# -*- test-case-name: twisted.scripts.test.test_tap2deb -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
tap2deb creates Debian packages which wrap .tap files.
"""

import os
import sys
import shutil
import subprocess
from email.utils import formatdate as now

from twisted.python import usage
from twisted.python.filepath import FilePath


class MyOptions(usage.Options):
optFlags = [["unsigned", "u"]]
optParameters = [["tapfile", "t", "twistd.tap"],
["maintainer", "m", "",
"The maintainer's name and email in a specific format: "
"'John Doe <[email protected]>'"],
["protocol", "p", ""],
["description", "e", ""],
["long_description", "l", ""],
["set-version", "V", "1.0"],
["debfile", "d", None],
["type", "y", "tap", "Type of configuration: 'tap', 'xml', "
"'source' or 'python' for .tac files"]]

compData = usage.Completions(
optActions={
"type": usage.CompleteList(["tap", "xml", "source", "python"]),
"debfile": usage.CompleteFiles("*.deb")}
)

def postOptions(self):
if not self["maintainer"]:
raise usage.UsageError("maintainer must be specified.")


type_dict = {
'tap': 'file',
'python': 'python',
'source': 'source',
'xml': 'xml',
}



def run(args=None):
"""
Parses the configuration options in C{args} and runs C{dpkg-buildpackage}
to create a .deb file.

@param args: List of strings representing the C{tap2deb} configuration
options.
@type args: L{list}
"""
try:
config = MyOptions()
config.parseOptions(args)
except usage.error as ue:
sys.exit("%s: %s" % (sys.argv[0], ue))

tapFile = config['tapfile']
baseTapFile = os.path.basename(config['tapfile'])
protocol = (config['protocol'] or os.path.splitext(baseTapFile)[0])
debFile = config['debfile'] or 'twisted-' + protocol
version = config['set-version']
maintainer = config['maintainer']
description = config['description'] or (
'A Twisted-based server for %(protocol)s' % vars())
longDescription = config['long_description'] or\
'Automatically created by tap2deb'
twistdOption = type_dict[config['type']]
date = now()
directory = debFile + '-' + version
pythonVersion = '%s.%s' % sys.version_info[:2]
buildDir = FilePath('.build').child(directory)

if buildDir.exists():
buildDir.remove()

debianDir = buildDir.child('debian')
debianDir.child('source').makedirs()
shutil.copy(tapFile, buildDir.path)

debianDir.child('README.Debian').setContent(
'''This package was auto-generated by tap2deb\n''')

debianDir.child('conffiles').setContent(
'''\
/etc/init.d/%(debFile)s
/etc/default/%(debFile)s
/etc/%(baseTapFile)s
''' % vars())

debianDir.child('default').setContent(
'''\
pidfile=/var/run/%(debFile)s.pid
rundir=/var/lib/%(debFile)s/
file=/etc/%(tapFile)s
logfile=/var/log/%(debFile)s.log
''' % vars())

debianDir.child('init.d').setContent(
'''\
#!/bin/sh

PATH=/sbin:/bin:/usr/sbin:/usr/bin

pidfile=/var/run/%(debFile)s.pid \
rundir=/var/lib/%(debFile)s/ \
file=/etc/%(tapFile)s \
logfile=/var/log/%(debFile)s.log

[ -r /etc/default/%(debFile)s ] && . /etc/default/%(debFile)s

test -x /usr/bin/twistd || exit 0
test -r $file || exit 0
test -r /usr/share/%(debFile)s/package-installed || exit 0


case "$1" in
start)
echo -n "Starting %(debFile)s: twistd"
start-stop-daemon --start --quiet --exec /usr/bin/twistd -- \
--pidfile=$pidfile \
--rundir=$rundir \
--%(twistdOption)s=$file \
--logfile=$logfile
echo "."
;;

stop)
echo -n "Stopping %(debFile)s: twistd"
start-stop-daemon --stop --quiet \
--pidfile $pidfile
echo "."
;;

restart)
$0 stop
$0 start
;;

force-reload)
$0 restart
;;

*)
echo "Usage: /etc/init.d/%(debFile)s {start|stop|restart|force-reload}" >&2
exit 1
;;
esac

exit 0
''' % vars())

debianDir.child('init.d').chmod(0755)

debianDir.child('postinst').setContent(
'''\
#!/bin/sh
update-rc.d %(debFile)s defaults >/dev/null
invoke-rc.d %(debFile)s start
#DEBHELPER#
''' % vars())

debianDir.child('prerm').setContent(
'''\
#!/bin/sh
invoke-rc.d %(debFile)s stop
#DEBHELPER#
''' % vars())

debianDir.child('postrm').setContent(
'''\
#!/bin/sh
if [ "$1" = purge ]; then
update-rc.d %(debFile)s remove >/dev/null
fi
#DEBHELPER#
''' % vars())

debianDir.child('changelog').setContent(
'''\
%(debFile)s (%(version)s) unstable; urgency=low

* Created by tap2deb

-- %(maintainer)s %(date)s

''' % vars())

debianDir.child('control').setContent(
'''\
Source: %(debFile)s
Section: net
Priority: extra
Maintainer: %(maintainer)s
Build-Depends-Indep: debhelper, python (>= 2.6.5-7)
Standards-Version: 3.8.4
XS-Python-Version: current

Package: %(debFile)s
Architecture: all
Depends: ${python:Depends}, python-twisted-core
XB-Python-Version: ${python:Versions}
Description: %(description)s
%(longDescription)s
''' % vars())

debianDir.child('copyright').setContent(
'''\
This package was auto-debianized by %(maintainer)s on
%(date)s

It was auto-generated by tap2deb

Upstream Author(s):
Moshe Zadka <[email protected]> -- tap2deb author

Copyright:

Insert copyright here.
''' % vars())

debianDir.child('dirs').setContent(
'''\
etc/init.d
etc/default
var/lib/%(debFile)s
usr/share/doc/%(debFile)s
usr/share/%(debFile)s
''' % vars())

debianDir.child('rules').setContent(
'''\
#!/usr/bin/make -f

export DH_COMPAT=5

build: build-stamp
build-stamp:
dh_testdir
touch build-stamp

clean:
dh_testdir
dh_testroot
rm -f build-stamp install-stamp
dh_clean

install: install-stamp
install-stamp: build-stamp
dh_testdir
dh_testroot
dh_clean -k
dh_installdirs

# Add here commands to install the package into debian/tmp.
cp %(baseTapFile)s debian/tmp/etc/
cp debian/init.d debian/tmp/etc/init.d/%(debFile)s
cp debian/default debian/tmp/etc/default/%(debFile)s
cp debian/copyright debian/tmp/usr/share/doc/%(debFile)s/
cp debian/README.Debian debian/tmp/usr/share/doc/%(debFile)s/
touch debian/tmp/usr/share/%(debFile)s/package-installed
touch install-stamp

binary-arch: build install

binary-indep: build install
dh_testdir
dh_testroot
dh_strip
dh_compress
dh_installchangelogs
dh_python2
dh_fixperms
dh_installdeb
dh_gencontrol
dh_md5sums
dh_builddeb

source diff:
@echo >&2 'source and diff are obsolete - use dpkg-source -b'; false

binary: binary-indep binary-arch
.PHONY: build clean binary-indep binary-arch binary install
''' % vars())

debianDir.child('rules').chmod(0755)

args = ["dpkg-buildpackage", "-rfakeroot"]
if config['unsigned']:
args = args + ['-uc', '-us']

# Build deb
job = subprocess.Popen(args, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT, cwd=buildDir.path)
stdout, _ = job.communicate()