git-fmt

git-fmt extends git to easily apply a variety of formatters to a set of changes.
Each formatter will be applied (in order) with the provided command to all
matching file extensions. Formatters are only applied to staged files to
provide a chance to review changes made.

The basic workflow anticipated might look something like:

git add .
git fmt
git diff # Examine changes made by formatters.
git add . && git commit -m 'I like the formatter changes!'

Installation

1. git-fmt is a standalone binary. To install, you can either build from source
   or download the (OSX only) binary from
   releases.

   Building from source

    git clone https://github.com/allancalix/git-fmt.git && cd git-fmt
    cargo build --release

2. Place the binary somewhere in $PATH.

Configuration

git-fmt is supported by the standard git config options. This means you can
define formatters for all your projects by modifying your global
.gitconfig or apply formatter commands only to a specific repository by
modifying the .git/config file found in every repository.

You could apply changes by using the cli. For example…

# Local repository changes.
git config fmt.rust.command "rustfmt {{STAGED_FILE}}"
git config fmt.rust.extensions "rs"
# Global changes that apply to all repositories.
git config --global fmt.rust.command "rustfmt {{STAGED_FILE}}"
git config --global fmt.rust.extensions "rs"

You could also apply changes directly to your global gitconfig file.

[fmt "rust"]
  command = "rustfmt {{STAGED_FILE}}"
  extensions = "rs"
[fmt "go"]
  command = "gofmt -w {{STAGED_FILE}}"
  extensions = "go, gox" # Separate additional extensions with commas.