cache-apt-pkgs-action/install_and_cache_pkgs.sh
2022-06-03 21:04:43 -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.
packages="$(normalize_package_list "${input_packages}")"
package_count=$(echo "${packages}" | wc -w)
echo "Clean installing and caching ${package_count} package(s)."
echo "Package list:"
for package in "${packages}"; do
echo "- ${package}"
done
echo -n "Updating APT package list..."
sudo apt-get update > /dev/null
echo "done."
manifest=""
echo "Clean installing and caching ${package_count} packages..."
for package in "${packages}"; do
get_package_name_ver "${package}" # -> package_name, package_ver
package_deps="$(apt-get install --dry-run --yes "${package_name}" | grep "^Inst" | awk '{print $2}')"
echo "- ${package_name}"
echo " * Version: ${package_ver}"
echo " * Dependencies: ${package_deps}"
echo -n " * Installing..."
# Zero interaction while installing or upgrading the system via apt.
sudo DEBIAN_FRONTEND=noninteractive apt-get --yes install "${package}" > /dev/null
echo "done."
for cache_package in "${package_deps}"; do
cache_filepath="${cache_dir}/${cache_package}.tar.gz"
if test ! -f "${cache_filepath}"; then
get_package_name_ver "${cache_package}" # -> package_name, package_ver
echo -n " Caching ${package_name} to ${cache_filepath}..."
# Pipe all package files (no folders) to Tar.
dpkg -L "${package_name}" |
while IFS= read -r f; do
if test -f $f; then echo "${f:1}"; fi; #${f:1} removes the leading slash that Tar disallows
done |
xargs tar -czf "${cache_filepath}" -C /
echo "done."
# Add package to manifest
manifest="${manifest}${package_name}:$(dpkg -s "${package_name}" | grep Version | awk '{print $2}'),"
fi
done
done
echo "done."
manifest_filepath="${cache_dir}/manifest.log"
echo -n "Writing package manifest to ${manifest_filepath}..."
# Remove trailing comma and write to manifest file.
echo "${manifest:0:-1}" > "${manifest_filepath}"
echo "done."