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Commit 3cce2bcc authored by Chih-Hung Hsieh's avatar Chih-Hung Hsieh
Browse files

Separate html/csv output functions into html_writer.py 

* also suppress some pylint warnings

Test: warn.py --url=http://cs/android --separator='?l=' build.log > warnings.html
Test: warn.py --gencsv build.log > warnings.csv
Change-Id: I497dbb7496ca21470ba33db03eedb27f5e8f1e96
parent 5167fb0a

tools/warn/html_writer.py

0 → 100644
+673 −0
Original line number Diff line number Diff line 
# Lint as: python3

# Copyright (C) 2019 The Android Open Source Project

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.



"""Emit warning messages to html or csv files."""



# To emit html page of warning messages:

#   flags: --byproject, --url, --separator

# Old stuff for static html components:

#   html_script_style:  static html scripts and styles

#   htmlbig:

#   dump_stats, dump_html_prologue, dump_html_epilogue:

#   emit_buttons:

#   dump_fixed

#   sort_warnings:

#   emit_stats_by_project:

#   all_patterns,

#   findproject, classify_warning

#   dump_html

#

# New dynamic HTML page's static JavaScript data:

#   Some data are copied from Python to JavaScript, to generate HTML elements.

#   FlagPlatform           flags.platform

#   FlagURL                flags.url, used by 'android'

#   FlagSeparator          flags.separator, used by 'android'

#   SeverityColors:        list of colors for all severity levels

#   SeverityHeaders:       list of headers for all severity levels

#   SeverityColumnHeaders: list of column_headers for all severity levels

#   ProjectNames:          project_names, or project_list[*][0]

#   WarnPatternsSeverity:     warn_patterns[*]['severity']

#   WarnPatternsDescription:  warn_patterns[*]['description']

#   WarningMessages:          warning_messages

#   Warnings:                 warning_records

#   StatsHeader:           warning count table header row

#   StatsRows:             array of warning count table rows

#

# New dynamic HTML page's dynamic JavaScript data:

#

# New dynamic HTML related function to emit data:

#   escape_string, strip_escape_string, emit_warning_arrays

#   emit_js_data():



from __future__ import print_function

import cgi

import csv

import sys



# pylint:disable=relative-beyond-top-level

# pylint:disable=g-importing-member

from .severity import Severity





html_head_scripts = """\

  <script type="text/javascript">

  function expand(id) {

    var e = document.getElementById(id);

    var f = document.getElementById(id + "_mark");

    if (e.style.display == 'block') {

       e.style.display = 'none';

       f.innerHTML = '&#x2295';

    }

    else {

       e.style.display = 'block';

       f.innerHTML = '&#x2296';

    }

  };

  function expandCollapse(show) {

    for (var id = 1; ; id++) {

      var e = document.getElementById(id + "");

      var f = document.getElementById(id + "_mark");

      if (!e || !f) break;

      e.style.display = (show ? 'block' : 'none');

      f.innerHTML = (show ? '&#x2296' : '&#x2295');

    }

  };

  </script>

  <style type="text/css">

  th,td{border-collapse:collapse; border:1px solid black;}

  .button{color:blue;font-size:110%;font-weight:bolder;}

  .bt{color:black;background-color:transparent;border:none;outline:none;

      font-size:140%;font-weight:bolder;}

  .c0{background-color:#e0e0e0;}

  .c1{background-color:#d0d0d0;}

  .t1{border-collapse:collapse; width:100%; border:1px solid black;}

  </style>

  <script src="https://www.gstatic.com/charts/loader.js"></script>

"""





def make_writer(output_stream):



  def writer(text):

    return output_stream.write(text + '\n')



  return writer





def html_big(param):

  return '<font size="+2">' + param + '</font>'





def dump_html_prologue(title, writer, warn_patterns, project_names):

  writer('<html>\n<head>')

  writer('<title>' + title + '</title>')

  writer(html_head_scripts)

  emit_stats_by_project(writer, warn_patterns, project_names)

  writer('</head>\n<body>')

  writer(html_big(title))

  writer('<p>')





def dump_html_epilogue(writer):

  writer('</body>\n</head>\n</html>')





def sort_warnings(warn_patterns):

  for i in warn_patterns:

    i['members'] = sorted(set(i['members']))





def create_warnings(warn_patterns, project_names):

  """Creates warnings s.t.



  warnings[p][s] is as specified in above docs.



  Args:

    warn_patterns: list of warning patterns for specified platform

    project_names: list of project names



  Returns:

    2D warnings array where warnings[p][s] is # of warnings in project name p of

    severity level s

  """

  # pylint:disable=g-complex-comprehension

  warnings = {p: {s.value: 0 for s in Severity.levels} for p in project_names}

  for i in warn_patterns:

    s = i['severity'].value

    for p in i['projects']:

      warnings[p][s] += i['projects'][p]

  return warnings





def get_total_by_project(warnings, project_names):

  """Returns dict, project as key and # warnings for that project as value."""

  # pylint:disable=g-complex-comprehension

  return {

      p: sum(warnings[p][s.value] for s in Severity.levels)

      for p in project_names

  }





def get_total_by_severity(warnings, project_names):

  """Returns dict, severity as key and # warnings of that severity as value."""

  # pylint:disable=g-complex-comprehension

  return {

      s.value: sum(warnings[p][s.value] for p in project_names)

      for s in Severity.levels

  }





def emit_table_header(total_by_severity):

  """Returns list of HTML-formatted content for severity stats."""



  stats_header = ['Project']

  for s in Severity.levels:

    if total_by_severity[s.value]:

      stats_header.append(

          '<span style=\'background-color:{}\'>{}</span>'.format(

              s.color, s.column_header))

  stats_header.append('TOTAL')

  return stats_header





def emit_row_counts_per_project(warnings, total_by_project, total_by_severity,

                                project_names):

  """Returns total project warnings and row of stats for each project.



  Args:

    warnings: output of create_warnings(warn_patterns, project_names)

    total_by_project: output of get_total_by_project(project_names)

    total_by_severity: output of get_total_by_severity(project_names)

    project_names: list of project names



  Returns:

    total_all_projects, the total number of warnings over all projects

    stats_rows, a 2d list where each row is [Project Name, <severity counts>,

    total # warnings for this project]

  """



  total_all_projects = 0

  stats_rows = []

  for p in project_names:

    if total_by_project[p]:

      one_row = [p]

      for s in Severity.levels:

        if total_by_severity[s.value]:

          one_row.append(warnings[p][s.value])

      one_row.append(total_by_project[p])

      stats_rows.append(one_row)

      total_all_projects += total_by_project[p]

  return total_all_projects, stats_rows





def emit_row_counts_per_severity(total_by_severity, stats_header, stats_rows,

                                 total_all_projects, writer):

  """Emits stats_header and stats_rows as specified above.



  Args:

    total_by_severity: output of get_total_by_severity()

    stats_header: output of emit_table_header()

    stats_rows: output of emit_row_counts_per_project()

    total_all_projects: output of emit_row_counts_per_project()

    writer: writer returned by make_writer(output_stream)

  """



  total_all_severities = 0

  one_row = ['<b>TOTAL</b>']

  for s in Severity.levels:

    if total_by_severity[s.value]:

      one_row.append(total_by_severity[s.value])

      total_all_severities += total_by_severity[s.value]

  one_row.append(total_all_projects)

  stats_rows.append(one_row)

  writer('<script>')

  emit_const_string_array('StatsHeader', stats_header, writer)

  emit_const_object_array('StatsRows', stats_rows, writer)

  writer(draw_table_javascript)

  writer('</script>')





def emit_stats_by_project(writer, warn_patterns, project_names):

  """Dump a google chart table of warnings per project and severity."""



  warnings = create_warnings(warn_patterns, project_names)

  total_by_project = get_total_by_project(warnings, project_names)

  total_by_severity = get_total_by_severity(warnings, project_names)

  stats_header = emit_table_header(total_by_severity)

  total_all_projects, stats_rows = \

    emit_row_counts_per_project(warnings, total_by_project, total_by_severity, project_names)

  emit_row_counts_per_severity(total_by_severity, stats_header, stats_rows,

                               total_all_projects, writer)





def dump_stats(writer, warn_patterns):

  """Dump some stats about total number of warnings and such."""



  known = 0

  skipped = 0

  unknown = 0

  sort_warnings(warn_patterns)

  for i in warn_patterns:

    if i['severity'] == Severity.UNMATCHED:

      unknown += len(i['members'])

    elif i['severity'] == Severity.SKIP:

      skipped += len(i['members'])

    else:

      known += len(i['members'])

  writer('Number of classified warnings: <b>' + str(known) + '</b><br>')

  writer('Number of skipped warnings: <b>' + str(skipped) + '</b><br>')

  writer('Number of unclassified warnings: <b>' + str(unknown) + '</b><br>')

  total = unknown + known + skipped

  extra_msg = ''

  if total < 1000:

    extra_msg = ' (low count may indicate incremental build)'

  writer('Total number of warnings: <b>' + str(total) + '</b>' + extra_msg)





# New base table of warnings, [severity, warn_id, project, warning_message]

# Need buttons to show warnings in different grouping options.

# (1) Current, group by severity, id for each warning pattern

#     sort by severity, warn_id, warning_message

# (2) Current --byproject, group by severity,

#     id for each warning pattern + project name

#     sort by severity, warn_id, project, warning_message

# (3) New, group by project + severity,

#     id for each warning pattern

#     sort by project, severity, warn_id, warning_message

def emit_buttons(writer):

  writer('<button class="button" onclick="expandCollapse(1);">'

         'Expand all warnings</button>\n'

         '<button class="button" onclick="expandCollapse(0);">'

         'Collapse all warnings</button>\n'

         '<button class="button" onclick="groupBySeverity();">'

         'Group warnings by severity</button>\n'

         '<button class="button" onclick="groupByProject();">'

         'Group warnings by project</button><br>')





def all_patterns(category):

  patterns = ''

  for i in category['patterns']:

    patterns += i

    patterns += ' / '

  return patterns





def dump_fixed(writer, warn_patterns):

  """Show which warnings no longer occur."""

  anchor = 'fixed_warnings'

  mark = anchor + '_mark'

  writer('\n<br><p style="background-color:lightblue"><b>'

         '<button id="' + mark + '" '

         'class="bt" onclick="expand(\'' + anchor + '\');">'

         '&#x2295</button> Fixed warnings. '

         'No more occurrences. Please consider turning these into '

         'errors if possible, before they are reintroduced in to the build'

         ':</b></p>')

  writer('<blockquote>')

  fixed_patterns = []

  for i in warn_patterns:

    if not i['members']:

      fixed_patterns.append(i['description'] + ' (' + all_patterns(i) + ')')

  fixed_patterns = sorted(fixed_patterns)

  writer('<div id="' + anchor + '" style="display:none;"><table>')

  cur_row_class = 0

  for text in fixed_patterns:

    cur_row_class = 1 - cur_row_class

    # remove last '\n'

    t = text[:-1] if text[-1] == '\n' else text

    writer('<tr><td class="c' + str(cur_row_class) + '">' + t + '</td></tr>')

  writer('</table></div>')

  writer('</blockquote>')





def write_severity(csvwriter, sev, kind, warn_patterns):

  """Count warnings of given severity and write CSV entries to writer."""

  total = 0

  for pattern in warn_patterns:

    if pattern['severity'] == sev and pattern['members']:

      n = len(pattern['members'])

      total += n

      warning = kind + ': ' + (pattern['description'] or '?')

      csvwriter.writerow([n, '', warning])

      # print number of warnings for each project, ordered by project name

      projects = sorted(pattern['projects'].keys())

      for project in projects:

        csvwriter.writerow([pattern['projects'][project], project, warning])

  csvwriter.writerow([total, '', kind + ' warnings'])

  return total





def dump_csv(csvwriter, warn_patterns):

  """Dump number of warnings in CSV format to writer."""

  sort_warnings(warn_patterns)

  total = 0

  for s in Severity.levels:

    total += write_severity(csvwriter, s, s.column_header, warn_patterns)

  csvwriter.writerow([total, '', 'All warnings'])





# Return s with escaped backslash and quotation characters.

def escape_string(s):

  return s.replace('\\', '\\\\').replace('"', '\\"')





# Return s without trailing '\n' and escape the quotation characters.

def strip_escape_string(s):

  if not s:

    return s

  s = s[:-1] if s[-1] == '\n' else s

  return escape_string(s)





def emit_warning_array(name, writer, warn_patterns):

  writer('var warning_{} = ['.format(name))

  for w in warn_patterns:

    if name == 'severity':

      writer('{},'.format(w[name].value))

    else:

      writer('{},'.format(w[name]))

  writer('];')





def emit_warning_arrays(writer, warn_patterns):

  emit_warning_array('severity', writer, warn_patterns)

  writer('var warning_description = [')

  for w in warn_patterns:

    if w['members']:

      writer('"{}",'.format(escape_string(w['description'])))

    else:

      writer('"",')  # no such warning

  writer('];')





scripts_for_warning_groups = """

  function compareMessages(x1, x2) { // of the same warning type

    return (WarningMessages[x1[2]] <= WarningMessages[x2[2]]) ? -1 : 1;

  }

  function byMessageCount(x1, x2) {

    return x2[2] - x1[2];  // reversed order

  }

  function bySeverityMessageCount(x1, x2) {

    // orer by severity first

    if (x1[1] != x2[1])

      return  x1[1] - x2[1];

    return byMessageCount(x1, x2);

  }

  const ParseLinePattern = /^([^ :]+):(\\d+):(.+)/;

  function addURL(line) { // used by Android

    if (FlagURL == "") return line;

    if (FlagSeparator == "") {

      return line.replace(ParseLinePattern,

        "<a target='_blank' href='" + FlagURL + "/$1'>$1</a>:$2:$3");

    }

    return line.replace(ParseLinePattern,

      "<a target='_blank' href='" + FlagURL + "/$1" + FlagSeparator +

        "$2'>$1:$2</a>:$3");

  }

  function addURLToLine(line, link) { // used by Chrome

      let line_split = line.split(":");

      let path = line_split.slice(0,3).join(":");

      let msg = line_split.slice(3).join(":");

      let html_link = `<a target="_blank" href="${link}">${path}</a>${msg}`;

      return html_link;

  }

  function createArrayOfDictionaries(n) {

    var result = [];

    for (var i=0; i<n; i++) result.push({});

    return result;

  }

  function groupWarningsBySeverity() {

    // groups is an array of dictionaries,

    // each dictionary maps from warning type to array of warning messages.

    var groups = createArrayOfDictionaries(SeverityColors.length);

    for (var i=0; i<Warnings.length; i++) {

      var w = Warnings[i][0];

      var s = WarnPatternsSeverity[w];

      var k = w.toString();

      if (!(k in groups[s]))

        groups[s][k] = [];

      groups[s][k].push(Warnings[i]);

    }

    return groups;

  }

  function groupWarningsByProject() {

    var groups = createArrayOfDictionaries(ProjectNames.length);

    for (var i=0; i<Warnings.length; i++) {

      var w = Warnings[i][0];

      var p = Warnings[i][1];

      var k = w.toString();

      if (!(k in groups[p]))

        groups[p][k] = [];

      groups[p][k].push(Warnings[i]);

    }

    return groups;

  }

  var GlobalAnchor = 0;

  function createWarningSection(header, color, group) {

    var result = "";

    var groupKeys = [];

    var totalMessages = 0;

    for (var k in group) {

       totalMessages += group[k].length;

       groupKeys.push([k, WarnPatternsSeverity[parseInt(k)], group[k].length]);

    }

    groupKeys.sort(bySeverityMessageCount);

    for (var idx=0; idx<groupKeys.length; idx++) {

      var k = groupKeys[idx][0];

      var messages = group[k];

      var w = parseInt(k);

      var wcolor = SeverityColors[WarnPatternsSeverity[w]];

      var description = WarnPatternsDescription[w];

      if (description.length == 0)

          description = "???";

      GlobalAnchor += 1;

      result += "<table class='t1'><tr bgcolor='" + wcolor + "'><td>" +

                "<button class='bt' id='" + GlobalAnchor + "_mark" +

                "' onclick='expand(\\"" + GlobalAnchor + "\\");'>" +

                "&#x2295</button> " +

                description + " (" + messages.length + ")</td></tr></table>";

      result += "<div id='" + GlobalAnchor +

                "' style='display:none;'><table class='t1'>";

      var c = 0;

      messages.sort(compareMessages);

      if (FlagPlatform == "chrome") {

        for (var i=0; i<messages.length; i++) {

          result += "<tr><td class='c" + c + "'>" +

                    addURLToLine(WarningMessages[messages[i][2]], WarningLinks[messages[i][3]]) + "</td></tr>";

          c = 1 - c;

        }

      } else {

        for (var i=0; i<messages.length; i++) {

          result += "<tr><td class='c" + c + "'>" +

                    addURL(WarningMessages[messages[i][2]]) + "</td></tr>";

          c = 1 - c;

        }

      }

      result += "</table></div>";

    }

    if (result.length > 0) {

      return "<br><span style='background-color:" + color + "'><b>" +

             header + ": " + totalMessages +

             "</b></span><blockquote><table class='t1'>" +

             result + "</table></blockquote>";



    }

    return "";  // empty section

  }

  function generateSectionsBySeverity() {

    var result = "";

    var groups = groupWarningsBySeverity();

    for (s=0; s<SeverityColors.length; s++) {

      result += createWarningSection(SeverityHeaders[s], SeverityColors[s],

                                     groups[s]);

    }

    return result;

  }

  function generateSectionsByProject() {

    var result = "";

    var groups = groupWarningsByProject();

    for (i=0; i<groups.length; i++) {

      result += createWarningSection(ProjectNames[i], 'lightgrey', groups[i]);

    }

    return result;

  }

  function groupWarnings(generator) {

    GlobalAnchor = 0;

    var e = document.getElementById("warning_groups");

    e.innerHTML = generator();

  }

  function groupBySeverity() {

    groupWarnings(generateSectionsBySeverity);

  }

  function groupByProject() {

    groupWarnings(generateSectionsByProject);

  }

"""





# Emit a JavaScript const string

def emit_const_string(name, value, writer):

  writer('const ' + name + ' = "' + escape_string(value) + '";')





# Emit a JavaScript const integer array.

def emit_const_int_array(name, array, writer):

  writer('const ' + name + ' = [')

  for n in array:

    writer(str(n) + ',')

  writer('];')





# Emit a JavaScript const string array.

def emit_const_string_array(name, array, writer):

  writer('const ' + name + ' = [')

  for s in array:

    writer('"' + strip_escape_string(s) + '",')

  writer('];')





# Emit a JavaScript const string array for HTML.

def emit_const_html_string_array(name, array, writer):

  writer('const ' + name + ' = [')

  for s in array:

    # Not using html.escape yet, to work for both python 2 and 3,

    # until all users switch to python 3.

    # pylint:disable=deprecated-method

    writer('"' + cgi.escape(strip_escape_string(s)) + '",')

  writer('];')





# Emit a JavaScript const object array.

def emit_const_object_array(name, array, writer):

  writer('const ' + name + ' = [')

  for x in array:

    writer(str(x) + ',')

  writer('];')





def emit_js_data(writer, flags, warning_messages, warning_links,

                 warning_records, warn_patterns, project_names):

  """Dump dynamic HTML page's static JavaScript data."""

  emit_const_string('FlagPlatform', flags.platform, writer)

  emit_const_string('FlagURL', flags.url, writer)

  emit_const_string('FlagSeparator', flags.separator, writer)

  emit_const_string_array('SeverityColors', [s.color for s in Severity.levels],

                          writer)

  emit_const_string_array('SeverityHeaders',

                          [s.header for s in Severity.levels], writer)

  emit_const_string_array('SeverityColumnHeaders',

                          [s.column_header for s in Severity.levels], writer)

  emit_const_string_array('ProjectNames', project_names, writer)

  # pytype: disable=attribute-error

  emit_const_int_array('WarnPatternsSeverity',

                       [w['severity'].value for w in warn_patterns], writer)

  # pytype: enable=attribute-error

  emit_const_html_string_array('WarnPatternsDescription',

                               [w['description'] for w in warn_patterns],

                               writer)

  emit_const_html_string_array('WarningMessages', warning_messages, writer)

  emit_const_object_array('Warnings', warning_records, writer)

  if flags.platform == 'chrome':

    emit_const_html_string_array('WarningLinks', warning_links, writer)





draw_table_javascript = """

google.charts.load('current', {'packages':['table']});

google.charts.setOnLoadCallback(drawTable);

function drawTable() {

  var data = new google.visualization.DataTable();

  data.addColumn('string', StatsHeader[0]);

  for (var i=1; i<StatsHeader.length; i++) {

    data.addColumn('number', StatsHeader[i]);

  }

  data.addRows(StatsRows);

  for (var i=0; i<StatsRows.length; i++) {

    for (var j=0; j<StatsHeader.length; j++) {

      data.setProperty(i, j, 'style', 'border:1px solid black;');

    }

  }

  var table = new google.visualization.Table(

      document.getElementById('stats_table'));

  table.draw(data, {allowHtml: true, alternatingRowStyle: true});

}

"""





def dump_html(flags, output_stream, warning_messages, warning_links,

              warning_records, header_str, warn_patterns, project_names):

  """Dump the flags output to output_stream."""

  writer = make_writer(output_stream)

  dump_html_prologue('Warnings for ' + header_str, writer, warn_patterns,

                     project_names)

  dump_stats(writer, warn_patterns)

  writer('<br><div id="stats_table"></div><br>')

  writer('\n<script>')

  emit_js_data(writer, flags, warning_messages, warning_links, warning_records,

               warn_patterns, project_names)

  writer(scripts_for_warning_groups)

  writer('</script>')

  emit_buttons(writer)

  # Warning messages are grouped by severities or project names.

  writer('<br><div id="warning_groups"></div>')

  if flags.byproject:

    writer('<script>groupByProject();</script>')

  else:

    writer('<script>groupBySeverity();</script>')

  dump_fixed(writer, warn_patterns)

  dump_html_epilogue(writer)





def write_html(flags, project_names, warn_patterns, html_path, warning_messages,

               warning_links, warning_records, header_str):

  """Write warnings html file."""

  if html_path:

    with open(html_path, 'w') as f:

      dump_html(flags, f, warning_messages, warning_links, warning_records,

                header_str, warn_patterns, project_names)





def write_out_csv(flags, warn_patterns, warning_messages, warning_links,

                  warning_records, header_str, project_names):

  """Write warnings csv file."""

  if flags.csvpath:

    with open(flags.csvpath, 'w') as f:

      dump_csv(csv.writer(f, lineterminator='\n'), warn_patterns)



  if flags.gencsv:

    dump_csv(csv.writer(sys.stdout, lineterminator='\n'), warn_patterns)

  else:

    dump_html(flags, sys.stdout, warning_messages, warning_links,

              warning_records, header_str, warn_patterns, project_names)

tools/warn/java_warn_patterns.py

+1 −1
Original line number Diff line number Diff line
@@ -16,8 +16,8 @@ 
"""Warning patterns for Java compiler tools."""



# pylint:disable=relative-beyond-top-level

from .cpp_warn_patterns import compile_patterns

# pylint:disable=g-importing-member

from .cpp_warn_patterns import compile_patterns

from .severity import Severity

tools/warn/make_warn_patterns.py

+1 −1
Original line number Diff line number Diff line
@@ -16,8 +16,8 @@ 
"""Warning patterns for build make tools."""



# pylint:disable=relative-beyond-top-level

from .cpp_warn_patterns import compile_patterns

# pylint:disable=g-importing-member

from .cpp_warn_patterns import compile_patterns

from .severity import Severity



warn_patterns = [

tools/warn/other_warn_patterns.py

+1 −1
Original line number Diff line number Diff line
@@ -16,8 +16,8 @@ 
"""Warning patterns from other tools."""



# pylint:disable=relative-beyond-top-level

from .cpp_warn_patterns import compile_patterns

# pylint:disable=g-importing-member

from .cpp_warn_patterns import compile_patterns

from .severity import Severity

tools/warn/tidy_warn_patterns.py

+1 −1
Original line number Diff line number Diff line
@@ -16,8 +16,8 @@ 
"""Warning patterns for clang-tidy."""



# pylint:disable=relative-beyond-top-level

from .cpp_warn_patterns import compile_patterns

# pylint:disable=g-importing-member

from .cpp_warn_patterns import compile_patterns

from .severity import Severity