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enable custom config file #32

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enable custom config file #32

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,7 @@ Usage: zfsbud [OPTION]... SOURCE/DATASET/PATH [SOURCE/DATASET/PATH2...]
-r, --remove-old remove old snapshots according to the policy defined in the configuration file
-d, --dry-run show output without making actual changes
-p, --snapshot-prefix <prefix> use a snapshot prefix other than the one defined in the configuration file
-C, --custom-config </path/to/file> custom config file
-v, --verbose increase verbosity
-l, --log log to user's home directory
-L, --log-path </path/to/file> provide path to log file (implies --log)
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31 changes: 26 additions & 5 deletions zfsbud.sh
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Expand Up @@ -14,12 +14,19 @@ config_read_file() {
}

config_get() {
working_dir="$(dirname "$(readlink -f "$0")")"
val="$(config_read_file $working_dir/zfsbud.conf "${1}")";
if [ "${val}" = "__UNDEFINED__" ]; then
val="$(config_read_file $working_dir/default.zfsbud.conf "${1}")";
if [ -v custom_config ]; then
val="$(config_read_file "$custom_config_path" "${1}")";
if [ "${val}" = "__UNDEFINED__" ]; then
die "Custom config configuration file $custom_config_path is missing or corrupt."
fi
else
working_dir="$(dirname "$(readlink -f "$0")")"
val="$(config_read_file $working_dir/zfsbud.conf "${1}")";
if [ "${val}" = "__UNDEFINED__" ]; then
die "Default configuration file 'default.zfsbud.conf' is missing or corrupt."
val="$(config_read_file $working_dir/default.zfsbud.conf "${1}")";
if [ "${val}" = "__UNDEFINED__" ]; then
die "Default configuration file 'default.zfsbud.conf' is missing or corrupt."
fi
fi
fi
printf -- "%s" "${val}";
Expand All @@ -37,6 +44,7 @@ help() {
echo " -r, --remove-old remove all but the most recent, the last common (if sending), 8 daily, 5 weekly, 13 monthly and 6 yearly source snapshots"
echo " -d, --dry-run show output without making actual changes"
echo " -p, --snapshot-prefix <prefix> use a snapshot prefix other than 'zfsbud_'"
echo " -C, --custom-config </path/to/file> custom config file"
echo " -v, --verbose increase verbosity"
echo " -l, --log log to user's home directory"
echo " -L, --log-path </path/to/file> provide path to log file (implies --log)"
Expand Down Expand Up @@ -65,8 +73,19 @@ for arg in "$@"; do
fi
shift
;;
-C | --custom-config)
if [ "$2" ] && [[ $2 != -* ]]; then
custom_config=1
custom_config_path=$2
shift
shift
else
die "--custom-config|-C requires a path string as argument."
fi
;;
-p | --snapshot-prefix)
if [ "$2" ] && [[ $2 != -* ]]; then
custom_snapshot_prefix=1
snapshot_prefix=$2
shift
shift
Expand Down Expand Up @@ -139,6 +158,8 @@ for arg in "$@"; do
esac
done

[ -v custom_config ] && [ ! -v custom_snapshot_prefix ] && snapshot_prefix=$(config_get default_snapshot_prefix)

dataset_exists() {
if [ -v remote_shell ]; then
$remote_shell "zfs list -H -o name" | grep -qx "$1" && return 0
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