352 lines
10 KiB
Bash
Executable File
352 lines
10 KiB
Bash
Executable File
#!/usr/bin/env bash
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##
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## Script for generating bootstrap archives.
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##
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set -e
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. $(dirname "$(realpath "$0")")/properties.sh
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BOOTSTRAP_TMPDIR=$(mktemp -d "${TMPDIR:-/tmp}/bootstrap-tmp.XXXXXXXX")
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trap 'rm -rf $BOOTSTRAP_TMPDIR' EXIT
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# By default, bootstrap archives are compatible with Android >=7.0
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# and <10.
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BOOTSTRAP_ANDROID10_COMPATIBLE=false
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# By default, bootstrap archives will be built for all architectures
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# supported by Termux application.
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# Override with option '--architectures'.
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TERMUX_ARCHITECTURES=("aarch64" "arm" "i686" "x86_64")
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# Can be changed by using '--repository' option.
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REPO_BASE_URL="https://packages.termux.org/apt/termux-main"
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# A list of non-essential packages. By default it is empty, but can
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# be filled with option '--add'.
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declare -a ADDITIONAL_PACKAGES
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# Check for some important utilities that may not be available for
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# some reason.
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for cmd in ar awk curl grep gzip find sed tar xargs xz zip; do
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if [ -z "$(command -v $cmd)" ]; then
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echo "[!] Utility '$cmd' is not available in PATH."
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exit 1
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fi
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done
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# Download package lists from remote repository.
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# Actually, there 2 lists can be downloaded: one architecture-independent and
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# one for architecture specified as '$1' argument. That depends on repository.
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# If repository has been created using "aptly", then architecture-independent
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# list is not available.
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read_package_list() {
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local architecture
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for architecture in all "$1"; do
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if [ ! -e "${BOOTSTRAP_TMPDIR}/packages.${architecture}" ]; then
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echo "[*] Downloading package list for architecture '${architecture}'..."
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if ! curl --fail --location \
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--output "${BOOTSTRAP_TMPDIR}/packages.${architecture}" \
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"${REPO_BASE_URL}/dists/stable/main/binary-${architecture}/Packages"; then
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if [ "$architecture" = "all" ]; then
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echo "[!] Skipping architecture-independent package list as not available..."
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continue
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fi
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fi
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echo >> "${BOOTSTRAP_TMPDIR}/packages.${architecture}"
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fi
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echo "[*] Reading package list for '${architecture}'..."
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while read -r -d $'\xFF' package; do
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if [ -n "$package" ]; then
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local package_name
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package_name=$(echo "$package" | grep -i "^Package:" | awk '{ print $2 }')
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if [ -z "${PACKAGE_METADATA["$package_name"]}" ]; then
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PACKAGE_METADATA["$package_name"]="$package"
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else
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local prev_package_ver cur_package_ver
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cur_package_ver=$(echo "$package" | grep -i "^Version:" | awk '{ print $2 }')
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prev_package_ver=$(echo "${PACKAGE_METADATA["$package_name"]}" | grep -i "^Version:" | awk '{ print $2 }')
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# If package has multiple versions, make sure that our metadata
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# contains the latest one.
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if [ "$(echo -e "${prev_package_ver}\n${cur_package_ver}" | sort -rV | head -n1)" = "${cur_package_ver}" ]; then
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PACKAGE_METADATA["$package_name"]="$package"
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fi
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fi
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fi
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done < <(sed -e "s/^$/\xFF/g" "${BOOTSTRAP_TMPDIR}/packages.${architecture}")
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done
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}
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# Download specified package, its depenencies and then extract *.deb files to
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# the bootstrap root.
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pull_package() {
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local package_name=$1
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local package_tmpdir="${BOOTSTRAP_PKGDIR}/${package_name}"
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mkdir -p "$package_tmpdir"
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local package_url
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package_url="$REPO_BASE_URL/$(echo "${PACKAGE_METADATA[${package_name}]}" | grep -i "^Filename:" | awk '{ print $2 }')"
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if [ "${package_url}" = "$REPO_BASE_URL" ] || [ "${package_url}" = "${REPO_BASE_URL}/" ]; then
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echo "[!] Failed to determine URL for package '$package_name'."
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exit 1
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fi
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local package_dependencies
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package_dependencies=$(
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while read -r token; do
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echo "$token" | cut -d'|' -f1 | sed -E 's@\(.*\)@@'
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done < <(echo "${PACKAGE_METADATA[${package_name}]}" | grep -i "^Depends:" | sed -E 's@^[Dd]epends:@@' | tr ',' '\n')
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)
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# Recursively handle dependencies.
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if [ -n "$package_dependencies" ]; then
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local dep
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for dep in $package_dependencies; do
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if [ ! -e "${BOOTSTRAP_PKGDIR}/${dep}" ]; then
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pull_package "$dep"
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fi
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done
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unset dep
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fi
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if [ ! -e "$package_tmpdir/package.deb" ]; then
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echo "[*] Downloading '$package_name'..."
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curl --fail --location --output "$package_tmpdir/package.deb" "$package_url"
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echo "[*] Extracting '$package_name'..."
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(cd "$package_tmpdir"
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ar x package.deb
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# data.tar may have extension different from .xz
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if [ -f "./data.tar.xz" ]; then
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data_archive="data.tar.xz"
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elif [ -f "./data.tar.gz" ]; then
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data_archive="data.tar.gz"
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else
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echo "No data.tar.* found in '$package_name'."
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exit 1
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fi
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# Do same for control.tar.
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if [ -f "./control.tar.xz" ]; then
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control_archive="control.tar.xz"
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elif [ -f "./control.tar.gz" ]; then
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control_archive="control.tar.gz"
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else
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echo "No control.tar.* found in '$package_name'."
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exit 1
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fi
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# Extract files.
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tar xf "$data_archive" -C "$BOOTSTRAP_ROOTFS"
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if ! ${BOOTSTRAP_ANDROID10_COMPATIBLE}; then
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# Register extracted files.
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tar tf "$data_archive" | sed -E -e 's@^\./@/@' -e 's@^/$@/.@' -e 's@^([^./])@/\1@' > "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/info/${package_name}.list"
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# Generate checksums (md5).
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tar xf "$data_archive"
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find data -type f -print0 | xargs -0 -r md5sum | sed 's@^\.$@@g' > "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/info/${package_name}.md5sums"
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# Extract metadata.
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tar xf "$control_archive"
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{
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cat control
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echo "Status: install ok installed"
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echo
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} >> "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/status"
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# Additional data: conffiles & scripts
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for file in conffiles postinst postrm preinst prerm; do
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if [ -f "${PWD}/${file}" ]; then
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cp "$file" "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/info/${package_name}.${file}"
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fi
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done
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fi
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)
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fi
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}
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# Final stage: generate bootstrap archive and place it to current
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# working directory.
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# Information about symlinks is stored in file SYMLINKS.txt.
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create_bootstrap_archive() {
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echo "[*] Creating 'bootstrap-${1}.zip'..."
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(cd "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}"
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# Do not store symlinks in bootstrap archive.
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# Instead, put all information to SYMLINKS.txt
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while read -r -d '' link; do
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echo "$(readlink "$link")←${link}" >> SYMLINKS.txt
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rm -f "$link"
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done < <(find . -type l -print0)
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zip -r9 "${BOOTSTRAP_TMPDIR}/bootstrap-${1}.zip" ./*
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)
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mv -f "${BOOTSTRAP_TMPDIR}/bootstrap-${1}.zip" ./
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echo "[*] Finished successfully (${1})."
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}
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show_usage() {
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echo
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echo "Usage: generate-bootstraps.sh [options]"
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echo
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echo "Generate bootstrap archives for Termux application."
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echo
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echo "Options:"
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echo
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echo " -h, --help Show this help."
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echo
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echo " --android10 Generate bootstrap archives for Android 10."
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echo
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echo " -a, --add PKG_LIST Specify one or more additional packages"
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echo " to include into bootstrap archive."
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echo " Multiple packages should be passed as"
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echo " comma-separated list."
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echo
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echo " --architectures ARCH_LIST Override default list of architectures"
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echo " for which bootstrap archives will be"
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echo " created."
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echo " Multiple architectures should be passed"
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echo " as comma-separated list."
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echo
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echo " -r, --repository URL Specify URL for APT repository from"
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echo " which packages will be downloaded."
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echo
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echo "Architectures: ${TERMUX_ARCHITECTURES[*]}"
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echo "Repository URL: ${REPO_BASE_URL}"
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echo "Prefix: ${TERMUX_PREFIX}"
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echo
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}
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while (($# > 0)); do
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case "$1" in
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-h|--help)
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show_usage
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exit 0
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;;
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--android10)
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BOOTSTRAP_ANDROID10_COMPATIBLE=true
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;;
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-a|--add)
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if [ $# -gt 1 ] && [ -n "$2" ] && [[ $2 != -* ]]; then
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for pkg in $(echo "$2" | tr ',' ' '); do
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ADDITIONAL_PACKAGES+=("$pkg")
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done
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unset pkg
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shift 1
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else
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echo "[!] Option '--add' requires an argument."
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show_usage
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exit 1
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fi
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;;
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--architectures)
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if [ $# -gt 1 ] && [ -n "$2" ] && [[ $2 != -* ]]; then
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TERMUX_ARCHITECTURES=()
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for arch in $(echo "$2" | tr ',' ' '); do
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TERMUX_ARCHITECTURES+=("$arch")
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done
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unset arch
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shift 1
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else
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echo "[!] Option '--architectures' requires an argument."
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show_usage
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exit 1
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fi
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;;
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-r|--repository)
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if [ $# -gt 1 ] && [ -n "$2" ] && [[ $2 != -* ]]; then
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REPO_BASE_URL="$2"
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shift 1
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else
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echo "[!] Option '--repository' requires an argument."
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show_usage
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exit 1
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fi
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;;
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*)
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echo "[!] Got unknown option '$1'"
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show_usage
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exit 1
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;;
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esac
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shift 1
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done
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for package_arch in "${TERMUX_ARCHITECTURES[@]}"; do
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BOOTSTRAP_ROOTFS="$BOOTSTRAP_TMPDIR/rootfs-${package_arch}"
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BOOTSTRAP_PKGDIR="$BOOTSTRAP_TMPDIR/packages-${package_arch}"
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# Create initial directories for $TERMUX_PREFIX
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if ! ${BOOTSTRAP_ANDROID10_COMPATIBLE}; then
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mkdir -p "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/etc/apt/apt.conf.d"
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mkdir -p "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/etc/apt/preferences.d"
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mkdir -p "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/info"
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mkdir -p "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/triggers"
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mkdir -p "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/updates"
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mkdir -p "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/log/apt"
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touch "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/available"
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touch "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/var/lib/dpkg/status"
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fi
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mkdir -p "${BOOTSTRAP_ROOTFS}/${TERMUX_PREFIX}/tmp"
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# Read package metadata.
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unset PACKAGE_METADATA
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declare -A PACKAGE_METADATA
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read_package_list "$package_arch"
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# Package manager.
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if ! ${BOOTSTRAP_ANDROID10_COMPATIBLE}; then
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pull_package apt
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fi
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# Core utilities.
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pull_package bash
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pull_package bzip2
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if ! ${BOOTSTRAP_ANDROID10_COMPATIBLE}; then
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pull_package command-not-found
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else
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pull_package proot
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fi
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pull_package coreutils
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pull_package curl
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pull_package dash
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pull_package diffutils
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pull_package findutils
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pull_package gawk
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pull_package grep
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pull_package gzip
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pull_package less
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pull_package procps
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pull_package psmisc
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pull_package sed
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pull_package tar
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pull_package termux-exec
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pull_package termux-tools
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pull_package util-linux
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pull_package xz-utils
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# Additional.
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pull_package ed
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pull_package debianutils
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pull_package dos2unix
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pull_package inetutils
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pull_package lsof
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pull_package nano
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pull_package net-tools
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pull_package patch
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pull_package unzip
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# Handle additional packages.
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for add_pkg in "${ADDITIONAL_PACKAGES[@]}"; do
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pull_package "$add_pkg"
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done
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unset add_pkg
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# Create bootstrap archive.
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create_bootstrap_archive "$package_arch"
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done
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