format

#!/usr/bin/env bash
# scripts/format — auto-format shell scripts (and pre-commit if configured).
#
# Usage: scripts/format
#   or:  make format
#
# Priority:
#   1. pre-commit run --all-files  (if pre-commit and config are present)
#   2. shfmt -w (write) on scripts/* and bin/*
# If none of the above tools are present, the script exits 0 with a notice.

set -euo pipefail

REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$REPO_ROOT" || exit 1

# ── helpers ──────────────────────────────────────────────────────────────────
info() { printf '\033[1;34m==> %s\033[0m\n' "$*"; }
ok()   { printf '\033[1;32m ✓  %s\033[0m\n' "$*"; }
warn() { printf '\033[1;33mwarn: %s\033[0m\n' "$*"; }

# ── collect shell scripts ─────────────────────────────────────────────────────
shell_scripts=()
for dir in scripts bin; do
    if [ -d "$dir" ]; then
        while IFS= read -r -d '' f; do
            shell_scripts+=("$f")
        done < <(find "$dir" -type f ! -name "*.*" -print0 2>/dev/null)
    fi
done

# ── 1. pre-commit ─────────────────────────────────────────────────────────────
if command -v pre-commit >/dev/null 2>&1 && [ -f ".pre-commit-config.yaml" ]; then
    info "Running pre-commit run --all-files…"
    if pre-commit run --all-files; then
        ok "pre-commit passed"
    else
        exit 1
    fi
    exit 0
fi

# ── 2. shfmt (write mode) ─────────────────────────────────────────────────────
if command -v shfmt >/dev/null 2>&1; then
    if [ "${#shell_scripts[@]}" -gt 0 ]; then
        info "Running shfmt -w on shell scripts…"
        shfmt -w "${shell_scripts[@]}"
        ok "shfmt: formatting applied"
    else
        warn "No shell scripts found to format with shfmt."
    fi
else
    warn "shfmt not found — skipping. See https://github.com/mvdan/sh for install instructions."
fi