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+# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+"""A module to handle the report format."""
+from __future__ import print_function
+
+import datetime
+import functools
+import itertools
+import json
+import os
+import re
+
+from cros_utils.tabulator import AmeanResult
+from cros_utils.tabulator import Cell
+from cros_utils.tabulator import CoeffVarFormat
+from cros_utils.tabulator import CoeffVarResult
+from cros_utils.tabulator import Column
+from cros_utils.tabulator import Format
+from cros_utils.tabulator import GmeanRatioResult
+from cros_utils.tabulator import LiteralResult
+from cros_utils.tabulator import MaxResult
+from cros_utils.tabulator import MinResult
+from cros_utils.tabulator import PValueFormat
+from cros_utils.tabulator import PValueResult
+from cros_utils.tabulator import RatioFormat
+from cros_utils.tabulator import RawResult
+from cros_utils.tabulator import StdResult
+from cros_utils.tabulator import TableFormatter
+from cros_utils.tabulator import TableGenerator
+from cros_utils.tabulator import TablePrinter
+from update_telemetry_defaults import TelemetryDefaults
+
+from column_chart import ColumnChart
+from results_organizer import OrganizeResults
+
+import results_report_templates as templates
+
+
+def ParseChromeosImage(chromeos_image):
+ """Parse the chromeos_image string for the image and version.
+
+ The chromeos_image string will probably be in one of two formats:
+ 1: <path-to-chroot>/src/build/images/<board>/<ChromeOS-version>.<datetime>/ \
+ chromiumos_test_image.bin
+ 2: <path-to-chroot>/chroot/tmp/<buildbot-build>/<ChromeOS-version>/ \
+ chromiumos_test_image.bin
+
+ We parse these strings to find the 'chromeos_version' to store in the
+ json archive (without the .datatime bit in the first case); and also
+ the 'chromeos_image', which would be all of the first case, but only the
+ part after '/chroot/tmp' in the second case.
+
+ Args:
+ chromeos_image: string containing the path to the chromeos_image that
+ crosperf used for the test.
+
+ Returns:
+ version, image: The results of parsing the input string, as explained
+ above.
+ """
+ # Find the Chromeos Version, e.g. R45-2345.0.0.....
+ # chromeos_image should have been something like:
+ # <path>/<board-trybot-release>/<chromeos-version>/chromiumos_test_image.bin"
+ if chromeos_image.endswith('/chromiumos_test_image.bin'):
+ full_version = chromeos_image.split('/')[-2]
+ # Strip the date and time off of local builds (which have the format
+ # "R43-2345.0.0.date-and-time").
+ version, _ = os.path.splitext(full_version)
+ else:
+ version = ''
+
+ # Find the chromeos image. If it's somewhere in .../chroot/tmp/..., then
+ # it's an official image that got downloaded, so chop off the download path
+ # to make the official image name more clear.
+ official_image_path = '/chroot/tmp'
+ if official_image_path in chromeos_image:
+ image = chromeos_image.split(official_image_path, 1)[1]
+ else:
+ image = chromeos_image
+ return version, image
+
+
+def _AppendUntilLengthIs(gen, the_list, target_len):
+ """Appends to `list` until `list` is `target_len` elements long.
+
+ Uses `gen` to generate elements.
+ """
+ the_list.extend(gen() for _ in xrange(target_len - len(the_list)))
+ return the_list
+
+
+def _FilterPerfReport(event_threshold, report):
+ """Filters out entries with `< event_threshold` percent in a perf report."""
+ def filter_dict(m):
+ return {fn_name: pct for fn_name, pct in m.iteritems()
+ if pct >= event_threshold}
+ return {event: filter_dict(m) for event, m in report.iteritems()}
+
+
+class _PerfTable(object):
+ """Generates dicts from a perf table.
+
+ Dicts look like:
+ {'benchmark_name': {'perf_event_name': [LabelData]}}
+ where LabelData is a list of perf dicts, each perf dict coming from the same
+ label.
+ Each perf dict looks like {'function_name': 0.10, ...} (where 0.10 is the
+ percentage of time spent in function_name).
+ """
+
+ def __init__(self, benchmark_names_and_iterations, label_names,
+ read_perf_report, event_threshold=None):
+ """Constructor.
+
+ read_perf_report is a function that takes a label name, benchmark name, and
+ benchmark iteration, and returns a dictionary describing the perf output for
+ that given run.
+ """
+ self.event_threshold = event_threshold
+ self._label_indices = {name: i for i, name in enumerate(label_names)}
+ self.perf_data = {}
+ for label in label_names:
+ for bench_name, bench_iterations in benchmark_names_and_iterations:
+ for i in xrange(bench_iterations):
+ report = read_perf_report(label, bench_name, i)
+ self._ProcessPerfReport(report, label, bench_name, i)
+
+ def _ProcessPerfReport(self, perf_report, label, benchmark_name, iteration):
+ """Add the data from one run to the dict."""
+ perf_of_run = perf_report
+ if self.event_threshold is not None:
+ perf_of_run = _FilterPerfReport(self.event_threshold, perf_report)
+ if benchmark_name not in self.perf_data:
+ self.perf_data[benchmark_name] = {event: [] for event in perf_of_run}
+ ben_data = self.perf_data[benchmark_name]
+ label_index = self._label_indices[label]
+ for event in ben_data:
+ _AppendUntilLengthIs(list, ben_data[event], label_index + 1)
+ data_for_label = ben_data[event][label_index]
+ _AppendUntilLengthIs(dict, data_for_label, iteration + 1)
+ data_for_label[iteration] = perf_of_run[event] if perf_of_run else {}
+
+
+def _GetResultsTableHeader(ben_name, iterations):
+ benchmark_info = ('Benchmark: {0}; Iterations: {1}'
+ .format(ben_name, iterations))
+ cell = Cell()
+ cell.string_value = benchmark_info
+ cell.header = True
+ return [[cell]]
+
+
+def _ParseColumn(columns, iteration):
+ new_column = []
+ for column in columns:
+ if column.result.__class__.__name__ != 'RawResult':
+ new_column.append(column)
+ else:
+ new_column.extend(Column(LiteralResult(i), Format(), str(i + 1))
+ for i in xrange(iteration))
+ return new_column
+
+
+def _GetTables(benchmark_results, columns, table_type):
+ iter_counts = benchmark_results.iter_counts
+ result = benchmark_results.run_keyvals
+ tables = []
+ for bench_name, runs in result.iteritems():
+ iterations = iter_counts[bench_name]
+ ben_table = _GetResultsTableHeader(bench_name, iterations)
+
+ all_runs_empty = all(not dict for label in runs for dict in label)
+ if all_runs_empty:
+ cell = Cell()
+ cell.string_value = ('This benchmark contains no result.'
+ ' Is the benchmark name valid?')
+ cell_table = [[cell]]
+ else:
+ table = TableGenerator(runs, benchmark_results.label_names).GetTable()
+ parsed_columns = _ParseColumn(columns, iterations)
+ tf = TableFormatter(table, parsed_columns)
+ cell_table = tf.GetCellTable(table_type)
+ tables.append(ben_table)
+ tables.append(cell_table)
+ return tables
+
+
+def _GetPerfTables(benchmark_results, columns, table_type):
+ p_table = _PerfTable(benchmark_results.benchmark_names_and_iterations,
+ benchmark_results.label_names,
+ benchmark_results.read_perf_report)
+
+ tables = []
+ for benchmark in p_table.perf_data:
+ iterations = benchmark_results.iter_counts[benchmark]
+ ben_table = _GetResultsTableHeader(benchmark, iterations)
+ tables.append(ben_table)
+ benchmark_data = p_table.perf_data[benchmark]
+ table = []
+ for event in benchmark_data:
+ tg = TableGenerator(benchmark_data[event],
+ benchmark_results.label_names,
+ sort=TableGenerator.SORT_BY_VALUES_DESC)
+ table = tg.GetTable(ResultsReport.PERF_ROWS)
+ parsed_columns = _ParseColumn(columns, iterations)
+ tf = TableFormatter(table, parsed_columns)
+ tf.GenerateCellTable(table_type)
+ tf.AddColumnName()
+ tf.AddLabelName()
+ tf.AddHeader(str(event))
+ table = tf.GetCellTable(table_type, headers=False)
+ tables.append(table)
+ return tables
+
+
+class ResultsReport(object):
+ """Class to handle the report format."""
+ MAX_COLOR_CODE = 255
+ PERF_ROWS = 5
+
+ def __init__(self, results):
+ self.benchmark_results = results
+
+ def _GetTablesWithColumns(self, columns, table_type, perf):
+ get_tables = _GetPerfTables if perf else _GetTables
+ return get_tables(self.benchmark_results, columns, table_type)
+
+ def GetFullTables(self, perf=False):
+ columns = [Column(RawResult(), Format()),
+ Column(MinResult(), Format()),
+ Column(MaxResult(), Format()),
+ Column(AmeanResult(), Format()),
+ Column(StdResult(), Format(), 'StdDev'),
+ Column(CoeffVarResult(), CoeffVarFormat(), 'StdDev/Mean'),
+ Column(GmeanRatioResult(), RatioFormat(), 'GmeanSpeedup'),
+ Column(PValueResult(), PValueFormat(), 'p-value')]
+ return self._GetTablesWithColumns(columns, 'full', perf)
+
+ def GetSummaryTables(self, perf=False):
+ columns = [Column(AmeanResult(), Format()),
+ Column(StdResult(), Format(), 'StdDev'),
+ Column(CoeffVarResult(), CoeffVarFormat(), 'StdDev/Mean'),
+ Column(GmeanRatioResult(), RatioFormat(), 'GmeanSpeedup'),
+ Column(PValueResult(), PValueFormat(), 'p-value')]
+ return self._GetTablesWithColumns(columns, 'summary', perf)
+
+
+def _PrintTable(tables, out_to):
+ # tables may be None.
+ if not tables:
+ return ''
+
+ if out_to == 'HTML':
+ out_type = TablePrinter.HTML
+ elif out_to == 'PLAIN':
+ out_type = TablePrinter.PLAIN
+ elif out_to == 'CONSOLE':
+ out_type = TablePrinter.CONSOLE
+ elif out_to == 'TSV':
+ out_type = TablePrinter.TSV
+ elif out_to == 'EMAIL':
+ out_type = TablePrinter.EMAIL
+ else:
+ raise ValueError('Invalid out_to value: %s' % (out_to,))
+
+ printers = (TablePrinter(table, out_type) for table in tables)
+ return ''.join(printer.Print() for printer in printers)
+
+
+class TextResultsReport(ResultsReport):
+ """Class to generate text result report."""
+
+ H1_STR = '==========================================='
+ H2_STR = '-------------------------------------------'
+
+ def __init__(self, results, email=False, experiment=None):
+ super(TextResultsReport, self).__init__(results)
+ self.email = email
+ self.experiment = experiment
+
+ @staticmethod
+ def _MakeTitle(title):
+ header_line = TextResultsReport.H1_STR
+ # '' at the end gives one newline.
+ return '\n'.join([header_line, title, header_line, ''])
+
+ @staticmethod
+ def _MakeSection(title, body):
+ header_line = TextResultsReport.H2_STR
+ # '\n' at the end gives us two newlines.
+ return '\n'.join([header_line, title, header_line, body, '\n'])
+
+ @staticmethod
+ def FromExperiment(experiment, email=False):
+ results = BenchmarkResults.FromExperiment(experiment)
+ return TextResultsReport(results, email, experiment)
+
+ def GetStatusTable(self):
+ """Generate the status table by the tabulator."""
+ table = [['', '']]
+ columns = [Column(LiteralResult(iteration=0), Format(), 'Status'),
+ Column(LiteralResult(iteration=1), Format(), 'Failing Reason')]
+
+ for benchmark_run in self.experiment.benchmark_runs:
+ status = [benchmark_run.name, [benchmark_run.timeline.GetLastEvent(),
+ benchmark_run.failure_reason]]
+ table.append(status)
+ cell_table = TableFormatter(table, columns).GetCellTable('status')
+ return [cell_table]
+
+ def GetReport(self):
+ """Generate the report for email and console."""
+ output_type = 'EMAIL' if self.email else 'CONSOLE'
+ experiment = self.experiment
+
+ sections = []
+ if experiment is not None:
+ title_contents = "Results report for '%s'" % (experiment.name, )
+ else:
+ title_contents = 'Results report'
+ sections.append(self._MakeTitle(title_contents))
+
+ summary_table = _PrintTable(self.GetSummaryTables(perf=False), output_type)
+ sections.append(self._MakeSection('Summary', summary_table))
+
+ if experiment is not None:
+ table = _PrintTable(self.GetStatusTable(), output_type)
+ sections.append(self._MakeSection('Benchmark Run Status', table))
+
+ perf_table = _PrintTable(self.GetSummaryTables(perf=True), output_type)
+ if perf_table:
+ sections.append(self._MakeSection('Perf Data', perf_table))
+
+ if experiment is not None:
+ experiment_file = experiment.experiment_file
+ sections.append(self._MakeSection('Experiment File', experiment_file))
+
+ cpu_info = experiment.machine_manager.GetAllCPUInfo(experiment.labels)
+ sections.append(self._MakeSection('CPUInfo', cpu_info))
+
+ return '\n'.join(sections)
+
+
+def _GetHTMLCharts(label_names, test_results):
+ charts = []
+ for item, runs in test_results.iteritems():
+ # Fun fact: label_names is actually *entirely* useless as a param, since we
+ # never add headers. We still need to pass it anyway.
+ table = TableGenerator(runs, label_names).GetTable()
+ columns = [Column(AmeanResult(), Format()), Column(MinResult(), Format()),
+ Column(MaxResult(), Format())]
+ tf = TableFormatter(table, columns)
+ data_table = tf.GetCellTable('full', headers=False)
+
+ for cur_row_data in data_table:
+ test_key = cur_row_data[0].string_value
+ title = '{0}: {1}'.format(item, test_key.replace('/', ''))
+ chart = ColumnChart(title, 300, 200)
+ chart.AddColumn('Label', 'string')
+ chart.AddColumn('Average', 'number')
+ chart.AddColumn('Min', 'number')
+ chart.AddColumn('Max', 'number')
+ chart.AddSeries('Min', 'line', 'black')
+ chart.AddSeries('Max', 'line', 'black')
+ cur_index = 1
+ for label in label_names:
+ chart.AddRow([label,
+ cur_row_data[cur_index].value,
+ cur_row_data[cur_index + 1].value,
+ cur_row_data[cur_index + 2].value])
+ if isinstance(cur_row_data[cur_index].value, str):
+ chart = None
+ break
+ cur_index += 3
+ if chart:
+ charts.append(chart)
+ return charts
+
+
+class HTMLResultsReport(ResultsReport):
+ """Class to generate html result report."""
+
+ def __init__(self, benchmark_results, experiment=None):
+ super(HTMLResultsReport, self).__init__(benchmark_results)
+ self.experiment = experiment
+
+ @staticmethod
+ def FromExperiment(experiment):
+ return HTMLResultsReport(BenchmarkResults.FromExperiment(experiment),
+ experiment=experiment)
+
+ def GetReport(self):
+ label_names = self.benchmark_results.label_names
+ test_results = self.benchmark_results.run_keyvals
+ charts = _GetHTMLCharts(label_names, test_results)
+ chart_javascript = ''.join(chart.GetJavascript() for chart in charts)
+ chart_divs = ''.join(chart.GetDiv() for chart in charts)
+
+ summary_table = self.GetSummaryTables()
+ full_table = self.GetFullTables()
+ perf_table = self.GetSummaryTables(perf=True)
+ experiment_file = ''
+ if self.experiment is not None:
+ experiment_file = self.experiment.experiment_file
+ # Use kwargs for sanity, and so that testing is a bit easier.
+ return templates.GenerateHTMLPage(perf_table=perf_table,
+ chart_js=chart_javascript,
+ summary_table=summary_table,
+ print_table=_PrintTable,
+ chart_divs=chart_divs,
+ full_table=full_table,
+ experiment_file=experiment_file)
+
+
+def ParseStandardPerfReport(report_data):
+ """Parses the output of `perf report`.
+
+ It'll parse the following:
+ {{garbage}}
+ # Samples: 1234M of event 'foo'
+
+ 1.23% command shared_object location function::name
+
+ 1.22% command shared_object location function2::name
+
+ # Samples: 999K of event 'bar'
+
+ 0.23% command shared_object location function3::name
+ {{etc.}}
+
+ Into:
+ {'foo': {'function::name': 1.23, 'function2::name': 1.22},
+ 'bar': {'function3::name': 0.23, etc.}}
+ """
+ # This function fails silently on its if it's handed a string (as opposed to a
+ # list of lines). So, auto-split if we do happen to get a string.
+ if isinstance(report_data, basestring):
+ report_data = report_data.splitlines()
+
+ # Samples: N{K,M,G} of event 'event-name'
+ samples_regex = re.compile(r"#\s+Samples: \d+\S? of event '([^']+)'")
+
+ # We expect lines like:
+ # N.NN% command samples shared_object [location] symbol
+ #
+ # Note that we're looking at stripped lines, so there is no space at the
+ # start.
+ perf_regex = re.compile(r'^(\d+(?:.\d*)?)%' # N.NN%
+ r'\s*\d+' # samples count (ignored)
+ r'\s*\S+' # command (ignored)
+ r'\s*\S+' # shared_object (ignored)
+ r'\s*\[.\]' # location (ignored)
+ r'\s*(\S.+)' # function
+ )
+
+ stripped_lines = (l.strip() for l in report_data)
+ nonempty_lines = (l for l in stripped_lines if l)
+ # Ignore all lines before we see samples_regex
+ interesting_lines = itertools.dropwhile(lambda x: not samples_regex.match(x),
+ nonempty_lines)
+
+ first_sample_line = next(interesting_lines, None)
+ # Went through the entire file without finding a 'samples' header. Quit.
+ if first_sample_line is None:
+ return {}
+
+ sample_name = samples_regex.match(first_sample_line).group(1)
+ current_result = {}
+ results = {sample_name: current_result}
+ for line in interesting_lines:
+ samples_match = samples_regex.match(line)
+ if samples_match:
+ sample_name = samples_match.group(1)
+ current_result = {}
+ results[sample_name] = current_result
+ continue
+
+ match = perf_regex.match(line)
+ if not match:
+ continue
+ percentage_str, func_name = match.groups()
+ try:
+ percentage = float(percentage_str)
+ except ValueError:
+ # Couldn't parse it; try to be "resilient".
+ continue
+ current_result[func_name] = percentage
+ return results
+
+
+def _ReadExperimentPerfReport(results_directory, label_name, benchmark_name,
+ benchmark_iteration):
+ """Reads a perf report for the given benchmark. Returns {} on failure.
+
+ The result should be a map of maps; it should look like:
+ {perf_event_name: {function_name: pct_time_spent}}, e.g.
+ {'cpu_cycles': {'_malloc': 10.0, '_free': 0.3, ...}}
+ """
+ raw_dir_name = label_name + benchmark_name + str(benchmark_iteration + 1)
+ dir_name = ''.join(c for c in raw_dir_name if c.isalnum())
+ file_name = os.path.join(results_directory, dir_name, 'perf.data.report.0')
+ try:
+ with open(file_name) as in_file:
+ return ParseStandardPerfReport(in_file)
+ except IOError:
+ # Yes, we swallow any IO-related errors.
+ return {}
+
+
+# Split out so that testing (specifically: mocking) is easier
+def _ExperimentToKeyvals(experiment, for_json_report):
+ """Converts an experiment to keyvals."""
+ return OrganizeResults(experiment.benchmark_runs, experiment.labels,
+ json_report=for_json_report)
+
+
+class BenchmarkResults(object):
+ """The minimum set of fields that any ResultsReport will take."""
+ def __init__(self, label_names, benchmark_names_and_iterations, run_keyvals,
+ read_perf_report=None):
+ if read_perf_report is None:
+ def _NoPerfReport(*_args, **_kwargs):
+ return {}
+ read_perf_report = _NoPerfReport
+
+ self.label_names = label_names
+ self.benchmark_names_and_iterations = benchmark_names_and_iterations
+ self.iter_counts = dict(benchmark_names_and_iterations)
+ self.run_keyvals = run_keyvals
+ self.read_perf_report = read_perf_report
+
+ @staticmethod
+ def FromExperiment(experiment, for_json_report=False):
+ label_names = [label.name for label in experiment.labels]
+ benchmark_names_and_iterations = [(benchmark.name, benchmark.iterations)
+ for benchmark in experiment.benchmarks]
+ run_keyvals = _ExperimentToKeyvals(experiment, for_json_report)
+ read_perf_report = functools.partial(_ReadExperimentPerfReport,
+ experiment.results_directory)
+ return BenchmarkResults(label_names, benchmark_names_and_iterations,
+ run_keyvals, read_perf_report)
+
+
+def _GetElemByName(name, from_list):
+ """Gets an element from the given list by its name field.
+
+ Raises an error if it doesn't find exactly one match.
+ """
+ elems = [e for e in from_list if e.name == name]
+ if len(elems) != 1:
+ raise ValueError('Expected 1 item named %s, found %d' % (name, len(elems)))
+ return elems[0]
+
+
+def _Unlist(l):
+ """If l is a list, extracts the first element of l. Otherwise, returns l."""
+ return l[0] if isinstance(l, list) else l
+
+class JSONResultsReport(ResultsReport):
+ """Class that generates JSON reports for experiments."""
+
+ def __init__(self, benchmark_results, date=None, time=None, experiment=None,
+ json_args=None):
+ """Construct a JSONResultsReport.
+
+ json_args is the dict of arguments we pass to json.dumps in GetReport().
+ """
+ super(JSONResultsReport, self).__init__(benchmark_results)
+
+ defaults = TelemetryDefaults()
+ defaults.ReadDefaultsFile()
+ summary_field_defaults = defaults.GetDefault()
+ if summary_field_defaults is None:
+ summary_field_defaults = {}
+ self.summary_field_defaults = summary_field_defaults
+
+ if json_args is None:
+ json_args = {}
+ self.json_args = json_args
+
+ self.experiment = experiment
+ if not date:
+ timestamp = datetime.datetime.strftime(datetime.datetime.now(),
+ '%Y-%m-%d %H:%M:%S')
+ date, time = timestamp.split(' ')
+ self.date = date
+ self.time = time
+
+ @staticmethod
+ def FromExperiment(experiment, date=None, time=None, json_args=None):
+ benchmark_results = BenchmarkResults.FromExperiment(experiment,
+ for_json_report=True)
+ return JSONResultsReport(benchmark_results, date, time, experiment,
+ json_args)
+
+ def GetReportObjectIgnoringExperiment(self):
+ """Gets the JSON report object specifically for the output data.
+
+ Ignores any experiment-specific fields (e.g. board, machine checksum, ...).
+ """
+ benchmark_results = self.benchmark_results
+ label_names = benchmark_results.label_names
+ summary_field_defaults = self.summary_field_defaults
+ final_results = []
+ for test, test_results in benchmark_results.run_keyvals.iteritems():
+ for label_name, label_results in zip(label_names, test_results):
+ for iter_results in label_results:
+ passed = iter_results.get('retval') == 0
+ json_results = {
+ 'date': self.date,
+ 'time': self.time,
+ 'label': label_name,
+ 'test_name': test,
+ 'pass': passed,
+ }
+ final_results.append(json_results)
+
+ if not passed:
+ continue
+
+ # Get overall results.
+ summary_fields = summary_field_defaults.get(test)
+ if summary_fields is not None:
+ value = []
+ json_results['overall_result'] = value
+ for f in summary_fields:
+ v = iter_results.get(f)
+ if v is None:
+ continue
+ # New telemetry results format: sometimes we get a list of lists
+ # now.
+ v = _Unlist(_Unlist(v))
+ value.append((f, float(v)))
+
+ # Get detailed results.
+ detail_results = {}
+ json_results['detailed_results'] = detail_results
+ for k, v in iter_results.iteritems():
+ if k == 'retval' or k == 'PASS' or k == ['PASS'] or v == 'PASS':
+ continue
+
+ v = _Unlist(v)
+ if 'machine' in k:
+ json_results[k] = v
+ elif v is not None:
+ if isinstance(v, list):
+ detail_results[k] = [float(d) for d in v]
+ else:
+ detail_results[k] = float(v)
+ return final_results
+
+ def GetReportObject(self):
+ """Generate the JSON report, returning it as a python object."""
+ report_list = self.GetReportObjectIgnoringExperiment()
+ if self.experiment is not None:
+ self._AddExperimentSpecificFields(report_list)
+ return report_list
+
+ def _AddExperimentSpecificFields(self, report_list):
+ """Add experiment-specific data to the JSON report."""
+ board = self.experiment.labels[0].board
+ manager = self.experiment.machine_manager
+ for report in report_list:
+ label_name = report['label']
+ label = _GetElemByName(label_name, self.experiment.labels)
+
+ img_path = os.path.realpath(os.path.expanduser(label.chromeos_image))
+ ver, img = ParseChromeosImage(img_path)
+
+ report.update({
+ 'board': board,
+ 'chromeos_image': img,
+ 'chromeos_version': ver,
+ 'chrome_version': label.chrome_version,
+ 'compiler': label.compiler
+ })
+
+ if not report['pass']:
+ continue
+ if 'machine_checksum' not in report:
+ report['machine_checksum'] = manager.machine_checksum[label_name]
+ if 'machine_string' not in report:
+ report['machine_string'] = manager.machine_checksum_string[label_name]
+
+ def GetReport(self):
+ """Dump the results of self.GetReportObject() to a string as JSON."""
+ # This exists for consistency with the other GetReport methods.
+ # Specifically, they all return strings, so it's a bit awkward if the JSON
+ # results reporter returns an object.
+ return json.dumps(self.GetReportObject(), **self.json_args)