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# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
OpenEmbedded 'Make' implementations
Functions for reading OE files, building a dependency graph and
building a set of OE files while walking along the dependency graph.
This file is part of the OpenEmbedded (http://openembedded.org) build infrastructure.
"""
from oe import debug, digraph, data, fetch, fatal, error, note, event, parse
import copy, oe, 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_oefiles( path = os.getcwd() ):
"""Get list of default .oe files by reading out the current directory"""
contents = os.listdir(path)
oefiles = []
for f in contents:
(root, ext) = os.path.splitext(f)
if ext == ".oe":
oefiles.append(os.path.abspath(os.path.join(os.getcwd(),f)))
return oefiles
def find_oefiles( path ):
"""Find all the .oe files in a directory (uses find)"""
findcmd = 'find ' + path + ' -name *.oe | 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_oefile( oefile ):
"""Load and parse one .oe build file"""
if not cache in [None, '']:
cache_oefile = oefile.replace( '/', '_' )
try:
cache_mtime = os.stat( "%s/%s" % ( cache, cache_oefile ) )[8]
except OSError:
cache_mtime = 0
file_mtime = parse.cached_mtime(oefile)
if file_mtime > cache_mtime:
#print " : '%s' dirty. reparsing..." % oefile
pass
else:
#print " : '%s' clean. loading from cache..." % oefile
cache_data = unpickle_oe( cache_oefile )
if deps_clean(cache_data):
return cache_data, True
oepath = data.getVar('OEPATH', cfg)
safeoepath = data.getVar('OEPATH', cfg)
topdir = data.getVar('TOPDIR', cfg)
if not topdir:
topdir = os.path.abspath(os.getcwd())
# set topdir to here
data.setVar('TOPDIR', topdir, cfg)
oefile = os.path.abspath(oefile)
oefile_loc = os.path.abspath(os.path.dirname(oefile))
# expand tmpdir to include this topdir
data.setVar('TMPDIR', data.getVar('TMPDIR', cfg, 1) or "", cfg)
# add topdir to oepath
# oepath = "%s:%s" % (topdir, oepath)
# set topdir to location of .oe file
topdir = oefile_loc
#data.setVar('TOPDIR', topdir, cfg)
# add that topdir to oepath
oepath = "%s:%s" % (topdir, oepath)
# go there
oldpath = os.path.abspath(os.getcwd())
os.chdir(topdir)
data.setVar('OEPATH', oepath, cfg)
oe = copy.deepcopy(cfg)
try:
parse.handle(oefile, oe) # read .oe data
if not cache in [None, '']: pickle_oe( cache_oefile, oe) # write cache
os.chdir(oldpath)
return oe, False
finally:
os.chdir(oldpath)
data.setVar('OEPATH', safeoepath, cfg)
def pickle_oe( oefile, oe ):
p = pickle.Pickler( file( "%s/%s" % ( cache, oefile ), "wb" ), -1 )
p.dump( oe )
def unpickle_oe( oefile ):
p = pickle.Unpickler( file( "%s/%s" % ( cache, oefile ), "rb" ) )
oe = p.load()
funcstr = data.getVar('__functions__', oe)
if funcstr:
comp = compile(funcstr, "<pickled>", "exec")
exec comp in __builtins__
return oe
def collect_oefiles( progressCallback ):
"""Collect all available .oe build files"""
parsed, cached, skipped, masked = 0, 0, 0, 0
global cache
cache = oe.data.getVar( "CACHE", cfg, 1 )
if not cache in [None, '']:
print "NOTE: Using cache in '%s'" % cache
try:
os.stat( cache )
except OSError:
oe.mkdirhier( cache )
else: print "NOTE: Not using a cache. Set CACHE = <directory> to enable."
files = (data.getVar( "OEFILES", cfg, 1 ) or "").split()
data.setVar("OEFILES", " ".join(files), cfg)
if not len(files):
files = get_oefiles()
if not len(files):
oe.error("no files to build.")
newfiles = []
for f in files:
if os.path.isdir(f):
dirfiles = find_oefiles(f)
if dirfiles:
newfiles += dirfiles
continue
newfiles += glob.glob(f) or [ f ]
oemask = oe.data.getVar('OEMASK', cfg, 1) or ""
try:
oemask_compiled = re.compile(oemask)
except sre_constants.error:
oe.fatal("OEMASK is not a valid regular expression.")
for i in xrange( len( newfiles ) ):
f = newfiles[i]
if oemask and oemask_compiled.search(f):
oe.debug(1, "oemake: skipping %s" % f)
masked += 1
continue
progressCallback( i + 1, len( newfiles ), f )
debug(1, "oemake: parsing %s" % f)
# read a file's metadata
try:
pkgdata[f], fromCache = load_oefile(f)
if fromCache: cached += 1
else: parsed += 1
deps = None
if pkgdata[f] is not None:
# allow metadata files to add items to OEFILES
#data.update_data(pkgdata[f])
addoefiles = data.getVar('OEFILES', pkgdata[f]) or None
if addoefiles:
for aof in addoefiles.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:
oe.error("opening %s: %s" % (f, e))
pass
except oe.parse.SkipPackage:
skipped += 1
pass
except KeyboardInterrupt:
raise
except Exception, e:
oe.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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