102 lines
2 KiB
Bash
102 lines
2 KiB
Bash
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set -o pipefail
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retention_days="30"
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scan_roots=(
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/
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/home
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/root
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/srv
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/opt
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/tmp
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/var/tmp
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/var/lib
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)
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root_seen() {
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local candidate="$1"
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local seen
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for seen in "${seen_roots[@]}"; do
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[ "$candidate" = "$seen" ] && return 0
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done
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return 1
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}
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has_recent_activity() {
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local path="$1"
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find "$path" \
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-xdev \
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\( -name .git -o -name .hg -o -name .svn -o -name node_modules -o -name target \) -prune \
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-o -mindepth 1 -mtime "-$retention_days" -print -quit 2>/dev/null \
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| grep -q .
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}
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is_nix_store_symlink() {
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local link="$1"
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local target
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target="$(readlink "$link" 2>/dev/null || true)"
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case "$target" in
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/nix/store/*) return 0 ;;
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*) return 1 ;;
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esac
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}
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cleanup_direnv() {
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local direnv_dir="$1"
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local project_dir
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project_dir="$(dirname "$direnv_dir")"
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if [ ! -e "$project_dir/flake.nix" ] \
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&& [ ! -e "$direnv_dir/flake-profile" ] \
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&& [ ! -e "$direnv_dir/gcroots" ]; then
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return
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fi
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if has_recent_activity "$project_dir"; then
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return
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fi
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echo "Removing stale nix-direnv cache: $direnv_dir"
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rm -rf --one-file-system "$direnv_dir"
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}
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cleanup_result_link() {
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local link="$1"
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if ! is_nix_store_symlink "$link"; then
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return
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fi
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echo "Removing stale Nix build result symlink: $link"
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rm -f "$link"
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}
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seen_roots=()
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for root in "${scan_roots[@]}"; do
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[ -d "$root" ] || continue
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root="$(readlink -f "$root")"
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root_seen "$root" && continue
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seen_roots+=("$root")
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find "$root" \
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-xdev \
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\( -path /nix -o -path /proc -o -path /sys -o -path /dev -o -path /run -o -path /boot \) -prune \
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-o -type d -name .direnv -mtime "+$retention_days" -print0 2>/dev/null \
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| while IFS= read -r -d "" direnv_dir; do
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cleanup_direnv "$direnv_dir"
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done
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find "$root" \
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-xdev \
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\( -path /nix -o -path /proc -o -path /sys -o -path /dev -o -path /run -o -path /boot \) -prune \
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-o -type l \( -name result -o -name "result-*" \) -mtime "+$retention_days" -print0 2>/dev/null \
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| while IFS= read -r -d "" link; do
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cleanup_result_link "$link"
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done
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done
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