contrib/gitview/gitview

   1 #! /usr/bin/env python
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7
   8 """ gitview
   9 GUI browser for git repository
  10 This program is based on bzrk by Scott James Remnant <scott@ubuntu.com>
  11 """
  12 __copyright__ = "Copyright (C) 2006 Hewlett-Packard Development Company, L.P."
  13 __author__    = "Aneesh Kumar K.V <aneesh.kumar@hp.com>"
  14
  15
  16 import sys
  17 import os
  18 import gtk
  19 import pygtk
  20 import pango
  21 import re
  22 import time
  23 import gobject
  24 import cairo
  25 import math
  26 import string
  27
  28 try:
  29     import gtksourceview
  30     have_gtksourceview = True
  31 except ImportError:
  32     have_gtksourceview = False
  33     print "Running without gtksourceview module"
  34
  35 re_ident = re.compile('(author|committer) (?P<ident>.*) (?P<epoch>\d+) (?P<tz>[+-]\d{4})')
  36
  37 def list_to_string(args, skip):
  38         count = len(args)
  39         i = skip
  40         str_arg=" "
  41         while (i < count ):
  42                 str_arg = str_arg + args[i]
  43                 str_arg = str_arg + " "
  44                 i = i+1
  45
  46         return str_arg
  47
  48 def show_date(epoch, tz):
  49         secs = float(epoch)
  50         tzsecs = float(tz[1:3]) * 3600
  51         tzsecs += float(tz[3:5]) * 60
  52         if (tz[0] == "+"):
  53                 secs += tzsecs
  54         else:
  55                 secs -= tzsecs
  56
  57         return time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(secs))
  58
  59
  60 class CellRendererGraph(gtk.GenericCellRenderer):
  61         """Cell renderer for directed graph.
  62
  63         This module contains the implementation of a custom GtkCellRenderer that
  64         draws part of the directed graph based on the lines suggested by the code
  65         in graph.py.
  66
  67         Because we're shiny, we use Cairo to do this, and because we're naughty
  68         we cheat and draw over the bits of the TreeViewColumn that are supposed to
  69         just be for the background.
  70
  71         Properties:
  72         node              (column, colour, [ names ]) tuple to draw revision node,
  73         in_lines          (start, end, colour) tuple list to draw inward lines,
  74         out_lines         (start, end, colour) tuple list to draw outward lines.
  75         """
  76
  77         __gproperties__ = {
  78         "node":         ( gobject.TYPE_PYOBJECT, "node",
  79                           "revision node instruction",
  80                           gobject.PARAM_WRITABLE
  81                         ),
  82         "in-lines":     ( gobject.TYPE_PYOBJECT, "in-lines",
  83                           "instructions to draw lines into the cell",
  84                           gobject.PARAM_WRITABLE
  85                         ),
  86         "out-lines":    ( gobject.TYPE_PYOBJECT, "out-lines",
  87                           "instructions to draw lines out of the cell",
  88                           gobject.PARAM_WRITABLE
  89                         ),
  90         }
  91
  92         def do_set_property(self, property, value):
  93                 """Set properties from GObject properties."""
  94                 if property.name == "node":
  95                         self.node = value
  96                 elif property.name == "in-lines":
  97                         self.in_lines = value
  98                 elif property.name == "out-lines":
  99                         self.out_lines = value
 100                 else:
 101                         raise AttributeError, "no such property: '%s'" % property.name
 102
 103         def box_size(self, widget):
 104                 """Calculate box size based on widget's font.
 105
 106                 Cache this as it's probably expensive to get.  It ensures that we
 107                 draw the graph at least as large as the text.
 108                 """
 109                 try:
 110                         return self._box_size
 111                 except AttributeError:
 112                         pango_ctx = widget.get_pango_context()
 113                         font_desc = widget.get_style().font_desc
 114                         metrics = pango_ctx.get_metrics(font_desc)
 115
 116                         ascent = pango.PIXELS(metrics.get_ascent())
 117                         descent = pango.PIXELS(metrics.get_descent())
 118
 119                         self._box_size = ascent + descent + 6
 120                         return self._box_size
 121
 122         def set_colour(self, ctx, colour, bg, fg):
 123                 """Set the context source colour.
 124
 125                 Picks a distinct colour based on an internal wheel; the bg
 126                 parameter provides the value that should be assigned to the 'zero'
 127                 colours and the fg parameter provides the multiplier that should be
 128                 applied to the foreground colours.
 129                 """
 130                 colours = [
 131                     ( 1.0, 0.0, 0.0 ),
 132                     ( 1.0, 1.0, 0.0 ),
 133                     ( 0.0, 1.0, 0.0 ),
 134                     ( 0.0, 1.0, 1.0 ),
 135                     ( 0.0, 0.0, 1.0 ),
 136                     ( 1.0, 0.0, 1.0 ),
 137                     ]
 138
 139                 colour %= len(colours)
 140                 red   = (colours[colour][0] * fg) or bg
 141                 green = (colours[colour][1] * fg) or bg
 142                 blue  = (colours[colour][2] * fg) or bg
 143
 144                 ctx.set_source_rgb(red, green, blue)
 145
 146         def on_get_size(self, widget, cell_area):
 147                 """Return the size we need for this cell.
 148
 149                 Each cell is drawn individually and is only as wide as it needs
 150                 to be, we let the TreeViewColumn take care of making them all
 151                 line up.
 152                 """
 153                 box_size = self.box_size(widget)
 154
 155                 cols = self.node[0]
 156                 for start, end, colour in self.in_lines + self.out_lines:
 157                         cols = int(max(cols, start, end))
 158
 159                 (column, colour, names) = self.node
 160                 names_len = 0
 161                 if (len(names) != 0):
 162                         for item in names:
 163                                 names_len += len(item)
 164
 165                 width = box_size * (cols + 1 ) + names_len
 166                 height = box_size
 167
 168                 # FIXME I have no idea how to use cell_area properly
 169                 return (0, 0, width, height)
 170
 171         def on_render(self, window, widget, bg_area, cell_area, exp_area, flags):
 172                 """Render an individual cell.
 173
 174                 Draws the cell contents using cairo, taking care to clip what we
 175                 do to within the background area so we don't draw over other cells.
 176                 Note that we're a bit naughty there and should really be drawing
 177                 in the cell_area (or even the exposed area), but we explicitly don't
 178                 want any gutter.
 179
 180                 We try and be a little clever, if the line we need to draw is going
 181                 to cross other columns we actually draw it as in the .---' style
 182                 instead of a pure diagonal ... this reduces confusion by an
 183                 incredible amount.
 184                 """
 185                 ctx = window.cairo_create()
 186                 ctx.rectangle(bg_area.x, bg_area.y, bg_area.width, bg_area.height)
 187                 ctx.clip()
 188
 189                 box_size = self.box_size(widget)
 190
 191                 ctx.set_line_width(box_size / 8)
 192                 ctx.set_line_cap(cairo.LINE_CAP_SQUARE)
 193
 194                 # Draw lines into the cell
 195                 for start, end, colour in self.in_lines:
 196                         ctx.move_to(cell_area.x + box_size * start + box_size / 2,
 197                                         bg_area.y - bg_area.height / 2)
 198
 199                         if start - end > 1:
 200                                 ctx.line_to(cell_area.x + box_size * start, bg_area.y)
 201                                 ctx.line_to(cell_area.x + box_size * end + box_size, bg_area.y)
 202                         elif start - end < -1:
 203                                 ctx.line_to(cell_area.x + box_size * start + box_size,
 204                                                 bg_area.y)
 205                                 ctx.line_to(cell_area.x + box_size * end, bg_area.y)
 206
 207                         ctx.line_to(cell_area.x + box_size * end + box_size / 2,
 208                                         bg_area.y + bg_area.height / 2)
 209
 210                         self.set_colour(ctx, colour, 0.0, 0.65)
 211                         ctx.stroke()
 212
 213                 # Draw lines out of the cell
 214                 for start, end, colour in self.out_lines:
 215                         ctx.move_to(cell_area.x + box_size * start + box_size / 2,
 216                                         bg_area.y + bg_area.height / 2)
 217
 218                         if start - end > 1:
 219                                 ctx.line_to(cell_area.x + box_size * start,
 220                                                 bg_area.y + bg_area.height)
 221                                 ctx.line_to(cell_area.x + box_size * end + box_size,
 222                                                 bg_area.y + bg_area.height)
 223                         elif start - end < -1:
 224                                 ctx.line_to(cell_area.x + box_size * start + box_size,
 225                                                 bg_area.y + bg_area.height)
 226                                 ctx.line_to(cell_area.x + box_size * end,
 227                                                 bg_area.y + bg_area.height)
 228
 229                         ctx.line_to(cell_area.x + box_size * end + box_size / 2,
 230                                         bg_area.y + bg_area.height / 2 + bg_area.height)
 231
 232                         self.set_colour(ctx, colour, 0.0, 0.65)
 233                         ctx.stroke()
 234
 235                 # Draw the revision node in the right column
 236                 (column, colour, names) = self.node
 237                 ctx.arc(cell_area.x + box_size * column + box_size / 2,
 238                                 cell_area.y + cell_area.height / 2,
 239                                 box_size / 4, 0, 2 * math.pi)
 240
 241
 242                 self.set_colour(ctx, colour, 0.0, 0.5)
 243                 ctx.stroke_preserve()
 244
 245                 self.set_colour(ctx, colour, 0.5, 1.0)
 246                 ctx.fill_preserve()
 247
 248                 if (len(names) != 0):
 249                         name = " "
 250                         for item in names:
 251                                 name = name + item + " "
 252
 253                         ctx.set_font_size(13)
 254                         if (flags & 1):
 255                                 self.set_colour(ctx, colour, 0.5, 1.0)
 256                         else:
 257                                 self.set_colour(ctx, colour, 0.0, 0.5)
 258                         ctx.show_text(name)
 259
 260 class Commit:
 261         """ This represent a commit object obtained after parsing the git-rev-list
 262         output """
 263
 264         children_sha1 = {}
 265
 266         def __init__(self, commit_lines):
 267                 self.message            = ""
 268                 self.author             = ""
 269                 self.date               = ""
 270                 self.committer          = ""
 271                 self.commit_date        = ""
 272                 self.commit_sha1        = ""
 273                 self.parent_sha1        = [ ]
 274                 self.parse_commit(commit_lines)
 275
 276
 277         def parse_commit(self, commit_lines):
 278
 279                 # First line is the sha1 lines
 280                 line = string.strip(commit_lines[0])
 281                 sha1 = re.split(" ", line)
 282                 self.commit_sha1 = sha1[0]
 283                 self.parent_sha1 = sha1[1:]
 284
 285                 #build the child list
 286                 for parent_id in self.parent_sha1:
 287                         try:
 288                                 Commit.children_sha1[parent_id].append(self.commit_sha1)
 289                         except KeyError:
 290                                 Commit.children_sha1[parent_id] = [self.commit_sha1]
 291
 292                 # IF we don't have parent
 293                 if (len(self.parent_sha1) == 0):
 294                         self.parent_sha1 = [0]
 295
 296                 for line in commit_lines[1:]:
 297                         m = re.match("^ ", line)
 298                         if (m != None):
 299                                 # First line of the commit message used for short log
 300                                 if self.message == "":
 301                                         self.message = string.strip(line)
 302                                 continue
 303
 304                         m = re.match("tree", line)
 305                         if (m != None):
 306                                 continue
 307
 308                         m = re.match("parent", line)
 309                         if (m != None):
 310                                 continue
 311
 312                         m = re_ident.match(line)
 313                         if (m != None):
 314                                 date = show_date(m.group('epoch'), m.group('tz'))
 315                                 if m.group(1) == "author":
 316                                         self.author = m.group('ident')
 317                                         self.date = date
 318                                 elif m.group(1) == "committer":
 319                                         self.committer = m.group('ident')
 320                                         self.commit_date = date
 321
 322                                 continue
 323
 324         def get_message(self, with_diff=0):
 325                 if (with_diff == 1):
 326                         message = self.diff_tree()
 327                 else:
 328                         fp = os.popen("git cat-file commit " + self.commit_sha1)
 329                         message = fp.read()
 330                         fp.close()
 331
 332                 return message
 333
 334         def diff_tree(self):
 335                 fp = os.popen("git diff-tree --pretty --cc  -v -p --always " +  self.commit_sha1)
 336                 diff = fp.read()
 337                 fp.close()
 338                 return diff
 339
 340 class DiffWindow:
 341         """Diff window.
 342         This object represents and manages a single window containing the
 343         differences between two revisions on a branch.
 344         """
 345
 346         def __init__(self):
 347                 self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
 348                 self.window.set_border_width(0)
 349                 self.window.set_title("Git repository browser diff window")
 350
 351                 # Use two thirds of the screen by default
 352                 screen = self.window.get_screen()
 353                 monitor = screen.get_monitor_geometry(0)
 354                 width = int(monitor.width * 0.66)
 355                 height = int(monitor.height * 0.66)
 356                 self.window.set_default_size(width, height)
 357
 358                 self.construct()
 359
 360         def construct(self):
 361                 """Construct the window contents."""
 362                 vbox = gtk.VBox()
 363                 self.window.add(vbox)
 364                 vbox.show()
 365
 366                 menu_bar = gtk.MenuBar()
 367                 save_menu = gtk.ImageMenuItem(gtk.STOCK_SAVE)
 368                 save_menu.connect("activate", self.save_menu_response, "save")
 369                 save_menu.show()
 370                 menu_bar.append(save_menu)
 371                 vbox.pack_start(menu_bar, expand=False, fill=True)
 372                 menu_bar.show()
 373
 374                 scrollwin = gtk.ScrolledWindow()
 375                 scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 376                 scrollwin.set_shadow_type(gtk.SHADOW_IN)
 377                 vbox.pack_start(scrollwin, expand=True, fill=True)
 378                 scrollwin.show()
 379
 380                 if have_gtksourceview:
 381                         self.buffer = gtksourceview.SourceBuffer()
 382                         slm = gtksourceview.SourceLanguagesManager()
 383                         gsl = slm.get_language_from_mime_type("text/x-patch")
 384                         self.buffer.set_highlight(True)
 385                         self.buffer.set_language(gsl)
 386                         sourceview = gtksourceview.SourceView(self.buffer)
 387                 else:
 388                         self.buffer = gtk.TextBuffer()
 389                         sourceview = gtk.TextView(self.buffer)
 390
 391                 sourceview.set_editable(False)
 392                 sourceview.modify_font(pango.FontDescription("Monospace"))
 393                 scrollwin.add(sourceview)
 394                 sourceview.show()
 395
 396
 397         def set_diff(self, commit_sha1, parent_sha1, encoding):
 398                 """Set the differences showed by this window.
 399                 Compares the two trees and populates the window with the
 400                 differences.
 401                 """
 402                 # Diff with the first commit or the last commit shows nothing
 403                 if (commit_sha1 == 0 or parent_sha1 == 0 ):
 404                         return
 405
 406                 fp = os.popen("git diff-tree -p " + parent_sha1 + " " + commit_sha1)
 407                 self.buffer.set_text(unicode(fp.read(), encoding).encode('utf-8'))
 408                 fp.close()
 409                 self.window.show()
 410
 411         def save_menu_response(self, widget, string):
 412                 dialog = gtk.FileChooserDialog("Save..", None, gtk.FILE_CHOOSER_ACTION_SAVE,
 413                                 (gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
 414                                         gtk.STOCK_SAVE, gtk.RESPONSE_OK))
 415                 dialog.set_default_response(gtk.RESPONSE_OK)
 416                 response = dialog.run()
 417                 if response == gtk.RESPONSE_OK:
 418                         patch_buffer = self.buffer.get_text(self.buffer.get_start_iter(),
 419                                         self.buffer.get_end_iter())
 420                         fp = open(dialog.get_filename(), "w")
 421                         fp.write(patch_buffer)
 422                         fp.close()
 423                 dialog.destroy()
 424
 425 class GitView:
 426         """ This is the main class
 427         """
 428         version = "0.7"
 429
 430         def __init__(self, with_diff=0):
 431                 self.with_diff = with_diff
 432                 self.window =   gtk.Window(gtk.WINDOW_TOPLEVEL)
 433                 self.window.set_border_width(0)
 434                 self.window.set_title("Git repository browser")
 435
 436                 self.get_encoding()
 437                 self.get_bt_sha1()
 438
 439                 # Use three-quarters of the screen by default
 440                 screen = self.window.get_screen()
 441                 monitor = screen.get_monitor_geometry(0)
 442                 width = int(monitor.width * 0.75)
 443                 height = int(monitor.height * 0.75)
 444                 self.window.set_default_size(width, height)
 445
 446                 # FIXME AndyFitz!
 447                 icon = self.window.render_icon(gtk.STOCK_INDEX, gtk.ICON_SIZE_BUTTON)
 448                 self.window.set_icon(icon)
 449
 450                 self.accel_group = gtk.AccelGroup()
 451                 self.window.add_accel_group(self.accel_group)
 452
 453                 self.construct()
 454
 455         def get_bt_sha1(self):
 456                 """ Update the bt_sha1 dictionary with the
 457                 respective sha1 details """
 458
 459                 self.bt_sha1 = { }
 460                 ls_remote = re.compile('^(.{40})\trefs/([^^]+)(?:\\^(..))?$');
 461                 fp = os.popen('git ls-remote "${GIT_DIR-.git}"')
 462                 while 1:
 463                         line = string.strip(fp.readline())
 464                         if line == '':
 465                                 break
 466                         m = ls_remote.match(line)
 467                         if not m:
 468                                 continue
 469                         (sha1, name) = (m.group(1), m.group(2))
 470                         if not self.bt_sha1.has_key(sha1):
 471                                 self.bt_sha1[sha1] = []
 472                         self.bt_sha1[sha1].append(name)
 473                 fp.close()
 474
 475         def get_encoding(self):
 476                 fp = os.popen("git repo-config --get i18n.commitencoding")
 477                 self.encoding=string.strip(fp.readline())
 478                 fp.close()
 479                 if (self.encoding == ""):
 480                         self.encoding = "utf-8"
 481
 482
 483         def construct(self):
 484                 """Construct the window contents."""
 485                 vbox = gtk.VBox()
 486                 paned = gtk.VPaned()
 487                 paned.pack1(self.construct_top(), resize=False, shrink=True)
 488                 paned.pack2(self.construct_bottom(), resize=False, shrink=True)
 489                 menu_bar = gtk.MenuBar()
 490                 menu_bar.set_pack_direction(gtk.PACK_DIRECTION_RTL)
 491                 help_menu = gtk.MenuItem("Help")
 492                 menu = gtk.Menu()
 493                 about_menu = gtk.MenuItem("About")
 494                 menu.append(about_menu)
 495                 about_menu.connect("activate", self.about_menu_response, "about")
 496                 about_menu.show()
 497                 help_menu.set_submenu(menu)
 498                 help_menu.show()
 499                 menu_bar.append(help_menu)
 500                 menu_bar.show()
 501                 vbox.pack_start(menu_bar, expand=False, fill=True)
 502                 vbox.pack_start(paned, expand=True, fill=True)
 503                 self.window.add(vbox)
 504                 paned.show()
 505                 vbox.show()
 506
 507
 508         def construct_top(self):
 509                 """Construct the top-half of the window."""
 510                 vbox = gtk.VBox(spacing=6)
 511                 vbox.set_border_width(12)
 512                 vbox.show()
 513
 514
 515                 scrollwin = gtk.ScrolledWindow()
 516                 scrollwin.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
 517                 scrollwin.set_shadow_type(gtk.SHADOW_IN)
 518                 vbox.pack_start(scrollwin, expand=True, fill=True)
 519                 scrollwin.show()
 520
 521                 self.treeview = gtk.TreeView()
 522                 self.treeview.set_rules_hint(True)
 523                 self.treeview.set_search_column(4)
 524                 self.treeview.connect("cursor-changed", self._treeview_cursor_cb)
 525                 scrollwin.add(self.treeview)
 526                 self.treeview.show()
 527
 528                 cell = CellRendererGraph()
 529                 column = gtk.TreeViewColumn()
 530                 column.set_resizable(True)
 531                 column.pack_start(cell, expand=True)
 532                 column.add_attribute(cell, "node", 1)
 533                 column.add_attribute(cell, "in-lines", 2)
 534                 column.add_attribute(cell, "out-lines", 3)
 535                 self.treeview.append_column(column)
 536
 537                 cell = gtk.CellRendererText()
 538                 cell.set_property("width-chars", 65)
 539                 cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 540                 column = gtk.TreeViewColumn("Message")
 541                 column.set_resizable(True)
 542                 column.pack_start(cell, expand=True)
 543                 column.add_attribute(cell, "text", 4)
 544                 self.treeview.append_column(column)
 545
 546                 cell = gtk.CellRendererText()
 547                 cell.set_property("width-chars", 40)
 548                 cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 549                 column = gtk.TreeViewColumn("Author")
 550                 column.set_resizable(True)
 551                 column.pack_start(cell, expand=True)
 552                 column.add_attribute(cell, "text", 5)
 553                 self.treeview.append_column(column)
 554
 555                 cell = gtk.CellRendererText()
 556                 cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 557                 column = gtk.TreeViewColumn("Date")
 558                 column.set_resizable(True)
 559                 column.pack_start(cell, expand=True)
 560                 column.add_attribute(cell, "text", 6)
 561                 self.treeview.append_column(column)
 562
 563                 return vbox
 564
 565         def about_menu_response(self, widget, string):
 566                 dialog = gtk.AboutDialog()
 567                 dialog.set_name("Gitview")
 568                 dialog.set_version(GitView.version)
 569                 dialog.set_authors(["Aneesh Kumar K.V <aneesh.kumar@hp.com>"])
 570                 dialog.set_website("http://www.kernel.org/pub/software/scm/git/")
 571                 dialog.set_copyright("Use and distribute under the terms of the GNU General Public License")
 572                 dialog.set_wrap_license(True)
 573                 dialog.run()
 574                 dialog.destroy()
 575
 576
 577         def construct_bottom(self):
 578                 """Construct the bottom half of the window."""
 579                 vbox = gtk.VBox(False, spacing=6)
 580                 vbox.set_border_width(12)
 581                 (width, height) = self.window.get_size()
 582                 vbox.set_size_request(width, int(height / 2.5))
 583                 vbox.show()
 584
 585                 self.table = gtk.Table(rows=4, columns=4)
 586                 self.table.set_row_spacings(6)
 587                 self.table.set_col_spacings(6)
 588                 vbox.pack_start(self.table, expand=False, fill=True)
 589                 self.table.show()
 590
 591                 align = gtk.Alignment(0.0, 0.5)
 592                 label = gtk.Label()
 593                 label.set_markup("<b>Revision:</b>")
 594                 align.add(label)
 595                 self.table.attach(align, 0, 1, 0, 1, gtk.FILL, gtk.FILL)
 596                 label.show()
 597                 align.show()
 598
 599                 align = gtk.Alignment(0.0, 0.5)
 600                 self.revid_label = gtk.Label()
 601                 self.revid_label.set_selectable(True)
 602                 align.add(self.revid_label)
 603                 self.table.attach(align, 1, 2, 0, 1, gtk.EXPAND | gtk.FILL, gtk.FILL)
 604                 self.revid_label.show()
 605                 align.show()
 606
 607                 align = gtk.Alignment(0.0, 0.5)
 608                 label = gtk.Label()
 609                 label.set_markup("<b>Committer:</b>")
 610                 align.add(label)
 611                 self.table.attach(align, 0, 1, 1, 2, gtk.FILL, gtk.FILL)
 612                 label.show()
 613                 align.show()
 614
 615                 align = gtk.Alignment(0.0, 0.5)
 616                 self.committer_label = gtk.Label()
 617                 self.committer_label.set_selectable(True)
 618                 align.add(self.committer_label)
 619                 self.table.attach(align, 1, 2, 1, 2, gtk.EXPAND | gtk.FILL, gtk.FILL)
 620                 self.committer_label.show()
 621                 align.show()
 622
 623                 align = gtk.Alignment(0.0, 0.5)
 624                 label = gtk.Label()
 625                 label.set_markup("<b>Timestamp:</b>")
 626                 align.add(label)
 627                 self.table.attach(align, 0, 1, 2, 3, gtk.FILL, gtk.FILL)
 628                 label.show()
 629                 align.show()
 630
 631                 align = gtk.Alignment(0.0, 0.5)
 632                 self.timestamp_label = gtk.Label()
 633                 self.timestamp_label.set_selectable(True)
 634                 align.add(self.timestamp_label)
 635                 self.table.attach(align, 1, 2, 2, 3, gtk.EXPAND | gtk.FILL, gtk.FILL)
 636                 self.timestamp_label.show()
 637                 align.show()
 638
 639                 align = gtk.Alignment(0.0, 0.5)
 640                 label = gtk.Label()
 641                 label.set_markup("<b>Parents:</b>")
 642                 align.add(label)
 643                 self.table.attach(align, 0, 1, 3, 4, gtk.FILL, gtk.FILL)
 644                 label.show()
 645                 align.show()
 646                 self.parents_widgets = []
 647
 648                 align = gtk.Alignment(0.0, 0.5)
 649                 label = gtk.Label()
 650                 label.set_markup("<b>Children:</b>")
 651                 align.add(label)
 652                 self.table.attach(align, 2, 3, 3, 4, gtk.FILL, gtk.FILL)
 653                 label.show()
 654                 align.show()
 655                 self.children_widgets = []
 656
 657                 scrollwin = gtk.ScrolledWindow()
 658                 scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 659                 scrollwin.set_shadow_type(gtk.SHADOW_IN)
 660                 vbox.pack_start(scrollwin, expand=True, fill=True)
 661                 scrollwin.show()
 662
 663                 if have_gtksourceview:
 664                         self.message_buffer = gtksourceview.SourceBuffer()
 665                         slm = gtksourceview.SourceLanguagesManager()
 666                         gsl = slm.get_language_from_mime_type("text/x-patch")
 667                         self.message_buffer.set_highlight(True)
 668                         self.message_buffer.set_language(gsl)
 669                         sourceview = gtksourceview.SourceView(self.message_buffer)
 670                 else:
 671                         self.message_buffer = gtk.TextBuffer()
 672                         sourceview = gtk.TextView(self.message_buffer)
 673
 674                 sourceview.set_editable(False)
 675                 sourceview.modify_font(pango.FontDescription("Monospace"))
 676                 scrollwin.add(sourceview)
 677                 sourceview.show()
 678
 679                 return vbox
 680
 681         def _treeview_cursor_cb(self, *args):
 682                 """Callback for when the treeview cursor changes."""
 683                 (path, col) = self.treeview.get_cursor()
 684                 commit = self.model[path][0]
 685
 686                 if commit.committer is not None:
 687                         committer = commit.committer
 688                         timestamp = commit.commit_date
 689                         message   =  commit.get_message(self.with_diff)
 690                         revid_label = commit.commit_sha1
 691                 else:
 692                         committer = ""
 693                         timestamp = ""
 694                         message = ""
 695                         revid_label = ""
 696
 697                 self.revid_label.set_text(revid_label)
 698                 self.committer_label.set_text(committer)
 699                 self.timestamp_label.set_text(timestamp)
 700                 self.message_buffer.set_text(unicode(message, self.encoding).encode('utf-8'))
 701
 702                 for widget in self.parents_widgets:
 703                         self.table.remove(widget)
 704
 705                 self.parents_widgets = []
 706                 self.table.resize(4 + len(commit.parent_sha1) - 1, 4)
 707                 for idx, parent_id in enumerate(commit.parent_sha1):
 708                         self.table.set_row_spacing(idx + 3, 0)
 709
 710                         align = gtk.Alignment(0.0, 0.0)
 711                         self.parents_widgets.append(align)
 712                         self.table.attach(align, 1, 2, idx + 3, idx + 4,
 713                                         gtk.EXPAND | gtk.FILL, gtk.FILL)
 714                         align.show()
 715
 716                         hbox = gtk.HBox(False, 0)
 717                         align.add(hbox)
 718                         hbox.show()
 719
 720                         label = gtk.Label(parent_id)
 721                         label.set_selectable(True)
 722                         hbox.pack_start(label, expand=False, fill=True)
 723                         label.show()
 724
 725                         image = gtk.Image()
 726                         image.set_from_stock(gtk.STOCK_JUMP_TO, gtk.ICON_SIZE_MENU)
 727                         image.show()
 728
 729                         button = gtk.Button()
 730                         button.add(image)
 731                         button.set_relief(gtk.RELIEF_NONE)
 732                         button.connect("clicked", self._go_clicked_cb, parent_id)
 733                         hbox.pack_start(button, expand=False, fill=True)
 734                         button.show()
 735
 736                         image = gtk.Image()
 737                         image.set_from_stock(gtk.STOCK_FIND, gtk.ICON_SIZE_MENU)
 738                         image.show()
 739
 740                         button = gtk.Button()
 741                         button.add(image)
 742                         button.set_relief(gtk.RELIEF_NONE)
 743                         button.set_sensitive(True)
 744                         button.connect("clicked", self._show_clicked_cb,
 745                                         commit.commit_sha1, parent_id, self.encoding)
 746                         hbox.pack_start(button, expand=False, fill=True)
 747                         button.show()
 748
 749                 # Populate with child details
 750                 for widget in self.children_widgets:
 751                         self.table.remove(widget)
 752
 753                 self.children_widgets = []
 754                 try:
 755                         child_sha1 = Commit.children_sha1[commit.commit_sha1]
 756                 except KeyError:
 757                         # We don't have child
 758                         child_sha1 = [ 0 ]
 759
 760                 if ( len(child_sha1) > len(commit.parent_sha1)):
 761                         self.table.resize(4 + len(child_sha1) - 1, 4)
 762
 763                 for idx, child_id in enumerate(child_sha1):
 764                         self.table.set_row_spacing(idx + 3, 0)
 765
 766                         align = gtk.Alignment(0.0, 0.0)
 767                         self.children_widgets.append(align)
 768                         self.table.attach(align, 3, 4, idx + 3, idx + 4,
 769                                         gtk.EXPAND | gtk.FILL, gtk.FILL)
 770                         align.show()
 771
 772                         hbox = gtk.HBox(False, 0)
 773                         align.add(hbox)
 774                         hbox.show()
 775
 776                         label = gtk.Label(child_id)
 777                         label.set_selectable(True)
 778                         hbox.pack_start(label, expand=False, fill=True)
 779                         label.show()
 780
 781                         image = gtk.Image()
 782                         image.set_from_stock(gtk.STOCK_JUMP_TO, gtk.ICON_SIZE_MENU)
 783                         image.show()
 784
 785                         button = gtk.Button()
 786                         button.add(image)
 787                         button.set_relief(gtk.RELIEF_NONE)
 788                         button.connect("clicked", self._go_clicked_cb, child_id)
 789                         hbox.pack_start(button, expand=False, fill=True)
 790                         button.show()
 791
 792                         image = gtk.Image()
 793                         image.set_from_stock(gtk.STOCK_FIND, gtk.ICON_SIZE_MENU)
 794                         image.show()
 795
 796                         button = gtk.Button()
 797                         button.add(image)
 798                         button.set_relief(gtk.RELIEF_NONE)
 799                         button.set_sensitive(True)
 800                         button.connect("clicked", self._show_clicked_cb,
 801                                         child_id, commit.commit_sha1)
 802                         hbox.pack_start(button, expand=False, fill=True)
 803                         button.show()
 804
 805         def _destroy_cb(self, widget):
 806                 """Callback for when a window we manage is destroyed."""
 807                 self.quit()
 808
 809
 810         def quit(self):
 811                 """Stop the GTK+ main loop."""
 812                 gtk.main_quit()
 813
 814         def run(self, args):
 815                 self.set_branch(args)
 816                 self.window.connect("destroy", self._destroy_cb)
 817                 self.window.show()
 818                 gtk.main()
 819
 820         def set_branch(self, args):
 821                 """Fill in different windows with info from the reposiroty"""
 822                 fp = os.popen("git rev-parse --sq --default HEAD " + list_to_string(args, 1))
 823                 git_rev_list_cmd = fp.read()
 824                 fp.close()
 825                 fp = os.popen("git rev-list  --header --topo-order --parents " + git_rev_list_cmd)
 826                 self.update_window(fp)
 827
 828         def update_window(self, fp):
 829                 commit_lines = []
 830
 831                 self.model = gtk.ListStore(gobject.TYPE_PYOBJECT, gobject.TYPE_PYOBJECT,
 832                                 gobject.TYPE_PYOBJECT, gobject.TYPE_PYOBJECT, str, str, str)
 833
 834                 # used for cursor positioning
 835                 self.index = {}
 836
 837                 self.colours = {}
 838                 self.nodepos = {}
 839                 self.incomplete_line = {}
 840                 self.commits = []
 841
 842                 index = 0
 843                 last_colour = 0
 844                 last_nodepos = -1
 845                 out_line = []
 846                 input_line = fp.readline()
 847                 while (input_line != ""):
 848                         # The commit header ends with '\0'
 849                         # This NULL is immediately followed by the sha1 of the
 850                         # next commit
 851                         if (input_line[0] != '\0'):
 852                                 commit_lines.append(input_line)
 853                                 input_line = fp.readline()
 854                                 continue;
 855
 856                         commit = Commit(commit_lines)
 857                         if (commit != None ):
 858                                 self.commits.append(commit)
 859
 860                         # Skip the '\0
 861                         commit_lines = []
 862                         commit_lines.append(input_line[1:])
 863                         input_line = fp.readline()
 864
 865                 fp.close()
 866
 867                 for commit in self.commits:
 868                         (out_line, last_colour, last_nodepos) = self.draw_graph(commit,
 869                                                                                 index, out_line,
 870                                                                                 last_colour,
 871                                                                                 last_nodepos)
 872                         self.index[commit.commit_sha1] = index
 873                         index += 1
 874
 875                 self.treeview.set_model(self.model)
 876                 self.treeview.show()
 877
 878         def draw_graph(self, commit, index, out_line, last_colour, last_nodepos):
 879                 in_line=[]
 880
 881                 #   |   -> outline
 882                 #   X
 883                 #   |\  <- inline
 884
 885                 # Reset nodepostion
 886                 if (last_nodepos > 5):
 887                         last_nodepos = -1
 888
 889                 # Add the incomplete lines of the last cell in this
 890                 try:
 891                         colour = self.colours[commit.commit_sha1]
 892                 except KeyError:
 893                         self.colours[commit.commit_sha1] = last_colour+1
 894                         last_colour = self.colours[commit.commit_sha1]
 895                         colour =   self.colours[commit.commit_sha1]
 896
 897                 try:
 898                         node_pos = self.nodepos[commit.commit_sha1]
 899                 except KeyError:
 900                         self.nodepos[commit.commit_sha1] = last_nodepos+1
 901                         last_nodepos = self.nodepos[commit.commit_sha1]
 902                         node_pos =  self.nodepos[commit.commit_sha1]
 903
 904                 #The first parent always continue on the same line
 905                 try:
 906                         # check we alreay have the value
 907                         tmp_node_pos = self.nodepos[commit.parent_sha1[0]]
 908                 except KeyError:
 909                         self.colours[commit.parent_sha1[0]] = colour
 910                         self.nodepos[commit.parent_sha1[0]] = node_pos
 911
 912                 for sha1 in self.incomplete_line.keys():
 913                         if (sha1 != commit.commit_sha1):
 914                                 self.draw_incomplete_line(sha1, node_pos,
 915                                                 out_line, in_line, index)
 916                         else:
 917                                 del self.incomplete_line[sha1]
 918
 919
 920                 for parent_id in commit.parent_sha1:
 921                         try:
 922                                 tmp_node_pos = self.nodepos[parent_id]
 923                         except KeyError:
 924                                 self.colours[parent_id] = last_colour+1
 925                                 last_colour = self.colours[parent_id]
 926                                 self.nodepos[parent_id] = last_nodepos+1
 927                                 last_nodepos = self.nodepos[parent_id]
 928
 929                         in_line.append((node_pos, self.nodepos[parent_id],
 930                                                 self.colours[parent_id]))
 931                         self.add_incomplete_line(parent_id)
 932
 933                 try:
 934                         branch_tag = self.bt_sha1[commit.commit_sha1]
 935                 except KeyError:
 936                         branch_tag = [ ]
 937
 938
 939                 node = (node_pos, colour, branch_tag)
 940
 941                 self.model.append([commit, node, out_line, in_line,
 942                                 commit.message, commit.author, commit.date])
 943
 944                 return (in_line, last_colour, last_nodepos)
 945
 946         def add_incomplete_line(self, sha1):
 947                 try:
 948                         self.incomplete_line[sha1].append(self.nodepos[sha1])
 949                 except KeyError:
 950                         self.incomplete_line[sha1] = [self.nodepos[sha1]]
 951
 952         def draw_incomplete_line(self, sha1, node_pos, out_line, in_line, index):
 953                 for idx, pos in enumerate(self.incomplete_line[sha1]):
 954                         if(pos == node_pos):
 955                                 #remove the straight line and add a slash
 956                                 if ((pos, pos, self.colours[sha1]) in out_line):
 957                                         out_line.remove((pos, pos, self.colours[sha1]))
 958                                 out_line.append((pos, pos+0.5, self.colours[sha1]))
 959                                 self.incomplete_line[sha1][idx] = pos = pos+0.5
 960                         try:
 961                                 next_commit = self.commits[index+1]
 962                                 if (next_commit.commit_sha1 == sha1 and pos != int(pos)):
 963                                 # join the line back to the node point
 964                                 # This need to be done only if we modified it
 965                                         in_line.append((pos, pos-0.5, self.colours[sha1]))
 966                                         continue;
 967                         except IndexError:
 968                                 pass
 969                         in_line.append((pos, pos, self.colours[sha1]))
 970
 971
 972         def _go_clicked_cb(self, widget, revid):
 973                 """Callback for when the go button for a parent is clicked."""
 974                 try:
 975                         self.treeview.set_cursor(self.index[revid])
 976                 except KeyError:
 977                         print "Revision %s not present in the list" % revid
 978                         # revid == 0 is the parent of the first commit
 979                         if (revid != 0 ):
 980                                 print "Try running gitview without any options"
 981
 982                 self.treeview.grab_focus()
 983
 984         def _show_clicked_cb(self, widget,  commit_sha1, parent_sha1, encoding):
 985                 """Callback for when the show button for a parent is clicked."""
 986                 window = DiffWindow()
 987                 window.set_diff(commit_sha1, parent_sha1, encoding)
 988                 self.treeview.grab_focus()
 989
 990 if __name__ == "__main__":
 991         without_diff = 0
 992
 993         if (len(sys.argv) > 1 ):
 994                 if (sys.argv[1] == "--without-diff"):
 995                         without_diff = 1
 996
 997         view = GitView( without_diff != 1)
 998         view.run(sys.argv[without_diff:])
 999
1000