clean.sh

#!/usr/bin/env zsh

# CLEANS UP TEXT FILES

setopt nullglob
setopt extendedglob

# Skip vendors
for file in (^vendor/)#*(.); do

  # Match text-files
  if file -b $file | grep -q "text"; then

    # Read file into a variable
    raw=$(<$file)

    # Remove CR+LF (^M)
    raw=${raw//$'\r'}

    # Remove trailing whitespace
    raw=${raw//$'[ \t]##\n'/$'\n'}

    # Compress two or more consecutive blank lines
    raw=${raw//$'\n'(#c3,)/$'\n\n'}

    # Save result while ensuring newline at EOF
    printf "%s\n" $raw > $file

    echo $file
  fi
done