files: rootfs-postcommands: move helper commands to script

OverlayFS systemd helper unit might require more pre-processing
commands. It gets more complicated to embed them in a unit file, because
systemd shell subset is limited and might require additional escaping.
Move the command to a separate script, thus simplifying systemd unit.

(From OE-Core rev: 86a457016e7f3fc7acacf86cd87f5d8d882132dd)

Signed-off-by: Vyacheslav Yurkov <v.yurkov@precitec.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 9 insertions, 2 deletions

diff --git a/meta/files/overlayfs-create-dirs.service.in b/meta/files/overlayfs-create-dirs.service.in
index 61b2b9321b..c949a6dc73 100644
--- a/meta/files/overlayfs-create-dirs.service.in
+++ b/meta/files/overlayfs-create-dirs.service.in
@@ -6,8 +6,7 @@ DefaultDependencies=no
 
 [Service]
 Type=oneshot
-ExecStart=mkdir -p {DATA_MOUNT_POINT}/upper{LOWERDIR}
-ExecStart=mkdir -p {DATA_MOUNT_POINT}/workdir{LOWERDIR}
+ExecStart=/usr/sbin/overlayfs-create-dirs.sh {LOWERDIR} {DATA_MOUNT_POINT}
 RemainAfterExit=true
 StandardOutput=journal
 
diff --git a/meta/files/overlayfs-create-dirs.sh b/meta/files/overlayfs-create-dirs.sh
new file mode 100644
index 0000000000..06c7587a6b
--- /dev/null
+++ b/meta/files/overlayfs-create-dirs.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+# This script is intended to be used sorely by overlayfs-create-dirs.service
+# Usage: overlayfs-create-dirs.sh <LOWERDIR> <DATA_MOUNT_POINT>
+
+lowerdir=$1
+datamountpoint=$2
+mkdir -p ${datamountpoint}/upper${lowerdir}
+mkdir -p ${datamountpoint}/workdir${lowerdir}