bash-config

# Based on AdamWhittingham/bash-config, kept only those I use, added some extra.

# Command Aliases
## ls aliases
alias ll='ls -alF'

# Homebrew aliases
alias bu='brew update && brew upgrade && brew cleanup'

## Ruby aliases
alias be='bundle exec'
alias rake='bundle exec rake'

## Git aliases
alias ga='git add'
alias gc='git commit'
alias gd='git diff'
alias gl='git_pretty_log'
alias gs='git status'

# Extra functions
function source_if_present(){
  local file="$1"
  [[ -f $file ]] && source "$file"
}

# Load Extra Things
# Run brew install bash-completion
[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion

# Git Log Niceness
_I_=' '
HASH="%C(green)%h%C(reset)"
AGE="%C(yellow)%ar%C(reset)"
AUTHOR="%C(bold blue)%an%C(reset)"
REFS="%C(bold red)%d%C(reset)"
COMMENT="%s"

FORMAT="$HASH$_I_$AGE$_I_$AUTHOR$_I_$REFS $COMMENT"

git_pretty_log() {
  git log --graph --decorate --pretty="tformat:${FORMAT}" $* |
  less -FXRS
}

function git_working_changed {
  git diff --quiet 2> /dev/null
  if [[ $? == 0 ]]; then return 1; else return 0; fi
}

function git_staging_changed {
  git diff --cached --quiet 2> /dev/null
  if [[ $? == 0 ]]; then return 1; else return 0; fi
}

function git_changed {
  $(git_working_changed) || $(git_staging_changed)
}
	
# Bind extra keys
## Bind UpArrow and DownArrow to search to autocomplete the current command
bind '"\e[A": history-search-backward'
bind '"\e[B": history-search-forward' 

# Force term type to stop all the stupidity in vim, tmux et. al. Not a good idea but fixes too many things not to do it for now.
export TERM=xterm-256color

# Set vim as default editor
export EDITOR=vim

# Get CLI file colors back in OS X
export CLICOLOR=1

# Colour Vars
bold="$(tput bold)"
reset="\001$(tput sgr0)\002"
blue="\001$bold$(tput setaf 4)\002"
cyan="\001$bold$(tput setaf 6)\002"
green="\001$bold$(tput setaf 2)\002"
purple="\001$bold$(tput setaf 5)\002"
red="\001$bold$(tput setaf 1)\002"
white="\001$bold$(tput setaf 7)\002"
yellow="\001$bold$(tput setaf 3)\002"

# Prompt Colour Functions
function user_colour {
  local colour=$green
  if [[ $(id -u) == 0 ]]; then
    colour=$red
  fi
  echo $colour
}

git_prompt() {
  if [ -n "$(__gitdir)" ]; then
    echo -e "$(git_branch_colour)($(git_branch))"
  fi
}

function git_seconds_since_commit {
  now=`date +%s`
  local last_commit=`git log --pretty=format:'%at' -1`
  local seconds=$((now-last_commit))
  echo $seconds
}

function seconds_to_minutes {
  local secs="$1"
  echo "$((${secs}/60))"
}

function git_mins_since_commit {
  echo "$(seconds_to_minutes $(git_seconds_since_commit))"
}

function colour_for_minutes {
  local minutes="$1"
  local colour=$green
  if [[ $minutes -gt 30 ]]; then colour=$red
    elif [[ $minutes -gt 15 ]]; then colour=$yellow
  fi
  echo -e "$colour"
}

function git_branch_colour {
  local colour=$blue
  if $(git_changed) ; then
    local minutes_since_commit="$(git_mins_since_commit)"
    colour=$(colour_for_minutes $minutes_since_commit)
  fi
  echo -e $colour
}

function git_branch {
  echo "$(__git_ps1 "%s")"
}

# Setup Prompt
export PS2="-> "
export PS1="$(user_colour)\u$reset@$yellow\h$reset:$purple\W$reset\$(git_prompt)$reset$PS2"