[arch-projects] [INITSCRIPTS][PATCH 1/2] arch-binfmt: move api filesytem mounting from rc.sysinit

[Sébastien Luttringer]

this will avoid filesytem to be mounted at every startup if not binfmt is used

Signed-off-by: Sébastien Luttringer <seblu at seblu.net>
---
 arch-binfmt |   31 ++++++++++++++++++++-----------
 rc.sysinit  |    4 +---
 2 files changed, 21 insertions(+), 14 deletions(-)

diff --git a/arch-binfmt b/arch-binfmt
index 6931843..91468ef 100755
--- a/arch-binfmt
+++ b/arch-binfmt
@@ -7,20 +7,29 @@
 
 shopt -s nullglob
 
-declare -a binfmt_d=(
-	/usr/lib/binfmt.d/*.conf
-	/etc/binfmt.d/*.conf
-	/run/binfmt.d/*.conf
-)
-declare -A fragments
+declare -a binfmt_d
+# files given has argv supersede config files
+if (( $# > 0 )); then
+	for arg; do [[ -r "$arg" ]] && binfmt_d+=("$arg"); done
+else
+	binfmt_d=(
+		/usr/lib/binfmt.d/*.conf
+		/etc/binfmt.d/*.conf
+		/run/binfmt.d/*.conf
+	)
+fi
+
+# check there is file to load
+(( ${#binfmt_d[@]} > 0 )) || exit 1
 
-# check binfmt_misc filesystem is mounted
+# mount binfmt_misc if api filesystem is missing
 mountpoint -q /proc/sys/fs/binfmt_misc ||
-	{ echo "/proc/sys/fs/binfmt_misc is not mounted"; exit 1;}
+	mount -t binfmt_misc binfmt /proc/sys/fs/binfmt_misc
 
-# files declared later in the sysctl_d array will override earlier
-# Example: `/etc/sysctl.d/foo.conf' supersedes `/usr/lib/sysctl.d/foo.conf'.
-for path in "${@:-${binfmt_d[@]}}"; do
+# files declared later in the binfmt_d array will override earlier
+# Example: `/etc/binfmt.d/foo.conf' supersedes `/usr/lib/binfmt.d/foo.conf'.
+declare -A fragments
+for path in "${binfmt_d[@]}"; do
 	[[ -f $path ]] && fragments[${path##*/}]=$path
 done
 
diff --git a/rc.sysinit b/rc.sysinit
index 9880995..ff0b6d2 100755
--- a/rc.sysinit
+++ b/rc.sysinit
@@ -12,10 +12,8 @@ printhl "${C_H2}http://www.archlinux.org"
 printsep
 
 # mount the api filesystems
-# /proc, /proc/sys/fs/binfmt_misc, /sys, /run, /dev, /run/lock, /dev/pts, /dev/shm
+# /proc, /sys, /run, /dev, /run/lock, /dev/pts, /dev/shm
 mountpoint -q /proc    || mount -t proc proc /proc -o nosuid,noexec,nodev
-mountpoint -q /proc/sys/fs/binfmt_misc ||
-	mount -t binfmt_misc binfmt /proc/sys/fs/binfmt_misc
 mountpoint -q /sys     || mount -t sysfs sys /sys -o nosuid,noexec,nodev
 mountpoint -q /run     || mount -t tmpfs run /run -o mode=0755,nosuid,nodev
 mountpoint -q /dev     || mount -t devtmpfs dev /dev -o mode=0755,nosuid
-- 
Sebastien "Seblu" Luttringer