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shutils.in: Add get_fs_mount_point() function

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Allow getting the mount point of a given filesystem. This is useful to
detect the location of e.g. tracefs
This commit is contained in:
Douglas Raillard 2022-04-13 12:08:23 +01:00 committed by Marc Bonnici
parent fffa040792
commit 00a5bcb377
1 changed files with 12 additions and 0 deletions
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12
devlib/bin/scripts/shutils.in
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@ -10,6 +10,8 @@ SED=${SED:-$BUSYBOX sed}
CAT=${CAT:-$BUSYBOX cat}
AWK=${AWK:-$BUSYBOX awk}
PS=${PS:-$BUSYBOX ps}
MOUNT=${MOUNT:-$BUSYBOX mount}
PRINTF=${PRINTF:-$BUSYBOX printf}
################################################################################
# CPUFrequency Utility Functions
@ -319,6 +321,16 @@ get_android_system_id() {
echo "$hardware/$kernel/$filesystem"
}
get_fs_mount_point() {
local path=$(LC_ALL=C $MOUNT -t "$1" | $SED -n "s/$1 on \(.*\) type $1 .*/\1/p;q")
if [ "$path" == "" ]; then
return 1
else
$PRINTF "%s" "$path"
return 0
fi
}
################################################################################
# Main Function Dispatcher
################################################################################