cache-apt-pkgs-action/install_and_cache_pkgs.sh
2022-09-01 14:40:15 -07:00

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#!/bin/bash
# Fail on any error.
set -e
# Include library.
script_dir="$(dirname -- "$(realpath -- "${0}")")"
source "${script_dir}/lib.sh"
# Directory that holds the cached packages.
cache_dir="${1}"
# List of the packages to use.
input_packages="${@:2}"
# Trim commas, excess spaces, and sort.
normalized_packages="$(normalize_package_list "${input_packages}")"
package_count=$(wc -w <<< "${normalized_packages}")
log "Clean installing and caching ${package_count} package(s)."
log_empty_line
manifest_main=""
log "Package list:"
for package in ${normalized_packages}; do
read package_name package_ver < <(get_package_name_ver "${package}")
manifest_main="${manifest_main}${package_name}:${package_ver},"
log "- ${package_name}:${package_ver}"
done
write_manifest "main" "${manifest_main}" "${cache_dir}/manifest_main.log"
log_empty_line
log "Updating APT package list..."
sudo apt-fast update > /dev/null
log "done"
log_empty_line
# Strictly contains the requested packages.
manifest_main=""
# Contains all packages including dependencies.
manifest_all=""
install_log_filepath="${cache_dir}/install.log"
log "Clean installing ${package_count} packages..."
# Zero interaction while installing or upgrading the system via apt.
sudo DEBIAN_FRONTEND=noninteractive apt-fast --yes install ${normalized_packages} > "${install_log_filepath}"
log "done"
log "Installation log written to ${install_log_filepath}"
log_empty_line
installed_packages=$(get_installed_packages "${install_log_filepath}")
log "Installed package list:"
for installed_package in ${installed_packages}; do
log "- ${installed_package}"
done
log_empty_line
installed_package_count=$(wc -w <<< "${installed_packages}")
log "Caching ${installed_package_count} installed packages..."
for installed_package in ${installed_packages}; do
cache_filepath="${cache_dir}/${installed_package}.tar.gz"
# Sanity test in case APT enumerates duplicates.
if test ! -f "${cache_filepath}"; then
read installed_package_name installed_package_ver < <(get_package_name_ver "${installed_package}")
log " * Caching ${installed_package_name} to ${cache_filepath}..."
# Pipe all package files (no folders) to Tar.
dpkg -L "${installed_package_name}" |
while IFS= read -r f; do
if test -f $f || test -L $f; then echo "${f:1}"; fi; #${f:1} removes the leading slash that Tar disallows
done |
sudo xargs tar -czf "${cache_filepath}" -C /
log " done (compressed size $(du -h "${cache_filepath}" | cut -f1))."
fi
# Comma delimited name:ver pairs in the all packages manifest.
manifest_all="${manifest_all}${installed_package_name}:${installed_package_ver},"
done
log "done (total cache size $(du -h ${cache_dir} | tail -1 | awk '{print $1}'))"
log_empty_line
write_manifest "all" "${manifest_all}" "${cache_dir}/manifest_all.log"