#!/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 "$ROOT"
    # script/bootstrap installs goimports into Go's bin directory, which
    # need not be on PATH.
    gobin="$(go env GOBIN)"
    [ -n "$gobin" ] || gobin="$(go env GOPATH)/bin"
    PATH="$gobin:$PATH"
    files="$(gofmt -s -l .; goimports -l .)"
    if [ -n "$files" ]; then
        echo "files that make fmt would change:" >&2
        echo "$files" | sort -u >&2
        exit 1
    fi
}

main "$@"