[Subtree] Removing import-layers directory

As part of the move to subtrees, need to bring all the import layers
content to the top level.

Change-Id: I4a163d10898cbc6e11c27f776f60e1a470049d8f
Signed-off-by: Dave Cobbley <david.j.cobbley@linux.intel.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/poky/meta/classes/rootfsdebugfiles.bbclass b/poky/meta/classes/rootfsdebugfiles.bbclass
new file mode 100644
index 000000000..e2ba4e364
--- /dev/null
+++ b/poky/meta/classes/rootfsdebugfiles.bbclass
@@ -0,0 +1,41 @@
+# This class installs additional files found on the build host
+# directly into the rootfs.
+#
+# One use case is to install a constant ssh host key in
+# an image that gets created for just one machine. This
+# solves two issues:
+# - host key generation on the device can stall when the
+#   kernel has not gathered enough entropy yet (seen in practice
+#   under qemu)
+# - ssh complains by default when the host key changes
+#
+# For dropbear, with the ssh host key store along side the local.conf:
+# 1. Extend local.conf:
+#    INHERIT += "rootfsdebugfiles"
+#    ROOTFS_DEBUG_FILES += "${TOPDIR}/conf/dropbear_rsa_host_key ${IMAGE_ROOTFS}/etc/dropbear/dropbear_rsa_host_key ;"
+# 2. Boot the image once, copy the dropbear_rsa_host_key from
+#    the device into your build conf directory.
+# 3. A optional parameter can be used to set file mode
+#    of the copied target, for instance:
+#    ROOTFS_DEBUG_FILES += "${TOPDIR}/conf/dropbear_rsa_host_key ${IMAGE_ROOTFS}/etc/dropbear/dropbear_rsa_host_key 0600;"
+#    in case they might be required to have a specific mode. (Shoundn't be too open, for example)
+#
+# Do not use for production images! It bypasses several
+# core build mechanisms (updating the image when one
+# of the files changes, license tracking in the image
+# manifest, ...).
+
+ROOTFS_DEBUG_FILES ?= ""
+ROOTFS_DEBUG_FILES[doc] = "Lists additional files or directories to be installed with 'cp -a' in the format 'source1 target1;source2 target2;...'"
+
+ROOTFS_POSTPROCESS_COMMAND += "rootfs_debug_files ;"
+rootfs_debug_files () {
+   #!/bin/sh -e
+   echo "${ROOTFS_DEBUG_FILES}" | sed -e 's/;/\n/g' | while read source target mode; do
+      if [ -e "$source" ]; then
+         mkdir -p $(dirname $target)
+         cp -a $source $target
+         [ -n "$mode" ] && chmod $mode $target
+      fi
+   done
+}