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from PyQt5 import QtGui, QtCore, QtWidgets
from ost.gui import AdminRights
import ost
import os
#from ost.gui import AdminRights
usage='''The DNG application bundle contains two shell commands ('ost' and 'dng') that lets you use the OpenStructure command-line interpreter and dng from the terminal. If you want to use these commands, it is recommended that a symbolic link is created.
'''
class TerminalUsageDialog(QtWidgets.QDialog):
def __init__(self, parent=None):
QtWidgets.QDialog.__init__(self, parent)
self.setWindowTitle('Enhanced Terminal Usage')
self.setFixedSize(QSize(480, 300))
l=QVBoxLayout(self)
title=QLabel('Enhanced Terminal Usage')
font=title.font()
font.setPointSize(20)
title.setFont(font)
l.addWidget(title)
text=QLabel(usage)
l.addWidget(text)
l2=QHBoxLayout()
l2.addWidget(QLabel('If you proceed, the link will be created in: '))
self.path_combo=QComboBox()
self.path_combo.setFixedWidth(150)
for path in os.getenv('PATH').split(':'):
exp_path=os.path.expanduser(path)
if os.path.exists(exp_path) and exp_path.find('DNG.app')==-1:
self.path_combo.addItem(path)
l2.addWidget(self.path_combo)
l.addLayout(l2)
l3=QHBoxLayout()
ab=QPushButton('Create Link')
ab.setDefault(True)
cb=QPushButton('Don\'t Create')
l3.addStretch(1)
l3.addWidget(cb, 0)
l3.addWidget(ab, 0)
l.addLayout(l3)
text.setWordWrap(True)
QObject.connect(cb, SIGNAL('clicked()'), self.reject)
QObject.connect(ab, SIGNAL('clicked()'), self.accept)
def GetSelectedPath(self):
return str(self.path_combo.currentText())
def _CreateLinks(bin_dir, sel_dir):
for bin in ('ost', 'dng','lddt', 'chemdict_tool'):
if os.path.exists(os.path.join(sel_dir, bin)):
os.unlink(os.path.join(sel_dir, bin))
os.system('ln -s "%s" "%s"' % (os.path.join(bin_dir, bin),
os.path.join(sel_dir, bin)))
def InstallTerminalPrograms():
"""
Installs symlinks to the 'ost' and 'dng' command line programs into a
user-specified directory in the path.
"""
term_use=TerminalUsageDialog()
if term_use.exec_():
prefix=ost.GetPrefixPath()
bin_dir=os.path.join(prefix, 'bin')
sel_path=term_use.GetSelectedPath()
if not os.access(sel_path, os.W_OK):
admin_rights=AdminRights()
if admin_rights.Acquire():
for bin in ('ost', 'dng', 'lddt', 'chemdict_tool'):
admin_rights.CreateLink(os.path.join(bin_dir, bin),
os.path.join(sel_path, bin))
admin_rights.Release()
else:
_CreateLinks(bin_dir, sel_path)
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