# Don't put duplicate lines in the history
export HISTCONTROL=ignoreboth:erasedups

# Set history length
HISTFILESIZE=1000000000
HISTSIZE=1000000

# Append to the history file, don't overwrite it
shopt -s histappend
# Check the window size after each command and, if necessary, update the values of LINES and COLUMNS
shopt -s checkwinsize
# Autocorrect typos in path names when using `cd`
shopt -s cdspell
# Save all lines of a multiple-line command in the same history entry (allows easy re-editing of multi-line commands)
shopt -s cmdhist
# Do not autocomplete when accidentally pressing Tab on an empty line. (It takes forever and yields "Display all 15 gazillion possibilites?")
shopt -s no_empty_cmd_completion

# Do not overwrite files when redirecting using ">". Note that you can still override this with ">|"
set -o noclobber

# Enable some Bash 4 features when possible:
# * `autocd`, e.g. `**/qux` will enter `./foo/bar/baz/qux`
# * Recursive globbing, e.g. `echo **/*.txt`
for option in autocd globstar; do
	shopt -s "$option" 2> /dev/null
done

# Locale
export LC_ALL=en_US.UTF-8
export LANG="en_US"


# Prepend $PATH without duplicates
function _prepend_path() {
	if ! $( echo "$PATH" | tr ":" "\n" | grep -qx "$1" ) ; then
		PATH="$1:$PATH"
	fi
}

# Construct $PATH
PATH='/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin'
[ -d /usr/texbin ] && _prepend_path "/usr/texbin"
[ -d /usr/local/sbin ] && _prepend_path "/usr/local/sbin"
[ -d /usr/local/bin ] && _prepend_path "/usr/local/bin"
[ -d /usr/local/share/npm/bin ] && _prepend_path "/usr/local/share/npm/bin"
[ -d /usr/local/opt/ruby/bin ] && _prepend_path "/usr/local/opt/ruby/bin"
[ -d /usr/local/share/python ] && _prepend_path "/usr/local/share/python"
command -v brew >/dev/null 2>&1 && _prepend_path "$(brew --prefix coreutils)/libexec/gnubin"
[ -d ~/dotfiles/bin ] && _prepend_path "$HOME/dotfiles/bin"
[ -d ~/bin ] && _prepend_path "$HOME/bin"
export PATH

# Colors
RED="$(tput setaf 1)"
GREEN="$(tput setaf 2)"
YELLOW="$(tput setaf 3)"
BLUE="$(tput setaf 4)"
MAGENTA="$(tput setaf 5)"
CYAN="$(tput setaf 6)"
WHITE="$(tput setaf 7)"
GRAY="$(tput setaf 8)"
BOLD="$(tput bold)"
UNDERLINE="$(tput sgr 0 1)"
INVERT="$(tput sgr 1 0)"
NOCOLOR="$(tput sgr0)"

# vim is default editor
export EDITOR=`which vim`

# Load prompt and aliases
for file in ~/dotfiles/includes/bash_{prompt,aliases,functions,git}.bash; do
	[ -r "$file" ] && source "$file"
done
unset file

# If possible, add tab completion for many commands
[ -f /etc/bash_completion ] && source /etc/bash_completion

# Bash completion (installed via Homebrew; source after `brew` is added to PATH)
command -v brew >/dev/null 2>&1 && [ -r "$(brew --prefix)/etc/bash_completion" ] && source "$(brew --prefix)/etc/bash_completion"

# Add tab completion for SSH hostnames based on ~/.ssh/config, ignoring wildcards
function _ssh_reload_autocomplete() {
	[ -e "~/.ssh/config" ] && complete -o "default" -o "nospace" -W "$(grep "^Host" ~/.ssh/config | grep -v "[?*]" | cut -d " " -f2)" scp sftp ssh
}
_ssh_reload_autocomplete

# Grunt completion
command -v grunt >/dev/null 2>&1 && eval "$(grunt --completion=bash)"

# Tamia generator completion
function _tamia_autocomplete() {
	# List of subgenerators
	local available=$(for file in /usr/local/share/npm/lib/node_modules/generator-tamia/*/index.js; do echo $file | cut -d / -f 9; done)
	# The word fragment
	local word=${COMP_WORDS[COMP_CWORD]}
	# Don’t attempt to filter w/`grep` if `$word` is empty
	local filtered=$(if [ -z "$word" ]; then echo "$available"; else echo "$available" | grep $word; fi)
 
	COMPREPLY=($filtered)
}
command -v yo >/dev/null 2>&1 && complete -F _tamia_autocomplete tm

# Tell ls to be colourful
export CLICOLOR=1

# Tell grep to highlight matches
export GREP_OPTIONS='--color=auto'

# Make less the default pager, and specify some useful defaults.
less_options=(
	# If the entire text fits on one screen, just show it and quit. (Be more
	# like "cat" and less like "more".)
	--quit-if-one-screen

	# Do not clear the screen first.
	--no-init

	# Like "smartcase" in Vim: ignore case unless the search pattern is mixed.
	--ignore-case

	# Do not automatically wrap long lines.
	--chop-long-lines

	# Allow ANSI colour escapes, but no other escapes.
	--RAW-CONTROL-CHARS

	# Do not ring the bell when trying to scroll past the end of the buffer.
	--quiet

	# Do not complain when we are on a dumb terminal.
	--dumb
);
export LESS="${less_options[*]}"
unset less_options
export PAGER='less'

# Load extra (private) settings
[ -f ~/.bashlocal ] && source ~/.bashlocal