classes/sstate: break out function to get sstate manifest filename

It is useful in a few different contexts to see which files have been
written out by an sstate task; break out a function that lets us get the
path to the manifest file easily.

(From OE-Core rev: 090196dd2d8f4306b34b239e78c39d37cc86034c)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/meta/lib/oe/sstatesig.py b/meta/lib/oe/sstatesig.py
index 9d6d7c42fc..cb46712eea 100644
--- a/meta/lib/oe/sstatesig.py
+++ b/meta/lib/oe/sstatesig.py
@@ -277,3 +277,15 @@ def find_siginfo(pn, taskname, taskhashlist, d):
         return filedates
 
 bb.siggen.find_siginfo = find_siginfo
+
+
+def sstate_get_manifest_filename(task, d):
+    """
+    Return the sstate manifest file path for a particular task.
+    Also returns the datastore that can be used to query related variables.
+    """
+    d2 = d.createCopy()
+    extrainf = d.getVarFlag("do_" + task, 'stamp-extra-info', True)
+    if extrainf:
+        d2.setVar("SSTATE_MANMACH", extrainf)
+    return (d2.expand("${SSTATE_MANFILEPREFIX}.%s" % task), d2)