Added bash to supported shells.

pure.bash

@@ -0,0 +1,111 @@
+# Pure
+# by Sindre Sorhus
+# https://github.com/sindresorhus/pure
+# MIT License
+
+# turns seconds into human readable time
+# 165392 => 1d 21h 56m 32s
+prompt_pure_human_time() {
+	local tmp=$1
+	local days=$(( tmp / 60 / 60 / 24 ))
+	local hours=$(( tmp / 60 / 60 % 24 ))
+	local minutes=$(( tmp / 60 % 60 ))
+	local seconds=$(( tmp % 60 ))
+	(( $days > 0 )) && echo -n "${days}d "
+	(( $hours > 0 )) && echo -n "${hours}h "
+	(( $minutes > 0 )) && echo -n "${minutes}m "
+	echo "${seconds}s"
+}
+
+# fastest possible way to check if repo is dirty
+prompt_pure_git_dirty() {
+	# check if we're in a git repo
+	command git rev-parse --is-inside-work-tree &>/dev/null || return
+	# check if it's dirty
+	[[ "$PURE_GIT_UNTRACKED_DIRTY" == 0 ]] && local umode="-uno" || local umode="-unormal"
+	command test -n "$(git status --porcelain --ignore-submodules ${umode})"
+
+	(($? == 0)) && echo '*'
+}
+
+# displays the exec time of the last command if set threshold was exceeded
+prompt_pure_cmd_exec_time() {
+	local stop=$SECONDS
+	local start=${cmd_timestamp:-$stop}
+	local elapsed=$(($stop-$start))
+	(($elapsed > ${PURE_CMD_MAX_EXEC_TIME:=5})) && prompt_pure_human_time $elapsed
+}
+
+prompt_pure_preexec() {
+	cmd_timestamp=${cmd_timestamp:-$SECONDS}
+
+	local cwd=$(pwd | sed "s|^${HOME}|~|")
+
+	local hist_ent="$(history 1)";
+	local prev_hist_ent="${last_hist_ent}";
+	local last_hist_ent="${hist_ent}";
+	if [[ "${prev_hist_ent}" != "${hist_ent}" ]]; then
+		local this_command="$(echo "${hist_ent}" | sed -e "s/^[ ]*[0-9]*[ ]*//g")";
+	else
+		local this_command="";
+	fi;
+
+	# shows the current dir and executed command in the title when a process is active
+	echo -en "\e]0;"
+	echo -nE "${cwd}: ${this_command}"
+	echo -en "\a"
+}
+
+# string length ignoring ansi escapes
+prompt_pure_string_length() {
+	echo ${#1}
+}
+
+prompt_pure_precmd() {
+	local cwd=$(pwd | sed "s|^${HOME}|~|")
+
+	# shows the full path in the title
+	echo -en "\e]0;${cwd}\a"
+
+	local prompt_pure_preprompt="\n\033[0;34m${cwd} \033[0;37m$(__git_ps1 "%s")$(prompt_pure_git_dirty) $prompt_pure_username\033[0m \033[0;33m$(prompt_pure_cmd_exec_time)\033[0m"
+	echo -e $prompt_pure_preprompt
+
+	# check async if there is anything to pull
+	(( ${PURE_GIT_PULL:-1} )) && ({
+		# check if we're in a git repo
+		command git rev-parse --is-inside-work-tree &>/dev/null &&
+		# check check if there is anything to pull
+		command git fetch &>/dev/null &&
+		# check if there is an upstream configured for this branch
+		command git rev-parse --abbrev-ref @'{u}' &>/dev/null && {
+			local arrows=''
+			(( $(command git rev-list --right-only --count HEAD...@'{u}' 2>/dev/null) > 0 )) && arrows='⇣'
+			(( $(command git rev-list --left-only --count HEAD...@'{u}' 2>/dev/null) > 0 )) && arrows+='⇡'
+			echo -en "\e7\e[A\e[1G\e[$(prompt_pure_string_length $prompt_pure_preprompt)C\033[0;36m${arrows}\033[0m\e8"
+		}
+	} &)
+
+	# reset value since `preexec` isn't always triggered
+	unset cmd_timestamp
+}
+
+prompt_pure_exit_color() {
+	[[ "$?" = '0' ]] && echo -e "\033[0;37m" || echo -e "\033[0;31m"
+}
+
+prompt_pure_setup() {
+	# prevent percentage showing up
+	# if output doesn't end with a newline
+	export PS2=''
+
+	export PROMPT_COMMAND='prompt_pure_precmd'
+	trap 'prompt_pure_preexec' DEBUG
+
+	# show username@host if logged in through SSH
+	[[ "$SSH_CONNECTION" != '' ]] && prompt_pure_username="${USER}@${HOSTNAME} "
+
+	# prompt turns red if the previous command didn't exit with 0
+	PS1='\[$(prompt_pure_exit_color)\]❯\[\033[0m\] '
+}
+
+prompt_pure_setup "$@"

readme.md

@@ -1,6 +1,6 @@
 # Pure
 
-> Pretty, minimal and fast ZSH prompt
+> Pretty, minimal and fast ZSH/Bash prompt
 
 ![screenshot](screenshot.png)
 
@@ -11,7 +11,7 @@ Most prompts are cluttered, ugly and slow. I wanted something visually pleasing
 
 ### Why?
 
-- Comes with the perfect prompt character.  
+- Comes with the perfect prompt character.
   Author went through the whole Unicode range to find it.
 - Shows `git` branch and whether it's dirty (with a `*`).
 - Indicates when you have unpushed/unpulled `git` commits with up/down arrows.
@@ -36,6 +36,8 @@ That's it. Skip to [Getting started](#getting-started).
 
 ### Manually
 
+### For zsh
+
 1. Either…
   - Clone this repo
   - add it as a submodule, or
@@ -63,6 +65,14 @@ Then install the theme there:
 $ ln -s "$PWD/pure.zsh" "$HOME/.zfunctions/prompt_pure_setup"
 ```
 
+### For bash
+
+1. Either…
+  - Clone this repo
+  - add it as a submodule, or
+  - just download `pure.bash`
+
+2. Put it on anywhere you like.
 
 ## Getting started
 
@@ -74,6 +84,10 @@ autoload -U promptinit && promptinit
 prompt pure
 ```
 
+```sh
+# .bashrc
+source "pure.bash"
+```
 
 ## Options
 
@@ -102,6 +116,15 @@ PURE_CMD_MAX_EXEC_TIME=10
 prompt pure
 ```
 
+```sh
+# .bashrc
+
+# optionally define some options
+PURE_CMD_MAX_EXEC_TIME=10
+
+source "pure.bash"
+```
+
 
 ## Tips