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The long awaited vendor mount fix

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This commit is contained in:
topjohnwu 2017-03-15 03:43:28 +08:00
parent 7877ac0c3b
commit 3c7e865555
1 changed files with 45 additions and 40 deletions
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85
scripts/magic_mask.sh
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@ -55,6 +55,30 @@ unblock() {
exit
}
bind_mount() {
if [ -e "$1" -a -e "$2" ]; then
mount -o bind "$1" "$2" || log_print "Mount Fail: $1 -> $2"
fi
}
loopsetup() {
LOOPDEVICE=
for DEV in `ls /dev/block/loop*`; do
if losetup $DEV $1; then
LOOPDEVICE=$DEV
break
fi
done
}
target_size_check() {
e2fsck -p -f "$1"
curBlocks=`e2fsck -n $1 2>/dev/null | cut -d, -f3 | cut -d\ -f2`;
curUsedM=$((`echo "$curBlocks" | cut -d/ -f1` * 4 / 1024));
curSizeM=$((`echo "$curBlocks" | cut -d/ -f2` * 4 / 1024));
curFreeM=$((curSizeM - curUsedM));
}
run_scripts() {
BASE=$MOUNTPOINT
for MOD in $BASE/* ; do
@ -77,53 +101,40 @@ run_scripts() {
done
}
loopsetup() {
LOOPDEVICE=
for DEV in `ls /dev/block/loop*`; do
if losetup $DEV $1; then
LOOPDEVICE=$DEV
break
fi
done
}
target_size_check() {
e2fsck -p -f "$1"
curBlocks=`e2fsck -n $1 2>/dev/null | cut -d, -f3 | cut -d\ -f2`;
curUsedM=$((`echo "$curBlocks" | cut -d/ -f1` * 4 / 1024));
curSizeM=$((`echo "$curBlocks" | cut -d/ -f2` * 4 / 1024));
curFreeM=$((curSizeM - curUsedM));
}
travel() {
# Ignore /system/vendor, we will handle it differently
[ "$1" = "system/vendor" ] && return
cd "$TRAVEL_ROOT/$1"
if [ -f .replace ]; then
log_print "Replace: /$1"
rm -rf "$MOUNTINFO/$1"
mktouch "$MOUNTINFO/$1" "$TRAVEL_ROOT"
else
for ITEM in * ; do
# This means it an empty folder (shouldn't happen, but better to be safe)
[ "$ITEM" = "*" ] && return;
# This means it's an empty folder (shouldn't happen, but better to be safe)
[ "$ITEM" = "*" ] && return
# Ignore /system/vendor since we will handle it differently
[ "$1" = "system" -a "$ITEM" = "vendor" ] && continue
# Target not found or target/file is a symlink
if [ ! -e "/$1/$ITEM" -o -L "/$1/$ITEM" -o -L "$ITEM" ]; then
# If we are in a higher level, delete the lower levels
rm -rf "$MOUNTINFO/dummy/$1" 2>/dev/null
# Mount the dummy parent
log_print "Replace with dummy: /$1"
mktouch "$MOUNTINFO/dummy/$1"
if [ -d "$ITEM" ]; then
# Create new dummy directory and mount it
mkdir -p "$DUMMDIR/$1/$ITEM"
mktouch "$MOUNTINFO/$1/$ITEM" "$TRAVEL_ROOT"
elif [ -L "$ITEM" ]; then
if [ -L "$ITEM" ]; then
# Copy symlinks
log_print "Symlink: /$1/$ITEM"
mkdir -p "$DUMMDIR/$1" 2>/dev/null
cp -afc "$ITEM" $"DUMMDIR/$1/$ITEM"
elif [ -d "$ITEM" ]; then
# Create new dummy directory and mount it
log_print "New directory: /$1/$ITEM"
mkdir -p "$DUMMDIR/$1/$ITEM"
mktouch "$MOUNTINFO/$1/$ITEM" "$TRAVEL_ROOT"
else
# Create new dummy file and mount it
log_print "New file: /$1/$ITEM"
mktouch "$DUMMDIR/$1/$ITEM"
mktouch "$MOUNTINFO/$1/$ITEM" "$TRAVEL_ROOT"
fi
@ -133,6 +144,7 @@ travel() {
(travel "$1/$ITEM")
elif [ ! -L "$ITEM" ]; then
# Mount this file
log_print "Replace: /$1/$ITEM"
mktouch "$MOUNTINFO/$1/$ITEM" "$TRAVEL_ROOT"
fi
fi
@ -164,24 +176,16 @@ clone_dummy() {
else
mktouch "$DUMMDIR$REAL"
fi
[ ! -e "$MOUNTINFO$REAL" ] && mktouch "$MOUNTINFO/mirror$REAL"
if [ ! -e "$MOUNTINFO$REAL" ]; then
log_print "Clone skeleton: $REAL"
mktouch "$MOUNTINFO/mirror$REAL"
fi
fi
fi
fi
done
}
bind_mount() {
if [ -e "$1" -a -e "$2" ]; then
mount -o bind "$1" "$2"
if [ $? -eq 0 ]; then
log_print "Mount: $1"
else
log_print "Mount Fail: $1"
fi
fi
}
merge_image() {
if [ -f $1 ]; then
log_print "$1 found"
@ -396,6 +400,7 @@ case $1 in
# Travel through all mods
for MOD in $MOUNTPOINT/* ; do
if [ -f $MOD/auto_mount -a -d $MOD/system -a ! -f $MOD/disable ]; then
log_print "Analyzing module: $MOD"
TRAVEL_ROOT=$MOD
(travel system)
rm -f $MOD/vendor 2>/dev/null