Linting Pre-Push Hooks

rust-pre-push.sh

#!/bin/bash
set -euo pipefail
######################################################################
# Auto-formats code with RustFmt
# https://github.com/rust-lang-nursery/rustfmt
#
# After running, there will either be changes, or no changes.
#
# Possible outcomes:
#   * No changes: push is executed
#   * Changes: code has been formatted, user must accept the changes
######################################################################
cargo fmt -- --write-mode=overwrite

# return 0 if nothing's changed or staged
git diff --exit-code && git diff-index --quiet --cached HEAD