#!/usr/bin/env bash

# gstack-slug — output project slug and sanitized branch name

# Usage: eval "$(gstack-slug)" → sets SLUG and BRANCH variables

# Or: gstack-slug → prints SLUG=... and BRANCH=... lines

#

# Security: output is sanitized to [a-zA-Z0-9._-] only, preventing

# shell injection when consumed via source or eval.

set -euo pipefail

RAW_SLUG=$(git remote get-url origin 2>/dev/null | sed 's|.*[:/]\([^/]*/[^/]*\)\.git$|\1|;s|.*[:/]\([^/]*/[^/]*\)$|\1|' | tr '/' '-') || true

RAW_BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null | tr '/' '-') || true

# Strip any characters that aren't alphanumeric, dot, hyphen, or underscore

SLUG=$(printf '%s' "${RAW_SLUG:-}" | tr -cd 'a-zA-Z0-9._-')

BRANCH=$(printf '%s' "${RAW_BRANCH:-}" | tr -cd 'a-zA-Z0-9._-')

# Fallback when git context is absent

SLUG="${SLUG:-$(basename "$PWD" | tr -cd 'a-zA-Z0-9._-')}"

BRANCH="${BRANCH:-unknown}"

echo "SLUG=$SLUG"

echo "BRANCH=$BRANCH"