Flash Samsung factory image packages on Linux

factory_flash.sh

#!/bin/bash

if [ -z "$1" ] || [ ! -f "$1" ]; then
    echo "Usage: $0 <zip> <wipe y/n>"
    exit 1
fi

REQUIREMENTS="git g++ heimdall lz4 make unzip"
for REQUIREMENT in $REQUIREMENTS; do
    [ -z "$(command -v $REQUIREMENT)" ] && echo "Error: Please install $REQUIREMENTS" && exit 1
done

ZIP="$(realpath $1)"
DIR="./tmp_${1}"
rm -rf "$DIR"
mkdir "$DIR"
cd "$DIR"

WIPE="$2"
[ "$WIPE" != "y" ] && WIPE="n"

CSC="HOME_CSC"
[ "$WIPE" = "y" ] && CSC="CSC"

for PART in BL AP CP "$CSC"; do
    echo "Unpacking $PART"
    unzip "$ZIP" "${PART}*"
    tar xf "${PART}"*.md5
    rm "${PART}"*.md5
done

# Extract PIT which is only in regular CSC package, not HOME_CSC
[ "$WIPE" = "n" ] && unzip -p "$ZIP" "CSC*" | tar xf - --wildcards "*.pit"

for LZ4 in *.lz4; do
    lz4 -d "$LZ4"
    rm -f "$LZ4"
done

PIT="$(ls *.pit)"
echo "Using PIT $PIT"

git clone https://github.com/Linux4/firmware-update
make -C firmware-update/tools/pithelper
GET_PARTITION="./firmware-update/tools/pithelper/get-pit-partition"

HEIMDALL_CMD="heimdall flash"

for PART in *; do
    [ ! -f "$PART" ] && continue;
    [ "$PART" = "$PIT" ] && continue;
    [ "$WIPE" = "n" ] && [ "$(basename $PART)" = "userdata.img" ] && continue;

    PARTITION="$($GET_PARTITION $PIT $(basename $PART))"
    [ -z "$PARTITION" ] && echo "Error: $PART not assigned to any partition" && exit 1

    HEIMDALL_CMD="$HEIMDALL_CMD --${PARTITION} ${PART}"
done

$HEIMDALL_CMD