gitstats

   1 #!/usr/bin/python
   2 # Copyright (c) 2007 Heikki Hokkanen <hoxu@users.sf.net>
   3 # GPLv2
   4 import commands
   5 import datetime
   6 import glob
   7 import os
   8 import re
   9 import shutil
  10 import sys
  11 import time
  12
  13 GNUPLOT_COMMON = 'set terminal png transparent\nset size 0.5,0.5\n'
  14
  15 def getoutput(cmd, quiet = False):
  16         if not quiet:
  17                 print '>> %s' % cmd
  18         output = commands.getoutput(cmd)
  19         return output
  20
  21 def getkeyssortedbyvalues(dict):
  22         return map(lambda el : el[1], sorted(map(lambda el : (el[1], el[0]), dict.items())))
  23
  24 # TODO getdictkeyssortedbyvaluekey(dict, key) - eg. dict['author'] = { 'commits' : 512 } - ...key(dict, 'commits')
  25
  26 class DataCollector:
  27         """Manages data collection from a revision control repository."""
  28         def __init__(self):
  29                 self.stamp_created = time.time()
  30                 pass
  31
  32         ##
  33         # This should be the main function to extract data from the repository.
  34         def collect(self, dir):
  35                 self.dir = dir
  36
  37         ##
  38         # : get a dictionary of author
  39         def getAuthorInfo(self, author):
  40                 return None
  41
  42         def getActivityByDayOfWeek(self):
  43                 return {}
  44
  45         def getActivityByHourOfDay(self):
  46                 return {}
  47
  48         ##
  49         # Get a list of authors
  50         def getAuthors(self):
  51                 return []
  52
  53         def getFirstCommitDate(self):
  54                 return datetime.datetime.now()
  55
  56         def getLastCommitDate(self):
  57                 return datetime.datetime.now()
  58
  59         def getStampCreated(self):
  60                 return self.stamp_created
  61
  62         def getTags(self):
  63                 return []
  64
  65         def getTotalAuthors(self):
  66                 return -1
  67
  68         def getTotalCommits(self):
  69                 return -1
  70
  71         def getTotalFiles(self):
  72                 return -1
  73
  74         def getTotalLOC(self):
  75                 return -1
  76
  77 class GitDataCollector(DataCollector):
  78         def collect(self, dir):
  79                 DataCollector.collect(self, dir)
  80
  81                 self.total_authors = int(getoutput('git-log |git-shortlog -s |wc -l'))
  82                 self.total_commits = int(getoutput('git-rev-list HEAD |wc -l'))
  83                 self.total_files = int(getoutput('git-ls-files |wc -l'))
  84                 self.total_lines = int(getoutput('git-ls-files -z |xargs -0 cat |wc -l'))
  85
  86                 self.activity_by_hour_of_day = {} # hour -> commits
  87                 self.activity_by_day_of_week = {} # day -> commits
  88                 self.activity_by_month_of_year = {} # month [1-12] -> commits
  89                 self.activity_by_hour_of_week = {} # weekday -> hour -> commits
  90
  91                 self.authors = {} # name -> {commits, first_commit_stamp, last_commit_stamp}
  92
  93                 # author of the month
  94                 self.author_of_month = {} # month -> author -> commits
  95                 self.author_of_year = {} # year -> author -> commits
  96                 self.commits_by_month = {} # month -> commits
  97                 self.commits_by_year = {} # year -> commits
  98                 self.first_commit_stamp = 0
  99                 self.last_commit_stamp = 0
 100
 101                 # tags
 102                 self.tags = {}
 103                 lines = getoutput('git-show-ref --tags').split('\n')
 104                 for line in lines:
 105                         if len(line) == 0:
 106                                 continue
 107                         (hash, tag) = line.split(' ')
 108                         tag = tag.replace('refs/tags/', '')
 109                         output = getoutput('git-log "%s" --pretty=format:"%%at %%an" -n 1' % hash)
 110                         if len(output) > 0:
 111                                 parts = output.split(' ')
 112                                 stamp = 0
 113                                 try:
 114                                         stamp = int(parts[0])
 115                                 except ValueError:
 116                                         stamp = 0
 117                                 self.tags[tag] = { 'stamp': stamp, 'hash' : hash, 'date' : datetime.datetime.fromtimestamp(stamp).strftime('%Y-%m-%d') }
 118                         pass
 119
 120                 # Collect revision statistics
 121                 # Outputs "<stamp> <author>"
 122                 lines = getoutput('git-rev-list --pretty=format:"%at %an" HEAD |grep -v ^commit').split('\n')
 123                 for line in lines:
 124                         # linux-2.6 says "<unknown>" for one line O_o
 125                         parts = line.split(' ')
 126                         author = ''
 127                         try:
 128                                 stamp = int(parts[0])
 129                         except ValueError:
 130                                 stamp = 0
 131                         if len(parts) > 1:
 132                                 author = ' '.join(parts[1:])
 133                         date = datetime.datetime.fromtimestamp(float(stamp))
 134
 135                         # First and last commit stamp
 136                         if self.last_commit_stamp == 0:
 137                                 self.last_commit_stamp = stamp
 138                         self.first_commit_stamp = stamp
 139
 140                         # activity
 141                         # hour
 142                         hour = date.hour
 143                         if hour in self.activity_by_hour_of_day:
 144                                 self.activity_by_hour_of_day[hour] += 1
 145                         else:
 146                                 self.activity_by_hour_of_day[hour] = 1
 147
 148                         # day of week
 149                         day = date.weekday()
 150                         if day in self.activity_by_day_of_week:
 151                                 self.activity_by_day_of_week[day] += 1
 152                         else:
 153                                 self.activity_by_day_of_week[day] = 1
 154
 155                         # hour of week
 156                         if day not in self.activity_by_hour_of_week:
 157                                 self.activity_by_hour_of_week[day] = {}
 158                         if hour not in self.activity_by_hour_of_week[day]:
 159                                 self.activity_by_hour_of_week[day][hour] = 1
 160                         else:
 161                                 self.activity_by_hour_of_week[day][hour] += 1
 162
 163                         # month of year
 164                         month = date.month
 165                         if month in self.activity_by_month_of_year:
 166                                 self.activity_by_month_of_year[month] += 1
 167                         else:
 168                                 self.activity_by_month_of_year[month] = 1
 169
 170                         # author stats
 171                         if author not in self.authors:
 172                                 self.authors[author] = {}
 173                         # TODO commits
 174                         if 'last_commit_stamp' not in self.authors[author]:
 175                                 self.authors[author]['last_commit_stamp'] = stamp
 176                         self.authors[author]['first_commit_stamp'] = stamp
 177                         if 'commits' in self.authors[author]:
 178                                 self.authors[author]['commits'] += 1
 179                         else:
 180                                 self.authors[author]['commits'] = 1
 181
 182                         # author of the month/year
 183                         yymm = datetime.datetime.fromtimestamp(stamp).strftime('%Y-%m')
 184                         if yymm in self.author_of_month:
 185                                 if author in self.author_of_month[yymm]:
 186                                         self.author_of_month[yymm][author] += 1
 187                                 else:
 188                                         self.author_of_month[yymm][author] = 1
 189                         else:
 190                                 self.author_of_month[yymm] = {}
 191                                 self.author_of_month[yymm][author] = 1
 192                         if yymm in self.commits_by_month:
 193                                 self.commits_by_month[yymm] += 1
 194                         else:
 195                                 self.commits_by_month[yymm] = 1
 196
 197                         yy = datetime.datetime.fromtimestamp(stamp).year
 198                         if yy in self.author_of_year:
 199                                 if author in self.author_of_year[yy]:
 200                                         self.author_of_year[yy][author] += 1
 201                                 else:
 202                                         self.author_of_year[yy][author] = 1
 203                         else:
 204                                 self.author_of_year[yy] = {}
 205                                 self.author_of_year[yy][author] = 1
 206                         if yy in self.commits_by_year:
 207                                 self.commits_by_year[yy] += 1
 208                         else:
 209                                 self.commits_by_year[yy] = 1
 210
 211                 # outputs "<stamp> <files>" for each revision
 212                 self.files_by_stamp = {} # stamp -> files
 213                 lines = getoutput('git-rev-list --pretty=format:"%at %H" HEAD |grep -v ^commit |while read line; do set $line; echo "$1 $(git-ls-tree -r "$2" |wc -l)"; done').split('\n')
 214                 for line in lines:
 215                         parts = line.split(' ')
 216                         if len(parts) != 2:
 217                                 continue
 218                         (stamp, files) = parts[0:2]
 219                         self.files_by_stamp[int(stamp)] = int(files)
 220
 221                 # extensions
 222                 self.extensions = {} # extension -> files, lines
 223                 lines = getoutput('git-ls-files').split('\n')
 224                 for line in lines:
 225                         base = os.path.basename(line)
 226                         if base.find('.') == -1:
 227                                 ext = ''
 228                         else:
 229                                 ext = base[(base.rfind('.') + 1):]
 230
 231                         if ext not in self.extensions:
 232                                 self.extensions[ext] = {'files': 0, 'lines': 0}
 233
 234                         self.extensions[ext]['files'] += 1
 235                         try:
 236                                 # FIXME filenames with spaces or special characters are broken
 237                                 self.extensions[ext]['lines'] += int(getoutput('wc -l < %s' % line, quiet = True))
 238                         except:
 239                                 print 'Warning: Could not count lines for file "%s"' % line
 240
 241         def getActivityByDayOfWeek(self):
 242                 return self.activity_by_day_of_week
 243
 244         def getActivityByHourOfDay(self):
 245                 return self.activity_by_hour_of_day
 246
 247         def getAuthorInfo(self, author):
 248                 a = self.authors[author]
 249
 250                 commits = a['commits']
 251                 commits_frac = (100 * float(commits)) / self.getTotalCommits()
 252                 date_first = datetime.datetime.fromtimestamp(a['first_commit_stamp'])
 253                 date_last = datetime.datetime.fromtimestamp(a['last_commit_stamp'])
 254                 delta = date_last - date_first
 255
 256                 res = { 'commits': commits, 'commits_frac': commits_frac, 'date_first': date_first.strftime('%Y-%m-%d'), 'date_last': date_last.strftime('%Y-%m-%d'), 'timedelta' : delta }
 257                 return res
 258
 259         def getAuthors(self):
 260                 return self.authors.keys()
 261
 262         def getFirstCommitDate(self):
 263                 return datetime.datetime.fromtimestamp(self.first_commit_stamp)
 264
 265         def getLastCommitDate(self):
 266                 return datetime.datetime.fromtimestamp(self.last_commit_stamp)
 267
 268         def getTags(self):
 269                 lines = getoutput('git-show-ref --tags |cut -d/ -f3')
 270                 return lines.split('\n')
 271
 272         def getTagDate(self, tag):
 273                 return self.revToDate('tags/' + tag)
 274
 275         def getTotalAuthors(self):
 276                 return self.total_authors
 277
 278         def getTotalCommits(self):
 279                 return self.total_commits
 280
 281         def getTotalFiles(self):
 282                 return self.total_files
 283
 284         def getTotalLOC(self):
 285                 return self.total_lines
 286
 287         def revToDate(self, rev):
 288                 stamp = int(getoutput('git-log --pretty=format:%%at "%s" -n 1' % rev))
 289                 return datetime.datetime.fromtimestamp(stamp).strftime('%Y-%m-%d')
 290
 291 class ReportCreator:
 292         """Creates the actual report based on given data."""
 293         def __init__(self):
 294                 pass
 295
 296         def create(self, data, path):
 297                 self.data = data
 298                 self.path = path
 299
 300 def html_linkify(text):
 301         return text.lower().replace(' ', '_')
 302
 303 def html_header(level, text):
 304         name = html_linkify(text)
 305         return '\n<h%d><a href="#%s" name="%s">%s</a></h%d>\n\n' % (level, name, name, text, level)
 306
 307 class HTMLReportCreator(ReportCreator):
 308         def create(self, data, path):
 309                 ReportCreator.create(self, data, path)
 310
 311                 # TODO copy the CSS if it does not exist
 312                 if not os.path.exists(path + '/gitstats.css'):
 313                         #shutil.copyfile('')
 314                         pass
 315
 316                 f = open(path + "/index.html", 'w')
 317                 format = '%Y-%m-%d %H:%m:%S'
 318                 self.printHeader(f)
 319
 320                 f.write('<h1>GitStats</h1>')
 321
 322                 self.printNav(f)
 323
 324                 f.write('<dl>');
 325                 f.write('<dt>Generated</dt><dd>%s (in %d seconds)</dd>' % (datetime.datetime.now().strftime(format), time.time() - data.getStampCreated()));
 326                 f.write('<dt>Report Period</dt><dd>%s to %s</dd>' % (data.getFirstCommitDate().strftime(format), data.getLastCommitDate().strftime(format)))
 327                 f.write('<dt>Total Files</dt><dd>%s</dd>' % data.getTotalFiles())
 328                 f.write('<dt>Total Lines of Code</dt><dd>%s</dd>' % data.getTotalLOC())
 329                 f.write('<dt>Total Commits</dt><dd>%s</dd>' % data.getTotalCommits())
 330                 f.write('<dt>Authors</dt><dd>%s</dd>' % data.getTotalAuthors())
 331                 f.write('</dl>');
 332
 333                 f.write('</body>\n</html>');
 334                 f.close()
 335
 336                 ###
 337                 # Activity
 338                 f = open(path + '/activity.html', 'w')
 339                 self.printHeader(f)
 340                 f.write('<h1>Activity</h1>')
 341                 self.printNav(f)
 342
 343                 #f.write('<h2>Last 30 days</h2>')
 344
 345                 #f.write('<h2>Last 12 months</h2>')
 346
 347                 # Hour of Day
 348                 f.write(html_header(2, 'Hour of Day'))
 349                 hour_of_day = data.getActivityByHourOfDay()
 350                 f.write('<table><tr><th>Hour</th>')
 351                 for i in range(1, 25):
 352                         f.write('<th>%d</th>' % i)
 353                 f.write('</tr>\n<tr><th>Commits</th>')
 354                 fp = open(path + '/hour_of_day.dat', 'w')
 355                 for i in range(0, 24):
 356                         if i in hour_of_day:
 357                                 f.write('<td>%d</td>' % hour_of_day[i])
 358                                 fp.write('%d %d\n' % (i, hour_of_day[i]))
 359                         else:
 360                                 f.write('<td>0</td>')
 361                                 fp.write('%d 0\n' % i)
 362                 fp.close()
 363                 f.write('</tr>\n<tr><th>%</th>')
 364                 totalcommits = data.getTotalCommits()
 365                 for i in range(0, 24):
 366                         if i in hour_of_day:
 367                                 f.write('<td>%.2f</td>' % ((100.0 * hour_of_day[i]) / totalcommits))
 368                         else:
 369                                 f.write('<td>0.00</td>')
 370                 f.write('</tr></table>')
 371                 f.write('<img src="hour_of_day.png" alt="Hour of Day" />')
 372                 fg = open(path + '/hour_of_day.dat', 'w')
 373                 for i in range(0, 24):
 374                         if i in hour_of_day:
 375                                 fg.write('%d %d\n' % (i + 1, hour_of_day[i]))
 376                         else:
 377                                 fg.write('%d 0\n' % (i + 1))
 378                 fg.close()
 379
 380                 # Day of Week
 381                 f.write(html_header(2, 'Day of Week'))
 382                 day_of_week = data.getActivityByDayOfWeek()
 383                 f.write('<div class="vtable"><table>')
 384                 f.write('<tr><th>Day</th><th>Total (%)</th></tr>')
 385                 fp = open(path + '/day_of_week.dat', 'w')
 386                 for d in range(0, 7):
 387                         fp.write('%d %d\n' % (d + 1, day_of_week[d]))
 388                         f.write('<tr>')
 389                         f.write('<th>%d</th>' % (d + 1))
 390                         if d in day_of_week:
 391                                 f.write('<td>%d (%.2f%%)</td>' % (day_of_week[d], (100.0 * day_of_week[d]) / totalcommits))
 392                         else:
 393                                 f.write('<td>0</td>')
 394                         f.write('</tr>')
 395                 f.write('</table></div>')
 396                 f.write('<img src="day_of_week.png" alt="Day of Week" />')
 397                 fp.close()
 398
 399                 # Hour of Week
 400                 f.write(html_header(2, 'Hour of Week'))
 401                 f.write('<table>')
 402
 403                 f.write('<tr><th>Weekday</th>')
 404                 for hour in range(0, 24):
 405                         f.write('<th>%d</th>' % (hour + 1))
 406                 f.write('</tr>')
 407
 408                 for weekday in range(0, 7):
 409                         f.write('<tr><th>%d</th>' % (weekday + 1))
 410                         for hour in range(0, 24):
 411                                 try:
 412                                         commits = data.activity_by_hour_of_week[weekday][hour]
 413                                 except KeyError:
 414                                         commits = 0
 415                                 if commits != 0:
 416                                         f.write('<td>%d</td>' % commits)
 417                                 else:
 418                                         f.write('<td></td>')
 419                         f.write('</tr>')
 420
 421                 f.write('</table>')
 422
 423                 # Month of Year
 424                 f.write(html_header(2, 'Month of Year'))
 425                 f.write('<div class="vtable"><table>')
 426                 f.write('<tr><th>Month</th><th>Commits (%)</th></tr>')
 427                 fp = open (path + '/month_of_year.dat', 'w')
 428                 for mm in range(1, 13):
 429                         commits = 0
 430                         if mm in data.activity_by_month_of_year:
 431                                 commits = data.activity_by_month_of_year[mm]
 432                         f.write('<tr><td>%d</td><td>%d (%.2f %%)</td></tr>' % (mm, commits, (100.0 * commits) / data.getTotalCommits()))
 433                         fp.write('%d %d\n' % (mm, commits))
 434                 fp.close()
 435                 f.write('</table></div>')
 436                 f.write('<img src="month_of_year.png" alt="Month of Year" />')
 437
 438                 # Commits by year/month
 439                 f.write(html_header(2, 'Commits by year/month'))
 440                 f.write('<div class="vtable"><table><tr><th>Month</th><th>Commits</th></tr>')
 441                 for yymm in reversed(sorted(data.commits_by_month.keys())):
 442                         f.write('<tr><td>%s</td><td>%d</td></tr>' % (yymm, data.commits_by_month[yymm]))
 443                 f.write('</table></div>')
 444                 f.write('<img src="commits_by_year_month.png" alt="Commits by year/month" />')
 445                 fg = open(path + '/commits_by_year_month.dat', 'w')
 446                 for yymm in sorted(data.commits_by_month.keys()):
 447                         fg.write('%s %s\n' % (yymm, data.commits_by_month[yymm]))
 448                 fg.close()
 449
 450                 # Commits by year
 451                 f.write(html_header(2, 'Commits by Year'))
 452                 f.write('<div class="vtable"><table><tr><th>Year</th><th>Commits (% of all)</th></tr>')
 453                 for yy in reversed(sorted(data.commits_by_year.keys())):
 454                         f.write('<tr><td>%s</td><td>%d (%.2f%%)</td></tr>' % (yy, data.commits_by_year[yy], (100.0 * data.commits_by_year[yy]) / data.getTotalCommits()))
 455                 f.write('</table></div>')
 456                 f.write('<img src="commits_by_year.png" alt="Commits by Year" />')
 457                 fg = open(path + '/commits_by_year.dat', 'w')
 458                 for yy in sorted(data.commits_by_year.keys()):
 459                         fg.write('%d %d\n' % (yy, data.commits_by_year[yy]))
 460                 fg.close()
 461
 462                 f.write('</body></html>')
 463                 f.close()
 464
 465                 ###
 466                 # Authors
 467                 f = open(path + '/authors.html', 'w')
 468                 self.printHeader(f)
 469
 470                 f.write('<h1>Authors</h1>')
 471                 self.printNav(f)
 472
 473                 # Authors :: List of authors
 474                 f.write(html_header(2, 'List of Authors'))
 475
 476                 f.write('<table class="authors">')
 477                 f.write('<tr><th>Author</th><th>Commits (%)</th><th>First commit</th><th>Last commit</th><th>Age</th></tr>')
 478                 for author in sorted(data.getAuthors()):
 479                         info = data.getAuthorInfo(author)
 480                         f.write('<tr><td>%s</td><td>%d (%.2f%%)</td><td>%s</td><td>%s</td><td>%s</td></tr>' % (author, info['commits'], info['commits_frac'], info['date_first'], info['date_last'], info['timedelta']))
 481                 f.write('</table>')
 482
 483                 # Authors :: Author of Month
 484                 f.write(html_header(2, 'Author of Month'))
 485                 f.write('<table>')
 486                 f.write('<tr><th>Month</th><th>Author</th><th>Commits (%)</th></tr>')
 487                 for yymm in reversed(sorted(data.author_of_month.keys())):
 488                         authordict = data.author_of_month[yymm]
 489                         authors = getkeyssortedbyvalues(authordict)
 490                         authors.reverse()
 491                         commits = data.author_of_month[yymm][authors[0]]
 492                         f.write('<tr><td>%s</td><td>%s</td><td>%d (%.2f%% of %d)</td></tr>' % (yymm, authors[0], commits, (100 * commits) / data.commits_by_month[yymm], data.commits_by_month[yymm]))
 493
 494                 f.write('</table>')
 495
 496                 f.write(html_header(2, 'Author of Year'))
 497                 f.write('<table><tr><th>Year</th><th>Author</th><th>Commits (%)</th></tr>')
 498                 for yy in reversed(sorted(data.author_of_year.keys())):
 499                         authordict = data.author_of_year[yy]
 500                         authors = getkeyssortedbyvalues(authordict)
 501                         authors.reverse()
 502                         commits = data.author_of_year[yy][authors[0]]
 503                         f.write('<tr><td>%s</td><td>%s</td><td>%d (%.2f%% of %d)</td></tr>' % (yy, authors[0], commits, (100 * commits) / data.commits_by_year[yy], data.commits_by_year[yy]))
 504                 f.write('</table>')
 505
 506                 f.write('</body></html>')
 507                 f.close()
 508
 509                 ###
 510                 # Files
 511                 f = open(path + '/files.html', 'w')
 512                 self.printHeader(f)
 513                 f.write('<h1>Files</h1>')
 514                 self.printNav(f)
 515
 516                 f.write('<dl>\n')
 517                 f.write('<dt>Total files</dt><dd>%d</dd>' % data.getTotalFiles())
 518                 f.write('<dt>Total lines</dt><dd>%d</dd>' % data.getTotalLOC())
 519                 f.write('<dt>Average file size</dt><dd>%.2f bytes</dd>' % ((100.0 * data.getTotalLOC()) / data.getTotalFiles()))
 520                 f.write('</dl>\n')
 521
 522                 # Files :: File count by date
 523                 f.write(html_header(2, 'File count by date'))
 524
 525                 fg = open(path + '/files_by_date.dat', 'w')
 526                 for stamp in sorted(data.files_by_stamp.keys()):
 527                         fg.write('%s %d\n' % (datetime.datetime.fromtimestamp(stamp).strftime('%Y-%m-%d'), data.files_by_stamp[stamp]))
 528                 fg.close()
 529
 530                 f.write('<img src="files_by_date.png" alt="Files by Date" />')
 531
 532                 #f.write('<h2>Average file size by date</h2>')
 533
 534                 # Files :: Extensions
 535                 f.write(html_header(2, 'Extensions'))
 536                 f.write('<table><tr><th>Extension</th><th>Files (%)</th><th>Lines (%)</th><th>Lines/file</th></tr>')
 537                 for ext in sorted(data.extensions.keys()):
 538                         files = data.extensions[ext]['files']
 539                         lines = data.extensions[ext]['lines']
 540                         f.write('<tr><td>%s</td><td>%d (%.2f%%)</td><td>%d (%.2f%%)</td><td>%d</td></tr>' % (ext, files, (100.0 * files) / data.getTotalFiles(), lines, (100.0 * lines) / data.getTotalLOC(), lines / files))
 541                 f.write('</table>')
 542
 543                 f.write('</body></html>')
 544                 f.close()
 545
 546                 ###
 547                 # Lines
 548                 f = open(path + '/lines.html', 'w')
 549                 self.printHeader(f)
 550                 f.write('<h1>Lines</h1>')
 551                 self.printNav(f)
 552
 553                 f.write('<dl>\n')
 554                 f.write('<dt>Total lines</dt><dd>%d</dd>' % data.getTotalLOC())
 555                 f.write('</dl>\n')
 556
 557                 f.write('</body></html>')
 558                 f.close()
 559
 560                 ###
 561                 # tags.html
 562                 f = open(path + '/tags.html', 'w')
 563                 self.printHeader(f)
 564                 f.write('<h1>Tags</h1>')
 565                 self.printNav(f)
 566
 567                 f.write('<dl>')
 568                 f.write('<dt>Total tags</dt><dd>%d</dd>' % len(data.tags))
 569                 if len(data.tags) > 0:
 570                         f.write('<dt>Average commits per tag</dt><dd>%.2f</dd>' % (data.getTotalCommits() / len(data.tags)))
 571                 f.write('</dl>')
 572
 573                 f.write('<table>')
 574                 f.write('<tr><th>Name</th><th>Date</th></tr>')
 575                 # sort the tags by date desc
 576                 tags_sorted_by_date_desc = map(lambda el : el[1], reversed(sorted(map(lambda el : (el[1]['date'], el[0]), data.tags.items()))))
 577                 for tag in tags_sorted_by_date_desc:
 578                         f.write('<tr><td>%s</td><td>%s</td></tr>' % (tag, data.tags[tag]['date']))
 579                 f.write('</table>')
 580
 581                 f.write('</body></html>')
 582                 f.close()
 583
 584                 self.createGraphs(path)
 585         pass
 586
 587         def createGraphs(self, path):
 588                 print 'Generating graphs...'
 589
 590                 # hour of day
 591                 f = open(path + '/hour_of_day.plot', 'w')
 592                 f.write(GNUPLOT_COMMON)
 593                 f.write(
 594 """
 595 set output 'hour_of_day.png'
 596 unset key
 597 set xrange [0.5:24.5]
 598 set xtics 4
 599 set ylabel "Commits"
 600 plot 'hour_of_day.dat' using 1:2:(0.5) w boxes fs solid
 601 """)
 602                 f.close()
 603
 604                 # day of week
 605                 f = open(path + '/day_of_week.plot', 'w')
 606                 f.write(GNUPLOT_COMMON)
 607                 f.write(
 608 """
 609 set output 'day_of_week.png'
 610 unset key
 611 set xrange [0.5:7.5]
 612 set xtics 1
 613 set ylabel "Commits"
 614 plot 'day_of_week.dat' using 1:2:(0.5) w boxes fs solid
 615 """)
 616                 f.close()
 617
 618                 # Month of Year
 619                 f = open(path + '/month_of_year.plot', 'w')
 620                 f.write(GNUPLOT_COMMON)
 621                 f.write(
 622 """
 623 set output 'month_of_year.png'
 624 unset key
 625 set xrange [0.5:12.5]
 626 set xtics 1
 627 set ylabel "Commits"
 628 plot 'month_of_year.dat' using 1:2:(0.5) w boxes fs solid
 629 """)
 630                 f.close()
 631
 632                 # commits_by_year_month
 633                 f = open(path + '/commits_by_year_month.plot', 'w')
 634                 f.write(GNUPLOT_COMMON)
 635                 f.write(
 636 """
 637 set output 'commits_by_year_month.png'
 638 unset key
 639 set xdata time
 640 set timefmt "%Y-%m"
 641 set format x "%Y-%m"
 642 set xtics rotate by 90 15768000
 643 set ylabel "Commits"
 644 plot 'commits_by_year_month.dat' using 1:2:(0.5) w boxes fs solid
 645 """)
 646                 f.close()
 647
 648                 # commits_by_year
 649                 f = open(path + '/commits_by_year.plot', 'w')
 650                 f.write(GNUPLOT_COMMON)
 651                 f.write(
 652 """
 653 set output 'commits_by_year.png'
 654 unset key
 655 set xtics 1
 656 set ylabel "Commits"
 657 plot 'commits_by_year.dat' using 1:2:(0.5) w boxes fs solid
 658 """)
 659                 f.close()
 660
 661                 # Files by date
 662                 f = open(path + '/files_by_date.plot', 'w')
 663                 f.write(GNUPLOT_COMMON)
 664                 f.write(
 665 """
 666 set output 'files_by_date.png'
 667 unset key
 668 set xdata time
 669 set timefmt "%Y-%m-%d"
 670 set format x "%Y-%m-%d"
 671 set ylabel "Files"
 672 set xtics rotate by 90
 673 plot 'files_by_date.dat' using 1:2 smooth csplines
 674 """)
 675                 f.close()
 676
 677                 os.chdir(path)
 678                 files = glob.glob(path + '/*.plot')
 679                 for f in files:
 680                         print '>> gnuplot %s' % os.path.basename(f)
 681                         os.system('gnuplot %s' % f)
 682
 683         def printHeader(self, f):
 684                 f.write(
 685 """<?xml version="1.0" encoding="UTF-8"?>
 686 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 687 <html xmlns="http://www.w3.org/1999/xhtml">
 688 <head>
 689         <title>GitStats</title>
 690         <link rel="stylesheet" href="gitstats.css" type="text/css" />
 691         <meta name="generator" content="GitStats" />
 692 </head>
 693 <body>
 694 """)
 695
 696         def printNav(self, f):
 697                 f.write("""
 698 <div class="nav">
 699 <ul>
 700 <li><a href="index.html">General</a></li>
 701 <li><a href="activity.html">Activity</a></li>
 702 <li><a href="authors.html">Authors</a></li>
 703 <li><a href="files.html">Files</a></li>
 704 <li><a href="lines.html">Lines</a></li>
 705 <li><a href="tags.html">Tags</a></li>
 706 </ul>
 707 </div>
 708 """)
 709
 710
 711 usage = """
 712 Usage: gitstats [options] <gitpath> <outputpath>
 713
 714 Options:
 715 """
 716
 717 if len(sys.argv) <  3:
 718         print usage
 719         sys.exit(0)
 720
 721 gitpath = sys.argv[1]
 722 outputpath = os.path.abspath(sys.argv[2])
 723
 724 try:
 725         os.makedirs(outputpath)
 726 except OSError:
 727         pass
 728 if not os.path.isdir(outputpath):
 729         print 'FATAL: Output path is not a directory or does not exist'
 730         sys.exit(1)
 731
 732 print 'Git path: %s' % gitpath
 733 print 'Output path: %s' % outputpath
 734
 735 os.chdir(gitpath)
 736
 737 print 'Collecting data...'
 738 data = GitDataCollector()
 739 data.collect(gitpath)
 740
 741 print 'Generating report...'
 742 report = HTMLReportCreator()
 743 report.create(data, outputpath)
 744