cleanups

scripts/lib.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-PACKAGING_REVISION=2
+PACKAGING_REVISION=3
 DATA_DIR=${DATA_DIR:-/var/lib/rustbox-package-builder}
 
 log() { printf '%s %s\n' "$(date -u '+%Y-%m-%dT%H:%M:%SZ')" "$*"; }
@@ -13,3 +13,53 @@ print(json.dumps(sys.argv[1]))
 PY
 }
 atomic_write() { local path=$1 tmp="${path}.tmp.$$"; cat > "$tmp"; mv -f "$tmp" "$path"; }
+
+is_true() {
+  case "${1:-}" in
+    1|true|TRUE|yes|YES|on|ON) return 0 ;;
+    *) return 1 ;;
+  esac
+}
+
+require_positive_integer() {
+  local name=$1 value=$2
+  [[ "$value" =~ ^[1-9][0-9]*$ ]] || fatal "$name must be a positive integer"
+}
+
+prune_package_files() {
+  local directory=$1 pattern=$2 keep=$3
+  require_positive_integer PACKAGE_RETENTION "$keep"
+  [[ -d "$directory" ]] || return 0
+
+  mapfile -t stale < <(
+    find "$directory" -maxdepth 1 -type f -name "$pattern" -printf '%T@ %p\n' \
+      | sort -nr \
+      | awk -v keep="$keep" 'NR>keep {$1=""; sub(/^ /,""); print}'
+  )
+
+  local path
+  for path in "${stale[@]}"; do
+    [[ -n "$path" ]] || continue
+    log "package retention: removing $path"
+    rm -f -- "$path"
+  done
+}
+
+prune_release_dirs() {
+  local releases_dir=$1 keep=$2 protected=${3:-}
+  require_positive_integer RELEASE_RETENTION "$keep"
+  [[ -d "$releases_dir" ]] || return 0
+
+  mapfile -t stale < <(
+    find "$releases_dir" -mindepth 1 -maxdepth 1 -type d -printf '%T@ %p\n' \
+      | sort -nr \
+      | awk -v keep="$keep" 'NR>keep {$1=""; sub(/^ /,""); print}'
+  )
+
+  local path
+  for path in "${stale[@]}"; do
+    [[ -n "$path" && "$path" != "$protected" ]] || continue
+    log "release retention: removing $path"
+    rm -rf -- "$path"
+  done
+}