Insert rotations in order, not reverse order

[picsort] / pics-preprocess

#!/bin/bash

# Pass .NEF and .jpeg files as $@.
# This makes many variants of each .NEF file at different exposure levels
# and makes reduced-size versions for faster browsing.

SMALLHEIGHT=700


for f;do
  if [[ "$f" == *.NEF ]];then
    for level in {10..30};do
      mkdir -p {,sm/}"$level"
      base="$(basename "$f")"
      out="$level/${base%.NEF}.jpeg"
      exposure=$(dc <<< "2k $level 4 / 3.5-p")  # 10 to 30 -> -1 to 4 in .25 steps
      if [[ ! -s "$out" ]];then
        pics-run-ufraw "$exposure" "$f" "$out"
      fi
      if [[ ! -s "sm/$out" ]];then
        convert "$out" -geometry "x$SMALLHEIGHT" "sm/$out"
      fi
    done
  else
    if [[ ! -s "sm/$f" ]];then
      convert "$f" -geometry "x$SMALLHEIGHT" "sm/$f"
    fi
  fi
done