Original source (github.com)

Tags: bash examples shell dotfiles terminal-prompt github.com

Clipped on: 2017-10-08

1	# This prompt inspired by gf3, sindresorhus, alrra, and mathiasbynens.
2	# but customized to me. <3
3
4	default_username='paulirish'
5
6
7	if which thefuck > /dev/null; then
8	eval "$(thefuck --alias)"
9	fi;
10
11	# Automatically trim long paths in the prompt (requires Bash 4.x)
12	PROMPT_DIRTRIM=2
13
14	if [[ -n "$ZSH_VERSION" ]]; then # quit now if in zsh
15	return 1 2> /dev/null || exit 1;
16	fi;
17
18
19	if [[ $COLORTERM = gnome-* && $TERM = xterm ]] && infocmp gnome-256color >/dev/null 2>&1; then
20	export TERM=gnome-256color
21	elif infocmp xterm-256color >/dev/null 2>&1; then
22	export TERM=xterm-256color
23	fi
24
25
26	set_prompts() {
27
28	local black="" blue="" bold="" cyan="" green="" orange="" \
29	purple="" red="" reset="" white="" yellow=""
30
31	local dateCmd=""
32
33	if [ -x /usr/bin/tput ] && tput setaf 1 &> /dev/null; then
34
35	tput sgr0 # Reset colors
36
37	bold=$(tput bold)
38	reset=$(tput sgr0)
39
40	# Solarized colors
41	# (https://github.com/altercation/solarized/tree/master/iterm2-colors-solarized#the-values)
42	black=$(tput setaf 0)
43	blue=$(tput setaf 33)
44	cyan=$(tput setaf 37)
45	green=$(tput setaf 190)
46	orange=$(tput setaf 172)
47	purple=$(tput setaf 141)
48	red=$(tput setaf 124)
49	violet=$(tput setaf 61)
50	magenta=$(tput setaf 9)
51	white=$(tput setaf 8)
52	yellow=$(tput setaf 136)
53
54	else
55
56	bold=""
57	reset="\e[0m"
58
59	black="\e[1;30m"
60	blue="\e[1;34m"
61	cyan="\e[1;36m"
62	green="\e[1;32m"
63	orange="\e[1;33m"
64	purple="\e[1;35m"
65	red="\e[1;31m"
66	magenta="\e[1;31m"
67	violet="\e[1;35m"
68	white="\e[1;37m"
69	yellow="\e[1;33m"
70
71	fi
72
73	# Only show username/host if not default
74	function usernamehost() {
75
76	# Highlight the user name when logged in as root.
77	if [[ "${USER}" == *"root" ]]; then
78	userStyle="${red}";
79	else
80	userStyle="${magenta}";
81	fi;
82
83	userhost=""
84	userhost+="\[${userStyle}\]$USER "
85	userhost+="\[${white}\]at "
86	userhost+="\[${orange}\]$HOSTNAME "
87	userhost+="\[${white}\]in"
88
89	if [ $USER != "$default_username" ]; then echo $userhost ""; fi
90	}
91
92
93	function prompt_git() {
94	# this is >5x faster than mathias's.
95
96	# check if we're in a git repo. (fast)
97	git rev-parse --is-inside-work-tree &>/dev/null || return
98
99	# check for what branch we're on. (fast)
100	# if… HEAD isn’t a symbolic ref (typical branch),
101	# then… get a tracking remote branch or tag
102	# otherwise… get the short SHA for the latest commit
103	# lastly just give up.
104	branchName="$(git symbolic-ref --quiet --short HEAD 2> /dev/null || \
105	git describe --all --exact-match HEAD 2> /dev/null || \
106	git rev-parse --short HEAD 2> /dev/null || \
107	echo '(unknown)')";
108
109
110	## early exit for Chromium & Blink repo, as the dirty check takes ~5s
111	## also recommended (via goo.gl/wAVZLa ) : sudo sysctl kern.maxvnodes=$((512*1024))
112	repoUrl=$(git config --get remote.origin.url)
113	if grep -q chromium.googlesource.com <<<$repoUrl; then
114	dirty=" ⁂"
115	else
116
117	# check if it's dirty (slow)
118	# technique via github.com/git/git/blob/355d4e173/contrib/completion/git-prompt.sh#L472-L475
119	dirty=$(git diff --no-ext-diff --quiet --ignore-submodules --exit-code || echo -e "*")
120
121	# mathias has a few more checks some may like:
122	# github.com/mathiasbynens/dotfiles/blob/a8bd0d4300/.bash_prompt#L30-L43
123	fi
124
125
126	[ -n "${s}" ] && s=" [${s}]";
127	echo -e "${1}${branchName}${2}$dirty";
128
129	return
130	}
131
132
133
134	# ------------------------------------------------------------------
135	# | Prompt string |
136	# ------------------------------------------------------------------
137
138	PS1="\[\033]0;\w\007\]" # terminal title (set to the current working directory)
139	PS1+="\n\[$bold\]"
140	PS1+="\[$(usernamehost)\]" # username at host
141	PS1+="\[$green\]\w" # working directory
142	PS1+="\$(prompt_git \"$white on $purple\" \"$cyan\")" # git repository details
143	PS1+="\n"
144	PS1+="\[$reset$white\]\\$ \[$reset\]"
145
146	export PS1
147
148	# ------------------------------------------------------------------
149	# | Subshell prompt string |
150	# ------------------------------------------------------------------
151
152	export PS2="⚡ "
153
154	# ------------------------------------------------------------------
155	# | Debug prompt string (when using `set -x`) |
156	# ------------------------------------------------------------------
157
158	# When debugging a shell script via `set -x` this tricked-out prompt is used.
159
160	# The first character (+) is used and repeated for stack depth
161	# Then, we log the current time, filename and line number, followed by function name, followed by actual source line
162
163	# FWIW, I have spent hours attempting to get time-per-command in here, but it's not possible. ~paul
164	export PS4='+ \011\e[1;30m\t\011\e[1;34m${BASH_SOURCE}\e[0m:\e[1;36m${LINENO}\e[0m \011 ${FUNCNAME[0]:+\e[0;35m${FUNCNAME[0]}\e[1;30m()\e[0m:\011\011 }'
165
166
167	# shoutouts:
168	# https://github.com/dholm/dotshell/blob/master/.local/lib/sh/profile.sh is quite nice.
169	# zprof is also hot.
170
171	}
172
173
174
175	set_prompts
176	unset set_prompts