Bash: Unify color output. Prompt refactoring.

includes/bash_functions.bash

@@ -1,3 +1,8 @@
+# Print cyan underlined header 
+function header() {
+	echo -e "$UNDERLINE$CYAN$1$NOCOLOR"
+}
+
 # Create a new directory and enter it
 function md() {
 	mkdir -p "$@" && cd "$@"
@@ -61,22 +66,13 @@ function extract() {
 # https://github.com/steckel/Git-Nyan-Graph/blob/master/nyan.sh
 # If you want big animated version: `telnet miku.acm.uiuc.edu`
 function nyan() {
-	e='\033'
-	RESET="$e[0m"
-	BOLD="$e[1m"
-	CYAN="$e[0;96m"
-	RED="$e[0;91m"
-	YELLOW="$e[0;93m"
-	GREEN="$e[0;92m"
 	echo
 	echo -en $RED'-_-_-_-_-_-_-_'
-	echo -e $RESET$BOLD',------,'$RESET
+	echo -e $NOCOLOR$BOLD',------,'$NOCOLOR
 	echo -en $YELLOW'_-_-_-_-_-_-_-'
-	echo -e $RESET$BOLD'|   /\_/\\'$RESET
 	echo -en $GREEN'-_-_-_-_-_-_-'
-	echo -e $RESET$BOLD'~|__( ^ .^)'$RESET
+	echo -e $NOCOLOR$BOLD'~|__( ^ .^)'$NOCOLOR
 	echo -en $CYAN'-_-_-_-_-_-_-'
-	echo -e $RESET$BOLD'""  ""'$RESET
 	echo
 }
 
@@ -98,8 +94,7 @@ add-ssh-host() {
 	hostname=$2
 	identifier=$3
 
-	if [[ "$identifier" == "" ]] || [[ "$username" == "" ]] || [[ "$hostname" == "" ]]
+	if [[ "$identifier" == "" ]] || [[ "$username" == "" ]] || [[ "$hostname" == "" ]]; then
-	then
 		echo "Usage: configure_ssh_host <username> <hostname> <identifier>"
 	else
 		if [ ! -f "$HOME/.ssh/$identifier.id_rsa" ]; then
@@ -156,8 +151,7 @@ function git-bitbucket() {
 # USAGE: git-fork <original-author>
 function git-fork() {
 	user=$1
-	if [[ "$user" == "" ]]
+	if [[ "$user" == "" ]]; then
-	then
 		echo "Usage: git-fork <original-author>"
 	else
 		repo=`basename "$(pwd)"`

includes/bash_prompt.bash

@@ -1,38 +1,15 @@
 # Inspired by: https://github.com/dreadatour/dotfiles/blob/master/.bash_profile
 
-# Setup color variables
+# User color
-color_is_on=
+case $(id -u) in
-color_red=
+	0) USER_COLOR=$RED ;;  # root
-color_green=
+	*) USER_COLOR=$GREEN ;;
-color_yellow=
+esac
-color_blue=
-color_white=
-color_gray=
-color_bg_red=
-color_off=
-if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
-	color_is_on=true
-	color_red="\[$(/usr/bin/tput setaf 1)\]"
-	color_green="\[$(/usr/bin/tput setaf 2)\]"
-	color_yellow="\[$(/usr/bin/tput setaf 3)\]"
-	color_blue="\[$(/usr/bin/tput setaf 6)\]"
-	color_white="\[$(/usr/bin/tput setaf 7)\]"
-	color_gray="\[$(/usr/bin/tput setaf 8)\]"
-	color_off="\[$(/usr/bin/tput sgr0)\]"
-	color_error="$(/usr/bin/tput setab 1)$(/usr/bin/tput setaf 7)"
-	color_error_off="$(/usr/bin/tput sgr0)"
 
-	# Set user color
+# Some kind of optimization - check if Git installed only on config load
-	case `id -u` in
-		0) color_user=$color_red ;;
-		*) color_user=$color_green ;;
-	esac
-fi
-
-# Some kind of optimization - check if git installed only on config load
 PS1_GIT_BIN=$(which git 2>/dev/null)
 
-function prompt_command {
+function prompt_command() {
 	local PS1_GIT=
 	local GIT_BRANCH=
 	local GIT_DIRTY=
@@ -45,26 +22,26 @@ function prompt_command {
 		PWDNAME="~${PWD:${#HOME}}"
 	fi
 
-	# Parse git status and get git variables
+	# Parse Git status and get Git variables
 	if [[ ! -z "$PS1_GIT_BIN" ]]; then
-		# Check if we are in git repo
+		# Check if we are in Git repo
 		local CUR_DIR="$PWD"
-		while [[ ! -d "${CUR_DIR}/.git" ]] && [[ ! "${CUR_DIR}" == "/" ]] && [[ ! "${CUR_DIR}" == "~" ]] && [[ ! "${CUR_DIR}" == "" ]]; do CUR_DIR="${CUR_DIR%/*}"; done
+		while [[ ! -d "$CUR_DIR/.git" ]] && [[ ! "$CUR_DIR" == "/" ]] && [[ ! "$CUR_DIR" == "~" ]] && [[ ! "$CUR_DIR" == "" ]]; do CUR_DIR="${CUR_DIR%/*}"; done
-		if [[ -d "${CUR_DIR}/.git" ]]; then
+		if [[ -d "$CUR_DIR/.git" ]]; then
-			# Get git branch
+			# Get Git branch
 			GIT_BRANCH="$($PS1_GIT_BIN symbolic-ref HEAD 2>/dev/null)"
 			if [[ ! -z "$GIT_BRANCH" ]]; then
 				GIT_BRANCH="${GIT_BRANCH#refs/heads/}"
 
-				# Get git status
+				# Get Git status
 				local GIT_STATUS="$($PS1_GIT_BIN status --porcelain 2>/dev/null)"
 				[[ -n "$GIT_STATUS" ]] && GIT_DIRTY=1
 			fi
 		fi
 	fi
 
-	# Build B&W prompt for git
+	# Build B&W prompt for Git
-	[[ ! -z "$GIT_BRANCH" ]] && PS1_GIT=" #${GIT_BRANCH}"
+	[[ ! -z "$GIT_BRANCH" ]] && PS1_GIT=" #$GIT_BRANCH"
 
 	# Calculate prompt length
 	local PS1_length=$((${#USER}+${#HOSTNAME}+${#PWDNAME}+${#PS1_GIT}+3))
@@ -75,35 +52,27 @@ function prompt_command {
 		# Strip working directory name
 		PWDNAME="...${PWDNAME:$(($PS1_length-$COLUMNS+3))}"
 	else
-		# Else calculate fillsize
+		# Calculate fillsize
 		local fillsize=$(($COLUMNS-$PS1_length))
-		FILL="$color_gray"
+		FILL=$GRAY
-		while [[ $fillsize -gt 0 ]]; do FILL="${FILL}─"; fillsize=$(($fillsize-1)); done
+		while [[ $fillsize -gt 0 ]]; do FILL=$FILL"─"; fillsize=$(($fillsize-1)); done
-		FILL="${FILL}${color_off}"
+		FILL=$FILL$NOCOLOR
 	fi
 
-	if $color_is_on; then
 	# Git status for prompt
 	if [ ! -z "$GIT_BRANCH" ]; then
-			if [ -z "$GIT_DIRTY" ]; then
+		local BRANCH_COLOR=$GREEN
-				PS1_GIT=" #${color_green}${GIT_BRANCH}${color_off}"
+		[ ! -z $GIT_DIRTY ] && BRANCH_COLOR=$RED
-			else
+		PS1_GIT=" #$BRANCH_COLOR$GIT_BRANCH$NOCOLOR"
-				PS1_GIT=" #${color_red}${GIT_BRANCH}${color_off}"
-			fi
-		fi
 	fi
 
 	# Set new color prompt
-	PS1="${color_user}${USER}${color_off}@${color_yellow}${HOSTNAME}${color_off}:${color_white}${PWDNAME}${color_off}${PS1_GIT} ${FILL}\n→ "
+	PS1="$USER_COLOR$USER$NOCOLOR@$YELLOW$HOSTNAME$NOCOLOR:$WHITE$PWDNAME$NOCOLOR$PS1_GIT $FILL\n→ "
-
-	# Get cursor position and add new line if we're not in first column
-	echo -en "\033[6n" && read -sdR CURPOS
-	[[ "${CURPOS##*;}" -gt 1 ]] && echo "${color_error}●${color_error_off}"
 
 	# Terminal title
-	TITLE=`basename ${PWDNAME}`
+	local TITLE=$(basename $PWDNAME)
-	[ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && TITLE="${TITLE} \xE2\x80\x94 ${HOSTNAME}"
+	[ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && TITLE="$TITLE \xE2\x80\x94 $HOSTNAME"
-	echo -ne "\033]0;${TITLE}"; echo -ne "\007"
+	echo -ne "\033]0;$TITLE"; echo -ne "\007"
 }
 
 # Set prompt command (title update and color prompt)

tilde/bash_profile.bash

@@ -37,6 +37,20 @@ PATH="/usr/local/bin:$PATH"
 command -v brew >/dev/null 2>&1 && PATH="$(brew --prefix coreutils)/libexec/gnubin:$PATH"
 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)"
+
 # Load prompt and aliases
 for file in ~/dotfiles/includes/{bash_prompt,bash_aliases,bash_functions}; do
 	[ -r "$file.bash" ] && source "$file.bash"