113 lines
3.6 KiB
Bash
Executable file
113 lines
3.6 KiB
Bash
Executable file
#!/bin/bash
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# Fail on any error.
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set -e
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# Debug mode for diagnosing issues.
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# Setup first before other operations.
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debug="${2}"
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test "${debug}" = "true" && set -x
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# Include library.
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script_dir="$(dirname -- "$(realpath -- "${0}")")"
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source "${script_dir}/lib.sh"
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# Directory that holds the cached packages.
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cache_dir="${1}"
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# List of the packages to use.
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input_packages="${@:3}"
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# Trim commas, excess spaces, sort, and version syntax.
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#
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# NOTE: Unless specified, all APT package listings of name and version use
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# colon delimited and not equals delimited syntax (i.e. <name>[:=]<ver>).
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packages="$(get_normalized_package_list "${input_packages}")"
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package_count=$(wc -w <<< "${packages}")
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log "Clean installing and caching ${package_count} package(s)."
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log_empty_line
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manifest_main=""
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log "Package list:"
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for package in ${packages}; do
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read package_name package_ver < <(get_package_name_ver "${package}")
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manifest_main="${manifest_main}${package_name}=${package_ver},"
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log "- ${package_name} (${package_ver})"
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done
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write_manifest "main" "${manifest_main}" "${cache_dir}/manifest_main.log"
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log_empty_line
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log "Installing apt-fast for optimized installs..."
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# Install apt-fast for optimized installs.
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# /bin/bash -c "$(curl -sL https://git.io/vokNn)"
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log "done"
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log_empty_line
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log "Updating APT package list..."
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last_update_delta_s=$(($(date +%s) - $(date +%s -r /var/cache/apt/pkgcache.bin)))
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if test $last_update_delta_s -gt 300; then
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sudo apt-fast update > /dev/null
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log "done"
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else
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log "skipped (fresh by ${last_update_delta_s} seconds)"
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fi
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log_empty_line
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# Strictly contains the requested packages.
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manifest_main=""
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# Contains all packages including dependencies.
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manifest_all=""
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install_log_filepath="${cache_dir}/install.log"
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log "Clean installing ${package_count} packages..."
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# Zero interaction while installing or upgrading the system via apt.
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sudo DEBIAN_FRONTEND=noninteractive apt-fast --yes install ${packages} > "${install_log_filepath}"
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log "done"
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log "Installation log written to ${install_log_filepath}"
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log_empty_line
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installed_packages=$(get_installed_packages "${install_log_filepath}")
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log "Installed package list:"
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for installed_package in ${installed_packages}; do
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# Reformat for human friendly reading.
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log "- $(echo ${installed_package} | awk -F\= '{print $1" ("$2")"}')"
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done
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log_empty_line
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installed_packages_count=$(wc -w <<< "${installed_packages}")
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log "Caching ${installed_packages_count} installed packages..."
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for installed_package in ${installed_packages}; do
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cache_filepath="${cache_dir}/${installed_package}.tar"
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# Sanity test in case APT enumerates duplicates.
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if test ! -f "${cache_filepath}"; then
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read package_name package_ver < <(get_package_name_ver "${installed_package}")
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log " * Caching ${package_name} to ${cache_filepath}..."
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# Pipe all package files (no folders) and installation control data to Tar.
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{ dpkg -L "${package_name}" \
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& get_install_script_filepath "" "${package_name}" "preinst" \
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& get_install_script_filepath "" "${package_name}" "postinst"; } |
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while IFS= read -r f; do test -f "${f}" -o -L "${f}" && get_tar_relpath "${f}"; done |
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xargs -I {} echo \'{}\' | # Single quotes ensure literals like backslash get captured.
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sudo xargs tar -cf "${cache_filepath}" -C /
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log " done (compressed size $(du -h "${cache_filepath}" | cut -f1))."
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fi
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# Comma delimited name:ver pairs in the all packages manifest.
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manifest_all="${manifest_all}${package_name}=${package_ver},"
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done
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log "done (total cache size $(du -h ${cache_dir} | tail -1 | awk '{print $1}'))"
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log_empty_line
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write_manifest "all" "${manifest_all}" "${cache_dir}/manifest_all.log"
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