termux-packages/scripts/generate-bootstraps.sh

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