#!/bin/sh
# script/fmt-check: check formatting (read-only). Same scope as
# script/fmt, but fails instead of writing.
set -eu

ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"

main() {
    cd "$ROOT"
    # Where script/bootstrap installs Go when the host has none.
    PATH="$PATH:$ROOT/.tool/go/bin"
    # The Go files git lists, which leaves out the sources of that
    # toolchain in the ignored .tool/go.
    files="$(git ls-files --cached --others --exclude-standard '*.go')"
    # shellcheck disable=SC2086 # one argument per file name
    unformatted="$(gofmt -l $files)"
    if [ -n "$unformatted" ]; then
        echo "Files not formatted:" >&2
        echo "$unformatted" >&2
        exit 1
    fi
}

main "$@"