feat(sync): refactor Nextcloud sync script with retries and argument handling
feat(sync): refactor Nextcloud sync script with retries and argument handling - Add centralized sync_directory() function - Add retry logic with configurable attempts and delay - Improve argument parsing and help output - Add validation for selected sync targets - Add support for sync marker removal (-del) - Add logging abstraction with silent/live output modes - Add dependency and credential file checks - Prevent concurrent nextcloudcmd executions - Improve error handling and script structure - Add version flag support - Standardize synchronization workflow for all folders asd
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Lucas Faber authored and Lucas Faber committed
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#!/bin/bash
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set -o pipefail
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set -u
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# -----------------------------------------------------------------------------
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# Nextcloud synchronization script
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#
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# Usage:
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# sync.sh [OPTIONS]
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#
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# -----------------------------------------------------------------------------
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SERVER="https://cloud.someoneslinux.selfhost.eu"
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SERVER="https://localhost"
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NETRC="/home/lucas/.netrc"
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SYNC_LOG="${HOME}/sync.log"
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SYNC_MARKER="/tmp/nextcloud_sync"
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MAX_RETRIES=3
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RETRY_DELAY=5
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SILENT=true
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SYNC_MEMES=1
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SYNC_AUDIOBOOKS=1
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SYNC_RECIPIES=1
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SYNC_ALINA=1
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SYNC_ALINA_DROP=1
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SYNC_WALLPAPER=1
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SYNC_CAMERA=1
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usage() {
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cat <<EOF
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Usage: ${0##*/} [OPTIONS]
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Synchronize configured directories with Nextcloud.
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Options:
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-h, --help Show this help message and exit
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-l Show synchronization output
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-d Enable Alina Share synchronization
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-c Enable Camera synchronization
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-w Enable Wallpaper synchronization
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-m Enable Memes synchronization
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-ab Enable Audiobook synchronization
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-al Enable Alina synchronization
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-all Enable all synchronization operations
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-del Remove the Nextcloud sync marker
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--version Show script version
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Examples:
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${0##*/} Run the default synchronization
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${0##*/} -l Run with live output
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${0##*/} -c -ab Sync everything except camera and audiobooks
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${0##*/} -h Show this help
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EOF
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}
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die() {
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echo "Error: $*" >&2
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echo
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usage >&2
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exit 2
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}
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run_cmd() {
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if [[ "$SILENT" == "true" ]]; then
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"$@" >"$SYNC_LOG" 2>&1
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else
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"$@" 2>&1 | tee "$SYNC_LOG"
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fi
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}
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sync_directory() {
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local name="$1"
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local remote_path="$2"
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local local_path="$3"
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echo "Sync ${name}"
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run_cmd nextcloudcmd \
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--trust \
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-n \
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--path "$remote_path" \
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"$local_path" \
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"$SERVER"
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}
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parse_args() {
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while [[ $# -gt 0 ]]; do
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case "$1" in
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-h|--help)
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usage
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exit 0
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;;
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--version)
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echo "${0##*/} 1.0"
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exit 0
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;;
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-l)
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SILENT=false
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;;
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-w)
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SYNC_WALLPAPER=0
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;;
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-d)
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SYNC_ALINA_DROP=0
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;;
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-c)
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SYNC_CAMERA=0
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;;
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-ab)
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SYNC_AUDIOBOOKS=0
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;;
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-m)
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SYNC_MEMES=0
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;;
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-al)
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SYNC_ALINA=0
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;;
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-all)
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SYNC_AUDIOBOOKS=0
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SYNC_RECIPIES=0
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SYNC_ALINA=0
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SYNC_MEMES=0
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SYNC_ALINA_DROP=0
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SYNC_WALLPAPER=0
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SYNC_CAMERA=0
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;;
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-del)
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if [[ -f "$SYNC_MARKER" ]]; then
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rm -f "$SYNC_MARKER"
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echo "Sync marker removed: $SYNC_MARKER"
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else
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echo "Sync marker does not exist: $SYNC_MARKER"
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fi
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;;
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-*)
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die "Unknown option: $1"
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;;
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*)
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die "Unexpected argument: $1"
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;;
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esac
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shift
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done
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}
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validate_sync_options() {
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if (( SYNC_AUDIOBOOKS == 1 &&
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SYNC_RECIPIES == 1 &&
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SYNC_ALINA == 1 &&
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SYNC_MEMES == 1 &&
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SYNC_ALINA_DROP == 1 &&
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SYNC_WALLPAPER == 1 &&
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SYNC_CAMERA == 1 )); then
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die "No synchronization target selected."
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fi
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}
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sync_all() {
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local ret=0
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local attempt=1
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while (( attempt <= MAX_RETRIES )); do
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ret=0
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if (( SYNC_AUDIOBOOKS == 0 )); then
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sync_directory \
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"Audiobooks" \
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"Audiobooks/" \
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"/data/nextcloud/syncuser/Audiobooks"
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(( ret += $? ))
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fi
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if (( SYNC_ALINA_DROP == 0 )); then
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sync_directory \
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"Alina Share" \
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"Alina Share/" \
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"/data/nextcloud/syncuser/alina"
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(( ret += $? ))
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fi
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if (( SYNC_MEMES == 0 )); then
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sync_directory \
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"Memes" \
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"Memes/" \
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"/data/nextcloud/syncuser/Memes"
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(( ret += $? ))
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fi
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if (( SYNC_ALINA == 0 )); then
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sync_directory \
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"Alina" \
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"Wachstum" \
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"/data/nextcloud/syncuser/Wachstum"
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(( ret += $? ))
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fi
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if (( SYNC_RECIPIES == 0 )); then
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sync_directory \
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"Recipes" \
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"RecepiesLucas" \
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"/data/nextcloud/syncuser/RecepiesLucas"
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(( ret += $? ))
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fi
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if (( SYNC_CAMERA == 0 )); then
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sync_directory \
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"Camera" \
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"Camera" \
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"/data/nextcloud/syncuser/camera"
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(( ret += $? ))
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fi
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if (( SYNC_WALLPAPER == 0 )); then
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sync_directory \
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"Wallpaper" \
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"Wallpaper" \
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"/data/nextcloud/syncuser/WallpaperChanger"
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(( ret += $? ))
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fi
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if (( ret == 0 )); then
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echo "Success"
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return 0
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fi
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if (( attempt < MAX_RETRIES )); then
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echo "Sync failed (attempt ${attempt}/${MAX_RETRIES}). Retrying in ${RETRY_DELAY}s..."
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sleep "$RETRY_DELAY"
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fi
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((attempt++))
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done
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echo "Sync failed after ${MAX_RETRIES} attempts."
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return 1
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}
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main() {
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parse_args "$@"
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validate_sync_options
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if ! command -v nextcloudcmd >/dev/null 2>&1; then
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die "nextcloudcmd is not installed or not in PATH"
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fi
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if [[ ! -r "$NETRC" ]]; then
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die "Cannot read credentials file: $NETRC"
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fi
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if pgrep -x "nextcloudcmd" >/dev/null; then
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echo "Nextcloud sync is already active, stopping."
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return 0
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fi
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echo "Starting Nextcloud synchronization..."
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sync_all
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}
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main "$@"
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exit $?
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