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@daper
Last active October 18, 2016 09:45
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GIT and ColorFull Bash Prompt. Based: https://gist.github.com/31967
#!/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.
BLACK="\[\033[0;30m\]"
DARK_GRAY="\[\033[1;30m\]"
BLUE="\[\033[0;34m\]"
LIGHT_BLUE="\[\033[1;34m\]"
GREEN="\[\033[0;32m\]"
LIGHT_GREEN="\[\033[1;32m\]"
CYAN="\[\033[0;36m\]"
LIGHT_CYAN="\[\033[1;36m\]"
RED="\[\033[0;31m\]"
LIGHT_RED="\[\033[1;31m\]"
PURPLE="\[\033[0;35m\]"
LIGHT_PURPLE="\[\033[1;35m\]"
BROWN="\[\033[0;33m\]"
YELLOW="\[\033[1;33m\]"
LIGHT_GRAY="\[\033[0;37m\]"
WHITE="\[\033[1;37m\]"
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="$(LANGUAGE=en; git status 2> /dev/null)"
# Set color based on clean/staged/dirty.
if [[ ${git_status} =~ working[[:space:]](directory|tree)[[:space:]]clean ]]; then
state="${LIGHT_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[2]} == "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[2]}
else
branch_detach="detached at ([^${IFS}]*)"
[[ ${git_status} =~ ${branch_detach} ]];
branch="DETACHED-${BASH_REMATCH[1]}"
fi
# Detect GIT user
git_user_plain="$(git config user.email 2> /dev/null | sed -e 's/@.*$//g')"
if [ -n "$git_user_plain" ]; then
git_user="${git_user_plain}@"
else
git_user=""
fi
# Set the final branch string.
BRANCH="${state}(${git_user}${branch})${remote}${COLOR_NONE} "
}
# Return the prompt symbol to use, colorized based on the return value of the
# previous command.
function set_prompt_symbol () {
if [[ $EUID -eq 0 ]]; then
SYMBOL="#"
else
SYMBOL="\$"
fi
if test $1 -eq 0 ; then
PROMPT_SYMBOL="${SYMBOL}"
else
PROMPT_SYMBOL="${LIGHT_RED}${SYMBOL}${COLOR_NONE}"
fi
}
# Determine active Python virtualenv details.
function set_virtualenv () {
if test -z "$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}\u@\h \w${COLOR_NONE} ${BRANCH}${PROMPT_SYMBOL} "
}
# Tell bash to execute this function just before displaying its prompt.
PROMPT_COMMAND=set_bash_prompt
# Add this at the end of your ~/.bashrc
# Import of .bash_prompt
. <(curl -s https://gist.githubusercontent.com/daper/7c646444e244f530cbcd/raw/.bash_prompt)
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