else 'Exit Code',
+      'Std. Dev.',
+      'Num Values',
+      'Good?',
+      '',
+  ]]
+  all_rows = headers_row + revision_rows
+  return _REVISION_TABLE_TEMPLATE % {'table': _PrettyTable(all_rows)}
+
+
+def _FormatNumber(x):
+  if x is None:
+    return 'N/A'
+  if isinstance(x, int):
+    return str(x)
+  return str(round(x, 6))
+
+
+def _PrettyTable(data):
+  results = []
+  for row in data:
+    results.append(('%-12s' * len(row) % tuple(row)).rstrip())
+  return '\n'.join(results)