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src/install.sh
344
src/install.sh
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#!/usr/bin/env bash
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set -Eeuo pipefail
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moveFile() {
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local file="$1"
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local ext="${file##*.}"
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local dest="$STORAGE/boot.$ext"
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if [[ "$file" == "$dest" ]] || [[ "$file" == "/boot.$ext" ]]; then
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BOOT="$file"
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return 0
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fi
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if ! mv -f "$file" "$dest"; then
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error "Failed to move $file to $dest !"
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return 1
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fi
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BOOT="$dest"
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return 0
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}
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detectType() {
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local dir=""
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local file="$1"
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[ ! -f "$file" ] && return 1
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[ ! -s "$file" ] && return 1
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case "${file,,}" in
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*".iso" | *".img" | *".raw" | *".qcow2" ) ;;
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* ) return 1 ;;
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esac
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if [ -n "$BOOT_MODE" ] || [[ "${file,,}" != *".iso" ]]; then
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! moveFile "$file" && return 1
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return 0
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fi
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# Automaticly detect UEFI-compatible ISO's
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dir=$(isoinfo -f -i "$file")
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if [ -n "$dir" ]; then
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dir=$(echo "${dir^^}" | grep "^/EFI")
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[ -z "$dir" ] && BOOT_MODE="legacy"
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else
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error "Failed to read ISO file, invalid format!"
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fi
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! moveFile "$file" && return 1
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return 0
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}
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downloadFile() {
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local url="$1"
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local base="$2"
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local name="$3"
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local msg rc total size progress
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local dest="$STORAGE/$base.tmp"
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rm -f "$dest"
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# Check if running with interactive TTY or redirected to docker log
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if [ -t 1 ]; then
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progress="--progress=bar:noscroll"
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else
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progress="--progress=dot:giga"
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fi
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if [ -z "$name" ]; then
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name="$base"
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msg="Downloading image"
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else
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msg="Downloading $name"
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fi
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info "Downloading $name..."
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html "$msg..."
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/run/progress.sh "$dest" "0" "$msg ([P])..." &
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{ wget "$url" -O "$dest" -q --timeout=30 --no-http-keep-alive --show-progress "$progress"; rc=$?; } || :
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fKill "progress.sh"
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if (( rc == 0 )) && [ -f "$dest" ]; then
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total=$(stat -c%s "$dest")
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size=$(formatBytes "$total")
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if [ "$total" -lt 100000 ]; then
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error "Invalid image file: is only $size ?" && return 1
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fi
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html "Download finished successfully..."
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mv -f "$dest" "$STORAGE/$base"
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return 0
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fi
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msg="Failed to download $url"
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(( rc == 3 )) && error "$msg , cannot write file (disk full?)" && return 1
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(( rc == 4 )) && error "$msg , network failure!" && return 1
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(( rc == 8 )) && error "$msg , server issued an error response!" && return 1
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error "$msg , reason: $rc"
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return 1
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}
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convertImage() {
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local source_file=$1
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local source_fmt=$2
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local dst_file=$3
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local dst_fmt=$4
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local dir base fs fa space space_gb
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local cur_size cur_gb src_size disk_param
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[ -f "$dst_file" ] && error "Conversion failed, destination file $dst_file already exists?" && return 1
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[ ! -f "$source_file" ] && error "Conversion failed, source file $source_file does not exists?" && return 1
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if [[ "${source_fmt,,}" == "${dst_fmt,,}" ]]; then
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mv -f "$source_file" "$dst_file"
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return 0
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fi
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local tmp_file="$dst_file.tmp"
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dir=$(dirname "$tmp_file")
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rm -f "$tmp_file"
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if [ -n "$ALLOCATE" ] && [[ "$ALLOCATE" != [Nn]* ]]; then
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# Check free diskspace
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src_size=$(qemu-img info "$source_file" -f "$source_fmt" | grep '^virtual size: ' | sed 's/.*(\(.*\) bytes)/\1/')
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space=$(df --output=avail -B 1 "$dir" | tail -n 1)
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if (( src_size > space )); then
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space_gb=$(formatBytes "$space")
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error "Not enough free space to convert image in $dir, it has only $space_gb available..." && return 1
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fi
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fi
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base=$(basename "$source_file")
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info "Converting $base..."
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html "Converting image..."
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local conv_flags="-p"
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if [ -z "$ALLOCATE" ] || [[ "$ALLOCATE" == [Nn]* ]]; then
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disk_param="preallocation=off"
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else
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disk_param="preallocation=falloc"
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fi
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fs=$(stat -f -c %T "$dir")
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[[ "${fs,,}" == "btrfs" ]] && disk_param+=",nocow=on"
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if [[ "$dst_fmt" != "raw" ]]; then
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if [ -z "$ALLOCATE" ] || [[ "$ALLOCATE" == [Nn]* ]]; then
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conv_flags+=" -c"
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fi
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[ -n "${DISK_FLAGS:-}" ] && disk_param+=",$DISK_FLAGS"
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fi
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# shellcheck disable=SC2086
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if ! qemu-img convert -f "$source_fmt" $conv_flags -o "$disk_param" -O "$dst_fmt" -- "$source_file" "$tmp_file"; then
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rm -f "$tmp_file"
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error "Failed to convert image in $dir, is there enough space available?" && return 1
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fi
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if [[ "$dst_fmt" == "raw" ]]; then
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if [ -n "$ALLOCATE" ] && [[ "$ALLOCATE" != [Nn]* ]]; then
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# Work around qemu-img bug
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cur_size=$(stat -c%s "$tmp_file")
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cur_gb=$(formatBytes "$cur_size")
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if ! fallocate -l "$cur_size" "$tmp_file" &>/dev/null; then
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if ! fallocate -l -x "$cur_size" "$tmp_file"; then
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error "Failed to allocate $cur_gb for image!"
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fi
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fi
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fi
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fi
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rm -f "$source_file"
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mv "$tmp_file" "$dst_file"
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if [[ "${fs,,}" == "btrfs" ]]; then
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fa=$(lsattr "$dst_file")
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if [[ "$fa" != *"C"* ]]; then
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error "Failed to disable COW for image on ${fs^^} filesystem!"
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fi
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fi
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html "Conversion completed..."
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return 0
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}
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findFile() {
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local file
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local ext="$1"
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local fname="boot.$ext"
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if [ -d "/$fname" ]; then
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warn "The file /$fname has an invalid path!"
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fi
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file=$(find / -maxdepth 1 -type f -iname "$fname" | head -n 1)
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[ ! -s "$file" ] && file=$(find "$STORAGE" -maxdepth 1 -type f -iname "$fname" | head -n 1)
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detectType "$file" && return 0
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return 1
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}
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findFile "iso" && return 0
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findFile "img" && return 0
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findFile "raw" && return 0
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findFile "qcow2" && return 0
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if [ -z "$BOOT" ] || [[ "$BOOT" == *"example.com/image.iso" ]]; then
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hasDisk && return 0
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error "No value specified for the BOOT variable." && exit 64
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fi
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url=$(getURL "$BOOT" "url") || exit 34
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name=$(getURL "$BOOT" "name") || exit 34
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[ -n "$url" ] && BOOT="$url"
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if [[ "$BOOT" != *"."* ]]; then
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error "Invalid BOOT value specified, shortcut \"$BOOT\" is not recognized!" && exit 64
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fi
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if [[ "${BOOT,,}" != "http"* ]]; then
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error "Invalid BOOT value specified, \"$BOOT\" is not a valid URL!" && exit 64
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fi
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base=$(basename "${BOOT%%\?*}")
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: "${base//+/ }"; printf -v base '%b' "${_//%/\\x}"
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base=$(echo "$base" | sed -e 's/[^A-Za-z0-9._-]/_/g')
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case "${base,,}" in
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*".iso" | *".img" | *".raw" | *".qcow2" )
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detectType "$STORAGE/$base" && return 0 ;;
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*".vdi" | *".vmdk" | *".vhd" | *".vhdx" )
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detectType "$STORAGE/${base%.*}.img" && return 0
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detectType "$STORAGE/${base%.*}.qcow2" && return 0 ;;
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*".gz" | *".gzip" | *".xz" | *".7z" | *".zip" | *".rar" | *".lzma" | *".bz" | *".bz2" )
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case "${base%.*}" in
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*".iso" | *".img" | *".raw" | *".qcow2" )
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detectType "$STORAGE/${base%.*}" && return 0 ;;
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*".vdi" | *".vmdk" | *".vhd" | *".vhdx" )
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find="${base%.*}"
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detectType "$STORAGE/${find%.*}.img" && return 0
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detectType "$STORAGE/${find%.*}.qcow2" && return 0 ;;
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esac ;;
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* ) error "Unknown file extension, type \".${base/*./}\" is not recognized!" && exit 33 ;;
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esac
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if ! downloadFile "$BOOT" "$base" "$name"; then
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rm -f "$STORAGE/$base.tmp" && exit 60
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fi
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case "${base,,}" in
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*".gz" | *".gzip" | *".xz" | *".7z" | *".zip" | *".rar" | *".lzma" | *".bz" | *".bz2" )
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info "Extracting $base..."
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html "Extracting image..." ;;
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esac
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case "${base,,}" in
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*".gz" | *".gzip" )
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gzip -dc "$STORAGE/$base" > "$STORAGE/${base%.*}"
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rm -f "$STORAGE/$base"
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base="${base%.*}"
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;;
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*".xz" )
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xz -dc "$STORAGE/$base" > "$STORAGE/${base%.*}"
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rm -f "$STORAGE/$base"
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base="${base%.*}"
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;;
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*".7z" | *".zip" | *".rar" | *".lzma" | *".bz" | *".bz2" )
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tmp="$STORAGE/extract"
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rm -rf "$tmp"
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mkdir -p "$tmp"
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7z x "$STORAGE/$base" -o"$tmp" > /dev/null
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rm -f "$STORAGE/$base"
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base="${base%.*}"
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if [ ! -s "$tmp/$base" ]; then
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rm -rf "$tmp"
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error "Cannot find file \"${base}\" in .${BOOT/*./} archive!" && exit 32
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fi
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mv "$tmp/$base" "$STORAGE/$base"
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rm -rf "$tmp"
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;;
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esac
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case "${base,,}" in
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*".iso" | *".img" | *".raw" | *".qcow2" )
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detectType "$STORAGE/$base" && return 0
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error "Cannot read file \"${base}\"" && exit 63 ;;
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esac
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target_ext="img"
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target_fmt="${DISK_FMT:-}"
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[ -z "$target_fmt" ] && target_fmt="raw"
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[[ "$target_fmt" != "raw" ]] && target_ext="qcow2"
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case "${base,,}" in
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*".vdi" ) source_fmt="vdi" ;;
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*".vhd" ) source_fmt="vpc" ;;
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*".vhdx" ) source_fmt="vpc" ;;
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*".vmdk" ) source_fmt="vmdk" ;;
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* ) error "Unknown file extension, type \".${base/*./}\" is not recognized!" && exit 33 ;;
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esac
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dst="$STORAGE/${base%.*}.$target_ext"
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! convertImage "$STORAGE/$base" "$source_fmt" "$dst" "$target_fmt" && exit 35
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base=$(basename "$dst")
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detectType "$STORAGE/$base" && return 0
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error "Cannot convert file \"${base}\"" && exit 36
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