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 = "0.8"
 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                 self.accel_group.connect_group(0xffc2, 0, gtk.ACCEL_LOCKED, self.refresh);
 453
 454                 self.window.add(self.construct())
 455
 456         def refresh(self, widget, event=None, *arguments, **keywords):
 457                 self.get_encoding()
 458                 self.get_bt_sha1()
 459                 Commit.children_sha1 = {}
 460                 self.set_branch(sys.argv[without_diff:])
 461                 self.window.show()
 462                 return True
 463
 464         def get_bt_sha1(self):
 465                 """ Update the bt_sha1 dictionary with the
 466                 respective sha1 details """
 467
 468                 self.bt_sha1 = { }
 469                 ls_remote = re.compile('^(.{40})\trefs/([^^]+)(?:\\^(..))?$');
 470                 fp = os.popen('git ls-remote "${GIT_DIR-.git}"')
 471                 while 1:
 472                         line = string.strip(fp.readline())
 473                         if line == '':
 474                                 break
 475                         m = ls_remote.match(line)
 476                         if not m:
 477                                 continue
 478                         (sha1, name) = (m.group(1), m.group(2))
 479                         if not self.bt_sha1.has_key(sha1):
 480                                 self.bt_sha1[sha1] = []
 481                         self.bt_sha1[sha1].append(name)
 482                 fp.close()
 483
 484         def get_encoding(self):
 485                 fp = os.popen("git repo-config --get i18n.commitencoding")
 486                 self.encoding=string.strip(fp.readline())
 487                 fp.close()
 488                 if (self.encoding == ""):
 489                         self.encoding = "utf-8"
 490
 491
 492         def construct(self):
 493                 """Construct the window contents."""
 494                 vbox = gtk.VBox()
 495                 paned = gtk.VPaned()
 496                 paned.pack1(self.construct_top(), resize=False, shrink=True)
 497                 paned.pack2(self.construct_bottom(), resize=False, shrink=True)
 498                 menu_bar = gtk.MenuBar()
 499                 menu_bar.set_pack_direction(gtk.PACK_DIRECTION_RTL)
 500                 help_menu = gtk.MenuItem("Help")
 501                 menu = gtk.Menu()
 502                 about_menu = gtk.MenuItem("About")
 503                 menu.append(about_menu)
 504                 about_menu.connect("activate", self.about_menu_response, "about")
 505                 about_menu.show()
 506                 help_menu.set_submenu(menu)
 507                 help_menu.show()
 508                 menu_bar.append(help_menu)
 509                 menu_bar.show()
 510                 vbox.pack_start(menu_bar, expand=False, fill=True)
 511                 vbox.pack_start(paned, expand=True, fill=True)
 512                 paned.show()
 513                 vbox.show()
 514                 return vbox
 515
 516
 517         def construct_top(self):
 518                 """Construct the top-half of the window."""
 519                 vbox = gtk.VBox(spacing=6)
 520                 vbox.set_border_width(12)
 521                 vbox.show()
 522
 523
 524                 scrollwin = gtk.ScrolledWindow()
 525                 scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 526                 scrollwin.set_shadow_type(gtk.SHADOW_IN)
 527                 vbox.pack_start(scrollwin, expand=True, fill=True)
 528                 scrollwin.show()
 529
 530                 self.treeview = gtk.TreeView()
 531                 self.treeview.set_rules_hint(True)
 532                 self.treeview.set_search_column(4)
 533                 self.treeview.connect("cursor-changed", self._treeview_cursor_cb)
 534                 scrollwin.add(self.treeview)
 535                 self.treeview.show()
 536
 537                 cell = CellRendererGraph()
 538                 column = gtk.TreeViewColumn()
 539                 column.set_resizable(True)
 540                 column.pack_start(cell, expand=True)
 541                 column.add_attribute(cell, "node", 1)
 542                 column.add_attribute(cell, "in-lines", 2)
 543                 column.add_attribute(cell, "out-lines", 3)
 544                 self.treeview.append_column(column)
 545
 546                 cell = gtk.CellRendererText()
 547                 cell.set_property("width-chars", 65)
 548                 cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 549                 column = gtk.TreeViewColumn("Message")
 550                 column.set_resizable(True)
 551                 column.pack_start(cell, expand=True)
 552                 column.add_attribute(cell, "text", 4)
 553                 self.treeview.append_column(column)
 554
 555                 cell = gtk.CellRendererText()
 556                 cell.set_property("width-chars", 40)
 557                 cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 558                 column = gtk.TreeViewColumn("Author")
 559                 column.set_resizable(True)
 560                 column.pack_start(cell, expand=True)
 561                 column.add_attribute(cell, "text", 5)
 562                 self.treeview.append_column(column)
 563
 564                 cell = gtk.CellRendererText()
 565                 cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 566                 column = gtk.TreeViewColumn("Date")
 567                 column.set_resizable(True)
 568                 column.pack_start(cell, expand=True)
 569                 column.add_attribute(cell, "text", 6)
 570                 self.treeview.append_column(column)
 571
 572                 return vbox
 573
 574         def about_menu_response(self, widget, string):
 575                 dialog = gtk.AboutDialog()
 576                 dialog.set_name("Gitview")
 577                 dialog.set_version(GitView.version)
 578                 dialog.set_authors(["Aneesh Kumar K.V <aneesh.kumar@hp.com>"])
 579                 dialog.set_website("http://www.kernel.org/pub/software/scm/git/")
 580                 dialog.set_copyright("Use and distribute under the terms of the GNU General Public License")
 581                 dialog.set_wrap_license(True)
 582                 dialog.run()
 583                 dialog.destroy()
 584
 585
 586         def construct_bottom(self):
 587                 """Construct the bottom half of the window."""
 588                 vbox = gtk.VBox(False, spacing=6)
 589                 vbox.set_border_width(12)
 590                 (width, height) = self.window.get_size()
 591                 vbox.set_size_request(width, int(height / 2.5))
 592                 vbox.show()
 593
 594                 self.table = gtk.Table(rows=4, columns=4)
 595                 self.table.set_row_spacings(6)
 596                 self.table.set_col_spacings(6)
 597                 vbox.pack_start(self.table, expand=False, fill=True)
 598                 self.table.show()
 599
 600                 align = gtk.Alignment(0.0, 0.5)
 601                 label = gtk.Label()
 602                 label.set_markup("<b>Revision:</b>")
 603                 align.add(label)
 604                 self.table.attach(align, 0, 1, 0, 1, gtk.FILL, gtk.FILL)
 605                 label.show()
 606                 align.show()
 607
 608                 align = gtk.Alignment(0.0, 0.5)
 609                 self.revid_label = gtk.Label()
 610                 self.revid_label.set_selectable(True)
 611                 align.add(self.revid_label)
 612                 self.table.attach(align, 1, 2, 0, 1, gtk.EXPAND | gtk.FILL, gtk.FILL)
 613                 self.revid_label.show()
 614                 align.show()
 615
 616                 align = gtk.Alignment(0.0, 0.5)
 617                 label = gtk.Label()
 618                 label.set_markup("<b>Committer:</b>")
 619                 align.add(label)
 620                 self.table.attach(align, 0, 1, 1, 2, gtk.FILL, gtk.FILL)
 621                 label.show()
 622                 align.show()
 623
 624                 align = gtk.Alignment(0.0, 0.5)
 625                 self.committer_label = gtk.Label()
 626                 self.committer_label.set_selectable(True)
 627                 align.add(self.committer_label)
 628                 self.table.attach(align, 1, 2, 1, 2, gtk.EXPAND | gtk.FILL, gtk.FILL)
 629                 self.committer_label.show()
 630                 align.show()
 631
 632                 align = gtk.Alignment(0.0, 0.5)
 633                 label = gtk.Label()
 634                 label.set_markup("<b>Timestamp:</b>")
 635                 align.add(label)
 636                 self.table.attach(align, 0, 1, 2, 3, gtk.FILL, gtk.FILL)
 637                 label.show()
 638                 align.show()
 639
 640                 align = gtk.Alignment(0.0, 0.5)
 641                 self.timestamp_label = gtk.Label()
 642                 self.timestamp_label.set_selectable(True)
 643                 align.add(self.timestamp_label)
 644                 self.table.attach(align, 1, 2, 2, 3, gtk.EXPAND | gtk.FILL, gtk.FILL)
 645                 self.timestamp_label.show()
 646                 align.show()
 647
 648                 align = gtk.Alignment(0.0, 0.5)
 649                 label = gtk.Label()
 650                 label.set_markup("<b>Parents:</b>")
 651                 align.add(label)
 652                 self.table.attach(align, 0, 1, 3, 4, gtk.FILL, gtk.FILL)
 653                 label.show()
 654                 align.show()
 655                 self.parents_widgets = []
 656
 657                 align = gtk.Alignment(0.0, 0.5)
 658                 label = gtk.Label()
 659                 label.set_markup("<b>Children:</b>")
 660                 align.add(label)
 661                 self.table.attach(align, 2, 3, 3, 4, gtk.FILL, gtk.FILL)
 662                 label.show()
 663                 align.show()
 664                 self.children_widgets = []
 665
 666                 scrollwin = gtk.ScrolledWindow()
 667                 scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 668                 scrollwin.set_shadow_type(gtk.SHADOW_IN)
 669                 vbox.pack_start(scrollwin, expand=True, fill=True)
 670                 scrollwin.show()
 671
 672                 if have_gtksourceview:
 673                         self.message_buffer = gtksourceview.SourceBuffer()
 674                         slm = gtksourceview.SourceLanguagesManager()
 675                         gsl = slm.get_language_from_mime_type("text/x-patch")
 676                         self.message_buffer.set_highlight(True)
 677                         self.message_buffer.set_language(gsl)
 678                         sourceview = gtksourceview.SourceView(self.message_buffer)
 679                 else:
 680                         self.message_buffer = gtk.TextBuffer()
 681                         sourceview = gtk.TextView(self.message_buffer)
 682
 683                 sourceview.set_editable(False)
 684                 sourceview.modify_font(pango.FontDescription("Monospace"))
 685                 scrollwin.add(sourceview)
 686                 sourceview.show()
 687
 688                 return vbox
 689
 690         def _treeview_cursor_cb(self, *args):
 691                 """Callback for when the treeview cursor changes."""
 692                 (path, col) = self.treeview.get_cursor()
 693                 commit = self.model[path][0]
 694
 695                 if commit.committer is not None:
 696                         committer = commit.committer
 697                         timestamp = commit.commit_date
 698                         message   =  commit.get_message(self.with_diff)
 699                         revid_label = commit.commit_sha1
 700                 else:
 701                         committer = ""
 702                         timestamp = ""
 703                         message = ""
 704                         revid_label = ""
 705
 706                 self.revid_label.set_text(revid_label)
 707                 self.committer_label.set_text(committer)
 708                 self.timestamp_label.set_text(timestamp)
 709                 self.message_buffer.set_text(unicode(message, self.encoding).encode('utf-8'))
 710
 711                 for widget in self.parents_widgets:
 712                         self.table.remove(widget)
 713
 714                 self.parents_widgets = []
 715                 self.table.resize(4 + len(commit.parent_sha1) - 1, 4)
 716                 for idx, parent_id in enumerate(commit.parent_sha1):
 717                         self.table.set_row_spacing(idx + 3, 0)
 718
 719                         align = gtk.Alignment(0.0, 0.0)
 720                         self.parents_widgets.append(align)
 721                         self.table.attach(align, 1, 2, idx + 3, idx + 4,
 722                                         gtk.EXPAND | gtk.FILL, gtk.FILL)
 723                         align.show()
 724
 725                         hbox = gtk.HBox(False, 0)
 726                         align.add(hbox)
 727                         hbox.show()
 728
 729                         label = gtk.Label(parent_id)
 730                         label.set_selectable(True)
 731                         hbox.pack_start(label, expand=False, fill=True)
 732                         label.show()
 733
 734                         image = gtk.Image()
 735                         image.set_from_stock(gtk.STOCK_JUMP_TO, gtk.ICON_SIZE_MENU)
 736                         image.show()
 737
 738                         button = gtk.Button()
 739                         button.add(image)
 740                         button.set_relief(gtk.RELIEF_NONE)
 741                         button.connect("clicked", self._go_clicked_cb, parent_id)
 742                         hbox.pack_start(button, expand=False, fill=True)
 743                         button.show()
 744
 745                         image = gtk.Image()
 746                         image.set_from_stock(gtk.STOCK_FIND, gtk.ICON_SIZE_MENU)
 747                         image.show()
 748
 749                         button = gtk.Button()
 750                         button.add(image)
 751                         button.set_relief(gtk.RELIEF_NONE)
 752                         button.set_sensitive(True)
 753                         button.connect("clicked", self._show_clicked_cb,
 754                                         commit.commit_sha1, parent_id, self.encoding)
 755                         hbox.pack_start(button, expand=False, fill=True)
 756                         button.show()
 757
 758                 # Populate with child details
 759                 for widget in self.children_widgets:
 760                         self.table.remove(widget)
 761
 762                 self.children_widgets = []
 763                 try:
 764                         child_sha1 = Commit.children_sha1[commit.commit_sha1]
 765                 except KeyError:
 766                         # We don't have child
 767                         child_sha1 = [ 0 ]
 768
 769                 if ( len(child_sha1) > len(commit.parent_sha1)):
 770                         self.table.resize(4 + len(child_sha1) - 1, 4)
 771
 772                 for idx, child_id in enumerate(child_sha1):
 773                         self.table.set_row_spacing(idx + 3, 0)
 774
 775                         align = gtk.Alignment(0.0, 0.0)
 776                         self.children_widgets.append(align)
 777                         self.table.attach(align, 3, 4, idx + 3, idx + 4,
 778                                         gtk.EXPAND | gtk.FILL, gtk.FILL)
 779                         align.show()
 780
 781                         hbox = gtk.HBox(False, 0)
 782                         align.add(hbox)
 783                         hbox.show()
 784
 785                         label = gtk.Label(child_id)
 786                         label.set_selectable(True)
 787                         hbox.pack_start(label, expand=False, fill=True)
 788                         label.show()
 789
 790                         image = gtk.Image()
 791                         image.set_from_stock(gtk.STOCK_JUMP_TO, gtk.ICON_SIZE_MENU)
 792                         image.show()
 793
 794                         button = gtk.Button()
 795                         button.add(image)
 796                         button.set_relief(gtk.RELIEF_NONE)
 797                         button.connect("clicked", self._go_clicked_cb, child_id)
 798                         hbox.pack_start(button, expand=False, fill=True)
 799                         button.show()
 800
 801                         image = gtk.Image()
 802                         image.set_from_stock(gtk.STOCK_FIND, gtk.ICON_SIZE_MENU)
 803                         image.show()
 804
 805                         button = gtk.Button()
 806                         button.add(image)
 807                         button.set_relief(gtk.RELIEF_NONE)
 808                         button.set_sensitive(True)
 809                         button.connect("clicked", self._show_clicked_cb,
 810                                         child_id, commit.commit_sha1, self.encoding)
 811                         hbox.pack_start(button, expand=False, fill=True)
 812                         button.show()
 813
 814         def _destroy_cb(self, widget):
 815                 """Callback for when a window we manage is destroyed."""
 816                 self.quit()
 817
 818
 819         def quit(self):
 820                 """Stop the GTK+ main loop."""
 821                 gtk.main_quit()
 822
 823         def run(self, args):
 824                 self.set_branch(args)
 825                 self.window.connect("destroy", self._destroy_cb)
 826                 self.window.show()
 827                 gtk.main()
 828
 829         def set_branch(self, args):
 830                 """Fill in different windows with info from the reposiroty"""
 831                 fp = os.popen("git rev-parse --sq --default HEAD " + list_to_string(args, 1))
 832                 git_rev_list_cmd = fp.read()
 833                 fp.close()
 834                 fp = os.popen("git rev-list  --header --topo-order --parents " + git_rev_list_cmd)
 835                 self.update_window(fp)
 836
 837         def update_window(self, fp):
 838                 commit_lines = []
 839
 840                 self.model = gtk.ListStore(gobject.TYPE_PYOBJECT, gobject.TYPE_PYOBJECT,
 841                                 gobject.TYPE_PYOBJECT, gobject.TYPE_PYOBJECT, str, str, str)
 842
 843                 # used for cursor positioning
 844                 self.index = {}
 845
 846                 self.colours = {}
 847                 self.nodepos = {}
 848                 self.incomplete_line = {}
 849                 self.commits = []
 850
 851                 index = 0
 852                 last_colour = 0
 853                 last_nodepos = -1
 854                 out_line = []
 855                 input_line = fp.readline()
 856                 while (input_line != ""):
 857                         # The commit header ends with '\0'
 858                         # This NULL is immediately followed by the sha1 of the
 859                         # next commit
 860                         if (input_line[0] != '\0'):
 861                                 commit_lines.append(input_line)
 862                                 input_line = fp.readline()
 863                                 continue;
 864
 865                         commit = Commit(commit_lines)
 866                         if (commit != None ):
 867                                 self.commits.append(commit)
 868
 869                         # Skip the '\0
 870                         commit_lines = []
 871                         commit_lines.append(input_line[1:])
 872                         input_line = fp.readline()
 873
 874                 fp.close()
 875
 876                 for commit in self.commits:
 877                         (out_line, last_colour, last_nodepos) = self.draw_graph(commit,
 878                                                                                 index, out_line,
 879                                                                                 last_colour,
 880                                                                                 last_nodepos)
 881                         self.index[commit.commit_sha1] = index
 882                         index += 1
 883
 884                 self.treeview.set_model(self.model)
 885                 self.treeview.show()
 886
 887         def draw_graph(self, commit, index, out_line, last_colour, last_nodepos):
 888                 in_line=[]
 889
 890                 #   |   -> outline
 891                 #   X
 892                 #   |\  <- inline
 893
 894                 # Reset nodepostion
 895                 if (last_nodepos > 5):
 896                         last_nodepos = -1
 897
 898                 # Add the incomplete lines of the last cell in this
 899                 try:
 900                         colour = self.colours[commit.commit_sha1]
 901                 except KeyError:
 902                         self.colours[commit.commit_sha1] = last_colour+1
 903                         last_colour = self.colours[commit.commit_sha1]
 904                         colour =   self.colours[commit.commit_sha1]
 905
 906                 try:
 907                         node_pos = self.nodepos[commit.commit_sha1]
 908                 except KeyError:
 909                         self.nodepos[commit.commit_sha1] = last_nodepos+1
 910                         last_nodepos = self.nodepos[commit.commit_sha1]
 911                         node_pos =  self.nodepos[commit.commit_sha1]
 912
 913                 #The first parent always continue on the same line
 914                 try:
 915                         # check we alreay have the value
 916                         tmp_node_pos = self.nodepos[commit.parent_sha1[0]]
 917                 except KeyError:
 918                         self.colours[commit.parent_sha1[0]] = colour
 919                         self.nodepos[commit.parent_sha1[0]] = node_pos
 920
 921                 for sha1 in self.incomplete_line.keys():
 922                         if (sha1 != commit.commit_sha1):
 923                                 self.draw_incomplete_line(sha1, node_pos,
 924                                                 out_line, in_line, index)
 925                         else:
 926                                 del self.incomplete_line[sha1]
 927
 928
 929                 for parent_id in commit.parent_sha1:
 930                         try:
 931                                 tmp_node_pos = self.nodepos[parent_id]
 932                         except KeyError:
 933                                 self.colours[parent_id] = last_colour+1
 934                                 last_colour = self.colours[parent_id]
 935                                 self.nodepos[parent_id] = last_nodepos+1
 936                                 last_nodepos = self.nodepos[parent_id]
 937
 938                         in_line.append((node_pos, self.nodepos[parent_id],
 939                                                 self.colours[parent_id]))
 940                         self.add_incomplete_line(parent_id)
 941
 942                 try:
 943                         branch_tag = self.bt_sha1[commit.commit_sha1]
 944                 except KeyError:
 945                         branch_tag = [ ]
 946
 947
 948                 node = (node_pos, colour, branch_tag)
 949
 950                 self.model.append([commit, node, out_line, in_line,
 951                                 commit.message, commit.author, commit.date])
 952
 953                 return (in_line, last_colour, last_nodepos)
 954
 955         def add_incomplete_line(self, sha1):
 956                 try:
 957                         self.incomplete_line[sha1].append(self.nodepos[sha1])
 958                 except KeyError:
 959                         self.incomplete_line[sha1] = [self.nodepos[sha1]]
 960
 961         def draw_incomplete_line(self, sha1, node_pos, out_line, in_line, index):
 962                 for idx, pos in enumerate(self.incomplete_line[sha1]):
 963                         if(pos == node_pos):
 964                                 #remove the straight line and add a slash
 965                                 if ((pos, pos, self.colours[sha1]) in out_line):
 966                                         out_line.remove((pos, pos, self.colours[sha1]))
 967                                 out_line.append((pos, pos+0.5, self.colours[sha1]))
 968                                 self.incomplete_line[sha1][idx] = pos = pos+0.5
 969                         try:
 970                                 next_commit = self.commits[index+1]
 971                                 if (next_commit.commit_sha1 == sha1 and pos != int(pos)):
 972                                 # join the line back to the node point
 973                                 # This need to be done only if we modified it
 974                                         in_line.append((pos, pos-0.5, self.colours[sha1]))
 975                                         continue;
 976                         except IndexError:
 977                                 pass
 978                         in_line.append((pos, pos, self.colours[sha1]))
 979
 980
 981         def _go_clicked_cb(self, widget, revid):
 982                 """Callback for when the go button for a parent is clicked."""
 983                 try:
 984                         self.treeview.set_cursor(self.index[revid])
 985                 except KeyError:
 986                         dialog = gtk.MessageDialog(parent=None, flags=0,
 987                                         type=gtk.MESSAGE_WARNING, buttons=gtk.BUTTONS_CLOSE,
 988                                         message_format=None)
 989                         dialog.set_markup("Revision <b>%s</b> not present in the list" % revid)
 990                         # revid == 0 is the parent of the first commit
 991                         if (revid != 0 ):
 992                                 dialog.format_secondary_text("Try running gitview without any options")
 993                         dialog.run()
 994                         dialog.destroy()
 995
 996                 self.treeview.grab_focus()
 997
 998         def _show_clicked_cb(self, widget,  commit_sha1, parent_sha1, encoding):
 999                 """Callback for when the show button for a parent is clicked."""
1000                 window = DiffWindow()
1001                 window.set_diff(commit_sha1, parent_sha1, encoding)
1002                 self.treeview.grab_focus()
1003
1004 without_diff = 0
1005 if __name__ == "__main__":
1006
1007         if (len(sys.argv) > 1 ):
1008                 if (sys.argv[1] == "--without-diff"):
1009                         without_diff = 1
1010
1011         view = GitView( without_diff != 1)
1012         view.run(sys.argv[without_diff:])
1013
1014