#!/bin/bash

# Git pre-push hook to check if CHANGELOG.md is included in the push and if the branch is develop

# Get the current branch name

current_branch=$(git rev-parse --abbrev-ref HEAD)

# Check if the branch is develop

if [ "$current_branch" == "main" ]; then
	echo "You are on the main branch. Skipping CHANGELOG.md check."
	exit 0
fi

# remote="$1"
# url="$2"

# Get the list of commits to be pushed
commits=$(git rev-list '@{u}..HEAD')

has_rust_files=$(false)

# TODO: We can iterate to get file list only once
# Get the list of files that are going to be pushed
for commit in $commits; do
	if git diff-tree --no-commit-id --name-only -r "${commit}" | grep -q "\\.rs$"; then
		has_rust_files=$(true)
	fi
done

if [[ ! $has_rust_files ]]; then
	echo "No .rs files in the push, no need to check CHANGELOG"
	exit 0
fi

# Check if CHANGELOG.md is among the files in the commits
for commit in $commits; do
	if git diff-tree --no-commit-id --name-only -r "${commit}" | grep -q "CHANGELOG.md"; then
		echo "CHANGELOG.md is included in the push."
		exit 0
	fi
done

echo "ERROR: CHANGELOG.md is not included in the push."
exit 1

Edit (2025-02-08): Added a check for when only code files are changed.

git config --global core.excludesfile ~/.gitignore_global

Note that the path given to git config should be an absolute path.