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-rw-r--r--conf/collections.inc56
1 files changed, 56 insertions, 0 deletions
diff --git a/conf/collections.inc b/conf/collections.inc
new file mode 100644
index 0000000000..986a5f6424
--- /dev/null
+++ b/conf/collections.inc
@@ -0,0 +1,56 @@
+# 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.
+
+COLLECTIONS = "${@' '.join(d.getVar('BBPATH', 1).split(':'))}"
+
+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:
+ 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(collections, 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)
+
+ 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
+}