Deletes ~/project/ rust target data older than 2 week days

clean-rust-cargo-targets

#!/usr/bin/env bash
## Deletes ~/project/ rust target data older than 2 week days

set -eu
shopt -s globstar nullglob

# 2 week days or older
find_atime="+1"
case $(date --date='+6 hours' +%u) in
  1) find_atime="+4" ;;
  6) find_atime="+2" ;;
  7) find_atime="+3" ;;
esac

match_count=$(/usr/bin/find ~/project/**/{target,target/rls}/{debug,release} -type f -ctime $find_atime -atime $find_atime | wc -l)
if [[ $match_count -gt 0 ]]; then
  echo "Removing $match_count file(s): find ~/project/**/{target,target/rls}/{debug,release} -ctime $find_atime -atime $find_atime"
  du_before=$(du -hd0 /home/alex/project/ | cut -f1)

  /usr/bin/find ~/project/**/{target,target/rls}/{debug,release} \
    -type f -ctime $find_atime -atime $find_atime -delete

  # shellcheck disable=SC2088
  echo "~/project: $du_before -> $(du -hd0 /home/alex/project/ | cut -f1)"
fi

stdout will be something like:

Removing 6658 file(s): find ~/project/**/{target,target/rls}/{debug,release} -ctime +1 -atime +1
~/project: 41G -> 36G