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add stats to backups

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blake
2025-10-13 17:27:13 -05:00
parent 2f627902f3
commit 30302af17b
3 changed files with 65 additions and 69 deletions
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119
modules/system/backups.nix
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@@ -54,29 +54,56 @@ in
# EnvironmentFile = config.modules.system.backups.passphraseFile;
# the actual script borg is using
ExecStart = pkgs.writeShellScript "borg-backup" ''
set -euo pipefail
export BORG_PASSPHRASE="$(cat ${cfg.passwd_file})"
export BORG_REPO="${cfg.repo}"
timestamp="$(date +'%Y-%m-%d_%H:%M:%S')"
mode=${cfg.mode}
backup() {
set -euo pipefail
export BORG_PASSPHRASE="$(cat ${cfg.passwd_file})"
export BORG_REPO="${cfg.repo}"
timestamp="$(date +'%Y-%m-%d_%H:%M:%S')"
mode=${cfg.mode}
# init repo in needed
if ! borg info "$BORG_REPO" >/dev/null 2>&1; then
echo "Initializing Borg repo at $BORG_REPO"
borg init --encryption=repokey "$BORG_REPO"
fi
# init repo in needed
if ! borg info "$BORG_REPO" >/dev/null 2>&1; then
echo "Initializing Borg repo at $BORG_REPO"
borg init --encryption=repokey "$BORG_REPO"
fi
borg break-lock "$BORG_REPO" || true
borg break-lock "$BORG_REPO" || true
echo "starting backup at $timestamp"
echo "starting backup at $timestamp"
if [ "$mode" = "split" ]; then
# loop for each backup
${lib.concatStringsSep "\n\n" (lib.mapAttrsToList (bak_name: bak_paths:
''
echo "------------ Backing up ${bak_name} ------------"
archive="$timestamp-${bak_name}"
echo "backing up: ${lib.concatStringsSep " " bak_paths.paths} → $archive"
if [ "$mode" = "split" ]; then
# loop for each backup
${lib.concatStringsSep "\n\n" (lib.mapAttrsToList (bak_name: bak_paths:
''
echo "------------ Backing up ${bak_name} ------------"
archive="$timestamp-${bak_name}"
echo "backing up: ${lib.concatStringsSep " " bak_paths.paths} → $archive"
borg create \
--verbose \
--filter AME \
--list \
--stats \
--show-rc \
--compression lzma,9 \
"$BORG_REPO::$archive" \
${lib.concatStringsSep " " bak_paths.paths}
echo "pruning old backups for ${bak_name}..."
borg prune -v --list "$BORG_REPO" \
--glob-archives "*-${bak_name}" \
--keep-daily=7 \
--keep-weekly=52 \
--keep-monthly=-1
echo "backup run complete at \"$BORG_REPO::$archive\""
''
) cfg.baks)}
exit 0
else
# flatten all paths from cfg.baks into one big list
all_paths="${
lib.concatStringsSep " "
(lib.flatten
(lib.mapAttrsToList (_: bak: bak.paths) cfg.baks))
}"
borg create \
--verbose \
--filter AME \
@@ -84,44 +111,24 @@ in
--stats \
--show-rc \
--compression lzma,9 \
"$BORG_REPO::$archive" \
${lib.concatStringsSep " " bak_paths.paths}
echo "pruning old backups for ${bak_name}..."
borg prune -v --list "$BORG_REPO" \
--glob-archives "*-${bak_name}" \
--keep-daily=7 \
--keep-weekly=52 \
--keep-monthly=-1
echo "backup run complete at \"$BORG_REPO::$archive\""
''
) cfg.baks)}
exit 0
else
# flatten all paths from cfg.baks into one big list
all_paths="${
lib.concatStringsSep " "
(lib.flatten
(lib.mapAttrsToList (_: bak: bak.paths) cfg.baks))
}"
borg create \
--verbose \
--filter AME \
--list \
--stats \
--show-rc \
--compression lzma,9 \
"$BORG_REPO::$timestamp-${toString config.networking.hostName}" \
$all_paths
"$BORG_REPO::$timestamp-${toString config.networking.hostName}" \
$all_paths
echo "pruning old backups for ${toString config.networking.hostName}..."
borg prune -v --list "$BORG_REPO" \
--glob-archives "*-${toString config.networking.hostName}" \
--keep-daily=7 \
--keep-weekly=52 \
--keep-monthly=-1
echo "backup run complete at \"$BORG_REPO::${toString config.networking.hostName}\""
exit 0
fi
echo "pruning old backups for ${toString config.networking.hostName}..."
borg prune -v --list "$BORG_REPO" \
--glob-archives "*-${toString config.networking.hostName}" \
--keep-daily=7 \
--keep-weekly=52 \
--keep-monthly=-1
echo "backup run complete at \"$BORG_REPO::${toString config.networking.hostName}\""
exit 0
fi
}
time -f "\
Real time: %E\n\
User CPU: %U\n\
Sys CPU: %S\n\
Max memory: %M KB" backup
'';
};
};