main.py

   1 #!/usr/bin/env python
   2
   3 # Copyright (c) 2005 Fredrik Kuivinen <freku045@student.liu.se>
   4 # Copyright (c) 2005 Mark Williamson <mark.williamson@cl.cam.ac.uk>
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License version 2 as
   8 # published by the Free Software Foundation.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18
  19 from ctcore import *
  20 import sys, math, random, qt, os, re, signal, sets
  21 from optparse import OptionParser
  22
  23 # Determine semantics according to executable name.  Default to git.
  24 if os.path.basename(sys.argv[0]) == 'hgct':
  25     import hg as scm
  26 else:
  27     import git as scm
  28
  29 qconnect = qt.QObject.connect
  30 Qt = qt.Qt
  31 #DEBUG = 1
  32
  33 class CommitError(Exception):
  34     def __init__(self, operation, msg):
  35         self.operation = operation
  36         self.msg = msg
  37
  38 class FileState:
  39     pass
  40
  41 class MyListItem(qt.QCheckListItem):
  42     def __init__(self, parent, file, commitMsg = False):
  43         qt.QCheckListItem.__init__(self, parent, file.text, qt.QCheckListItem.CheckBox)
  44         self.file = file
  45         self.commitMsg = commitMsg
  46
  47     def compare(self, item, col, asc):
  48         if self.commitMsg:
  49             if asc:
  50                 return -1
  51             else:
  52                 return 1
  53         elif item.commitMsg:
  54             if asc:
  55                 return 1
  56             else:
  57                 return -1
  58         else:
  59             return cmp(self.file.srcName, item.file.srcName)
  60
  61     def paintCell(self, p, cg, col, w, a):
  62         if self.commitMsg:
  63             qt.QListViewItem.paintCell(self, p, cg, col, w, a)
  64         else:
  65             qt.QCheckListItem.paintCell(self, p, cg, col, w, a)
  66
  67     def isSelected(self):
  68         return self.state() == qt.QCheckListItem.On
  69
  70     def setSelected(self, s):
  71         if s:
  72             self.setState(qt.QCheckListItem.On)
  73         else:
  74             self.setState(qt.QCheckListItem.Off)
  75
  76 class MyListView(qt.QListView):
  77     def __init__(self, parent=None, name=None):
  78         qt.QListView.__init__(self, parent, name)
  79
  80     def __iter__(self):
  81         return ListViewIterator(self)
  82
  83 class ListViewIterator:
  84     def __init__(self, listview):
  85         self.it = qt.QListViewItemIterator(listview)
  86
  87     def next(self):
  88         cur = self.it.current()
  89         if cur:
  90             self.it += 1
  91             if cur.commitMsg:
  92                 return self.next()
  93             else:
  94                 return cur
  95         else:
  96             raise StopIteration()
  97
  98     def __iter__(self):
  99         return self
 100
 101 class MainWidget(qt.QMainWindow):
 102     def __init__(self, options, parent=None, name=None):
 103         qt.QMainWindow.__init__(self, parent, name)
 104         self.setCaption(applicationName)
 105
 106         splitter = qt.QSplitter(Qt.Vertical, self)
 107         self.setCentralWidget(splitter)
 108         self.splitter = splitter
 109
 110         # The file list and file filter widgets are part of this layout widget.
 111         self.filesLayout = qt.QVBox(splitter)
 112
 113         # The file list
 114         fW = MyListView(self.filesLayout)
 115         self.filesW = fW
 116         fW.setFocus()
 117         fW.setSelectionMode(qt.QListView.NoSelection)
 118         fW.addColumn('Description')
 119         fW.setResizeMode(qt.QListView.AllColumns)
 120
 121         # The file filter
 122         self.filterLayout = qt.QHBox(self.filesLayout)
 123         self.filterClear = qt.QPushButton("&Clear", self.filterLayout)
 124         self.filterLabel = qt.QLabel(" File filter:  ", self.filterLayout)
 125         qconnect(self.filterClear, qt.SIGNAL("clicked()"), self.clearFilter)
 126         self.filter = qt.QLineEdit(self.filterLayout)
 127         self.filterLabel.setBuddy(self.filter)
 128
 129         qconnect(self.filter, qt.SIGNAL("textChanged(const QString&)"), self.updateFilter)
 130
 131         self.newCurLambda = lambda i: self.currentChange(i)
 132         qconnect(fW, qt.SIGNAL("currentChanged(QListViewItem*)"), self.newCurLambda)
 133
 134         # The diff viewing widget
 135         self.text = qt.QWidgetStack(splitter)
 136
 137         ops = qt.QPopupMenu(self)
 138         ops.insertItem("Commit Selected Files", self.commit, Qt.CTRL+Qt.Key_T)
 139         ops.insertItem("Refresh", self.refreshFiles, Qt.CTRL+Qt.Key_R)
 140         ops.insertItem("Select All", self.selectAll, Qt.CTRL+Qt.Key_A)
 141         ops.insertItem("Unselect All", self.unselectAll, Qt.CTRL+Qt.Key_U)
 142         ops.insertItem("Preferences...", self.showPrefs, Qt.CTRL+Qt.Key_P)
 143
 144         m = self.menuBar()
 145         m.insertItem("&Operations", ops)
 146
 147         h = qt.QPopupMenu(self)
 148         h.insertItem("&About", self.about)
 149         m.insertItem("&Help", h)
 150
 151         qconnect(fW, qt.SIGNAL("contextMenuRequested(QListViewItem*, const QPoint&, int)"),
 152                  self.contextMenuRequestedSlot)
 153         self.fileOps = qt.QPopupMenu(self)
 154         self.fileOps.insertItem("Toggle selection", self.toggleFile)
 155         self.fileOps.insertItem("Edit", self.editFile, Qt.CTRL+Qt.Key_E)
 156         self.fileOps.insertItem("Discard changes", self.discardFile)
 157         self.fileOps.insertItem("Ignore file", self.ignoreFile)
 158
 159         # The following attribute is set by contextMenuRequestedSlot
 160         # and currentChange and used by the fileOps
 161         self.currentContextItem = None
 162
 163         self.patchColors = {'std': 'black', 'new': '#009600', 'remove': '#C80000', 'head': '#C800C8'}
 164
 165         self.files = []
 166
 167         f = File()
 168         f.text = "Commit message"
 169         f.textW = self.newTextEdit()
 170         f.textW.setTextFormat(Qt.PlainText)
 171         f.textW.setReadOnly(False)
 172         f.textW.setText(settings().signoff)
 173
 174         self.cmitFile = f
 175         self.createCmitItem()
 176         self.editorProcesses = sets.Set()
 177         self.loadSettings()
 178
 179         self.options = options
 180
 181     def loadSettings(self):
 182         self.splitter.setSizes(settings().splitter)
 183
 184     def closeEvent(self, e):
 185         s = self.size()
 186         settings().width = s.width()
 187         settings().height = s.height()
 188         settings().splitter = self.splitter.sizes()
 189         e.accept()
 190
 191     def createCmitItem(self):
 192         self.cmitItem = MyListItem(self.filesW, self.cmitFile, True)
 193         self.cmitItem.setSelectable(False)
 194         self.filesW.insertItem(self.cmitItem)
 195         self.cmitFile.listViewItem = self.cmitItem
 196
 197     def about(self, ignore):
 198         qt.QMessageBox.about(self, "About " + applicationName,
 199 "<qt><center><h1>" + applicationName + " " + version + """</h1></center>\n
 200 <center>Copyright &copy; 2005 Fredrik Kuivinen &lt;freku045@student.liu.se&gt;
 201 </center>\n<p>
 202 <center>Copyright &copy; 2005 Mark Williamson &lt;maw48@cl.cam.ac.uk&gt;
 203 </center>\n<p> This program is free software; you can redistribute it and/or
 204  modify it under the terms of the GNU General Public License version 2 as
 205  published by the Free Software Foundation.</p></qt>""")
 206
 207     def contextMenuRequestedSlot(self, item, pos, col):
 208         if item and not item.commitMsg:
 209             self.currentContextItem = item
 210             self.fileOps.exec_loop(qt.QCursor.pos())
 211         else:
 212             self.currentContextItem = None
 213
 214     def toggleFile(self, ignored):
 215         it = self.currentContextItem
 216         if not it:
 217             return
 218
 219         if it.isSelected():
 220             it.setSelected(False)
 221         else:
 222             it.setSelected(True)
 223
 224     def editFile(self, ignored):
 225         it = self.currentContextItem
 226         if not it:
 227             return
 228
 229         ed = getEditor()
 230         if not ed:
 231             qt.QMessageBox.warning(self, 'No editor found',
 232 '''No editor found. Gct looks for an editor to execute in the environment
 233 variable GCT_EDITOR, if that variable is not set it will use the variable
 234 EDITOR.''')
 235             return
 236
 237         # This piece of code is not entirely satisfactory. If the user
 238         # has EDITOR set to 'vi', or some other non-X application, the
 239         # editor will be started in the terminal which (h)gct was
 240         # started in. A better approach would be to close stdin and
 241         # stdout after the fork but before the exec, but this doesn't
 242         # seem to be possible with QProcess.
 243         p = qt.QProcess(ed)
 244         p.addArgument(it.file.dstName)
 245         p.setCommunication(0)
 246         qconnect(p, qt.SIGNAL('processExited()'), self.editorExited)
 247         if not p.launch(qt.QByteArray()):
 248             qt.QMessageBox.warning(self, 'Failed to launch editor',
 249                                    shortName + ' failed to launch the ' + \
 250                                    'editor. The command used was: ' + \
 251                                    ed + ' ' + it.file.dstName)
 252         else:
 253             self.editorProcesses.add(p)
 254
 255     def editorExited(self):
 256         p = self.sender()
 257         status = p.exitStatus()
 258         file = str(p.arguments()[1])
 259         editor = str(p.arguments()[0]) + ' ' + file
 260         if not p.normalExit():
 261             qt.QMessageBox.warning(self, 'Editor failure',
 262                                    'The editor, ' +  editor + ', exited abnormally.')
 263         elif status != 0:
 264             qt.QMessageBox.warning(self, 'Editor failure',
 265                                    'The editor, ' +  editor + ', exited with exit code ' + str(status))
 266
 267         self.editorProcesses.remove(p)
 268         scm.doUpdateCache(file)
 269         self.refreshFiles()
 270
 271     def discardFile(self, ignored):
 272         it = self.currentContextItem
 273         if not it:
 274             return
 275
 276         scm.discardFile(it.file)
 277         self.refreshFiles()
 278
 279     def ignoreFile(self, ignored):
 280         it = self.currentContextItem
 281         if not it:
 282             return
 283
 284         scm.ignoreFile(it.file)
 285         self.refreshFiles()
 286
 287     def currentChange(self, item):
 288         self.text.raiseWidget(item.file.textW)
 289         self.text.update()
 290         self.currentContextItem = item
 291
 292     def commit(self, id):
 293         selFileNames = []
 294         keepFiles = []
 295         commitFiles = []
 296
 297         for item in self.filesW:
 298             debug("file: " + item.file.text)
 299             if item.isSelected():
 300                 selFileNames.append(item.file.text)
 301                 commitFiles.append(item.file)
 302             else:
 303                 keepFiles.append(item.file)
 304
 305         commitMsg = str(self.cmitItem.file.textW.text())
 306
 307         if not selFileNames:
 308             qt.QMessageBox.information(self, "Commit - " + applicationName,
 309                                        "No files selected for commit.", "&Ok")
 310             return
 311
 312         commitMsg = fixCommitMsgWhiteSpace(commitMsg)
 313         if scm.commitIsMerge():
 314             mergeMsg = scm.mergeMessage()
 315         else:
 316             mergeMsg = ''
 317
 318         if(qt.QMessageBox.question(self, "Confirm Commit - " + applicationName,
 319 '<qt><p>' + mergeMsg + '</p><p>Do you want to commit the following file(s):</p><blockquote>' +
 320 '<br>'.join(selFileNames) +
 321 '''</blockquote><p>with the commit message:</p><blockquote><pre>''' +
 322 str(qt.QStyleSheet.escape(commitMsg)) + '</pre></blockquote></qt>',
 323 '&Yes', '&No')):
 324             return
 325         else:
 326             try:
 327                 scm.doCommit(keepFiles, commitFiles, commitMsg)
 328             except CommitError, e:
 329                 qt.QMessageBox.warning(self, "Commit Failed - " + applicationName,
 330                                        "Commit failed during " + e.operation + ": " + e.msg,
 331                                        '&Ok')
 332             except OSError, e:
 333                 qt.QMessageBox.warning(self, "Commit Failed - " + applicationName,
 334                                        "Commit failed: " + e.strerror,
 335                                        '&Ok')
 336             else:
 337                 if not self.options.oneshot:
 338                     self.cmitItem.file.textW.setText(settings().signoff)
 339                     self.refreshFiles()
 340
 341             if self.options.oneshot:
 342                 self.close()
 343
 344
 345     def getFileState(self):
 346         ret = FileState()
 347         cur = self.filesW.currentItem()
 348         if cur and cur != self.cmitItem:
 349             ret.current = self.filesW.currentItem().file.dstName
 350         else:
 351             ret.current = None
 352         ret.selected = sets.Set()
 353
 354         for x in self.filesW:
 355             if x.isSelected():
 356                 ret.selected.add(x.file.dstName)
 357
 358         return ret
 359
 360     def restoreFileState(self, state):
 361         for f in self.files:
 362             f.listViewItem.setSelected(f.dstName in state.selected)
 363
 364         for x in self.filesW:
 365             if x.file.dstName == state.current:
 366                 self.filesW.setCurrentItem(x)
 367
 368     def newTextEdit(self):
 369         ret = qt.QTextEdit()
 370         self.text.addWidget(ret)
 371         return ret
 372
 373     def setFiles(self, files):
 374         state = self.getFileState()
 375         self.filesW.clear()
 376         self.createCmitItem()
 377         for f in self.files:
 378             self.text.removeWidget(f.textW)
 379             f.listViewItem = None
 380
 381         self.files = []
 382         for f in files:
 383             f.textW = self.newTextEdit()
 384             f.textW.setReadOnly(True)
 385             f.textW.setTextFormat(Qt.RichText)
 386             f.textW.setText(formatPatchRichText(f.patch, self.patchColors))
 387             self.files.append(f)
 388
 389             f.listViewItem = MyListItem(self.filesW, f)
 390             # Only display files that match the filter.
 391             f.listViewItem.setVisible(self.filterMatch(f))
 392             self.filesW.insertItem(f.listViewItem)
 393
 394         self.filesW.setCurrentItem(self.cmitItem)
 395
 396         # For some reason the currentChanged signal isn't emitted
 397         # here. We call currentChange ourselves instead.
 398         self.currentChange(self.cmitItem)
 399
 400         self.restoreFileState(state)
 401
 402     def refreshFiles(self, ignored=None):
 403         files = scm.getFiles()
 404         if settings().quitOnNoChanges and len(files) == 0:
 405             self.close()
 406         else:
 407             self.setFiles(files)
 408
 409         return len(files) > 0
 410
 411     def filterMatch(self, file):
 412         return file.dstName.find(str(self.filter.text())) != -1
 413
 414     def updateFilter(self, ignored=None):
 415         for w in self.filesW:
 416             w.setVisible(self.filterMatch(w.file))
 417
 418     def clearFilter(self):
 419         self.filter.setText("")
 420
 421     def selectAll(self):
 422         for x in self.filesW:
 423             if x.isVisible():
 424                 x.setSelected(True)
 425
 426     def unselectAll(self):
 427         for x in self.filesW:
 428             if x.isVisible():
 429                 x.setSelected(False)
 430
 431     def showPrefs(self):
 432         if settings().showSettings():
 433             self.refreshFiles()
 434
 435 commitMsgRE = re.compile('[ \t\r\f\v]*\n\\s*\n')
 436 def fixCommitMsgWhiteSpace(msg):
 437     msg = msg.lstrip()
 438     msg = msg.rstrip()
 439     msg = re.sub(commitMsgRE, '\n\n', msg)
 440     msg += '\n'
 441     return msg
 442
 443 def formatPatchRichText(patch, colors):
 444     ret = ['<qt><pre><font color="', colors['std'], '">']
 445     prev = ' '
 446     for l in patch.split('\n'):
 447         if len(l) > 0:
 448             c = l[0]
 449         else:
 450             c = ' '
 451
 452         if c != prev:
 453             if   c == '+': style = 'new'
 454             elif c == '-': style = 'remove'
 455             elif c == '@': style = 'head'
 456             else: style = 'std'
 457             ret.extend(['</font><font color="', colors[style], '">'])
 458             prev = c
 459         line = qt.QStyleSheet.escape(l).ascii()
 460         if not line:
 461             line = ''
 462         else:
 463             line = str(line)
 464         ret.extend([line, '\n'])
 465     ret.append('</pre></qt>')
 466     return ''.join(ret)
 467
 468 def getEditor():
 469     if os.environ.has_key('GCT_EDITOR'):
 470         return os.environ['GCT_EDITOR']
 471     elif os.environ.has_key('EDITOR'):
 472         return os.environ['EDITOR']
 473     else:
 474         return None
 475
 476 scm.repoValid()
 477
 478 app = qt.QApplication(sys.argv)
 479
 480 optParser = OptionParser(usage="%prog [--gui] [--one-shot]", version=applicationName + ' ' + version)
 481 optParser.add_option('-g', '--gui', action='store_true', dest='gui',
 482                      help='Unconditionally start the GUI')
 483 optParser.add_option('-o', '--one-shot', action='store_true', dest='oneshot',
 484                      help="Do (at most) one commit, then exit.")
 485 (options, args) = optParser.parse_args(app.argv()[1:])
 486
 487 mw = MainWidget(options)
 488
 489 if not mw.refreshFiles() and settings().quitOnNoChanges and not options.gui:
 490     print 'No outstanding changes'
 491     sys.exit(0)
 492
 493 mw.resize(settings().width, settings().height)
 494
 495 # The following code doesn't work correctly in some (at least
 496 # Metacity) window
 497 # managers. http://doc.trolltech.com/3.3/geometry.html contains some
 498 # information about this issue.
 499 # mw.move(settings.readNumEntry('x', 100)[0],
 500 #         settings.readNumEntry('y', 100)[0])
 501
 502 mw.show()
 503 app.setMainWidget(mw)
 504
 505
 506 # Handle CTRL-C appropriately
 507 signal.signal(signal.SIGINT, lambda s, f: app.quit())
 508
 509 ret = app.exec_loop()
 510 settings().writeSettings()
 511 sys.exit(ret)