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#!/usr/bin/env python3
# Relational
# Copyright (C) 2008-2025 Salvo "LtWorf" Tomaselli
#
# Relational is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# author Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>
import sys
import os
import os.path
import getopt
import gettext
gettext.bindtextdomain('relational')
gettext.textdomain('relational')
_ = gettext.gettext
version = "3.4"
def printver(exit=True):
print ("Relational %s" % version)
print (_("Copyright (C) 2008-2025 Salvo 'LtWorf' Tomaselli.\n"
"\n"
"This program comes with ABSOLUTELY NO WARRANTY.\n"
"This is free software, and you are welcome to redistribute it\n"
"under certain conditions.\n"
"For details see the GPLv3 Licese.\n"
"\n"
"Written by Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it>\n"
"\n"
"https://ltworf.codeberg.page/relational/"))
if exit:
sys.exit(0)
def printhelp(code=0):
print ("Relational")
print ()
print ("Usage: %s [options] [files]" % sys.argv[0])
print ()
print (_(' -v Print version and exits'))
print (_(' -h Print this help and exits'))
print (_(' -q Uses Qt user interface'))
print (_(' -r Uses readline user interface'))
sys.exit(code)
if __name__ == "__main__":
if sys.argv[0].endswith('relational-cli'):
x11 = False
else:
x11 = True # Will try to use the x11 interface
# Getting command line
try:
switches, files = getopt.getopt(sys.argv[1:], "vhqr")
except:
printhelp(1)
for i in switches:
if i[0] == '-v':
printver()
elif i[0] == '-h':
printhelp()
elif i[0] == '-q':
x11 = True
elif i[0] == '-r':
x11 = False
if x11:
import signal
signal.signal(signal.SIGINT, signal.SIG_DFL)
from PyQt6 import QtWidgets
try:
from relational_gui import guihandler, about, surveyForm
except:
print (
_('Module relational_gui is missing.\nPlease install relational package or run make.'),
file=sys.stderr
)
sys.exit(3)
m = zip(files, map(os.path.isfile, files))
invalid = ' '.join(
(i[0] for i in (filter(lambda x: not x[1], m)))
)
if invalid:
print ("%s: not a file" % invalid, file=sys.stderr)
printhelp(12)
about.version = version
surveyForm.version = version
guihandler.version = version
app = QtWidgets.QApplication(sys.argv)
app.setOrganizationName('None')
app.setApplicationName('relational')
app.setOrganizationDomain("None")
form = guihandler.relForm()
if len(files):
form.loadRelation(files)
form.show()
sys.exit(app.exec())
else:
try:
import relational_readline.linegui
if relational_readline.linegui.TTY:
printver(False)
except:
print (
_('Module relational_readline is missing.\nPlease install relational-cli package.'),
file=sys.stderr
)
sys.exit(3)
relational_readline.linegui.version = version
relational_readline.linegui.main(files)
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