However, in the git appendix A it shows a very ugly PS1 script. I like my original bash PS1 with the branch name and auto-complete, followed by the brach name in bright color. I paste my code here to remind myself and hopefully can help other people whom want to do the same.
- Download git-completion.bash from git source code. This file auto complete(using <tab> key) your branch name in your bash prompt:
$ wget https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash - Download git-prompt.sh . This script shows your current branch name:
$ wget https://raw.githubusercontent.com/git/git/master/contrib/completion/git-prompt.sh - $ source git-completion.bash
$ source git-prompt.sh
$ export PS1='\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\u@\h:\w\[\e[96m\]$(__git_ps1 "(%s)")\[\e[0m\]\$ '
Then it should turn PS1 like my prompt below:
gideon@gideon-i5:~/catkin_ws/src/turtlebot(indigo)$
To include the above scripts everytime you start your bash, change your .bashrc. I put the following lines to my .bashrc
source ~/.git-completion.bashAs a note, in Bash, the <Esc> character can be expressed with the following syntaxes:
source ~/.git-prompt.sh
export GIT_PS1_SHOWDIRTYSTATE=1
# PS1 with git (line wrap issue fixed!!)
export PS1='\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\u@\h:\w\[\e[96m\]$(__git_ps1 "(%s)")\[\e[0m\]\$ '
- \e
- \033
- \x1B
For example, \e[31m shows the following characters in Red color. The ”\e[0m” sequence removes all attributes which can be used end the bash coloring. However, these <Esc> and color characters breaks the bash windone line wrap counts. That is why you need \[ and \] to state to bash that those are non-printing characters.
Yes those are not for human.... and if you understand what I said.... get a life!
References
https://git-scm.com/book/en/v2/Appendix-A:-Git-in-Other-Environments-Git-in-Bash
http://misc.flogisoft.com/bash/tip_colors_and_formatting
http://www.tldp.org/HOWTO/Bash-Prompt-HOWTO/nonprintingchars.html
