blob: 87263a69776f2b6c58fe530cb815591cab385ec3 [file] [log] [blame]
#!/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 the providers and rules related to toolchains.
#
# --- begin runfiles.bash initialization ---
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; }
#### SETUP #############################################################
add_to_bazelrc "build --genrule_strategy=local"
add_to_bazelrc "test --test_strategy=standalone"
function set_up() {
create_new_workspace
mkdir -p package
# Create shared platform definitions
mkdir -p plat
cat > plat/BUILD <<EOF
platform(
name = 'platform1',
constraint_values = [])
platform(
name = 'platform2',
constraint_values = [])
EOF
# Create shared report rule for printing flag and platform info.
mkdir -p report
cat > report/flag.bzl <<EOF
BuildSettingInfo = provider(fields = ["value"])
def _string_flag_impl(ctx):
return [BuildSettingInfo(value = ctx.build_setting_value)]
string_flag = rule(
implementation = _string_flag_impl,
build_setting = config.string(flag = True)
)
EOF
cat > report/BUILD <<EOF
load(":flag.bzl", "string_flag")
string_flag(
name = "mapping_flag",
build_setting_default = "from_default",
)
EOF
cat > report/report.bzl <<EOF
load(":flag.bzl", "BuildSettingInfo")
def _report_impl(ctx):
mapping_flag = ctx.attr._mapping_flag[BuildSettingInfo].value
print('mapping_flag: %s' % mapping_flag)
print('platform: %s' % ctx.fragments.platform.platform)
report_flags = rule(
implementation = _report_impl,
attrs = {
"_mapping_flag": attr.label(default = "//report:mapping_flag"),
},
fragments = ["platform"]
)
EOF
}
#### TESTS #############################################################
function test_top_level_flags_to_platform_mapping() {
cat > platform_mappings <<EOF
flags:
--//report:mapping_flag=foo
//plat:platform1
EOF
cat > package/BUILD <<EOF
load("//report:report.bzl", "report_flags")
report_flags(name = "report")
EOF
bazel build \
--platform_mappings=platform_mappings \
--//report:mapping_flag=foo \
//package:report &> $TEST_log \
|| fail "Build failed unexpectedly"
expect_log "platform: .*//plat:platform1"
}
function test_top_level_platform_to_flags_mapping() {
cat > platform_mappings <<EOF
platforms:
//plat:platform1
--//report:mapping_flag=from_mapping
EOF
cat > package/BUILD <<EOF
load("//report:report.bzl", "report_flags")
report_flags(name = "report")
EOF
bazel build \
--platform_mappings=platform_mappings \
--platforms=//plat:platform1 \
package:report &> $TEST_log \
|| fail "Build failed unexpectedly"
expect_log "mapping_flag: from_mapping"
}
function test_custom_platform_mapping_location() {
mkdir custom
cat > custom/platform_mappings <<EOF
flags:
--//report:mapping_flag=foo
//plat:platform1
EOF
cat > package/BUILD <<EOF
load("//report:report.bzl", "report_flags")
report_flags(name = "report")
EOF
bazel build \
--//report:mapping_flag=foo \
--platform_mappings=custom/platform_mappings \
package:report &> $TEST_log || fail "Build failed unexpectedly"
expect_log "platform: .*//plat:platform1"
}
function test_custom_platform_mapping_location_after_exec_transition() {
mkdir -p custom
cat > custom/platform_mappings <<EOF
platforms:
//plat:platform1
--//report:mapping_flag=from_mapping
EOF
cat > package/BUILD <<EOF
load("//report:report.bzl", "report_flags")
genrule(
name = "genrule",
outs = ["genrule.out"],
cmd = "echo hello > \$@",
tools = [
":report",
],
)
report_flags(name = "report")
EOF
bazel build \
--platform_mappings=custom/platform_mappings \
--extra_execution_platforms=//plat:platform1 \
package:genrule &> $TEST_log || fail "Build failed unexpectedly"
expect_log "platform: .*//plat:platform1"
expect_log "mapping_flag: from_mapping"
}
function test_transition_platform_mapping() {
cat > platform_mappings <<EOF
flags:
--//report:mapping_flag=foo
//plat:platform1
--//report:mapping_flag=bar
//plat:platform2
EOF
cat > package/rule.bzl <<EOF
def _my_transition_impl(settings, attrs):
return {
"//report:mapping_flag": "bar",
# Platforms *must* be wiped for transitions to correctly participate in
# platform mapping.
"//command_line_option:platforms": [],
}
my_transition = transition(
implementation = _my_transition_impl,
inputs = [],
outputs = [
"//report:mapping_flag",
"//command_line_option:platforms",
],
)
def _my_rule_impl(ctx):
return []
my_rule = rule(
implementation = _my_rule_impl,
attrs = {
"deps": attr.label_list(cfg = my_transition),
}
)
EOF
cat > package/BUILD <<EOF
load("//report:report.bzl", "report_flags")
load("//package:rule.bzl", "my_rule")
my_rule(
name = "custom",
deps = [ ":report" ]
)
report_flags(name = "report")
EOF
bazel build \
--platform_mappings=platform_mappings \
--//report:mapping_flag=foo \
package:custom &> $TEST_log \
|| fail "Build failed unexpectedly"
expect_not_log "platform: .*//plat:platform1"
expect_log "platform: .*//plat:platform2"
}
function test_mapping_overrides_command_line() {
cat > platform_mappings <<EOF
platforms:
//plat:platform1
--//report:mapping_flag=from_mapping
EOF
cat > package/BUILD <<EOF
load("//report:report.bzl", "report_flags")
report_flags(name = "report")
EOF
bazel build \
--platform_mappings=platform_mappings \
--platforms=//plat:platform1 \
--//report:mapping_flag=from_cli \
package:report &> $TEST_log \
|| fail "Build failed unexpectedly"
expect_log "mapping_flag: from_mapping"
}
function test_repeatable_flag_doesnt_accumulate() {
# Use a different flag for testing and reporting.
mkdir -p repeatable
cat > repeatable/flag.bzl <<EOF
FlagValue = provider(fields = ["value"])
def _impl(ctx):
values = ctx.build_setting_value
return [
FlagValue(value = values),
]
repeatable_flag = rule(
implementation = _impl,
build_setting = config.string_list(flag = True, repeatable = True),
)
EOF
cat > repeatable/BUILD <<EOF
load(":flag.bzl", "repeatable_flag")
package(default_visibility = ["//visibility:public"])
repeatable_flag(
name = "repeatable_flag",
build_setting_default = ['default'],
)
EOF
cat > report/report.bzl <<EOF
load("//repeatable:flag.bzl", "FlagValue")
def _report_impl(ctx):
flag_values = ctx.attr._flag[FlagValue].value
print('repeatable_flag: %s' % flag_values)
print('platform: %s' % ctx.fragments.platform.platform)
report_flags = rule(
implementation = _report_impl,
attrs = {
"_flag": attr.label(default = "//repeatable:repeatable_flag"),
},
fragments = ["platform"]
)
EOF
# Set up a platform mapping.
cat > platform_mappings <<EOF
platforms:
//plat:platform1
--//repeatable:repeatable_flag=from_mapping
EOF
cat > package/BUILD <<EOF
load("//report:report.bzl", "report_flags")
report_flags(name = "report")
EOF
bazel build \
--platform_mappings=platform_mappings \
--platforms=//plat:platform1 \
--//repeatable:repeatable_flag=from_cli \
package:report &> $TEST_log \
|| fail "Build failed unexpectedly"
expect_log 'repeatable_flag: \["from_mapping"\]'
}
run_suite "platform mapping test"