precommit

#!/bin/bash

is_package_json_at_git_index() {
    package_json_changed=$(git diff --cached --name-only | grep -x package.json 2> /dev/null)
    if [ "$package_json_changed" ];
    then
        return 0;
    else
        return 1;
    fi
}

is_version_updated() {
    version_changed=$(git diff --cached --unified=0 package.json 2> /dev/null | grep '^\+\s\{1,\}"version":')
    if [ "$version_changed" ];
    then
        return 0;
    else
        return 1;
    fi
}

is_changelog_updated() {
    changelog_updated=$(git diff --cached CHANGELOG.md 2> /dev/null)
    if [ "$changelog_updated" ];
    then
        return 0;
    else
        return 1;
    fi
}

if is_package_json_at_git_index && is_version_updated && ! is_changelog_updated; then
  echo "> YOU SHOULD UPDATE CHANGELOG!"
  exit 1;
fi