Display git branch in bash prompt

.bashrc

# If you work with git, you've probably had that nagging sensation of not knowing what branch you are on. Worry no longer!

export PS1="\\w:\$(git branch 2>/dev/null | grep '^*' | colrm 1 2)\$ "

# This will change your prompt to display not only your working directory but also your current git branch, if you have one. Pretty nifty!

# ~/code/web:beta_directory$ git checkout master
# Switched to branch "master"
# ~/code/web:master$ git checkout beta_directory
# Switched to branch "beta_directory"
# ~/code/web:beta_directory$ 

Probably the most rich solution I found so far: https://github.com/diogocavilha/fancy-git

I would like to see my python virtual environment (venv) as well, as it is usually the case when using MINGW64-git-bash.

So previously, the venv "projectname-venv" was shown in parentheses on the left, but after applying some fancy PS1-command to change the style, coloring and make the current git-branch appear on the right, the venv is missing afterwards.

(projectname-venv) andylu@hd1pcms0347:/mnt/c/Users/username/Projects/projectname$
PS1='\[\033[0;32m\]\u\[\033[0;36m\] @ \[\033[0;36m\]\h \w\[\033[0;32m\]$(__git_ps1)\n\[\033[0;32m\]└─\[\033[0;32m\] \$\[\033[0;32m\] ▶\[\033[0m\] '

andylu @ hd1pcms0347 /mnt/c/Users/username/Projects/projectname (feature/story-43052-dev)
└─ $ ▶ ls

I'd like to have a PS1-command including the venv.

@cheesits456

How do I let it display correctly?

Windows Terminal - SSH

@Lulalaby You need to set the terminal font to a nerd font (patched fonts that replace unused characters with different icons). You can get nerd fonts from https://www.nerdfonts.com/font-downloads. The one I'm using is FantasqueSansMono

thanks!

I just recently started using this and works perfectly.

git_branch() {

if [ git branch 2>/dev/null | grep '^*' | colrm 1 2 | wc -l -eq 1 ];
then
echo -n "("
echo -n git branch 2>/dev/null | grep '^*' | colrm 1 2
echo -n ")"
fi

}

PS1='[\033[0;32m][\033[0m\033[0;32m]\u[\033[0;36m] @ [\033[0;36m]\h \w[\033[0;32m] $(git_branch)\n[\033[0;32m]└─[\033[0m\033[0;32m] $[\033[0m\033[0;32m] ▶[\033[0m] '

This will not have () if there is no branch found.
And it will write with a () if there is a branch.

Optimization wrt slow prompt rendering :
How to make the prompt display INSTANTLY, whatever the complexity of the git state computation ?
-> by NOT performing any git state computation, UNLESS the working directory has changed, OR git command was run.

PROMPT_COMMAND='history1=`history 1`;
if [[ $PREVIOUS_PWD != $PWD || ( $history1 == *" git "* && $history1 != $PREVIOUS_CMD ) ]]; 
then GITBRANCH=`__git_ps1`;  # or whatever git state computation commands
fi; 
PREVIOUS_PWD=$PWD; PREVIOUS_CMD=$history1;'

PS1='\[\033[32m\]\u@\h \[\033[33m\]\w\[\033[36m\]$GITBRANCH\[\033[0m\]\n$ '
# or whatever prompt rendering, as long as it embeds $GITBRANCH which has been conditionally computed above

Could any of you share the fonts you are using in your terminals? Especially the ones with the file and folder icons?

-> by NOT performing any git state computation, when the working directory has NOT changed.

But then the prompt doesn't change when you switch branches.

-> by NOT performing any git state computation, when the working directory has NOT changed.

But then the prompt doesn't change when you switch branches.

You're correct.
So let's improve & rephrase the optimization :
"-> by NOT performing any git state computation, UNLESS the working directory has changed, OR git command was run."

I updated my original proposed solution accordingly.

I created my own version for displaying the git branch in prompt starting from @vankasteelj reply (wrote on Mar 7, 2016).

It is a simple solution that includes branch status color. Take a look:

parse_git_bg() {
  if [[ $(git status -s 2> /dev/null) ]]; then
    echo -e "\033[0;31m"
  else
    echo -e "\033[0;32m"
  fi
}

PS1='\[\033[0;32m\]\[\033[0m\033[0;32m\]\u\[\033[0;34m\]@\[\033[0;34m\]\h \w\[$(parse_git_bg)\]$(__git_ps1)\n\[\033[0;32m\]\$\[\033[0m\] 

Based. Thanks.

1 as True or correct command, and if it is 0, then it is false or wrong.

parse_git_branch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}

export PS1="╭─╼[\[\e[1;36m\]\w\[\e[0m\]]-(\`if [ \$? = 0 ]; then echo \[\e[32m\]1\[\e[0m\]; else echo \[\e[31m\]0\[\e[0m\]; fi\`)-[\[\e[1;32m\]\h\[\e[0m\]]\n╰─ \u\$(if git rev-parse --git-dir > /dev/null 2>&1; then echo '@git:('; fi)\[\e[1;34m\]\$(parse_git_branch)\[\e[0m\]\$(if git rev-parse --git-dir > /dev/null 2>&1; then echo ')'; fi) >> "


PROMPT_DIRTRIM=2

Good job! Thank you a lot!

Thank you