From 5b80bfd7bffd4c20d80b7c70a7130529e9a755dd Mon Sep 17 00:00:00 2001
From: ToshikazuOhiwa <toshikazu_ohiwa@mail.toyota.co.jp>
Date: Mon, 30 Mar 2020 09:24:26 +0900
Subject: agl-basesystem

---
 .../recipes-core/volatile-binds/files/COPYING.MIT  | 17 +++++++
 .../volatile-binds/files/mount-copybind            | 56 ++++++++++++++++++++++
 .../volatile-binds/files/volatile-binds.service.in | 19 ++++++++
 3 files changed, 92 insertions(+)
 create mode 100644 external/poky/meta/recipes-core/volatile-binds/files/COPYING.MIT
 create mode 100755 external/poky/meta/recipes-core/volatile-binds/files/mount-copybind
 create mode 100644 external/poky/meta/recipes-core/volatile-binds/files/volatile-binds.service.in

(limited to 'external/poky/meta/recipes-core/volatile-binds/files')

diff --git a/external/poky/meta/recipes-core/volatile-binds/files/COPYING.MIT b/external/poky/meta/recipes-core/volatile-binds/files/COPYING.MIT
new file mode 100644
index 00000000..7e7d5741
--- /dev/null
+++ b/external/poky/meta/recipes-core/volatile-binds/files/COPYING.MIT
@@ -0,0 +1,17 @@
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/external/poky/meta/recipes-core/volatile-binds/files/mount-copybind b/external/poky/meta/recipes-core/volatile-binds/files/mount-copybind
new file mode 100755
index 00000000..fddf5200
--- /dev/null
+++ b/external/poky/meta/recipes-core/volatile-binds/files/mount-copybind
@@ -0,0 +1,56 @@
+#!/bin/sh
+#
+# Perform a bind mount, copying existing files as we do so to ensure the
+# overlaid path has the necessary content.
+
+if [ $# -lt 2 ]; then
+    echo >&2 "Usage: $0 spec mountpoint [OPTIONS]"
+    exit 1
+fi
+
+# e.g. /var/volatile/lib
+spec=$1
+
+# e.g. /var/lib
+mountpoint=$2
+
+if [ $# -gt 2 ]; then
+    options=$3
+else
+    options=
+fi
+
+[ -n "$options" ] && options=",$options"
+
+mkdir -p "${spec%/*}"
+
+if [ -d "$mountpoint" ]; then
+
+    if [ -d "$spec" ]; then
+        specdir_existed=yes
+    else
+        specdir_existed=no
+        mkdir "$spec"
+    fi
+
+    # Fast version of calculating `dirname ${spec}`/.`basename ${spec}`-work
+    overlay_workdir="${spec%/*}/.${spec##*/}-work"
+    mkdir "${overlay_workdir}"
+
+    # Try to mount using overlay, which is must faster than copying files.
+    # If that fails, fall back to slower copy.
+    if ! mount -t overlay overlay -olowerdir="$mountpoint",upperdir="$spec",workdir="$overlay_workdir" "$mountpoint" > /dev/null 2>&1; then
+
+        if [ "$specdir_existed" != "yes" ]; then
+            cp -pPR "$mountpoint"/. "$spec/"
+        fi
+
+        mount -o "bind$options" "$spec" "$mountpoint"
+    fi
+elif [ -f "$mountpoint" ]; then
+    if [ ! -f "$spec" ]; then
+        cp -pP "$mountpoint" "$spec"
+    fi
+
+    mount -o "bind$options" "$spec" "$mountpoint"
+fi
diff --git a/external/poky/meta/recipes-core/volatile-binds/files/volatile-binds.service.in b/external/poky/meta/recipes-core/volatile-binds/files/volatile-binds.service.in
new file mode 100644
index 00000000..b23355a7
--- /dev/null
+++ b/external/poky/meta/recipes-core/volatile-binds/files/volatile-binds.service.in
@@ -0,0 +1,19 @@
+[Unit]
+Description=Bind mount volatile @where@
+DefaultDependencies=false
+Before=local-fs.target
+RequiresMountsFor=@whatparent@ @whereparent@
+ConditionPathIsReadWrite=@whatparent@
+ConditionPathExists=@where@
+ConditionPathIsReadWrite=!@where@
+
+[Service]
+Type=oneshot
+RemainAfterExit=Yes
+StandardOutput=syslog
+TimeoutSec=0
+ExecStart=/sbin/mount-copybind @what@ @where@
+ExecStop=/bin/umount @where@
+
+[Install]
+WantedBy=local-fs.target
-- 
cgit 1.2.3-korg