Add classes

- archiver_stm32mp: help to generate archiver with sdk
- extlinuxconf-stm32mp: help to generate u-boot extlinux.conf
- flashlayout-stm32mp: help to generate layer for ST flasher
- images_types-stubi: help to customize nand image
- st-partitions-image: rules to clean images contents

Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>

classes/archiver_stm32mp_clean.bbclass

@@ -0,0 +1,40 @@
+python archiver_clean_tarball() {
+    from os import listdir
+    import tarfile
+    import shutil, tempfile
+    import os
+
+    ar_outdir = d.getVar('ARCHIVER_OUTDIR')
+    #get tarball name
+    tarball_name = [f for f in listdir(ar_outdir) if f.endswith("tar.gz")]
+    tmpdir = tempfile.mkdtemp(dir=d.getVar('ARCHIVER_WORKDIR'))
+    if tarball_name and tarball_name[0] and len(tarball_name[0]) > 0:
+        tar = tarfile.open(os.path.join(ar_outdir,tarball_name[0]))
+        tar.extractall(path=tmpdir)
+        tar.close()
+        dirs_list = [f for f in listdir(tmpdir) if os.path.isdir(os.path.join(tmpdir, f))]
+        if len(dirs_list) == 1:
+            if os.path.exists(os.path.join(tmpdir,dirs_list[0],"git", ".git")):
+                src_origin = os.path.join(tmpdir,dirs_list[0], '.')
+                shutil.rmtree(os.path.join(tmpdir,dirs_list[0],"git", ".git"))
+                os.remove(os.path.join(ar_outdir,tarball_name[0]))
+                subdirs_list = [f for f in listdir(os.path.join(tmpdir,dirs_list[0])) if os.path.isdir(os.path.join(tmpdir,dirs_list[0], f))]
+                if len(subdirs_list) == 1:
+                    src_origin = os.path.join(tmpdir,dirs_list[0],subdirs_list[0])
+                create_tarball(d, src_origin, '', ar_outdir)
+}
+do_ar_original[postfuncs] =+ "archiver_clean_tarball"
+
+ARCHIVER_README = "README.HOW_TO.txt"
+archiver_git_uri() {
+    ret=`echo "${SRC_URI}" | grep branch | wc -l`
+    if [ $ret -gt 0 ]; then
+        BRANCH=`echo "${SRC_URI}" | sed "s|.*branch=\([^ ;]*\).*|\1|" `
+    else
+        BRANCH=master
+    fi
+
+    sed -i -e "s|##GIT_BRANCH##|$BRANCH|g" -e "s|##GIT_SRCREV##|${SRCREV}|g" ${ARCHIVER_OUTDIR}/${ARCHIVER_README}
+}
+do_ar_original[postfuncs] =+ "archiver_git_uri"
+