base.bbclass: Move package metadata handling functions into their own class file

1 files changed, 82 insertions, 0 deletions

diff --git a/meta/classes/packagedata.bbclass b/meta/classes/packagedata.bbclass
new file mode 100644
index 0000000000..c9d64d6da2
--- /dev/null
+++ b/meta/classes/packagedata.bbclass
@@ -0,0 +1,82 @@
+def packaged(pkg, d):
+	import os, bb
+	return os.access(get_subpkgedata_fn(pkg, d) + '.packaged', os.R_OK)
+
+def read_pkgdatafile(fn):
+	pkgdata = {}
+
+	def decode(str):
+		import codecs
+		c = codecs.getdecoder("string_escape")
+		return c(str)[0]
+
+	import os
+	if os.access(fn, os.R_OK):
+		import re
+		f = file(fn, 'r')
+		lines = f.readlines()
+		f.close()
+		r = re.compile("([^:]+):\s*(.*)")
+		for l in lines:
+			m = r.match(l)
+			if m:
+				pkgdata[m.group(1)] = decode(m.group(2))
+
+	return pkgdata
+
+def get_subpkgedata_fn(pkg, d):
+	import bb, os
+	archs = bb.data.expand("${PACKAGE_ARCHS}", d).split(" ")
+	archs.reverse()
+	pkgdata = bb.data.expand('${TMPDIR}/pkgdata/', d)
+	targetdir = bb.data.expand('${TARGET_VENDOR}-${TARGET_OS}/runtime/', d)
+	for arch in archs:
+		fn = pkgdata + arch + targetdir + pkg
+		if os.path.exists(fn):
+			return fn
+	return bb.data.expand('${PKGDATA_DIR}/runtime/%s' % pkg, d)
+
+def has_subpkgdata(pkg, d):
+	import bb, os
+	return os.access(get_subpkgedata_fn(pkg, d), os.R_OK)
+
+def read_subpkgdata(pkg, d):
+	import bb
+	return read_pkgdatafile(get_subpkgedata_fn(pkg, d))
+
+def has_pkgdata(pn, d):
+	import bb, os
+	fn = bb.data.expand('${PKGDATA_DIR}/%s' % pn, d)
+	return os.access(fn, os.R_OK)
+
+def read_pkgdata(pn, d):
+	import bb
+	fn = bb.data.expand('${PKGDATA_DIR}/%s' % pn, d)
+	return read_pkgdatafile(fn)
+
+python read_subpackage_metadata () {
+	import bb
+	data = read_pkgdata(bb.data.getVar('PN', d, 1), d)
+
+	for key in data.keys():
+		bb.data.setVar(key, data[key], d)
+
+	for pkg in bb.data.getVar('PACKAGES', d, 1).split():
+		sdata = read_subpkgdata(pkg, d)
+		for key in sdata.keys():
+			bb.data.setVar(key, sdata[key], d)
+}
+
+
+#
+# Collapse FOO_pkg variables into FOO
+#
+def read_subpkgdata_dict(pkg, d):
+	import bb
+	ret = {}
+	subd = read_pkgdatafile(get_subpkgedata_fn(pkg, d))
+	for var in subd:
+		newvar = var.replace("_" + pkg, "")
+		ret[newvar] = subd[var]
+	return ret
+