Plugins/VcsPlugins/vcsMercurial/QueuesExtension/HgQueuesListAllGuardsDialog.py

# -*- coding: utf-8 -*-

# Copyright (c) 2011 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a dialog to show all guards for all patches.
"""

import os

from PyQt4.QtCore import QProcess, QTimer
from PyQt4.QtGui import QDialog, QTreeWidgetItem

from .Ui_HgQueuesListAllGuardsDialog import Ui_HgQueuesListAllGuardsDialog

import Preferences
import UI.PixmapCache


class HgQueuesListAllGuardsDialog(QDialog, Ui_HgQueuesListAllGuardsDialog):
    """
    Class implementing a dialog to show all guards for all patches.
    """
    def __init__(self, vcs, parent=None):
        """
        Constructor
        
        @param parent reference to the parent widget (QWidget)
        """
        QDialog.__init__(self, parent)
        self.setupUi(self)
        
        self.process = QProcess()
        self.vcs = vcs
    
    def closeEvent(self, e):
        """
        Private slot implementing a close event handler.
        
        @param e close event (QCloseEvent)
        """
        if self.process is not None and \
           self.process.state() != QProcess.NotRunning:
            self.process.terminate()
            QTimer.singleShot(2000, self.process.kill)
            self.process.waitForFinished(3000)
        
        e.accept()
    
    def start(self, path):
        """
        Public slot to start the list command.
        
        @param path name of directory to be listed (string)
        """
        dname, fname = self.vcs.splitPath(path)
        
        # find the root of the repo
        repodir = dname
        while not os.path.isdir(os.path.join(repodir, self.vcs.adminDir)):
            repodir = os.path.dirname(repodir)
            if repodir == os.sep:
                return
        
        ioEncoding = Preferences.getSystem("IOEncoding")
        process = QProcess()
        args = []
        args.append("qguard")
        args.append("--list")
        
        process.setWorkingDirectory(repodir)
        process.start('hg', args)
        procStarted = process.waitForStarted()
        if procStarted:
            finished = process.waitForFinished(30000)
            if finished and process.exitCode() == 0:
                output = \
                    str(process.readAllStandardOutput(), ioEncoding, 'replace')
                if output:
                    guardsDict = {}
                    for line in output.splitlines():
                        if line:
                            patchName, guards = line.strip().split(":", 1)
                            guardsDict[patchName] = guards.strip().split()
                    for patchName in sorted(guardsDict.keys()):
                        patchItm = QTreeWidgetItem(self.guardsTree, [patchName])
                        patchItm.setExpanded(True)
                        for guard in guardsDict[patchName]:
                            if guard.startswith("+"):
                                icon = UI.PixmapCache.getIcon("plus.png")
                                guard = guard[1:]
                            elif guard.startswith("-"):
                                icon = UI.PixmapCache.getIcon("minus.png")
                                guard = guard[1:]
                            else:
                                icon = None
                                guard = self.trUtf8("Unguarded")
                            itm = QTreeWidgetItem(patchItm, [guard])
                            if icon:
                                itm.setIcon(0, icon)
                else:
                    QTreeWidgetItem(self.guardsTree, [self.trUtf8("no patches found")])