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# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
BitBake 'Make' implementations
Functions for reading BB files, building a dependency graph and
building a set of BB files while walking along the dependency graph.
Copyright (C) 2003, 2004 Mickey Lauer
Copyright (C) 2003, 2004 Phil Blundell
Copyright (C) 2003, 2004 Chris Larson
This program 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 2 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, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA.
This file is part of the BitBake build tools.
"""
from bb import debug, digraph, data, fetch, fatal, error, note, event, parse
import copy, bb, re, sys, os, glob, sre_constants
try:
import cPickle as pickle
except ImportError:
import pickle
print "NOTE: Importing cPickle failed. Falling back to a very slow implementation."
pkgdata = {}
cfg = data.init()
cache = None
digits = "0123456789"
ascii_letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
mtime_cache = {}
def get_bbfiles( path = os.getcwd() ):
"""Get list of default .bb files by reading out the current directory"""
contents = os.listdir(path)
bbfiles = []
for f in contents:
(root, ext) = os.path.splitext(f)
if ext == ".bb":
bbfiles.append(os.path.abspath(os.path.join(os.getcwd(),f)))
return bbfiles
def find_bbfiles( path ):
"""Find all the .bb files in a directory (uses find)"""
findcmd = 'find ' + path + ' -name *.bb | grep -v SCCS/'
try:
finddata = os.popen(findcmd)
except OSError:
return []
return finddata.readlines()
def deps_clean(d):
depstr = data.getVar('__depends', d)
if depstr:
deps = depstr.split(" ")
for dep in deps:
(f,old_mtime_s) = dep.split("@")
old_mtime = int(old_mtime_s)
new_mtime = parse.cached_mtime(f)
if (new_mtime > old_mtime):
return False
return True
def load_bbfile( bbfile ):
"""Load and parse one .bb build file"""
if not cache in [None, '']:
cache_bbfile = bbfile.replace( '/', '_' )
try:
cache_mtime = os.stat( "%s/%s" % ( cache, cache_bbfile ) )[8]
except OSError:
cache_mtime = 0
file_mtime = parse.cached_mtime(bbfile)
if file_mtime > cache_mtime:
#print " : '%s' dirty. reparsing..." % bbfile
pass
else:
#print " : '%s' clean. loading from cache..." % bbfile
cache_data = unpickle_bb( cache_bbfile )
if deps_clean(cache_data):
return cache_data, True
bbpath = data.getVar('BBPATH', cfg)
safebbpath = data.getVar('BBPATH', cfg)
topdir = data.getVar('TOPDIR', cfg)
if not topdir:
topdir = os.path.abspath(os.getcwd())
# set topdir to here
data.setVar('TOPDIR', topdir, cfg)
bbfile = os.path.abspath(bbfile)
bbfile_loc = os.path.abspath(os.path.dirname(bbfile))
# expand tmpdir to include this topdir
data.setVar('TMPDIR', data.getVar('TMPDIR', cfg, 1) or "", cfg)
# add topdir to bbpath
# bbpath = "%s:%s" % (topdir, bbpath)
# set topdir to location of .bb file
topdir = bbfile_loc
#data.setVar('TOPDIR', topdir, cfg)
# add that topdir to bbpath
bbpath = "%s:%s" % (topdir, bbpath)
# go there
oldpath = os.path.abspath(os.getcwd())
os.chdir(topdir)
data.setVar('BBPATH', bbpath, cfg)
bb = copy.deepcopy(cfg)
try:
parse.handle(bbfile, bb) # read .bb data
if not cache in [None, '']: pickle_bb( cache_bbfile, bb) # write cache
os.chdir(oldpath)
return bb, False
finally:
os.chdir(oldpath)
data.setVar('BBPATH', safebbpath, cfg)
def pickle_bb( bbfile, bb ):
p = pickle.Pickler( file( "%s/%s" % ( cache, bbfile ), "wb" ), -1 )
p.dump( bb )
def unpickle_bb( bbfile ):
p = pickle.Unpickler( file( "%s/%s" % ( cache, bbfile ), "rb" ) )
bb = p.load()
funcstr = data.getVar('__functions__', bb)
if funcstr:
comp = compile(funcstr, "<pickled>", "exec")
exec comp in __builtins__
return bb
def collect_bbfiles( progressCallback ):
"""Collect all available .bb build files"""
parsed, cached, skipped, masked = 0, 0, 0, 0
global cache
cache = bb.data.getVar( "CACHE", cfg, 1 )
if not cache in [None, '']:
print "NOTE: Using cache in '%s'" % cache
try:
os.stat( cache )
except OSError:
bb.mkdirhier( cache )
else: print "NOTE: Not using a cache. Set CACHE = <directory> to enable."
files = (data.getVar( "BBFILES", cfg, 1 ) or "").split()
data.setVar("BBFILES", " ".join(files), cfg)
if not len(files):
files = get_bbfiles()
if not len(files):
bb.error("no files to build.")
newfiles = []
for f in files:
if os.path.isdir(f):
dirfiles = find_bbfiles(f)
if dirfiles:
newfiles += dirfiles
continue
newfiles += glob.glob(f) or [ f ]
bbmask = bb.data.getVar('BBMASK', cfg, 1) or ""
try:
bbmask_compiled = re.compile(bbmask)
except sre_constants.error:
bb.fatal("BBMASK is not a valid regular expression.")
for i in xrange( len( newfiles ) ):
f = newfiles[i]
if bbmask and bbmask_compiled.search(f):
bb.debug(1, "bbmake: skipping %s" % f)
masked += 1
continue
progressCallback( i + 1, len( newfiles ), f )
debug(1, "bbmake: parsing %s" % f)
# read a file's metadata
try:
pkgdata[f], fromCache = load_bbfile(f)
if fromCache: cached += 1
else: parsed += 1
deps = None
if pkgdata[f] is not None:
# allow metadata files to add items to BBFILES
#data.update_data(pkgdata[f])
addbbfiles = data.getVar('BBFILES', pkgdata[f]) or None
if addbbfiles:
for aof in addbbfiles.split():
if not files.count(aof):
if not os.path.isabs(aof):
aof = os.path.join(os.path.dirname(f),aof)
files.append(aof)
for var in pkgdata[f].keys():
if data.getVarFlag(var, "handler", pkgdata[f]) and data.getVar(var, pkgdata[f]):
event.register(data.getVar(var, pkgdata[f]))
except IOError, e:
bb.error("opening %s: %s" % (f, e))
pass
except bb.parse.SkipPackage:
skipped += 1
pass
except KeyboardInterrupt:
raise
except Exception, e:
bb.error("%s while parsing %s" % (e, f))
print "\rNOTE: Parsing finished. %d cached, %d parsed, %d skipped, %d masked." % ( cached, parsed, skipped, masked ),
def explode_version(s):
import string
r = []
alpha_regexp = re.compile('^([a-zA-Z]+)(.*)$')
numeric_regexp = re.compile('^(\d+)(.*)$')
while (s != ''):
if s[0] in digits:
m = numeric_regexp.match(s)
r.append(int(m.group(1)))
s = m.group(2)
continue
if s[0] in ascii_letters:
m = alpha_regexp.match(s)
r.append(m.group(1))
s = m.group(2)
continue
s = s[1:]
return r
def vercmp_part(a, b):
va = explode_version(a)
vb = explode_version(b)
while True:
if va == []:
ca = None
else:
ca = va.pop(0)
if vb == []:
cb = None
else:
cb = vb.pop(0)
if ca == None and cb == None:
return 0
if ca > cb:
return 1
if ca < cb:
return -1
def vercmp(ta, tb):
(va, ra) = ta
(vb, rb) = tb
r = vercmp_part(va, vb)
if (r == 0):
r = vercmp_part(ra, rb)
return r
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