Mon, 08 May 2023 02:36:32 -0500
add basic nix alternative for stubs
realpath() { local dir="$(dirname -- "$1")" local file="$(basename -- "$1")" (cd "$dir" 2>/dev/null && printf '%s/%s\n' "$(pwd -P)" "$file") } shim_filter() { local binpath='' while read binpath; do case "$binpath" in */.plenv/shims/*) plenv which $1 >/dev/null 2>&1 || continue ;; */.asdf/shims/*) asdf which $1 >/dev/null 2>&1 || continue ;; esac echo "$binpath" done } age_check() { local subject='' read subject find "$subject" -mtime -${age_limit:-90} -print } realbin() { local bn="$(basename $1)" which -a "$bn" | grep -v "$(realpath $1)" | shim_filter "$bn" | head -n 1 } stubexec() { local real_bin="$(realbin "$0" | age_check)" if [ -x "$real_bin" ]; then exec "$real_bin" "$@" fi try_nix_run "$@" install_it touch "$(realbin "$0")" # In case of no updates stubexec "$@" } has() { type "$1" >/dev/null 2>&1 } try_nix_run() { if [ "${nix_ref:-}" ] && has nix; then # FIXME: this can be GC'd and doesn't allow running alternate commands exec nix run "$nix_ref" -- "$@" fi } bina_install() { local github_repo="$1" mkdir -p ~/.local/bin cd ~/.local/bin curl -fsSL "https://bina.egoist.dev/${github_repo}?dir=." | sh cd - } stubexec "$@"