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#!/bin/bash
#
# Copyright 2017 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 rules with outputs definitions.
#
# --- begin runfiles.bash initialization ---
# Copy-pasted from Bazel's Bash runfiles library (tools/bash/runfiles/runfiles.bash).
set -euo pipefail
if [[ ! -d "${RUNFILES_DIR:-/dev/null}" && ! -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
if [[ -f "$0.runfiles_manifest" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles_manifest"
elif [[ -f "$0.runfiles/MANIFEST" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles/MANIFEST"
elif [[ -f "$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
export RUNFILES_DIR="$0.runfiles"
fi
fi
if [[ -f "${RUNFILES_DIR:-/dev/null}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
source "${RUNFILES_DIR}/bazel_tools/tools/bash/runfiles/runfiles.bash"
elif [[ -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
source "$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash " \
"$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)"
else
echo >&2 "ERROR: cannot find @bazel_tools//tools/bash/runfiles:runfiles.bash"
exit 1
fi
# --- end runfiles.bash initialization ---
source "$(rlocation "io_bazel/src/test/shell/integration_test_setup.sh")" \
|| { echo "integration_test_setup.sh not found!" >&2; exit 1; }
# `uname` returns the current platform, e.g "MSYS_NT-10.0" or "Linux".
# `tr` converts all upper case letters to lower case.
# `case` matches the result if the `uname | tr` expression to string prefixes
# that use the same wildcards as names do in Bash, i.e. "msys*" matches strings
# starting with "msys", and "*" matches everything (it's the default case).
case "$(uname -s | tr [:upper:] [:lower:])" in
msys*)
# As of 2018-08-14, Bazel on Windows only supports MSYS Bash.
declare -r is_windows=true
;;
*)
declare -r is_windows=false
;;
esac
if "$is_windows"; then
# Disable MSYS path conversion that converts path-looking command arguments to
# Windows paths (even if they arguments are not in fact paths).
export MSYS_NO_PATHCONV=1
export MSYS2_ARG_CONV_EXCL="*"
fi
#### TESTS #############################################################
function test_plain_outputs() {
local -r pkg=$FUNCNAME
mkdir -p $pkg || fail "mkdir -p $pkg failed"
cat >$pkg/rule.bzl <<EOF
def _impl(ctx):
ctx.actions.write(
output=ctx.outputs.out,
content="Hello World!"
)
return []
demo_rule = rule(
_impl,
attrs = {
'foo': attr.string(),
},
outputs = {
'out': '%{foo}.txt'
})
EOF
cat >$pkg/BUILD <<EOF
load(':rule.bzl', 'demo_rule')
demo_rule(
name = 'demo',
foo = 'demo_output_name')
EOF
bazel build //$pkg:demo &> $TEST_log || fail "Build failed"
expect_log "demo_output_name.txt"
}
function test_function_outputs() {
local -r pkg=$FUNCNAME
mkdir -p $pkg || fail "mkdir -p $pkg failed"
cat >$pkg/rule.bzl <<EOF
def _outputs(foo):
return {
'out': foo + '.txt',
}
def _impl(ctx):
ctx.actions.write(
output=ctx.outputs.out,
content="Hello World!"
)
return []
demo_rule = rule(
_impl,
attrs = {
'foo': attr.string(),
},
outputs = _outputs)
EOF
cat >$pkg/BUILD <<EOF
load(':rule.bzl', 'demo_rule')
demo_rule(
name = 'demo',
foo = 'demo_output_name')
EOF
bazel build //$pkg:demo &> $TEST_log || fail "Build failed"
expect_log "demo_output_name.txt"
}
function test_output_select_error() {
local -r pkg=$FUNCNAME
mkdir -p $pkg || fail "mkdir -p $pkg failed"
cat >$pkg/rule.bzl <<EOF
def _impl(ctx):
ctx.actions.write(
output=ctx.outputs.out,
content="Hello World!"
)
return []
demo_rule = rule(
_impl,
attrs = {
'foo': attr.string(),
},
outputs = select({
'//conditions:default': {
'out': '%{foo}.txt'
}
}))
EOF
cat >$pkg/BUILD <<EOF
load(':rule.bzl', 'demo_rule')
demo_rule(
name = 'demo',
foo = 'a_str')
EOF
if bazel build //$pkg:demo &> $TEST_log; then
fail "Build expected to fail"
fi
expect_log "got.* 'select', want 'dict, NoneType, or function'" # (outputs)
}
function test_configurable_output_error() {
local -r pkg=$FUNCNAME
mkdir -p $pkg || fail "mkdir -p $pkg failed"
cat >$pkg/rule.bzl <<EOF
def _impl(ctx):
ctx.actions.write(
output=ctx.outputs.out,
content="Hello World!"
)
return []
demo_rule = rule(
_impl,
attrs = {
'foo': attr.string(),
},
outputs = {
'out': '%{foo}.txt'
})
EOF
cat >$pkg/BUILD <<EOF
load(':rule.bzl', 'demo_rule')
demo_rule(
name = 'demo',
foo = select({
'//conditions:default': 'selectable_str',
}))
EOF
if bazel build //$pkg:demo &> $TEST_log; then
fail "Build expected to fail"
fi
expect_log "Attribute foo is configurable and cannot be used in outputs"
}
function test_build_generated_file_with_selects_succeeds() {
local -r pkg=$FUNCNAME
mkdir -p $pkg || fail "mkdir -p $pkg failed"
cat >$pkg/rule.bzl <<EOF
def _impl(ctx):
ctx.actions.write(
output=ctx.outputs.out,
content="Hello World!"
)
return []
demo_rule = rule(
_impl,
attrs = {
'srcs': attr.label_list(allow_files=True),
'foo': attr.string(),
},
outputs = {
'out': '%{foo}.txt'
})
EOF
cat >$pkg/a.txt <<EOF
EOF
cat >$pkg/b.txt <<EOF
EOF
cat >$pkg/BUILD <<EOF
load(':rule.bzl', 'demo_rule')
config_setting(
name = "k8_cpu",
values = {'cpu': 'k8'},
)
demo_rule(
name = 'demo',
srcs = select({
':k8_cpu': ['a.txt'],
}) + select({
':k8_cpu': ['b.txt'],
}),
foo = 'foobar',
)
EOF
bazel cquery --cpu=k8 --experimental_use_validation_aspect //$pkg:foobar.txt &> $TEST_log \
|| fail "Cquery 'foobar.txt' expected to succeed"
}
run_suite "starlark outputs tests"