[PATCH v3] rootfs-postcommands: put image testdata under sstate control

["André Draszik" <git@andred.net>]

From: André Draszik <andre.draszik@jci.com>

The testdata.json is being written to DEPLOY_DIR_IMAGE directly,
thus bypassing sstate, which results in an ever growing list
of files.

Write them to IMGDEPLOYDIR instead, so as to benefit from the
automatic management via sstate.

Signed-off-by: André Draszik <andre.draszik@jci.com>

---
v3: rebased
v2: fix typo in subject line
---
 meta/classes/rootfs-postcommands.bbclass | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/meta/classes/rootfs-postcommands.bbclass b/meta/classes/rootfs-postcommands.bbclass
index ca690a6e59..e816824f28 100644
--- a/meta/classes/rootfs-postcommands.bbclass
+++ b/meta/classes/rootfs-postcommands.bbclass
@@ -316,17 +316,18 @@ rootfs_sysroot_relativelinks () {
 python write_image_test_data() {
     from oe.data import export2json
 
-    testdata = "%s/%s.testdata.json" % (d.getVar('DEPLOY_DIR_IMAGE'), d.getVar('IMAGE_NAME'))
-    testdata_link = "%s/%s.testdata.json" % (d.getVar('DEPLOY_DIR_IMAGE'), d.getVar('IMAGE_LINK_NAME'))
+    deploy_dir = d.getVar('IMGDEPLOYDIR')
+    link_name = d.getVar('IMAGE_LINK_NAME')
+    testdata_name = os.path.join(deploy_dir, "%s.testdata.json" % d.getVar('IMAGE_NAME'))
 
-    bb.utils.mkdirhier(os.path.dirname(testdata))
     searchString = "%s/"%(d.getVar("TOPDIR")).replace("//","/")
-    export2json(d, testdata,searchString=searchString,replaceString="")
+    export2json(d, testdata_name, searchString=searchString, replaceString="")
 
-    if testdata_link != testdata:
+    if os.path.exists(testdata_name):
+        testdata_link = os.path.join(deploy_dir, "%s.testdata.json" % link_name)
         if os.path.lexists(testdata_link):
-           os.remove(testdata_link)
-        os.symlink(os.path.basename(testdata), testdata_link)
+            os.remove(testdata_link)
+        os.symlink(os.path.basename(testdata_name), testdata_link)
 }
 write_image_test_data[vardepsexclude] += "TOPDIR"
 
-- 
2.18.0