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MrbWebLibre/scripts/update-assets.sh
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#!/usr/bin/env bash
#
# Unified asset updater — downloads all external data files used by the app.
# Usage: ./scripts/update-assets.sh [--group bangs|bridges|url-cleaner|url-shorteners] ...
# Without --group flags, all groups are updated.
set -euo pipefail
REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
MAX_RETRIES=3
RETRY_DELAY=5
CURL_TIMEOUT=30
# ── helpers ──────────────────────────────────────────────────────────────────
log() { printf '[INFO] %s\n' "$*"; }
err() { printf '[ERROR] %s\n' "$*" >&2; }
# Fetch a URL to a local path with retries and atomic write.
# Uses a temp file so a failed download never clobbers an existing asset.
fetch() {
local url="$1" dest="$2"
local tmp="${dest}.tmp.$$"
mkdir -p "$(dirname "$dest")"
for attempt in $(seq 1 "$MAX_RETRIES"); do
log "Attempt $attempt/$MAX_RETRIES: $url"
if curl --proto '=https' --tlsv1.2 -fsSL \
--max-time "$CURL_TIMEOUT" \
--retry 0 \
-o "$tmp" "$url"; then
# Basic sanity: reject empty files
if [ ! -s "$tmp" ]; then
err "Downloaded file is empty: $url"
rm -f "$tmp"
return 1
fi
mv "$tmp" "$dest"
log "OK: $dest"
return 0
fi
err "Failed (attempt $attempt/$MAX_RETRIES): $url"
rm -f "$tmp"
[ "$attempt" -lt "$MAX_RETRIES" ] && sleep "$RETRY_DELAY"
done
err "Giving up after $MAX_RETRIES attempts: $url"
return 1
}
# ── asset groups ─────────────────────────────────────────────────────────────
update_bangs() {
local dir="$REPO_ROOT/apps/weblibre/assets/bangs"
log "Updating bangs..."
fetch "https://raw.githubusercontent.com/FaFre/bangs/main/data/bangs.json" \
"$dir/bangs.json"
fetch "https://raw.githubusercontent.com/FaFre/bangs/main/data/kagi_bangs.json" \
"$dir/kagi_bangs.json"
fetch "https://raw.githubusercontent.com/FaFre/bangs/refs/heads/custom/data/custom.json" \
"$dir/custom.json"
date -u --iso-8601=seconds > "$dir/last_sync.txt"
log "Bangs sync completed at $(cat "$dir/last_sync.txt")"
}
update_bridges() {
local dir="$REPO_ROOT/apps/weblibre/assets/preferences"
log "Updating Tor bridges..."
fetch "https://bridges.torproject.org/moat/circumvention/builtin" \
"$dir/builtin-bridges.json"
}
update_url_cleaner() {
local dir="$REPO_ROOT/apps/weblibre/assets/preferences"
log "Updating URL cleaner catalog..."
fetch "https://rules2.clearurls.xyz/data.minify.json" \
"$dir/url_cleaner_data.minify.json"
}
update_url_shorteners() {
local dir="$REPO_ROOT/apps/weblibre/assets/preferences"
log "Updating URL shortener list..."
fetch "https://raw.githubusercontent.com/MISP/misp-warninglists/refs/heads/main/lists/url-shortener/list.json" \
"$dir/url-shortener-list.json"
}
update_ublock() {
local dir="$REPO_ROOT/apps/weblibre/assets/ublock"
log "Updating uBlock Origin assets..."
fetch "https://raw.githubusercontent.com/gorhill/uBlock/master/assets/assets.json" \
"$dir/assets.json"
date -u --iso-8601=seconds > "$dir/last_sync.txt"
log "uBlock assets sync completed at $(cat "$dir/last_sync.txt")"
}
# ── main ─────────────────────────────────────────────────────────────────────
ALL_GROUPS=(bangs bridges url-cleaner url-shorteners ublock)
SELECTED_GROUPS=()
while [[ $# -gt 0 ]]; do
case "$1" in
--group) SELECTED_GROUPS+=("$2"); shift 2 ;;
*) err "Unknown option: $1"; exit 1 ;;
esac
done
if [ ${#SELECTED_GROUPS[@]} -eq 0 ]; then
SELECTED_GROUPS=("${ALL_GROUPS[@]}")
fi
FAILURES=0
for group in "${SELECTED_GROUPS[@]}"; do
case "$group" in
bangs) update_bangs || ((FAILURES++)) ;;
bridges) update_bridges || ((FAILURES++)) ;;
url-cleaner) update_url_cleaner || ((FAILURES++)) ;;
url-shorteners) update_url_shorteners || ((FAILURES++)) ;;
ublock) update_ublock || ((FAILURES++)) ;;
*) err "Unknown group: $group"; ((FAILURES++)) ;;
esac
done
if [ "$FAILURES" -gt 0 ]; then
err "$FAILURES group(s) failed"
exit 1
fi
log "All assets updated successfully."