Install dotfiles

install.sh

#!/usr/bin/env bash

# Installs symlinks to dotfiles into the $HOME directory.
#
# Flags:
#
#   -n   Dry run
#   -f   Force – overwrite files in $HOME if they exist
#
# Inspired by https://github.com/mplacona/dotfiles/blob/65329dc/bootstrap.sh but quite different in the end.

# ----------------
# Parse flags

flag_force=''
flag_dryrun=''

while getopts 'nf' flag; do
  case "${flag}" in
    n) flag_dryrun=true ;;
    f) flag_force=true ;;
    *) echo 'Invalid flag'; exit 1 ;;
  esac
done

# ----------------
# Let's go!

cd "$(dirname "$0")" || exit 1

some_files_skipped=false

for file in .*; do

  # Note that .gitignore is _not_ symlinked to $HOME; it's only for the purpose of this repo
  for ignoredFile in {.,..,.git,.DS_Store,.gitignore}; do
    [[ $file == "$ignoredFile" ]] && continue 2
  done

  target="$HOME/$file"

  if [[ -e "$target" ]]; then
    if [[ $flag_force = true ]]; then
      echo "Overwriting $target"
      rm "$target"
      # Symlink will be created later
    else
      echo "File $target already exists, skipping"
      some_files_skipped=true
      continue
    fi

  fi

  file_absolute=$(pwd)/$file

  if [[ $flag_dryrun = true ]]; then
    echo "Would symlink $file_absolute as $target"
  else
    ln -s "$file_absolute" "$target"
    echo "Symlinked $file_absolute as $target"
  fi

done

if [[ $some_files_skipped = true ]]; then
  PURPLE='\033[1;35m'
  CLEAR='\033[0m'
  echo -e "\n${PURPLE}Run with \`-f\` to re-create the files above as symlinks.${CLEAR}"
fi