#!/bin/sh -eu

# Create a `ingest-ls` compatible file listing.
# 
# Compatible with current versions of GNU and macOS `ls`.
# 
# $ scripts/ls -R /some/base/path \
#   | python -m metadex ingest-ls --remove-missing

_ls() {
    if command ls -d --time-style='+%s' . >/dev/null 2>&1; then
        # echo 'GNU'
        command ls --time-style='+%s' "$@"
    elif command ls -d -D '%s' . >/dev/null 2>&1; then
        # echo 'macOS'
        command ls -D '%s' "$@"
    else
        # echo 'unknown'
        command ls "$@"
    fi
}

_ls -lnAU "$@"