104 lines
3.3 KiB
Bash
Executable File
104 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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declare -a pkgs
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while read pkg; do
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pkgs+=("${pkg}")
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done
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declare operation
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operation="${1}"
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declare conf_file
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conf_file='/etc/pacman-zfs-snapshot.conf'
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declare important_names snaps_trivial_keep snaps_important_keep snaps_trivial_suffix snaps_important_suffix
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if [[ -r "${conf_file}" ]]; then
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source "${conf_file}"
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fi
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if [[ ! "${important_names}" ]]; then important_names='linux'; fi
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if [[ ! "${snaps_trivial_keep}" ]]; then snaps_trivial_keep='5'; fi
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if [[ ! "${snaps_important_keep}" ]]; then snaps_important_keep='5'; fi
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if [[ ! "${snaps_trivial_suffix}" ]]; then snaps_trivial_suffix='trv'; fi
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if [[ ! "${snaps_important_suffix}" ]]; then snaps_important_suffix='imp'; fi
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if [[ ! "${pkgs_list_max_length}" ]]; then pkgs_list_max_length='24'; fi
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function split_pkgs_by_importance () {
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local pkgs_in_transaction
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pkgs_in_transaction=("${@}")
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for pkg in "${pkgs_in_transaction[@]}"; do
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if grep -Piq -- '^'"${important_names}"'$' <<<"${pkg}"; then
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important_pkgs_in_transaction+=("${pkg}")
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else
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trivial_pkgs_in_transaction+=("${pkg}")
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fi
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done
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}
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function set_severity () {
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if [[ "${#important_pkgs_in_transaction[@]}" -ge '1' ]]; then
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severity='imp'
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else
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severity='trv'
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fi
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}
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function get_globally_snappable_datasets () {
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local datasets_list
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# For all datasets show their 'space.quico:auto-snapshot' property; only
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# print dataset name in column 1 and property value in column 2. In awk
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# limit this list to datasets where tab-delimited column 2 has exact
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# string '^true$' then further limit output by eliminating snapshots
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# from list, i.e. dataset names that contain an '@' character.
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datasets_list="$(zfs get -H -o 'name,value' 'space.quico:auto-snapshot' | \
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awk -F'\t' '{if($2 ~ /^true$/ && $1 !~ /@/) print $1}')"
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while IFS= read -r dataset; do
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globally_snappable_datasets+=("${dataset}")
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done <<<"${datasets_list}"
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}
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function write_pkg_list_oneline () {
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local unabridged_pkg_list_oneline
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if [[ "${severity}" == 'imp' ]]; then
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for pkg in "${important_pkgs_in_transaction[@]}"; do
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if [[ "${unabridged_pkg_list_oneline}" ]]; then
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unabridged_pkg_list_oneline="${unabridged_pkg_list_oneline}"','"${pkg}"
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else
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unabridged_pkg_list_oneline="${pkg}"
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fi
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done
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fi
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if [[ "${#trivial_pkgs_in_transaction[@]}" -ge '1' ]]; then
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for pkg in "${trivial_pkgs_in_transaction[@]}"; do
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if [[ "${unabridged_pkg_list_oneline}" ]]; then
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unabridged_pkg_list_oneline="${unabridged_pkg_list_oneline}"','"${pkg}"
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else
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unabridged_pkg_list_oneline="${pkg}"
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fi
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done
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fi
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}
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function main () {
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local pkgs_in_transaction
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pkgs_in_transaction=("${@}")
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local -a important_pkgs_in_transaction trivial_pkgs_in_transaction
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split_pkgs_by_importance "${pkgs_in_transaction[@]}"
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local severity
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set_severity
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local -a globally_snappable_datasets
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get_globally_snappable_datasets
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local pkg_list_oneline
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write_pkg_list_oneline
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#for pkg in "${!important_pkgs_in_transaction[@]}"; do
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# printf -- 'Array item '"'"'%s'"'"' equals '"'"'%s'"'"'\n' "${pkg}" "${important_pkgs_in_transaction[${pkg}]}"
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#done
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}
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main "${pkgs[@]}"
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