"""
requires Python Image Library - http://www.pythonware.com/products/pil/
requires grep and diff - http://www.mingw.org/msys.shtml
requires command line cvs - http://tortoisecvs.sourceforge.net/

example release.cfg:
=========================
[auth]
USER=kichik
WIKI_PASSWORD=xxx

[version]
VERSION=2.10
VER_MAJOR=2
VER_MINOR=1
VER_REVISION=0
VER_BUILD=0

[cvs]
CVS="C:\Program Files\TortoiseCVS\cvs.exe" -z9
CVS_EXT="C:\Program Files\PuTTY\plink.exe" -2 -l "%u" "%h"

[compression]
TAR_BZ2=7zatarbz2.bat %s %s
ZIP="C:\Program Files\7-zip\7za.exe" a -tzip %s -mx9 -mfb=255 -mpass=4 %s

[rsh]
RSH="C:\Program Files\PuTTY\plink.exe" -2 -l kichik nsis.sourceforge.net

[wiki]
UPDATE_URL=http://nsis.sourceforge.net/Special:Simpleupdate?action=raw

[cvs2cl]
CVS2CL=cvs2cl.pl
CVS2CL_PERL="C:\Program Files\Perl\bin\perl.exe"
CVS2CL_OPTS=--FSF
=========================

7zatarbz2.bat:
=========================
@echo off
"C:\Program Files\7-zip\7za.exe" a -ttar %2.tar -r %2
"C:\Program Files\7-zip\7za.exe" a -tbzip2 %1 -mx9 -mpass=7 %2.tar
=========================

TODO
~~~~

 * Create release on SourceForge automatically
 * Edit update.php
 * http://en.wikipedia.org/w/index.php?title=Nullsoft_Scriptable_Install_System&action=edit
 * Update Freshmeat
 * Update BetaNews

"""

import os
import sys
import time
import Image, ImageFont, ImageDraw
from ConfigParser import ConfigParser
from ftplib import FTP
import time

### read config

cfg = ConfigParser()
cfg.read('release.cfg')

USER = cfg.get('auth', 'USER')
WIKI_PASSWORD = cfg.get('auth', 'WIKI_PASSWORD')

VERSION = cfg.get('version', 'VERSION')
VER_MAJOR = cfg.get('version', 'VER_MAJOR')
VER_MINOR = cfg.get('version', 'VER_MINOR')
VER_REVISION = cfg.get('version', 'VER_REVISION')
VER_BUILD = cfg.get('version', 'VER_BUILD')

CVS = cfg.get('cvs', 'CVS')
CVS_EXT = cfg.get('cvs', 'CVS_EXT')

TAR_BZ2 = cfg.get('compression', 'TAR_BZ2')
ZIP = cfg.get('compression', 'ZIP')

RSH = cfg.get('rsh', 'RSH')

PURGE_URL = cfg.get('wiki', 'PURGE_URL')
UPDATE_URL = cfg.get('wiki', 'UPDATE_URL')

CVS2CL = cfg.get('cvs2cl', 'CVS2CL')
CVS2CL_PERL = cfg.get('cvs2cl', 'CVS2CL_PERL')
CVS2CL_OPTS = cfg.get('cvs2cl', 'CVS2CL_OPTS')

### config env

os.environ['CVS_EXT'] = CVS_EXT
os.environ['CVSROOT'] = ':ext:%s@nsis.cvs.sourceforge.net:/cvsroot/nsis' % USER

CVS_TAG = 'v' + ''.join(VERSION.split('.'))

newverdir = 'nsis-%s-src' % VERSION
scons_line = 'scons -C %s VERSION=%s VER_MAJOR=%s VER_MINOR=%s VER_REVISION=%s VER_BUILD=%s ' \
						 % (newverdir, VERSION, VER_MAJOR, VER_MINOR, VER_REVISION, VER_BUILD)

### utility functions

def log(msg, log_dir = '.'):
	open('%s\\release-%s.log' % (log_dir, VERSION), 'a').write(msg + '\n')

def exit(log_dir = '.'):
	log('\nerror occurred, exiting', log_dir)
	sys.exit(3)

LOG_ERRORS  = 2
LOG_ALL     = 1
LOG_NOTHING = 0

def run(command, log_level, err, wanted_ret = 0, log_dir = '.'):
	log('\nrunning %s\n' % command, log_dir)

	if log_level == LOG_ERRORS:
		cmd = '%s 2>> %s\\release-%s.log' % (command, log_dir, VERSION)
	elif log_level == LOG_ALL:
		cmd = '%s >> %s\\release-%s.log 2>&1' % (command, log_dir, VERSION)
	elif log_level == LOG_NOTHING:
		cmd = command
	else:
		raise ValueError

	ret = os.system(cmd)

	# sleep because for some weird reason, running cvs.exe hugs
	# the release log for some time after os.system returns
	import time
	time.sleep(5)

	if ret != wanted_ret:
		print '*** ' + err
		log('*** ' + err, log_dir)
		exit(log_dir)

def confirm(question):
	print question
	if raw_input() != 'y':
		sys.exit(2)

### process functions

def Confirm():
	confirm('are you sure you want to release version %s?' % VERSION)
	confirm('did you update history.but?')

def StartLog():
	open('release-%s.log' % VERSION, 'w').write('releasing version %s at %s\n\n' % (VERSION, time.ctime()))

def RunTests():
	print 'running tests...'

	run(
		'scons -C .. test',
		LOG_ALL,
		'tests failed - see test.log for details'
	)

def CreateMenuImage():
	print 'creating images...'

	## create new header.gif for menu

	im = Image.new('RGB', (598, 45), '#000000')

	# copy background from header-notext.gif

	bim = Image.open(r'..\Menu\images\header-notext.gif')
	im.paste(bim)

	# draw new version number

	draw = ImageDraw.Draw(im)
	font = ImageFont.truetype('trebuc.ttf', 24)
	text = 'nullsoft scriptable install system %s' % VERSION
	draw.text((85, 7), text, font = font, fill = 'white')

	# save

	im = im.convert('P', palette = Image.ADAPTIVE)
	im.save(r'..\Menu\images\header.gif')

def CommitMenuImage():
	print 'committing header.gif...'

	run(
		'%s commit -m %s ..\\Menu\\images\\header.gif' % (CVS, VERSION),
		LOG_ALL,
		'failed committing header.gif'
	)

def TestInstaller():
	print 'testing installer...'

	os.mkdir('insttestscons')

	run(
		'scons -C .. VERSION=test PREFIX=%s\\insttestscons install dist-installer' % os.getcwd(),
		LOG_ALL,
		'installer creation failed'
	)

	run(
		'..\\nsis-test-setup.exe /S /D=%s\\insttest' % os.getcwd(),
		LOG_NOTHING,
		'installer failed'
	)

	run(
		'diff -r insttest insttestscons | grep -v uninst-nsis.exe',
		LOG_ALL,
		'scons and installer installations differ',
		1
	)

def Tag():
	print 'tagging...'

	run(
		'%s tag -R %s ..' % (CVS, CVS_TAG),
		LOG_ALL,
		'failed creating tag %s' % CVS_TAG
	)

def Export():
	print 'exporting a fresh copy...'

	run(
		'%s -z3 export -r %s -d %s NSIS' % (CVS, CVS_TAG, newverdir),
		LOG_ALL,
		'export failed'
	)

def CreateChangeLog():
	print 'generating ChangeLog...'

	global CVS2CL
	if not os.path.isfile(CVS2CL):
		import urllib
		CVS2CL = urllib.urlretrieve('http://www.red-bean.com/cvs2cl/cvs2cl.pl','cvs2cl.pl')[0]

	changelog = os.path.join(newverdir,'ChangeLog')

	os.chdir('..')
	run(
		'%s log  > Scripts\cvs.log' % CVS,
		LOG_ERRORS,
		'cvs log failed',
		log_dir = 'Scripts'
	)
	os.chdir('Scripts')

	run(
		'%s -x %s %s --show-tag %s --file %s --stdin < cvs.log' % (CVS2CL_PERL, CVS2CL, CVS2CL_OPTS, CVS_TAG, changelog),
		LOG_ALL,
		'changelog failed'
	)
	
	# Just in case the script is run twice or something
	try: os.remove(changelog+'.bak')
	except: pass

def CreateSourceTarball():
	print 'creating source tarball...'

	run(
		TAR_BZ2 % (newverdir + '.tar.bz2', newverdir),
		LOG_ALL,
		'source tarball creation failed'
	)

def BuildRelease():
	print 'creating distribution files...'

	run(
		scons_line + 'dist',
		LOG_ALL,
		'creation of distribution files failed'
	)

def CreateSpecialBuilds():
	def create_special_build(name, option):
		print 'creating %s special build...' % name

		os.mkdir(name)

		run(
			scons_line + 'PREFIX=%s\\%s %s install-compiler install-stubs' % (os.getcwd(), name, option),
			LOG_ALL,
			'creation of %s special build failed' % name
		)

		os.chdir(name)
		run(
			ZIP % ('..\\nsis-%s-%s.zip' % (VERSION, name), '*'),
			LOG_ALL,
			'copmression of %s special build failed' % name,
			log_dir = '..'
		)
		os.chdir('..')

	create_special_build('strlen_8192', 'NSIS_MAX_STRLEN=8192')
	create_special_build('log', 'NSIS_CONFIG_LOG=yes')

def UploadFiles():
	print 'uploading files to SourceForge...'

	def upload(ftp, file):
		print '  uploading %s...' % file
		ftp.storbinary('STOR /incoming/%s' % file.split('\\')[-1], open(file, 'rb'))

	ftp = FTP('upload.sourceforge.net')
	ftp.login()

	upload(ftp, newverdir + '.tar.bz2')
	upload(ftp, newverdir + '\\nsis-%s-setup.exe' % VERSION)
	upload(ftp, newverdir + '\\nsis-%s.zip' % VERSION)
	upload(ftp, 'nsis-%s-log.zip' % VERSION)
	upload(ftp, 'nsis-%s-strlen_8192.zip' % VERSION)

	ftp.quit()

def ManualRelease():
	print 'release url:'
	print '  http://sourceforge.net/project/admin/qrs.php?package_id=0&group_id=22049'
	print

	sys.stdout.write('What\'s the SF release id of the new version? ')
	release_id = raw_input()

	return release_id

def UpdateWiki(release_id):
	print 'updating wiki...'

	def update_wiki_page(page, data, summary):
		print '  updating `%s` to `%s`' % (page, data)

		import urllib

		post =  'su_user=' + urllib.quote(USER)
		post += '&su_password=' + urllib.quote(WIKI_PASSWORD)
		post += '&su_title=' + urllib.quote(page)
		post += '&su_data=' + urllib.quote(data)
		post += '&su_summary=' + urllib.quote(summary)
		
		if urllib.urlopen(UPDATE_URL, post).read() != 'success':
			log('*** failed updating `%s` wiki page' % page)
			print '	*** failed updating `%s` wiki page' % page

	update_wiki_page('Template:NSISVersion', VERSION, 'new version')
	update_wiki_page('Template:NSISReleaseDate', time.strftime('%B %d, %Y'), 'new version')
	update_wiki_page('Template:NSISReleaseID', release_id, 'new version')

def UpdateChangeLog():
	run(
		'%s touch /home/groups/n/ns/nsis/bin/cl.timestamp' % RSH,
		LOG_ALL,
		'change log start time modification failed'
	)

def ToDo():
	print 'automatic phase done\n'
	print """
 * Edit update.php
 * Post news item
 * http://en.wikipedia.org/w/index.php?title=Nullsoft_Scriptable_Install_System&action=edit
 * Update Freshmeat
 * Update BetaNews
	"""

def CloseLog():
	log('done')

### ok, let's go!

Confirm()
StartLog()
RunTests()
CreateMenuImage()
CommitMenuImage()
TestInstaller()
Tag()
Export()
CreateChangeLog()
CreateSourceTarball()
BuildRelease()
CreateSpecialBuilds()
UploadFiles()
release_id = ManualRelease()
UpdateWiki(release_id)
UpdateChangeLog()
ToDo()
CloseLog()