[Findit] Adding try job dashboard

appengine/findit/handlers/try_job_dashboard.py

Index: appengine/findit/handlers/try_job_dashboard.py
diff --git a/appengine/findit/handlers/try_job_dashboard.py b/appengine/findit/handlers/try_job_dashboard.py
new file mode 100644
index 0000000000000000000000000000000000000000..cc1589daa662a7bd8f65014185d7e5109207b60c
--- /dev/null
+++ b/appengine/findit/handlers/try_job_dashboard.py
@@ -0,0 +1,109 @@
+# 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.
+from datetime import datetime
+from datetime import time
+from datetime import timedelta
+
+from common.base_handler import BaseHandler
+from common.base_handler import Permission
+from model.wf_try_job_data import WfTryJobData
+
+
+# TODO(lijeffrey): Refactor formatting functions into a separate module that
+# can be shared across Findit.
+def _RemoveMicrosecondsFromDelta(delta):
+  """Returns a timedelta object without microseconds based on delta."""
+  return delta - timedelta(microseconds=delta.microseconds)
+
+
+def _FormatTimedelta(delta):
+  if not delta:
+    return None
+  hours, remainder = divmod(delta.seconds, 3600)
+  minutes, seconds = divmod(remainder, 60)
+  return '%02d:%02d:%02d' % (hours, minutes, seconds)
+
+
+def _FormatDatetime(date):
+  if not date:
+    return None
+  else:
+    return date.strftime('%Y-%m-%d %H:%M:%S UTC')
+
+
+class TryJobDashboard(BaseHandler):
+  PERMISSION_LEVEL = Permission.ANYONE
+
+  def HandleGet(self):
+    """Shows a list of Findit try job results and statuses in an HTML page."""
+    midnight_today = datetime.combine(datetime.utcnow(), time.min)
+    midnight_yesterday = midnight_today - timedelta(days=1)
+    midnight_tomorrow = midnight_today + timedelta(days=1)
+
+    start = self.request.get('start_date')
+    end = self.request.get('end_date')
+    start_date = (datetime.strptime(start, '%Y-%m-%d') if start else
+                  midnight_yesterday)
+    end_date = (datetime.strptime(end, '%Y-%m-%d') if end else
+                midnight_tomorrow)
+
+    if start or not end:  # pragma: no branch
+      # If a start date is specified, get everything since then.
+      try_job_query = WfTryJobData.query(
+          WfTryJobData.request_time >= start_date,
+          WfTryJobData.request_time < end_date)
+    else:  # pragma: no cover
+      # If no start date specified, then get everything up until end_date.
+      start_date = None
+      try_job_query = WfTryJobData.query(
+          WfTryJobData.request_time < end_date)
+
+    try_job_data_list = try_job_query.fetch()
+    try_jobs_in_progress = []
+    try_jobs_with_error = []
+    successfully_completed_try_jobs = []
+
+    for try_job_data in try_job_data_list:
+      try_job_display_data = {
+          'master_name': try_job_data.master_name,
+          'builder_name': try_job_data.builder_name,
+          'build_number': try_job_data.build_number,
+          'try_job_type': try_job_data.try_job_type,
+          'start_time': _FormatDatetime(try_job_data.start_time),
+          'request_time': _FormatDatetime(try_job_data.request_time),
+          'try_job_url': try_job_data.try_job_url
+      }
+
+      if not try_job_data.end_time and not try_job_data.error:
+        try_job_display_data['elapsed_time'] = (
+            _FormatTimedelta(datetime.utcnow() - try_job_data.request_time) if
+            try_job_data.request_time else None)
+
+        try_job_display_data['status'] = (
+            'running' if try_job_data.start_time else 'pending')
+        try_jobs_in_progress.append(try_job_display_data)
+      elif try_job_data.error:
+        try_job_display_data['error'] = try_job_data.error['message']
+        # It is possible end_time is not available if the error was timeout.
+        try_job_display_data['end_time'] = _FormatDatetime(
+            try_job_data.end_time)
+        try_jobs_with_error.append(try_job_display_data)
+      else:
+        try_job_display_data['culprit_found'] = bool(try_job_data.culprits)
+        try_job_display_data['end_time'] = (
+            _FormatDatetime(try_job_data.end_time))
+        successfully_completed_try_jobs.append(try_job_display_data)
+
+    data = {
+        'start_date': _FormatDatetime(start_date),
+        'end_date': _FormatDatetime(end_date),
+        'try_jobs_in_progress': try_jobs_in_progress,
+        'try_jobs_with_error': try_jobs_with_error,
+        'successfully_completed_try_jobs': successfully_completed_try_jobs
+    }
+
+    return {
+        'template': 'try_job_dashboard.html',
+        'data': data
+    }