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