refactor.sh

#!/bin/bash

# Simple file refactoring for a c project, not intended for use, just
# preserving something I've used a couple of times.

function __refactor {
  dir=$(echo $1 | sed 's/\/$//')
  files=$(find $dir -type f -regex ".*\.[ch]")
  for file in $files; do
    new=$(basename $file | sed "s/$2/$3/")
    echo "refactoring: \"$file\" -> \"$dir/$new\""
    __fix_references $(basename $file) $new
    git mv $file $dir/$new
  done
}

function __fix_references {
  references=$(git grep "['\"/]$1['\"]" | sed 's/:.*$//' | uniq)
  for reference in $references; do
    # this is specific to macos/bsd sed
    sed -i "" "s/$1/$2/" $reference &>/dev/null
    if [[ $? -ne 0 ]]; then
      echo "failed to update references in " $reference
    fi
  done
  echo -e
}

function __usage {
  cat <<=EOF
usage: $0 <path> <from> <to>
=EOF
}

if [[ "$#" -ne 3 ]]; then
  __usage "$@"
  exit 1
fi

__refactor "$@"