.functions

# Git commit random message
gcmrand() {
    git commit -m"`curl -s http://whatthecommit.com/index.txt`"
}

gcamrand() {
    git add '.'
    gcmrand
}

# List all branches which are missing upstream branch ('gone') and prompts if it should remove them or not. (not force delete!)
git_rm_all_gone_branches() {
    git fetch -p > /dev/null 2>&1
    git branch -vv | grep -v '^*' | grep ": gone]" | awk '{ print $1 " " $2 " " $3 " " $4 }'
    echo "Do you want to delete the branches above?"
    select yn in "Yes" "Yes, force-delete" "No"; do
        case $yn in
            Yes ) git branch -vv | grep ": gone]" | awk '{print $1}' | xargs -n 1 git branch -d; break;;
            "Yes, force-delete" )  git branch -vv | grep ": gone]" | awk '{print $1}' | xargs -n 1 git branch -D; break;;
            No ) return;;
        esac
    done
}

# Extract most know archives with one command
extract () {
  if [ -f $1 ] ; then
    case $1 in
      *.tar.bz2)   tar xjf $1     ;;
      *.tar.gz)    tar xzf $1     ;;
      *.bz2)       bunzip2 $1     ;;
      *.rar)       unrar e $1     ;;
      *.gz)        gunzip $1      ;;
      *.tar)       tar xf $1      ;;
      *.tbz2)      tar xjf $1     ;;
      *.tgz)       tar xzf $1     ;;
      *.zip)       unzip $1       ;;
      *.Z)         uncompress $1  ;;
      *.7z)        7z x $1        ;;
      *.sfx)       unrar e $1     ;;
      *)     echo "'$1' cannot be extracted via extract()" ;;
    esac
  else
    echo "'$1' is not a valid file"
  fi
}

# Make and cd into directory
function mkd() {
  mkdir -p "$1" && cd "$1";
}

# cd into whatever is the forefront Finder window.
cdf() {  # short for cdfinder
  cd "`osascript -e 'tell app "Finder" to POSIX path of (insertion location as alias)'`"
}

# Create a .tar.gz archive, using `zopfli`, `pigz` or `gzip` for compression
function targz() {
  local tmpFile="${@%/}.tar"
  tar -cvf "${tmpFile}" --exclude=".DS_Store" "${@}" || return 1

  size=$(
    stat -f"%z" "${tmpFile}" 2> /dev/null; # OS X `stat`
    stat -c"%s" "${tmpFile}" 2> /dev/null # GNU `stat`
  )

  local cmd=""
  if (( size < 52428800 )) && hash zopfli 2> /dev/null; then
    # the .tar file is smaller than 50 MB and Zopfli is available; use it
    cmd="zopfli"
  else
    if hash pigz 2> /dev/null; then
      cmd="pigz"
    else
      cmd="gzip"
    fi
  fi

  echo "Compressing .tar using \`${cmd}\`…"
  "${cmd}" -v "${tmpFile}" || return 1
  [ -f "${tmpFile}" ] && rm "${tmpFile}"
  echo "${tmpFile}.gz created successfully."
}

# Determine size of a file or total size of a directory
function fs() {
  if du -b /dev/null > /dev/null 2>&1; then
    local arg=-sbh
  else
    local arg=-sh
  fi
  if [[ -n "$@" ]]; then
    du $arg -- "$@"
  else
    du $arg .[^.]* *
  fi
}