pre-commit

#!/usr/bin/env bash
set -e
LC_ALL=C

git_username_lower="$(git config github.user | tr '[:upper:]' '[:lower:]')"
if [[ -z "${git_username_lower}" ]]; then
    echo -e "Error: GitHub username is not set.

Please set your GitHub username using one of the following commands:

1. To set it globally (for all repos):
        \033[1mgit config --global github.user \"<USERNAME>\"\033[0m

2. To set it locally (for this repo only):
        \033[1mgit config github.user \"<USERNAME>\"\033[0m

Replace <USERNAME> with your GitHub username (e.g., 'gh-username').

Once set, try committing again."
    exit 1
fi

# e.g. "USERNAME/ARO-1234", "USERNAME/hotfix-v20240321.00", "USERNAME/gh-issue-123" and appended descriptions: "USERNAME/ARO-1234/description-here"
valid_branch_regex="^${git_username_lower}\/(ARO-[0-9]{4,}|hotfix-v[0-9]{8}(\.[0-9]+)*|gh-issue-[0-9]{1,})(\/[a-zA-Z0-9][a-zA-Z0-9.-]*)?$"
local_branch="$(git rev-parse --abbrev-ref HEAD)"

if [[ ! $local_branch =~ $valid_branch_regex ]]; then
    current_branch=$(git branch --show-current)
    echo -e "Your commit has been rejected because the branch name is invalid.

Branch names in this project must adhere to the following contract:
    \033[3m$valid_branch_regex\033[0m

To rename your current branch, run:
    \033[1mgit branch --move $current_branch <NEW-BRANCH-NAME>\033[0m

Replace <NEW-BRANCH-NAME> with a valid branch name and try again."
    exit 1
fi