98 lines
3.1 KiB
Python
Executable File
98 lines
3.1 KiB
Python
Executable File
#!/usr/bin/python
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# Terminator.util - misc utility functions
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# Copyright (C) 2006-2008 cmsj@tenshu.net
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 2 only.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Terminator.util - misc utility functions"""
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import sys
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import gtk
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import os
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import pwd
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# set this to true to enable debugging output
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DEBUG = True
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def dbg(log = ""):
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"""Print a message if debugging is enabled"""
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if DEBUG:
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print >> sys.stderr, log
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def err(log = ""):
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"""Print an error message"""
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print >> sys.stderr, log
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def gerr(message = None):
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"""Display a graphical error. This should only be used for serious
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errors as it will halt execution"""
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dialog = gtk.MessageDialog(None, gtk.DIALOG_MODAL,
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gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, message)
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dialog.run()
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def has_ancestor(widget, wtype):
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"""Walk up the family tree of widget to see if any ancestors are of type"""
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while widget:
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widget = widget.get_parent()
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if isinstance(widget, wtype):
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return(True)
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return(False)
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def path_lookup(command):
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'''Find a command in our path'''
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if os.path.isabs(command):
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if os.path.isfile(command):
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return(command)
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else:
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return(None)
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elif command[:2] == './' and os.path.isfile(command):
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dbg('path_lookup: Relative filename %s found in cwd' % command)
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return(command)
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try:
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paths = os.environ['PATH'].split(':')
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if len(paths[0]) == 0:
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raise(ValueError)
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except (ValueError, NameError):
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dbg('path_lookup: PATH not set in environment, using fallbacks')
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paths = ['/usr/local/bin', '/usr/bin', '/bin']
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dbg('path_lookup: Using %d paths: %s', (len(paths), paths))
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for path in paths:
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target = os.path.join(path, command)
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if os.path.isfile(target):
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dbg('path_lookup: found %s' % target)
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return(target)
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dbg('path_lookup: Unable to locate %s' % command)
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def shell_lookup():
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"""Find an appropriate shell for the user"""
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shells = [os.getenv('SHELL'), pwd.getpwuid(os.getuid())[6], 'bash',
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'zsh', 'tcsh', 'ksh', 'csh', 'sh']
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for shell in shells:
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if shell is None:
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continue
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elif os.path.isfile(shell):
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return(shell)
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else:
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rshell = path_lookup(shell)
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if rshell is not None:
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dbg('shell_lookup: Found %s at %s' % (shell, rshell))
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return(rshell)
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dbg('shell_lookup: Unable to locate a shell')
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