2022-03-26 19:42:40 +00:00
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#!/bin/bash
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2022-11-24 06:24:00 +00:00
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###############################################################################
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# Execute the Debian install script.
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# Arguments:
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# Root directory to search from.
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# File path to cached package archive.
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# Installation script extension (preinst, postinst).
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# Parameter to pass to the installation script.
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# Returns:
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# Filepath of the install script, otherwise an empty string.
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###############################################################################
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function execute_install_script {
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2023-03-24 05:19:43 +00:00
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local package_name=$(basename ${2} | awk -F\= '{print $1}')
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2022-11-24 06:24:00 +00:00
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local install_script_filepath=$(\
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2023-03-24 03:20:24 +00:00
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get_install_script_filepath "${1}" "${package_name}" "${3}")
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2022-11-24 06:24:00 +00:00
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if test ! -z "${install_script_filepath}"; then
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log "- Executing ${install_script_filepath}..."
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# Don't abort on errors; dpkg-trigger will error normally since it is
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# outside its run environment.
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sudo sh -x ${install_script_filepath} ${4} || true
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log " done"
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fi
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2022-03-26 19:42:40 +00:00
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}
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2023-03-24 03:20:24 +00:00
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###############################################################################
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# Gets the Debian install script filepath.
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# Arguments:
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# Root directory to search from.
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# Name of the unqualified package to search for.
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# Extension of the installation script (preinst, postinst)
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# Returns:
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# Filepath of the script file, otherwise an empty string.
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###############################################################################
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function get_install_script_filepath {
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# Filename includes arch (e.g. amd64).
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local filepath="$(\
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ls -1 ${1}var/lib/dpkg/info/${2}*.${3} 2> /dev/null \
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| grep -E ${2}'(:.*)?.'${3} | head -1 || true)"
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test "${filepath}" && echo "${filepath}"
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}
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2022-11-24 06:24:00 +00:00
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###############################################################################
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# Gets a list of installed packages from a Debian package installation log.
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# Arguments:
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# The filepath of the Debian install log.
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# Returns:
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2023-03-24 03:20:24 +00:00
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# The list of colon delimited action syntax pairs with each pair equals
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# delimited. <name>:<version> <name>:<version>...
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2022-11-24 06:24:00 +00:00
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###############################################################################
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2022-08-03 04:14:51 +00:00
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function get_installed_packages {
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2022-11-24 06:24:00 +00:00
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local install_log_filepath="${1}"
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2022-08-03 04:14:51 +00:00
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local regex="^Unpacking ([^ :]+)([^ ]+)? (\[[^ ]+\]\s)?\(([^ )]+)"
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2022-11-24 06:24:00 +00:00
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local dep_packages=""
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2022-08-03 04:14:51 +00:00
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while read -r line; do
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2023-03-24 03:20:24 +00:00
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# ${regex} should be unquoted since it isn't a literal.
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2022-08-03 04:14:51 +00:00
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if [[ "${line}" =~ ${regex} ]]; then
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2023-03-24 05:19:43 +00:00
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dep_packages="${dep_packages}${BASH_REMATCH[1]}=${BASH_REMATCH[4]} "
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2022-08-03 04:14:51 +00:00
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else
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log_err "Unable to parse package name and version from \"${line}\""
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exit 2
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fi
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done < <(grep "^Unpacking " ${install_log_filepath})
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if test -n "${dep_packages}"; then
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echo "${dep_packages:0:-1}" # Removing trailing space.
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else
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echo ""
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fi
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2022-07-20 03:02:22 +00:00
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}
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2022-11-24 06:24:00 +00:00
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###############################################################################
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2023-03-24 03:20:24 +00:00
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# Splits a fully action syntax APT package into the name and version.
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2022-11-24 06:24:00 +00:00
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# Arguments:
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2023-10-11 15:07:11 +00:00
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# The action syntax equals delimited package pair or just the package name.
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2022-11-24 06:24:00 +00:00
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# Returns:
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# The package name and version pair.
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###############################################################################
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2022-03-26 19:42:40 +00:00
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function get_package_name_ver {
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2023-03-24 03:20:24 +00:00
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local ORIG_IFS="${IFS}"
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2023-03-24 05:19:43 +00:00
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IFS=\= read name ver <<< "${1}"
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IFS="${ORIG_IFS}"
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2022-03-26 19:42:40 +00:00
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# If version not found in the fully qualified package value.
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if test -z "${ver}"; then
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2023-10-11 15:07:11 +00:00
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# This is a fallback and should not be used any more as its slow.
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log_err "Unexpected version resolution for package '${name}'"
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ver="$(apt-cache show ${name} | grep '^Version:' | awk '{print $2}')"
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2022-03-26 19:42:40 +00:00
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fi
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2023-03-24 05:19:43 +00:00
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echo "${name}" "${ver}"
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2022-03-26 19:42:40 +00:00
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}
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2022-06-30 14:13:58 +00:00
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2022-11-24 06:24:00 +00:00
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###############################################################################
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2023-03-24 03:20:24 +00:00
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# Sorts given packages by name and split on commas and/or spaces.
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2022-11-24 06:24:00 +00:00
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# Arguments:
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2023-03-24 03:20:24 +00:00
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# The comma and/or space delimited list of packages.
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2022-11-24 06:24:00 +00:00
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# Returns:
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2023-10-11 15:07:11 +00:00
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# Sorted list of space delimited package name=version pairs.
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2022-11-24 06:24:00 +00:00
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###############################################################################
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2023-03-24 03:20:24 +00:00
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function get_normalized_package_list {
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2023-10-11 15:07:11 +00:00
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# Remove commas, and block scalar folded backslashes,
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# extraneous spaces at the middle, beginning and end
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# then sort.
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2023-12-22 18:28:03 +00:00
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local packages=$(echo "${1}" \
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2023-10-11 15:07:11 +00:00
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| sed 's/[,\]/ /g; s/\s\+/ /g; s/^\s\+//g; s/\s\+$//g' \
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| sort -t' ')
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2023-12-22 18:28:03 +00:00
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local script_dir="$(dirname -- "$(realpath -- "${0}")")"
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2024-03-01 20:59:14 +00:00
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local architecture=$(dpkg --print-architecture)
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if [ "${architecture}" == "arm64" ]; then
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${script_dir}/apt_query-arm64 normalized-list ${packages}
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else
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${script_dir}/apt_query normalized-list ${packages}
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fi
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2022-11-24 06:24:00 +00:00
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}
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###############################################################################
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# Gets the relative filepath acceptable by Tar. Just removes the leading slash
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# that Tar disallows.
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# Arguments:
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# Absolute filepath to archive.
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# Returns:
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# The relative filepath to archive.
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###############################################################################
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function get_tar_relpath {
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local filepath=${1}
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if test ${filepath:0:1} = "/"; then
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echo "${filepath:1}"
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else
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echo "${filepath}"
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fi
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}
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2023-10-11 15:07:11 +00:00
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function log { echo "$(date +%T.%3N)" "${@}"; }
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function log_err { >&2 echo "$(date +%T.%3N)" "${@}"; }
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2022-07-15 04:23:42 +00:00
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2022-07-24 00:06:17 +00:00
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function log_empty_line { echo ""; }
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2022-11-24 06:24:00 +00:00
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###############################################################################
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# Validates an argument to be of a boolean value.
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# Arguments:
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# Argument to validate.
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# Variable name of the argument.
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# Exit code if validation fails.
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# Returns:
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# Sorted list of space delimited packages.
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###############################################################################
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function validate_bool {
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if test "${1}" != "true" -a "${1}" != "false"; then
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log "aborted"
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log "${2} value '${1}' must be either true or false (case sensitive)."
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exit ${3}
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fi
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}
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###############################################################################
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# Writes the manifest to a specified file.
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# Arguments:
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# Type of manifest being written.
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# List of packages being written to the file.
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# File path of the manifest being written.
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# Returns:
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# Log lines from write.
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###############################################################################
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function write_manifest {
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if [ ${#2} -eq 0 ]; then
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log "Skipped ${1} manifest write. No packages to install."
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else
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log "Writing ${1} packages manifest to ${3}..."
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# 0:-1 to remove trailing comma, delimit by newline and sort.
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echo "${2:0:-1}" | tr ',' '\n' | sort > ${3}
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log "done"
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fi
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}
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