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
+