diff options
Diffstat (limited to 'src/test/shell/bazel/bazel_determinism_test.sh')
-rw-r--r-- | src/test/shell/bazel/bazel_determinism_test.sh | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/test/shell/bazel/bazel_determinism_test.sh b/src/test/shell/bazel/bazel_determinism_test.sh new file mode 100644 index 0000000000..7de2205112 --- /dev/null +++ b/src/test/shell/bazel/bazel_determinism_test.sh @@ -0,0 +1,71 @@ +#!/bin/bash +# +# Copyright 2016 The Bazel Authors. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# +# Test that bootstrapping bazel is a fixed point +# + +set -u +DISTFILE=$(rlocation io_bazel/${1#./}) +shift 1 + +if [ "${JAVA_VERSION:-}" == "1.7" ] ; then + echo "Warning: bootstrapping not tested for java 1.7" + exit 0 +fi + +# Load the test setup defined in the parent directory +source $(rlocation io_bazel/src/test/shell/integration_test_setup.sh) \ + || { echo "integration_test_setup.sh not found!" >&2; exit 1; } + +function hash_outputs() { + [ -n "${BAZEL_TEST_XTRACE:-}" ] && set +x # Avoid garbage in the output + # runfiles/MANIFEST & runfiles_manifest contain absolute path, ignore. + # ar on OS-X is non-deterministic, ignore .a files. + for i in $(find bazel-bin/ -type f -a \! -name MANIFEST -a \! -name '*.runfiles_manifest' -a \! -name '*.a'); do + sha256sum $i + done + for i in $(find bazel-genfiles/ -type f); do + sha256sum $i + done + [ -n "${BAZEL_TEST_XTRACE:-}" ] && set -x +} + +function get_outputs_sum() { + hash_outputs | sort -k 2 +} + +function test_determinism() { + local olddir=$(pwd) + WRKDIR=$(mktemp -d ${TEST_TMPDIR}/bazelbootstrap.XXXXXXXX) + mkdir -p "${WRKDIR}" || fail "Could not create workdir" + trap "rm -rf \"$WRKDIR\"" EXIT + cd "${WRKDIR}" || fail "Could not change to work directory" + unzip -q ${DISTFILE} + # Compile bazel a first time + bazel build --nostamp src:bazel + cp bazel-bin/src/bazel bazel1 + get_outputs_sum >"${TEST_TMPDIR}/sum1" + ./bazel1 clean --expunge + ./bazel1 build --nostamp src:bazel + get_outputs_sum >"${TEST_TMPDIR}/sum2" + if ! (diff -q "${TEST_TMPDIR}/sum1" "${TEST_TMPDIR}/sum2"); then + diff -U0 "${TEST_TMPDIR}/sum1" "${TEST_TMPDIR}/sum2" >$TEST_log + fail "Non deterministic outputs found!" + fi +} + +run_suite "determinism test" |