check-bazel-tags.sh

#!/bin/bash

# Copyright lowRISC contributors (OpenTitan project).
# Licensed under the Apache License, Version 2.0, see LICENSE for details.
# SPDX-License-Identifier: Apache-2.0

set -e

# The list of bazel tags is represented as a string and checked with a regex
# https://bazel.build/query/language#attr
# This function takes a tag(or regex component) and wraps it so attr can query
# for exact matches.
exact_regex () {
  echo "[\\[ ]${1}[,\\]]"
}

check_empty () {
    if [[ ${2} ]]; then
        echo "$1"
        echo "$2"|sed 's/^/    /';
        echo "$3"
        return 1
    fi
}

# This check ensures OpenTitan software can be built with a wildcard without
# waiting for Verilator using --build_tag_filters=-verilator
untagged=$(ci/bazelisk.sh query \
  "rdeps(
      //...,
      //hw:verilator
  )
  except
  attr(
      tags,
      '$(exact_regex "(verilator|manual)")',
      //...
  )" \
  --output=label_kind)
check_empty "Error:" "${untagged}" \
"Target(s) above depend(s) on //hw:verilator; please tag it with verilator or
(to prevent matching any wildcards) manual.
NOTE: test_suites that contain bazel tests with different tags should almost
universally use the manual tag."