45 lines
1.7 KiB
Markdown
45 lines
1.7 KiB
Markdown
---
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created: 2024-01-25T16:49:34 (UTC -05:00)
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tags:
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- nixos
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source: https://jeffkreeftmeijer.com/nix-home-manager-git-prompt/
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author: Jeff Kreeftmeijer
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---
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# Git status in shell prompt with Nix Home Manager
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> ## Excerpt
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> By on 2023-03-19 (originally published on 2023-03-13)
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---
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By on 2023-03-19 (originally published on 2023-03-13)
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Git comes with a script named [`git-prompt.sh`](https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh) that exposes information about the current directory’s repository to use in your shell’s prompt. The script is in the `contrib` directory, but I used to [extract](https://github.com/jeffkreeftmeijer/git-prompt.sh) it to not have to download the git source to set my prompt.
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Using Nix, the prompt is available in the `~/.nix-profile` directory, meaning setting up the prompt doesn’t require remembering to download an extra file. Instead, it’s three lines in `programs.zsh.initExtra` to source the script and set the prompt<sup><a id="fnr.1" href="https://jeffkreeftmeijer.com/nix-home-manager-git-prompt/#fn.1" role="doc-backlink">1</a></sup>:
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```
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programs.zsh.initExtra =
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''
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source ~/.nix-profile/share/git/contrib/completion/git-prompt.sh
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setopt PROMPT_SUBST
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export PS1='%~ $(__git_ps1 "(%s) ")%# '
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'';
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```
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This produces prompts like `~/repository (main) %` inside a git repository, and `~/not/a/repository %` elsewhere.
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---
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1. This example is for zsh, omit the `setopt` and alter the `PS1` for bash:
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```
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programs.bash.initExtra =
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''
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source ~/.nix-profile/share/git/contrib/completion/git-prompt.sh
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export PS1='\w $(__git_ps1 "(%s) ")$ '
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'';
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```
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[↩︎](https://jeffkreeftmeijer.com/nix-home-manager-git-prompt/#fnr.1)
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