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#!/bin/bash
#
# Copyright 2018 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.
#
# starlark_configuration_test.sh: integration tests for starlark build configurations
# --- 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 "$(rlocation "io_bazel/src/test/shell/integration_test_setup.sh")" \
|| { echo "integration_test_setup.sh not found!" >&2; exit 1; }
case "$(uname -s | tr [:upper:] [:lower:])" in
msys*|mingw*|cygwin*)
declare -r is_windows=true
;;
*)
declare -r is_windows=false
;;
esac
if "$is_windows"; then
export MSYS_NO_PATHCONV=1
export MSYS2_ARG_CONV_EXCL="*"
fi
add_to_bazelrc "build --package_path=%workspace%"
#### HELPER FXNS #######################################################
function write_build_setting_bzl() {
cat > $pkg/build_setting.bzl <<EOF
BuildSettingInfo = provider(fields = ['name', 'value'])
def _build_setting_impl(ctx):
return [BuildSettingInfo(name = ctx.attr.name, value = ctx.build_setting_value)]
drink_attribute = rule(
implementation = _build_setting_impl,
build_setting = config.string(flag = True),
)
EOF
cat > $pkg/rules.bzl <<EOF
load("//$pkg:build_setting.bzl", "BuildSettingInfo")
def _impl(ctx):
_type_name = ctx.attr._type[BuildSettingInfo].name
_type_setting = ctx.attr._type[BuildSettingInfo].value
print(_type_name + "=" + str(_type_setting))
_temp_name = ctx.attr._temp[BuildSettingInfo].name
_temp_setting = ctx.attr._temp[BuildSettingInfo].value
print(_temp_name + "=" + str(_temp_setting))
print("strict_java_deps=" + ctx.fragments.java.strict_java_deps)
drink = rule(
implementation = _impl,
attrs = {
"_type":attr.label(default = Label("//$pkg:type")),
"_temp":attr.label(default = Label("//$pkg:temp")),
},
fragments = ["java"],
)
EOF
cat > $pkg/BUILD <<EOF
load("//$pkg:build_setting.bzl", "drink_attribute")
load("//$pkg:rules.bzl", "drink")
drink(name = 'my_drink')
drink_attribute(name = 'type', build_setting_default = 'unknown')
drink_attribute(name = 'temp', build_setting_default = 'unknown')
EOF
}
#### TESTS #############################################################
function test_default_flag() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
write_build_setting_bzl
bazel build //$pkg:my_drink --experimental_build_setting_api > output \
2>"$TEST_log" || fail "Expected success"
expect_log "type=unknown"
}
function test_set_flag() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
write_build_setting_bzl
bazel build //$pkg:my_drink --//$pkg:type="coffee" \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
expect_log "type=coffee"
}
function test_starlark_and_native_flag() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
write_build_setting_bzl
bazel build //$pkg:my_drink --//$pkg:type=coffee --strict_java_deps=off \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
expect_log "type=coffee"
expect_log "strict_java_deps=off"
}
function test_dont_parse_flags_after_dash_dash() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
write_build_setting_bzl
bazel build //$pkg:my_drink --//$pkg:type=coffee \
--experimental_build_setting_api -- --//$pkg:temp=iced \
> output 2>"$TEST_log" \
&& fail "Expected failure"
expect_log "invalid package name '-//test_dont_parse_flags_after_dash_dash'"
}
function test_multiple_starlark_flags() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
write_build_setting_bzl
bazel build //$pkg:my_drink --//$pkg:type="coffee" --//$pkg:temp="iced" \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
expect_log "type=coffee"
expect_log "temp=iced"
# Ensure that order doesn't matter.
bazel build //$pkg:my_drink --//$pkg:temp="iced" --//$pkg:type="coffee" \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
expect_log "type=coffee"
expect_log "temp=iced"
}
function test_flag_default_change() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
write_build_setting_bzl
bazel build //$pkg:my_drink --experimental_build_setting_api > output \
2>"$TEST_log" || fail "Expected success"
expect_log "type=unknown"
cat > $pkg/BUILD <<EOF
load("//$pkg:build_setting.bzl", "drink_attribute")
load("//$pkg:rules.bzl", "drink")
drink(name = 'my_drink')
drink_attribute(name = 'type', build_setting_default = 'cowabunga')
drink_attribute(name = 'temp', build_setting_default = 'cowabunga')
EOF
bazel build //$pkg:my_drink --experimental_build_setting_api > output \
2>"$TEST_log" || fail "Expected success"
expect_log "type=cowabunga"
}
# Regression tests for b/134580627
# Make sure package incrementality works during options parsing
function test_incremental_delete_build_setting() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
cat > $pkg/rules.bzl <<EOF
def _impl(ctx):
return []
my_flag = rule(
implementation = _impl,
build_setting = config.string(flag = True)
)
simple_rule = rule(implementation = _impl)
EOF
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "my_flag", "simple_rule")
my_flag(name = "my_flag", build_setting_default = "default")
simple_rule(name = "simple_rule")
EOF
bazel build //$pkg:simple_rule --//$pkg:my_flag=cowabunga \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "simple_rule")
simple_rule(name = "simple_rule")
EOF
bazel build //$pkg:simple_rule --//$pkg:my_flag=cowabunga \
--experimental_build_setting_api > output 2>"$TEST_log" \
&& fail "Expected failure" || true
expect_log "no such target '//$pkg:my_flag'"
}
#############################
function test_incremental_delete_build_setting_in_different_package() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
cat > $pkg/rules.bzl <<EOF
def _impl(ctx):
return []
my_flag = rule(
implementation = _impl,
build_setting = config.string(flag = True)
)
simple_rule = rule(implementation = _impl)
EOF
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "my_flag")
my_flag(name = "my_flag", build_setting_default = "default")
EOF
mkdir -p pkg2
cat > pkg2/BUILD <<EOF
load("//$pkg:rules.bzl", "simple_rule")
simple_rule(name = "simple_rule")
EOF
bazel build //pkg2:simple_rule --//$pkg:my_flag=cowabunga \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
cat > $pkg/BUILD <<EOF
EOF
bazel build //pkg2:simple_rule --//$pkg:my_flag=cowabunga \
--experimental_build_setting_api > output 2>"$TEST_log" \
&& fail "Expected failure" || true
expect_log "no such target '//$pkg:my_flag'"
}
#############################
function test_incremental_add_build_setting() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
cat > $pkg/rules.bzl <<EOF
def _impl(ctx):
return []
my_flag = rule(
implementation = _impl,
build_setting = config.string(flag = True)
)
simple_rule = rule(implementation = _impl)
EOF
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "simple_rule")
simple_rule(name = "simple_rule")
EOF
bazel build //$pkg:simple_rule --experimental_build_setting_api \
> output 2>"$TEST_log" || fail "Expected success"
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "my_flag", "simple_rule")
my_flag(name = "my_flag", build_setting_default = "default")
simple_rule(name = "simple_rule")
EOF
bazel build //$pkg:simple_rule --//$pkg:my_flag=cowabunga \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
}
function test_incremental_change_build_setting() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
cat > $pkg/rules.bzl <<EOF
MyProvider = provider(fields = ["value"])
def _flag_impl(ctx):
return MyProvider(value = ctx.build_setting_value)
my_flag = rule(
implementation = _flag_impl,
build_setting = config.string(flag = True)
)
def _rule_impl(ctx):
print("flag = " + ctx.attr.flag[MyProvider].value)
simple_rule = rule(
implementation = _rule_impl,
attrs = {"flag" : attr.label()}
)
EOF
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "my_flag", "simple_rule")
my_flag(name = "my_flag", build_setting_default = "default")
simple_rule(name = "simple_rule", flag = ":my_flag")
EOF
bazel build //$pkg:simple_rule --//$pkg:my_flag=yabadabadoo \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
expect_log "flag = yabadabadoo"
# update the flag to return a different value
cat > $pkg/rules.bzl <<EOF
MyProvider = provider(fields = ["value"])
def _flag_impl(ctx):
return MyProvider(value = "scoobydoobydoo")
my_flag = rule(
implementation = _flag_impl,
build_setting = config.string(flag = True)
)
def _rule_impl(ctx):
print("flag = " + ctx.attr.flag[MyProvider].value)
simple_rule = rule(
implementation = _rule_impl,
attrs = {"flag" : attr.label()}
)
EOF
bazel build //$pkg:simple_rule --//$pkg:my_flag=yabadabadoo \
--experimental_build_setting_api > output 2>"$TEST_log" \
|| fail "Expected success"
expect_log "flag = scoobydoobydoo"
}
# Test that label-typed build setting has access to providers of the
# target it points to.
function test_label_flag() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "my_rule", "simple_rule")
my_rule(name = "my_rule")
simple_rule(name = "default", value = "default_val")
simple_rule(name = "command_line", value = "command_line_val")
label_flag(
name = "my_label_build_setting",
build_setting_default = ":default"
)
EOF
cat > $pkg/rules.bzl <<EOF
def _impl(ctx):
_setting = ctx.attr._label_flag[SimpleRuleInfo].value
print("value=" + _setting)
my_rule = rule(
implementation = _impl,
attrs = {
"_label_flag": attr.label(default = Label("//$pkg:my_label_build_setting")),
},
)
SimpleRuleInfo = provider(fields = ['value'])
def _simple_rule_impl(ctx):
return [SimpleRuleInfo(value = ctx.attr.value)]
simple_rule = rule(
implementation = _simple_rule_impl,
attrs = {
"value":attr.string(),
},
)
EOF
bazel build //$pkg:my_rule > output 2>"$TEST_log" || fail "Expected success"
expect_log "value=default_val"
bazel build //$pkg:my_rule --//$pkg:my_label_build_setting=//$pkg:command_line > output \
2>"$TEST_log" || fail "Expected success"
expect_log "value=command_line_val"
}
function test_output_same_config_as_generating_target() {
local -r pkg=$FUNCNAME
mkdir -p $pkg
rm -rf tools/whitelists/function_transition_whitelist
mkdir -p tools/whitelists/function_transition_whitelist
cat > tools/whitelists/function_transition_whitelist/BUILD <<EOF
package_group(
name = "function_transition_whitelist",
packages = [
"//...",
],
)
EOF
cat > $pkg/rules.bzl <<EOF
def _rule_class_transition_impl(settings, attr):
return {
"//command_line_option:test_arg": ["blah"]
}
_rule_class_transition = transition(
implementation = _rule_class_transition_impl,
inputs = [],
outputs = [
"//command_line_option:test_arg",
],
)
def _rule_class_transition_rule_impl(ctx):
ctx.actions.write(ctx.outputs.artifact, "hello\n")
return [DefaultInfo(files = depset([ctx.outputs.artifact]))]
rule_class_transition_rule = rule(
_rule_class_transition_rule_impl,
cfg = _rule_class_transition,
attrs = {
"_whitelist_function_transition": attr.label(default = "//tools/whitelists/function_transition_whitelist"),
},
outputs = {"artifact": "%{name}.output"},
)
EOF
cat > $pkg/BUILD <<EOF
load("//$pkg:rules.bzl", "rule_class_transition_rule")
rule_class_transition_rule(name = "with_rule_class_transition")
EOF
bazel build //$pkg:with_rule_class_transition.output > output 2>"$TEST_log" || fail "Expected success"
bazel cquery "deps(//$pkg:with_rule_class_transition.output, 1)" > output 2>"$TEST_log" || fail "Expected success"
assert_contains "//$pkg:with_rule_class_transition.output " output
assert_contains "//$pkg:with_rule_class_transition " output
# Find the lines of output for the output target and the generating target
OUTPUT=$(grep "//$pkg:with_rule_class_transition.output " output)
TARGET=$(grep "//$pkg:with_rule_class_transition " output)
# Trim to just configuration
OUTPUT_CONFIG=${OUTPUT#* }
TARGET_CONFIG=${TARGET#* }
# Confirm same configuration
assert_equals $OUTPUT_CONFIG $TARGET_CONFIG
}
function test_starlark_flag_change_causes_action_rerun() {
local -r pkg="$FUNCNAME"
mkdir -p "$pkg"
cat > "$pkg/rules.bzl" <<EOF
BuildSettingInfo = provider(fields = ["value"])
def _impl(ctx):
return BuildSettingInfo(value = ctx.build_setting_value)
bool_flag = rule(
implementation = _impl,
build_setting = config.bool(flag = True),
)
EOF
cat > "$pkg/BUILD" <<EOF
load(":rules.bzl", "bool_flag")
bool_flag(
name = "myflag",
build_setting_default = True,
)
config_setting(
name = "myflag_selectable",
flag_values = {":myflag": "True"},
)
genrule(
name = "test_flag",
outs = ["out-flag.txt"],
cmd = "echo Value=" + select({
":myflag_selectable": "True",
"//conditions:default": "False",
}) + " | tee \$@",
)
EOF
bazel shutdown
# Setting --noexperimental_check_output_files is required to reproduce the
# issue: The bug this test covers was caused by starlark flag changes not
# invalidating the analysis cache, resulting in Bazel not re-running the
# genrule action during the third invocation (because it sees the action in
# skyframe as already executed from the first invocation). Bazel will by
# default also invalidate actions by checking all output files for
# modification *unless* an output service is registered (which can -
# correctly - indicate that the output hasn't changed since the last build,
# here between the second and third runs). As we don't have an output service
# available in this test we disable output file checking entirely instead.
bazel build "//$pkg:test_flag" "--//$pkg:myflag=true" \
--noexperimental_check_output_files \
2>>"$TEST_log" || fail "Expected build to succeed"
assert_equals "Value=True" "$(cat bazel-genfiles/$pkg/out-flag.txt)"
bazel build "//$pkg:test_flag" "--//$pkg:myflag=false" \
--noexperimental_check_output_files \
2>>"$TEST_log" || fail "Expected build to succeed"
assert_equals "Value=False" "$(cat bazel-genfiles/$pkg/out-flag.txt)"
bazel build "//$pkg:test_flag" "--//$pkg:myflag=true" \
--noexperimental_check_output_files \
2>>"$TEST_log" || fail "Expected build to succeed"
assert_equals "Value=True" "$(cat bazel-genfiles/$pkg/out-flag.txt)"
}
run_suite "${PRODUCT_NAME} starlark configurations tests"