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# Take a list of directories in COLLECTIONS, in priority order (highest to
# lowest), and use those to populate BBFILES, BBFILE_COLLECTIONS,
# BBFILE_PATTERN_*, and BBFILE_PRIORITY_*. By default, COLLECTIONS is
# prepopulated with the locations the user specified in their BBPATH.
# Note that it will not overwrite existing BBFILES or BBFILE_* variables, so
# you'll need to remove those from your config in order to use this.
#
# Specifying an archive in COLLECTIONS is also supported. Any archives of a
# supported format will be unpacked into COLLECTIONS_UNPACKDIR and used from
# there.
COLLECTIONS = "${@' '.join(d.getVar('BBPATH', 1).split(':'))}"
COLLECTIONS_UNPACKDIR = "${TMPDIR}/collections"
def collection_unpack(collection, name, d):
""" Unpack a collection archive and return the path to it. """
import bb
import os
from md5 import md5
handlers = {
("tar"): "tar x --no-same-owner -f %s",
("tar.gz", "tgz", "tar.Z"): "tar xz --no-same-owner -f %s",
("tar.bz2", "tbz", "tbz2"): "tar xj --no-same-owner -f %s",
("zip", "jar"): "unzip -q -o %s",
}
outpath = os.path.join(d.getVar("COLLECTIONS_UNPACKDIR", 1), name)
try:
collectiondata = open(collection, "r").read()
except IOError:
bb.fatal("Unable to open %s to calculate md5 sum" % collection)
md5obj = md5()
md5obj.update(collectiondata)
md5sum = md5obj.hexdigest()
md5file = os.path.join(outpath, "md5")
if os.path.exists(md5file):
try:
oldmd5sum = open(md5file).read()
except IOError:
pass
else:
if oldmd5sum == md5sum:
bb.debug(1, "Using existing %s for collection %s" % (outpath, name))
return outpath
bb.note("Removing old unpacked collection at %s" % outpath)
os.system("rm -rf %s" % outpath)
try:
cmd = (cmd for (exts, cmd) in handlers.iteritems()
for e in exts
if collection.endswith(e)).next()
cmd = "cd %s && PATH=\"%s\" %s" % (outpath, d.getVar("PATH", 1), cmd)
except StopIteration:
bb.fatal("Unable to find unpack handler for %s" % collection)
if not os.path.isdir(outpath):
os.makedirs(outpath)
bb.note("Unpacking %s to %s/" % (collection, outpath))
ret = os.system(cmd % collection)
if ret != 0:
bb.fatal("Unable to unpack %s" % collection)
md5out = open(md5file, "w")
md5out.write(md5sum)
md5out.close()
return outpath
def collections_setup(d):
""" Populate collection and bbfiles metadata from the COLLECTIONS var. """
import bb
import os
from itertools import izip, chain
from glob import glob
def setifunset(k, v):
if d.getVar(k, 0) is None:
d.setVar(k, v)
collections = d.getVar("COLLECTIONS", 1)
if not collections:
return
globbed = (glob(path) for path in collections.split())
collections = list(chain(*globbed))
collectionmap = {}
namemap = {}
for collection in collections:
if collection.endswith(os.sep):
collection = collection[:-1]
basename = os.path.basename(collection).split(os.path.extsep)[0]
if namemap.get(basename):
basename = "%s-%s" % (basename, hash(collection))
namemap[basename] = collection
collectionmap[collection] = basename
for (collection, priority) in izip(collectionmap, xrange(len(collections), 0, -1)):
if not os.path.exists(collection):
bb.fatal("Collection %s does not exist" % collection)
name = collectionmap[collection]
if not name:
bb.fatal("Unable to determine collection name for %s" % collection)
if not os.path.isdir(collection):
del collectionmap[collection]
unpacked = collection_unpack(collection, name, d)
if unpacked:
collection = unpacked
collectionmap[collection] = name
else:
bb.fatal("Unable to unpack collection %s" % collection)
setifunset("BBFILE_PATTERN_%s" % name, "^%s/" % collection)
setifunset("BBFILE_PRIORITY_%s" % name, str(priority))
setifunset("BBFILE_COLLECTIONS", " ".join(collectionmap.values()))
setifunset("BBFILES", " ".join(collectionmap.keys()))
addhandler collections_eh
python collections_eh () {
from bb.event import getName
if getName(e) == "ConfigParsed":
collections_setup(e.data)
return NotHandled
}
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