shellrc

config_dir="$HOME/.config/config_dir"

# Source a file if it exists.
function try_source {
	[ -f "$1" ] && source "$1"
}

# Test if a command exists.
function test_command {
	command -v "$1" > /dev/null
}

try_source "$config_dir/aliases"

# Set a color in the terminal palette.
# \param 1 The index in the pallete.
# \param 2 is a hexadecimal RGB color code.
function set_color {
	if [ "$TERM" = "linux" ]; then
		[ $1 -lt 16 ] && printf $'\e]P%X%s' "$1" "$2"
	else
		printf $'\e]4;%s;#%s\e\\' "$1" "$2"
	fi
}

# Set terminal colors.
set_color  0 000000 # black
set_color  1 CC0000 # red
set_color  2 009900 # green
set_color  3 CC9900 # yellow
set_color  4 0066FF # blue
set_color  5 9933CC # magenta
set_color  6 009999 # cyan
set_color  7 CCCCCC # light grey
set_color  8 333333 # dark grey
set_color  9 FF3333 # bright red
set_color 10 33FF33 # bright green
set_color 11 FFFF33 # bright yellow
set_color 12 3399CC # bright blue
set_color 13 CC33FF # bright magenta
set_color 14 00FFFF # bright cyan
set_color 15 FFFFFF # white
# Set colors for 256
set_color 17 000033 # dark blue
set_color 22 003300 # dark green
set_color 52 330000 # dark red
set_color 53 330033 # dark magenta

# Disable ctrl-q and ctrl-s.
stty start undef stop undef

# Set up dircolors.
if test_command dircolors; then
    test -r "$config_dir/dircolors" && eval "$(dircolors -b "$config_dir/dircolors")" || eval "$(dircolors -b)"
fi

# Set up additional colors for exa.
EXA_COLORS="uu=0:gu=0:un=33:gn=33"
EXA_COLORS="${EXA_COLORS}:lp=34;1"
EXA_COLORS="${EXA_COLORS}:ur=33:gr=33:tr=33"
EXA_COLORS="${EXA_COLORS}:uw=31:gw=31:tw=32"
EXA_COLORS="${EXA_COLORS}:ue=32:gx=32:tx=32"
EXA_COLORS="${EXA_COLORS}:ux=32;1"

# Highlight READMEs and license files.
EXA_COLORS="${EXA_COLORS}:README=33:README.*=33"
EXA_COLORS="${EXA_COLORS}:LICENSE=33:LICENSE.*=33"
EXA_COLORS="${EXA_COLORS}:COPYING=33:COPYING.*=33"
EXA_COLORS="${EXA_COLORS}:COPYING.LESSER=33:COPYING.LESSER.*=33"

# Build definition files.
EXA_COLORS="${EXA_COLORS}:Makefile=33;1"
EXA_COLORS="${EXA_COLORS}:Cargo.toml=33;1"
EXA_COLORS="${EXA_COLORS}:SConstruct=33;1"
EXA_COLORS="${EXA_COLORS}:CMakeLists.txt=33;1"
EXA_COLORS="${EXA_COLORS}:build.gradle=33;1"
EXA_COLORS="${EXA_COLORS}:Rakefile=33;1"
EXA_COLORS="${EXA_COLORS}:Gruntfile.js=33;1"
EXA_COLORS="${EXA_COLORS}:Gruntfile.coffee=33;1"
EXA_COLORS="${EXA_COLORS}:BUILD=33;1"
EXA_COLORS="${EXA_COLORS}:BUILD.bazel=33;1"
EXA_COLORS="${EXA_COLORS}:WORKSPACE=33;1"
EXA_COLORS="${EXA_COLORS}:build.xml=33;1"
EXA_COLORS="${EXA_COLORS}:package.xml=33;1"
export EXA_COLORS

# Enable viewing non-text files in less.
test_command lesspipe && eval "$(SHELL=/bin/sh lesspipe)"

# Create a directory and change to it.
function mkd {
	if [ $# -gt 1 ]; then
		echo "Usage: $0 [dir]" >&2
		return 13
	fi
	if [ -z $1 ]; then
		mkd "/tmp/$(date +%F-%H-%M-%S)"
	else
		mkdir -p "$1"
		cd "$1"
	fi
}

export TTY="$(tty)"
export TTY_HOST="$(who -m | awk '$NF ~ /\(.*\)/ { if ("/dev/" $2 == ENVIRON["TTY"]) { sub(/^\(/, "", $NF); sub(/\)$/, "", $NF); print $NF; exit 0; } }')"
export TTY_USER="$(ls -l "$TTY" 2>/dev/null | awk '{ print $3; exit 0; }')"

if [ -z "$TTY_USER" ]; then
	export TTY_USER="$LOGNAME"
fi

if [ "$SHELLTTY" != "$TTY" ]; then
	export SHELLTTY="$TTY"
	export NESTEDSHELLS=0
elif [ "$SHELLPID" != "$$" ]; then
	export NESTEDSHELLS=$(($NESTEDSHELLS + 1))
fi
export SHELLPID=$$

# Set up git prompt configuration.
GIT_PS1_SHOWSTASHSTATE=1
GIT_PS1_SHOWUPSTREAM=(auto verbose)

source "$config_dir/git-prompt.sh"
source "$HOME/.config/config_dir/git-prompt-path.sh"

try_source "$HOME/.shellrc.local"

# vi: ft=sh