LibrePortal/scripts/backup/engine/kopia_backup.sh
librelad 7b32dc2e29 fix(backup): clean snapshot-id capture + accept --latest on restore
Found while testing live backups end-to-end:

- Engine backup adapters logged to stdout, so the caller's $() snapshot-id
  capture was polluted with log text — verify-after-backup then failed with
  'no matching ID' on every run. Route their log lines to stderr so stdout is
  only the id (restic/borg/kopia).
- 'libreportal app restore <app> --latest' (as the help advertises) and the
  bare 'restore <app>' both failed: --latest was passed to restic verbatim and
  unset args arrive as the literal 'empty'. Normalise both to 'latest'.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
2026-05-23 16:39:56 +01:00

63 lines
2.1 KiB
Bash

#!/bin/bash
kopiaBackupAppToLocation()
{
local idx="$1"
local app_name="$2"
local manifest_sha="$3"
local source_path="$containers_dir$app_name"
if [[ ! -d "$source_path" ]]; then
isError "Source path missing for $app_name: $source_path"
return 1
fi
kopiaEnvExport "$idx" || return 1
local host_tag="${CFG_INSTALL_NAME:-libreportal}"
local tags=("--tags" "app:$app_name" "--tags" "host:$host_tag" "--tags" "engine:libreportal")
[[ -n "$manifest_sha" ]] && tags+=("--tags" "manifest:$manifest_sha")
local loc_name
loc_name=$(resticLocationName "$idx")
isNotice "Snapshotting $app_name$loc_name (kopia)" >&2
# Kopia has no per-run --exclude; it reads .kopiaignore from the source
# tree. On the live path write the raw DB data dirs (made relative to the
# source) as ignore patterns, snapshot, then remove it so the rule never
# leaks into a later non-live backup of the same app.
local ignore_file="$source_path/.kopiaignore"
local wrote_ignore=false
if [[ -n "${backup_exclude_paths:-}" ]]; then
local rel
: | sudo tee "$ignore_file" >/dev/null
while IFS= read -r p; do
[[ -z "$p" ]] && continue
rel="/${p#"$source_path"/}"
echo "$rel" | sudo tee -a "$ignore_file" >/dev/null
done <<< "$backup_exclude_paths"
sudo chown "$docker_install_user":"$docker_install_user" "$ignore_file" 2>/dev/null
wrote_ignore=true
fi
local output
output=$(sudo -E -u "$docker_install_user" kopia snapshot create "$source_path" "${tags[@]}" --json 2>&1)
local rc=$?
[[ "$wrote_ignore" == true ]] && sudo rm -f "$ignore_file"
local snapshot_id
snapshot_id=$(echo "$output" | grep -oE '"id":\s*"[^"]+"' | head -1 | cut -d'"' -f4)
if [[ $rc -eq 0 ]]; then
isSuccessful "Backup created in $loc_name: ${snapshot_id:0:12}" >&2
echo "$snapshot_id"
else
isError "Kopia backup to $loc_name failed for $app_name" >&2
echo "$output" | tail -10 >&2
fi
kopiaEnvUnset
return $rc
}