Display the current Git branch in the Terminal prompt (PS1)

[jankeromnes]

Today, the Git branch/context is not shown in Gitpod's Terminal prompt.

But maybe it could be nice to have it included (this seems to be a common pattern, and Git even comes standard with the dedicated helper __git_ps1).

Current prompt

Proposed new prompt

This can be achieved like so:

PS1='\[\033[01;32m\]\u\[\033[00m\] \[\033[01;34m\]\w\[\033[00m\]$(__git_ps1 " (%s)") $ '

Criticism

I believe we've previously decided against having this, because the current branch name is already displayed in the bottom left of the IDE:

However, I personally find it hard to spot, and sometimes still accidentally push to the wrong place because I don't know I'm on the wrong branch.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[jankeromnes]

Not stale! Still extremely relevant, especially when working with submodules(!)

[Shulammite-Aso]

@jankeromnes can I take this up? I searched for good-first-issues and saw a few, but this one has stayed the longest, hence I'd like to start from it.

[jankeromnes]

Hi @Shulammite-Aso! Sure, many thanks for offering! I'll assign this issue to you for now (to let others know that you're intending to work on this).

Please let me know if you have any questions. 😊 FYI, you'll probably want to implement the fix in this file: https://github.com/gitpod-io/workspace-images/blob/master/base/Dockerfile