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Set color bash prompt according to active virtualenv, git branch and return status of last command.
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#!/bin/bash | |
# | |
# DESCRIPTION: | |
# | |
# Set the bash prompt according to: | |
# * the active virtualenv | |
# * the branch/status of the current git repository | |
# * the return value of the previous command | |
# * the fact you just came from Windows and are used to having newlines in | |
# your prompts. | |
# | |
# USAGE: | |
# | |
# 1. Save this file as ~/.bash_prompt | |
# 2. Add the following line to the end of your ~/.bashrc or ~/.bash_profile: | |
# . ~/.bash_prompt | |
# | |
# LINEAGE: | |
# | |
# Based on work by woods | |
# | |
# https://gist.github.com/31967 | |
# The various escape codes that we can use to color our prompt. | |
RED="\[\033[0;31m\]" | |
YELLOW="\[\033[1;33m\]" | |
GREEN="\[\033[0;32m\]" | |
BLUE="\[\033[1;34m\]" | |
LIGHT_RED="\[\033[1;31m\]" | |
LIGHT_GREEN="\[\033[1;32m\]" | |
WHITE="\[\033[1;37m\]" | |
LIGHT_GRAY="\[\033[0;37m\]" | |
COLOR_NONE="\[\e[0m\]" | |
# Detect whether the current directory is a git repository. | |
function is_git_repository { | |
git branch > /dev/null 2>&1 | |
} | |
# Determine the branch/state information for this git repository. | |
function set_git_branch { | |
# Capture the output of the "git status" command. | |
git_status="$(git status 2> /dev/null)" | |
# Set color based on clean/staged/dirty. | |
if [[ ${git_status} =~ "working directory clean" ]]; then | |
state="${GREEN}" | |
elif [[ ${git_status} =~ "Changes to be committed" ]]; then | |
state="${YELLOW}" | |
else | |
state="${LIGHT_RED}" | |
fi | |
# Set arrow icon based on status against remote. | |
remote_pattern="# Your branch is (.*) of" | |
if [[ ${git_status} =~ ${remote_pattern} ]]; then | |
if [[ ${BASH_REMATCH[1]} == "ahead" ]]; then | |
remote="↑" | |
else | |
remote="↓" | |
fi | |
else | |
remote="" | |
fi | |
diverge_pattern="# Your branch and (.*) have diverged" | |
if [[ ${git_status} =~ ${diverge_pattern} ]]; then | |
remote="↕" | |
fi | |
# Get the name of the branch. | |
branch_pattern="^# On branch ([^${IFS}]*)" | |
if [[ ${git_status} =~ ${branch_pattern} ]]; then | |
branch=${BASH_REMATCH[1]} | |
fi | |
# Set the final branch string. | |
BRANCH="${state}(${branch})${remote}${COLOR_NONE} " | |
} | |
# Return the prompt symbol to use, colorized based on the return value of the | |
# previous command. | |
function set_prompt_symbol () { | |
if test $1 -eq 0 ; then | |
PROMPT_SYMBOL="\$" | |
else | |
PROMPT_SYMBOL="${LIGHT_RED}\$${COLOR_NONE}" | |
fi | |
} | |
# Determine active Python virtualenv details. | |
function set_virtualenv () { | |
if test -z "$VIRTUAL_ENV" ; then | |
PYTHON_VIRTUALENV="" | |
else | |
PYTHON_VIRTUALENV="${BLUE}[`basename \"$VIRTUAL_ENV\"`]${COLOR_NONE} " | |
fi | |
} | |
# Set the full bash prompt. | |
function set_bash_prompt () { | |
# Set the PROMPT_SYMBOL variable. We do this first so we don't lose the | |
# return value of the last command. | |
set_prompt_symbol $? | |
# Set the PYTHON_VIRTUALENV variable. | |
set_virtualenv | |
# Set the BRANCH variable. | |
if is_git_repository ; then | |
set_git_branch | |
else | |
BRANCH='' | |
fi | |
# Set the bash prompt variable. | |
PS1=" | |
${PYTHON_VIRTUALENV}${GREEN}\u@\h ${YELLOW}\w${COLOR_NONE} ${BRANCH} | |
${PROMPT_SYMBOL} " | |
} | |
# Tell bash to execute this function just before displaying its prompt. | |
PROMPT_COMMAND=set_bash_prompt |
The big issue with this is that it's incompatible with conda or any other prompt changers.
For all languages of git
branch=`git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'`
Excellent work, adding docker-machine to the prompt
# Add docker-machine to terminal prompt
# check if `docker-machine` command exists
if command -v docker-machine > /dev/null; then
# fetch the first running machine name
local machine=$(docker-machine ls | grep "Running" | head -n 1 | awk '{ print $1 }')
if [ "$machine" == "" ]; then
DOCKER_MACHINE=''
else
DOCKER_MACHINE="$YELLOW\$(__docker_machine_ps1) "
fi
fi
# Set the bash prompt variable.
PS1="
${DOCKER_MACHINE}${PYTHON_VIRTUALENV}${BRANCH}${GREEN}\u@\h${BLUE}\w${COLOR_NONE}
${PROMPT_SYMBOL} "
}
Regards!
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Updated version with
pyenv
support: https://gist.github.com/romanlevin/5e9422045bb6a5eb6558cbe371cd8635