git.notmuchmail.org Git - notmuch/blob - devel/nmbug/nmbug-status

   1 #!/usr/bin/python
   2 #
   3 # Copyright (c) 2011-2012 David Bremner <david@tethera.net>
   4 #
   5 # dependencies
   6 #       - python 2.6 for json
   7 #       - argparse; either python 2.7, or install separately
   8 #
   9 # This program is free software: you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation, either version 3 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see http://www.gnu.org/licenses/ .
  21
  22 """Generate HTML for one or more notmuch searches.
  23
  24 Messages matching each search are grouped by thread.  Each message
  25 that contains both a subject and message-id will have the displayed
  26 subject link to the Gmane view of the message.
  27 """
  28
  29 from __future__ import print_function
  30 from __future__ import unicode_literals
  31
  32 import codecs
  33 import collections
  34 import datetime
  35 import email.utils
  36 try:  # Python 3
  37     from urllib.parse import quote
  38 except ImportError:  # Python 2
  39     from urllib import quote
  40 import json
  41 import argparse
  42 import os
  43 import re
  44 import sys
  45 import subprocess
  46 import xml.sax.saxutils
  47
  48
  49 _ENCODING = 'UTF-8'
  50 _PAGES = {}
  51
  52
  53 if not hasattr(collections, 'OrderedDict'):  # Python 2.6 or earlier
  54     class _OrderedDict (dict):
  55         "Just enough of a stub to get through Page._get_threads"
  56         def __init__(self, *args, **kwargs):
  57             super(_OrderedDict, self).__init__(*args, **kwargs)
  58             self._keys = []  # record key order
  59
  60         def __setitem__(self, key, value):
  61             super(_OrderedDict, self).__setitem__(key, value)
  62             self._keys.append(key)
  63
  64         def values(self):
  65             for key in self._keys:
  66                 yield self[key]
  67
  68
  69     collections.OrderedDict = _OrderedDict
  70
  71
  72 class ConfigError (Exception):
  73     """Errors with config file usage
  74     """
  75     pass
  76
  77
  78 def read_config(path=None, encoding=None):
  79     "Read config from json file"
  80     if not encoding:
  81         encoding = _ENCODING
  82     if path:
  83         try:
  84             with open(path, 'rb') as f:
  85                 config_bytes = f.read()
  86         except IOError as e:
  87             raise ConfigError('Could not read config from {}'.format(path))
  88     else:
  89         nmbhome = os.getenv('NMBGIT', os.path.expanduser('~/.nmbug'))
  90         branch = 'config'
  91         filename = 'status-config.json'
  92
  93         # read only the first line from the pipe
  94         sha1_bytes = subprocess.Popen(
  95             ['git', '--git-dir', nmbhome, 'show-ref', '-s', '--heads', branch],
  96             stdout=subprocess.PIPE).stdout.readline()
  97         sha1 = sha1_bytes.decode(encoding).rstrip()
  98         if not sha1:
  99             raise ConfigError(
 100                 ("No local branch '{branch}' in {nmbgit}.  "
 101                  'Checkout a local {branch} branch or explicitly set --config.'
 102                 ).format(branch=branch, nmbgit=nmbhome))
 103
 104         p = subprocess.Popen(
 105             ['git', '--git-dir', nmbhome, 'cat-file', 'blob',
 106              '{}:{}'.format(sha1, filename)],
 107             stdout=subprocess.PIPE)
 108         config_bytes, err = p.communicate()
 109         status = p.wait()
 110         if status != 0:
 111             raise ConfigError(
 112                 ("Missing status-config.json in branch '{branch}' of"
 113                  '{nmbgit}.  Add the file or explicitly set --config.'
 114                 ).format(branch=branch, nmbgit=nmbhome))
 115
 116     config_json = config_bytes.decode(encoding)
 117     try:
 118         return json.loads(config_json)
 119     except ValueError as e:
 120         if not path:
 121             path = "{} in branch '{}' of {}".format(
 122                 filename, branch, nmbhome)
 123         raise ConfigError(
 124             'Could not parse JSON from the config file {}:\n{}'.format(
 125                 path, e))
 126
 127
 128 class Thread (list):
 129     def __init__(self):
 130         self.running_data = {}
 131
 132
 133 class Page (object):
 134     def __init__(self, header=None, footer=None):
 135         self.header = header
 136         self.footer = footer
 137
 138     def write(self, database, views, stream=None):
 139         if not stream:
 140             try:  # Python 3
 141                 byte_stream = sys.stdout.buffer
 142             except AttributeError:  # Python 2
 143                 byte_stream = sys.stdout
 144             stream = codecs.getwriter(encoding=_ENCODING)(stream=byte_stream)
 145         self._write_header(views=views, stream=stream)
 146         for view in views:
 147             self._write_view(database=database, view=view, stream=stream)
 148         self._write_footer(views=views, stream=stream)
 149
 150     def _write_header(self, views, stream):
 151         if self.header:
 152             stream.write(self.header)
 153
 154     def _write_footer(self, views, stream):
 155         if self.footer:
 156             stream.write(self.footer)
 157
 158     def _write_view(self, database, view, stream):
 159         if 'query-string' not in view:
 160             query = view['query']
 161             view['query-string'] = ' and '.join(query)
 162         q = notmuch.Query(database, view['query-string'])
 163         q.set_sort(notmuch.Query.SORT.OLDEST_FIRST)
 164         threads = self._get_threads(messages=q.search_messages())
 165         self._write_view_header(view=view, stream=stream)
 166         self._write_threads(threads=threads, stream=stream)
 167
 168     def _get_threads(self, messages):
 169         threads = collections.OrderedDict()
 170         for message in messages:
 171             thread_id = message.get_thread_id()
 172             if thread_id in threads:
 173                 thread = threads[thread_id]
 174             else:
 175                 thread = Thread()
 176                 threads[thread_id] = thread
 177             thread.running_data, display_data = self._message_display_data(
 178                 running_data=thread.running_data, message=message)
 179             thread.append(display_data)
 180         return list(threads.values())
 181
 182     def _write_view_header(self, view, stream):
 183         pass
 184
 185     def _write_threads(self, threads, stream):
 186         for thread in threads:
 187             for message_display_data in thread:
 188                 stream.write(
 189                     ('{date:10.10s} {from:20.20s} {subject:40.40s}\n'
 190                      '{message-id-term:>72}\n'
 191                      ).format(**message_display_data))
 192             if thread != threads[-1]:
 193                 stream.write('\n')
 194
 195     def _message_display_data(self, running_data, message):
 196         headers = ('thread-id', 'message-id', 'date', 'from', 'subject')
 197         data = {}
 198         for header in headers:
 199             if header == 'thread-id':
 200                 value = message.get_thread_id()
 201             elif header == 'message-id':
 202                 value = message.get_message_id()
 203                 data['message-id-term'] = 'id:"{0}"'.format(value)
 204             elif header == 'date':
 205                 value = str(datetime.datetime.utcfromtimestamp(
 206                     message.get_date()).date())
 207             else:
 208                 value = message.get_header(header)
 209             if header == 'from':
 210                 (value, addr) = email.utils.parseaddr(value)
 211                 if not value:
 212                     value = addr.split('@')[0]
 213             data[header] = value
 214         next_running_data = data.copy()
 215         for header, value in data.items():
 216             if header in ['message-id', 'subject']:
 217                 continue
 218             if value == running_data.get(header, None):
 219                 data[header] = ''
 220         return (next_running_data, data)
 221
 222
 223 class HtmlPage (Page):
 224     _slug_regexp = re.compile('\W+')
 225
 226     def _write_header(self, views, stream):
 227         super(HtmlPage, self)._write_header(views=views, stream=stream)
 228         stream.write('<ul>\n')
 229         for view in views:
 230             if 'id' not in view:
 231                 view['id'] = self._slug(view['title'])
 232             stream.write(
 233                 '<li><a href="#{id}">{title}</a></li>\n'.format(**view))
 234         stream.write('</ul>\n')
 235
 236     def _write_view_header(self, view, stream):
 237         stream.write('<h3 id="{id}">{title}</h3>\n'.format(**view))
 238         stream.write('<p>\n')
 239         if 'comment' in view:
 240             stream.write(view['comment'])
 241             stream.write('\n')
 242         for line in [
 243                 'The view is generated from the following query:',
 244                 '</p>',
 245                 '<p>',
 246                 '  <code>',
 247                 view['query-string'],
 248                 '  </code>',
 249                 '</p>',
 250                 ]:
 251             stream.write(line)
 252             stream.write('\n')
 253
 254     def _write_threads(self, threads, stream):
 255         if not threads:
 256             return
 257         stream.write('<table>\n')
 258         for thread in threads:
 259             stream.write('  <tbody>\n')
 260             for message_display_data in thread:
 261                 stream.write((
 262                     '    <tr class="message-first">\n'
 263                     '      <td>{date}</td>\n'
 264                     '      <td><code>{message-id-term}</code></td>\n'
 265                     '    </tr>\n'
 266                     '    <tr class="message-last">\n'
 267                     '      <td>{from}</td>\n'
 268                     '      <td>{subject}</td>\n'
 269                     '    </tr>\n'
 270                     ).format(**message_display_data))
 271             stream.write('  </tbody>\n')
 272             if thread != threads[-1]:
 273                 stream.write(
 274                     '  <tbody><tr><td colspan="2"><br /></td></tr></tbody>\n')
 275         stream.write('</table>\n')
 276
 277     def _message_display_data(self, *args, **kwargs):
 278         running_data, display_data = super(
 279             HtmlPage, self)._message_display_data(
 280                 *args, **kwargs)
 281         if 'subject' in display_data and 'message-id' in display_data:
 282             d = {
 283                 'message-id': quote(display_data['message-id']),
 284                 'subject': xml.sax.saxutils.escape(display_data['subject']),
 285                 }
 286             display_data['subject'] = (
 287                 '<a href="http://mid.gmane.org/{message-id}">{subject}</a>'
 288                 ).format(**d)
 289         for key in ['message-id', 'from']:
 290             if key in display_data:
 291                 display_data[key] = xml.sax.saxutils.escape(display_data[key])
 292         return (running_data, display_data)
 293
 294     def _slug(self, string):
 295         return self._slug_regexp.sub('-', string)
 296
 297 parser = argparse.ArgumentParser(description=__doc__)
 298 parser.add_argument('--text', help='output plain text format',
 299                     action='store_true')
 300 parser.add_argument('--config', help='load config from given file',
 301                     metavar='PATH')
 302 parser.add_argument('--list-views', help='list views',
 303                     action='store_true')
 304 parser.add_argument('--get-query', help='get query for view',
 305                     metavar='VIEW')
 306
 307 args = parser.parse_args()
 308
 309 try:
 310     config = read_config(path=args.config)
 311 except ConfigError as e:
 312     print(e)
 313     sys.exit(1)
 314
 315 header_template = config['meta'].get('header', '''<!DOCTYPE html>
 316 <html lang="en">
 317 <head>
 318   <meta http-equiv="Content-Type" content="text/html; charset={encoding}" />
 319   <title>{title}</title>
 320   <style media="screen" type="text/css">
 321     table {{
 322       border-spacing: 0;
 323     }}
 324     tr.message-first td {{
 325       padding-top: {inter_message_padding};
 326     }}
 327     tr.message-last td {{
 328       padding-bottom: {inter_message_padding};
 329     }}
 330     td {{
 331       padding-left: {border_radius};
 332       padding-right: {border_radius};
 333     }}
 334     tr:first-child td:first-child {{
 335       border-top-left-radius: {border_radius};
 336     }}
 337     tr:first-child td:last-child {{
 338       border-top-right-radius: {border_radius};
 339     }}
 340     tr:last-child td:first-child {{
 341       border-bottom-left-radius: {border_radius};
 342     }}
 343     tr:last-child td:last-child {{
 344       border-bottom-right-radius: {border_radius};
 345     }}
 346     tbody:nth-child(4n+1) tr td {{
 347       background-color: #ffd96e;
 348     }}
 349     tbody:nth-child(4n+3) tr td {{
 350       background-color: #bce;
 351     }}
 352     hr {{
 353       border: 0;
 354       height: 1px;
 355       color: #ccc;
 356       background-color: #ccc;
 357     }}
 358   </style>
 359 </head>
 360 <body>
 361 <h2>{title}</h2>
 362 {blurb}
 363 </p>
 364 <h3>Views</h3>
 365 ''')
 366
 367 footer_template = config['meta'].get('footer', '''
 368 <hr>
 369 <p>Generated: {datetime}
 370 </body>
 371 </html>
 372 ''')
 373
 374 now = datetime.datetime.utcnow()
 375 context = {
 376     'date': now,
 377     'datetime': now.strftime('%Y-%m-%d %H:%M:%SZ'),
 378     'title': config['meta']['title'],
 379     'blurb': config['meta']['blurb'],
 380     'encoding': _ENCODING,
 381     'inter_message_padding': '0.25em',
 382     'border_radius': '0.5em',
 383     }
 384
 385 _PAGES['text'] = Page()
 386 _PAGES['html'] = HtmlPage(
 387     header=header_template.format(**context),
 388     footer=footer_template.format(**context),
 389     )
 390
 391 if args.list_views:
 392     for view in config['views']:
 393         print(view['title'])
 394     sys.exit(0)
 395 elif args.get_query != None:
 396     for view in config['views']:
 397         if args.get_query == view['title']:
 398             print(' and '.join(view['query']))
 399     sys.exit(0)
 400 else:
 401     # only import notmuch if needed
 402     import notmuch
 403
 404 if args.text:
 405     page = _PAGES['text']
 406 else:
 407     page = _PAGES['html']
 408
 409 db = notmuch.Database(mode=notmuch.Database.MODE.READ_ONLY)
 410 page.write(database=db, views=config['views'])