unison/waf

#! /usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2005 (ita)

import os, sys
if 'PSYCOWAF' in os.environ:
	try:
		import psyco
		psyco.full()
	except:
		pass

VERSION="1.1.1"
REVISION="1420549696"
INSTALL=sys.platform=='win32' and 'c:/temp' or '/usr/local'
cwd = os.getcwd()

def decodeAscii85(s):
	out=[]
	app=out.append
	s=''.join(s.split()).replace('z','!!!!!')
	p1,p2=divmod(len(s), 5)
	stop=5*p1
	p3,p4=s[0:stop],s[stop:]
	for i in range(p1):
		off=i*5
		a=ord(p3[off])-33
		b=ord(p3[off+1])-33
		c=ord(p3[off+2])-33
		d=ord(p3[off+3])-33
		e=ord(p3[off+4])-33
		num=(52200625L*a)+(614125*b)+(7225*c)+(85*d)+e
		x,p=divmod(num,256)
		x,o=divmod(x,256)
		m,n=divmod(x,256)
		app(chr(m)+chr(n)+chr(o)+chr(p))
	if p2:
		while len(p4)<5: p4=p4+'!'
		a=ord(p4[0])-33
		b=ord(p4[1])-33
		c=ord(p4[2])-33
		d=ord(p4[3])-33
		e=ord(p4[4])-33
		num=(52200625L*a)+(614125*b)+(7225*c)+(85*d)+e
		x,p=divmod(num,256)
		x,o=divmod(x,256)
		m,n=divmod(x, 256)
		if p2==2: app(chr(m))
		elif p2==3: app(chr(m)+chr(n))
		elif p2==4: app(chr(m)+chr(n)+chr(o))
	return ''.join(out)

# wafdir is needed to parse the command-line arguments or print the version number
wafdir=None # SPECIAL LINE

def uncompress_wafdir(newdir):
	file = open(sys.argv[0], 'rb')
	while 1:
		line = file.readline()
		if not line:
			print "This is a stripped-down waf, there is no wafadmin directory available"
			print "Please set WAFDIR to a directory containing a directory named wafadmin"
			print "Or use the full waf version available freely at http://freehackers.org/~tnagy/bksys.html"
			print "\033[91mNo wafadmin: cannot execute anything (error)\033[0m"
			sys.exit(1)
		line=line.rstrip()
		if line=='# ===>BEGIN WOOF<===':
			cnt = file.readline()
			if not cnt:
				print "Corrupted waf (1)"
				sys.exit(1)

			line = file.readline().rstrip()
			if line!='# ===>END WOOF<===':
				print "Corrupted waf (2)"
				sys.exit(1)
			break
	if not cnt:
		print "Corrupted waf (3)"
		sys.exit(1)

	cnt = decodeAscii85(cnt[1:])

	# create wafadmin
	import shutil
	try: shutil.rmtree(newdir)
	except OSError: pass
	try: os.makedirs(newdir)
	except OSError:
		print "Could uncompress waf-local into %s"%newdir
		print "Please install waf system-wide or move waf in a writeable directory"
		sys.exit(1)

	os.chdir(newdir)
	file = open('wafadmin.tar.bz2', 'wb')
	file.write(cnt)
	file.close()

	# now we have the tar file to open
	import tarfile
	tar = tarfile.open('wafadmin.tar.bz2')
	for tarinfo in tar:
		tar.extract(tarinfo)
	tar.close()

	# cleanup the tarfile and chdir to the previous directory
	os.chmod('wafadmin', 0755)
	os.chmod('wafadmin'+os.sep+'Tools', 0755)
	os.unlink('wafadmin.tar.bz2')
	os.chdir(cwd)

	global wafdir
	wafdir = newdir

def try_wafdir(dir):
	global wafdir
	if wafdir: return
	try:
		os.stat(os.path.join(dir, 'wafadmin'))
		wafdir = os.path.abspath(dir)
	except OSError:
		pass

def find_wafadmin():
	global wafdir
	name = sys.argv[0]

	# wafadmin may be in $WAFDIR (developers)
	if 'WAFDIR' in os.environ:
		try_wafdir(os.environ['WAFDIR'])
		if wafdir: return

	# waf-light is a special beast
	if name[-5:] == 'light':
		try_wafdir(os.path.dirname(os.path.abspath(name)))
		if wafdir: return
		print "\033[91mwaf-light in use, wafadmin not found -> export WAFDIR=/folder\033[0m"
		sys.exit(1)

	if not wafdir:
		dir = "/lib/waf-%s-%s/" % (VERSION, REVISION)
		for i in [INSTALL, '/usr', '/usr/local', '/opt']:
			try_wafdir(i+dir)
			if wafdir: return

	# remove $HOME/.waf-version if asked to
	if wafdir:
		if "--nocache" in sys.argv:
			import shutil
			print "removing the local wafdir", wafdir
			try: shutil.rmtree(wafdir)
			except OSError: pass
		try: os.stat(wafdir)
		except OSError: wafdir=None

	if wafdir: return

	# look in the directory containing waf
	if sys.platform == 'win32': s='waf-%s-%s'
	else: s='.waf-%s-%s'
	dir = os.path.join(os.path.dirname(os.path.abspath(name)), s % (VERSION, REVISION))
	try_wafdir(dir)
	if wafdir: return

	# not found, uncompress
	wafdir = dir
	uncompress_wafdir(dir)

# run the test
find_wafadmin()
if "-vv" in sys.argv: print "wafdir is ", wafdir

# Update sys.path and import our modules
wafadmindir = os.path.join(wafdir, 'wafadmin')
tooldir = os.path.join(wafadmindir, 'Tools')
sys.path = [wafadmindir, tooldir] + sys.path

import Options, Params, Utils
from Params import fatal, warning

# Set the directory containing the tools
Params.g_tooldir = [tooldir]
Params.g_cwd_launch = cwd

if Params.g_version != VERSION:
	fatal('version mismatch waf %s <-> wafadmin %s (wafdir %s)' % (VERSION, Params.g_version, wafdir))

# some command-line options can be processed immediately
if '--version' in sys.argv:
	opt_obj = Options.Handler()
	opt_obj.parse_args()
	sys.exit(0)

# now find the wscript file
msg1 = 'Waf: *** Nothing to do! Please run waf from a directory containing a file named "wscript"'

# Some people want to configure their projects gcc-style:
# mkdir build && cd build && ../waf configure && ../waf
# check that this is really what is wanted
build_dir_override = None
candidate = None

lst = os.listdir(cwd)
xml = 0
#check if a wscript or a wscript_xml file is in current directory
if (not 'wscript' in lst) and (not 'wscript_xml' in lst):
	if 'configure' in sys.argv:
		#set the build directory with the current directory
		build_dir_override = cwd
	if 'wscript_build' in lst:
		#try to find the wscript root
		candidate = cwd
else:
	#wscript or wscript_xml is in current directory, use this directory as candidate
	candidate = cwd

try:
	#check the following dirs for wscript or wscript_xml
	search_for_candidate = True
	if not candidate:
		#check first the calldir if there is wscript or wscript_xml
		#for example: /usr/src/configure the calldir would be /usr/src
		calldir = os.path.abspath(os.path.dirname(sys.argv[0]))
		lst_calldir = os.listdir(calldir)
		if 'wscript'       in lst_calldir:
			candidate = calldir
			search_for_candidate = False
		if 'wscript_xml'   in lst_calldir:
			candidate = calldir
			xml = 1
			search_for_candidate = False
	if "--make-waf" in sys.argv and candidate:
		search_for_candidate = False

	#check all directories above current dir for wscript or wscript_xml if still not found
	while search_for_candidate:
		if len(cwd) <= 3:
			break # stop at / or c:
		dirlst = os.listdir(cwd)
		if 'wscript' in dirlst:
			candidate = cwd
			xml = 0
		if 'wscript_xml' in dirlst:
			candidate = cwd
			xml = 1
			break
		if 'configure' in sys.argv and candidate:
			break
		if Params.g_lockfile in dirlst:
			break
		cwd = cwd[:cwd.rfind(os.sep)] # climb up
except:
	fatal(msg1)

if not candidate:
	# check if the user only wanted to display the help
	if '-h' in sys.argv or '--help' in sys.argv:
		warning('No wscript file found: the help message may be incomplete')
		opt_obj = Options.Handler()
		opt_obj.parse_args()
		sys.exit(0)
	else:
		fatal(msg1)

# We have found wscript, but there is no guarantee that it is valid
os.chdir(candidate)

# xml -> jump to the parser
if xml:
	from XMLScripting import compile
	compile(candidate+os.sep+'wscript_xml')
else:
	# define the main module containing the functions init, shutdown, ..
	Utils.set_main_module(os.path.join(candidate, 'wscript'))

if build_dir_override:
	try:
		# test if user has set the blddir in wscript.
		blddir = Utils.g_module.blddir
		msg = 'Overriding build directory %s with %s' % (blddir, build_dir_override)
		Params.niceprint(msg, 'WARNING', 'waf')
	except:
		pass
	Utils.g_module.blddir = build_dir_override

# fetch the custom command-line options recursively and in a procedural way
opt_obj = Options.Handler()
opt_obj.sub_options('') # will look in wscript
opt_obj.parse_args()

# use the parser results
if Params.g_commands['dist']:
	# try to use the user-defined dist function first, fallback to the waf scheme
	try:
		Utils.g_module.dist()
		sys.exit(0)
	except AttributeError:
		pass
	try: appname = Utils.g_module.APPNAME
	except: appname = 'noname'

	try:
		get_version = Utils.g_module.get_version
	except AttributeError:
		try:
			version = Utils.g_module.VERSION
		except AttributeError:
			version = '1.0'
	else:
		version = get_version()

	from Scripting import Dist
	Dist(appname, version)
	sys.exit(0)
elif Params.g_commands['distclean']:
	# try to use the user-defined distclean first, fallback to the waf scheme
	try:
		Utils.g_module.distclean()
		sys.exit(0)
	except AttributeError:
		pass
	from Scripting import DistClean
	DistClean()
	sys.exit(0)

try: Utils.g_module.init()
except AttributeError: pass

import Scripting
try: Scripting.Main()
except KeyboardInterrupt: Params.fatal('build interrupted')
#import hotshot
#prof=hotshot.Profile("/tmp/proftest.txt")
#prof.runcall(Scripting.Main)
#prof.close()
# ===>BEGIN WOOF<===
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# ===>END WOOF<===