434 lines
13 KiB
Go
434 lines
13 KiB
Go
// Copyright 2020 Google Inc. 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.
|
|
|
|
package bazel
|
|
|
|
import (
|
|
"fmt"
|
|
"regexp"
|
|
"sort"
|
|
)
|
|
|
|
// BazelTargetModuleProperties contain properties and metadata used for
|
|
// Blueprint to BUILD file conversion.
|
|
type BazelTargetModuleProperties struct {
|
|
// The Bazel rule class for this target.
|
|
Rule_class string `blueprint:"mutated"`
|
|
|
|
// The target label for the bzl file containing the definition of the rule class.
|
|
Bzl_load_location string `blueprint:"mutated"`
|
|
}
|
|
|
|
const BazelTargetModuleNamePrefix = "__bp2build__"
|
|
|
|
var productVariableSubstitutionPattern = regexp.MustCompile("%(d|s)")
|
|
|
|
// Label is used to represent a Bazel compatible Label. Also stores the original bp text to support
|
|
// string replacement.
|
|
type Label struct {
|
|
Bp_text string
|
|
Label string
|
|
}
|
|
|
|
// LabelList is used to represent a list of Bazel labels.
|
|
type LabelList struct {
|
|
Includes []Label
|
|
Excludes []Label
|
|
}
|
|
|
|
// Append appends the fields of other labelList to the corresponding fields of ll.
|
|
func (ll *LabelList) Append(other LabelList) {
|
|
if len(ll.Includes) > 0 || len(other.Includes) > 0 {
|
|
ll.Includes = append(ll.Includes, other.Includes...)
|
|
}
|
|
if len(ll.Excludes) > 0 || len(other.Excludes) > 0 {
|
|
ll.Excludes = append(other.Excludes, other.Excludes...)
|
|
}
|
|
}
|
|
|
|
func UniqueBazelLabels(originalLabels []Label) []Label {
|
|
uniqueLabelsSet := make(map[Label]bool)
|
|
for _, l := range originalLabels {
|
|
uniqueLabelsSet[l] = true
|
|
}
|
|
var uniqueLabels []Label
|
|
for l, _ := range uniqueLabelsSet {
|
|
uniqueLabels = append(uniqueLabels, l)
|
|
}
|
|
sort.SliceStable(uniqueLabels, func(i, j int) bool {
|
|
return uniqueLabels[i].Label < uniqueLabels[j].Label
|
|
})
|
|
return uniqueLabels
|
|
}
|
|
|
|
func UniqueBazelLabelList(originalLabelList LabelList) LabelList {
|
|
var uniqueLabelList LabelList
|
|
uniqueLabelList.Includes = UniqueBazelLabels(originalLabelList.Includes)
|
|
uniqueLabelList.Excludes = UniqueBazelLabels(originalLabelList.Excludes)
|
|
return uniqueLabelList
|
|
}
|
|
|
|
// Subtract needle from haystack
|
|
func SubtractStrings(haystack []string, needle []string) []string {
|
|
// This is really a set
|
|
remainder := make(map[string]bool)
|
|
|
|
for _, s := range haystack {
|
|
remainder[s] = true
|
|
}
|
|
for _, s := range needle {
|
|
delete(remainder, s)
|
|
}
|
|
|
|
var strings []string
|
|
for s, _ := range remainder {
|
|
strings = append(strings, s)
|
|
}
|
|
|
|
sort.SliceStable(strings, func(i, j int) bool {
|
|
return strings[i] < strings[j]
|
|
})
|
|
|
|
return strings
|
|
}
|
|
|
|
// Subtract needle from haystack
|
|
func SubtractBazelLabels(haystack []Label, needle []Label) []Label {
|
|
// This is really a set
|
|
remainder := make(map[Label]bool)
|
|
|
|
for _, label := range haystack {
|
|
remainder[label] = true
|
|
}
|
|
for _, label := range needle {
|
|
delete(remainder, label)
|
|
}
|
|
|
|
var labels []Label
|
|
for label, _ := range remainder {
|
|
labels = append(labels, label)
|
|
}
|
|
|
|
sort.SliceStable(labels, func(i, j int) bool {
|
|
return labels[i].Label < labels[j].Label
|
|
})
|
|
|
|
return labels
|
|
}
|
|
|
|
// Subtract needle from haystack
|
|
func SubtractBazelLabelList(haystack LabelList, needle LabelList) LabelList {
|
|
var result LabelList
|
|
result.Includes = SubtractBazelLabels(haystack.Includes, needle.Includes)
|
|
// NOTE: Excludes are intentionally not subtracted
|
|
result.Excludes = haystack.Excludes
|
|
return result
|
|
}
|
|
|
|
const (
|
|
// ArchType names in arch.go
|
|
ARCH_ARM = "arm"
|
|
ARCH_ARM64 = "arm64"
|
|
ARCH_X86 = "x86"
|
|
ARCH_X86_64 = "x86_64"
|
|
|
|
// OsType names in arch.go
|
|
OS_ANDROID = "android"
|
|
OS_DARWIN = "darwin"
|
|
OS_FUCHSIA = "fuchsia"
|
|
OS_LINUX = "linux_glibc"
|
|
OS_LINUX_BIONIC = "linux_bionic"
|
|
OS_WINDOWS = "windows"
|
|
)
|
|
|
|
var (
|
|
// These are the list of OSes and architectures with a Bazel config_setting
|
|
// and constraint value equivalent. These exist in arch.go, but the android
|
|
// package depends on the bazel package, so a cyclic dependency prevents
|
|
// using those variables here.
|
|
|
|
// A map of architectures to the Bazel label of the constraint_value
|
|
// for the @platforms//cpu:cpu constraint_setting
|
|
PlatformArchMap = map[string]string{
|
|
ARCH_ARM: "//build/bazel/platforms/arch:arm",
|
|
ARCH_ARM64: "//build/bazel/platforms/arch:arm64",
|
|
ARCH_X86: "//build/bazel/platforms/arch:x86",
|
|
ARCH_X86_64: "//build/bazel/platforms/arch:x86_64",
|
|
}
|
|
|
|
// A map of target operating systems to the Bazel label of the
|
|
// constraint_value for the @platforms//os:os constraint_setting
|
|
PlatformOsMap = map[string]string{
|
|
OS_ANDROID: "//build/bazel/platforms/os:android",
|
|
OS_DARWIN: "//build/bazel/platforms/os:darwin",
|
|
OS_FUCHSIA: "//build/bazel/platforms/os:fuchsia",
|
|
OS_LINUX: "//build/bazel/platforms/os:linux",
|
|
OS_LINUX_BIONIC: "//build/bazel/platforms/os:linux_bionic",
|
|
OS_WINDOWS: "//build/bazel/platforms/os:windows",
|
|
}
|
|
)
|
|
|
|
type Attribute interface {
|
|
HasConfigurableValues() bool
|
|
}
|
|
|
|
// Arch-specific label_list typed Bazel attribute values. This should correspond
|
|
// to the types of architectures supported for compilation in arch.go.
|
|
type labelListArchValues struct {
|
|
X86 LabelList
|
|
X86_64 LabelList
|
|
Arm LabelList
|
|
Arm64 LabelList
|
|
Common LabelList
|
|
}
|
|
|
|
type labelListOsValues struct {
|
|
Android LabelList
|
|
Darwin LabelList
|
|
Fuchsia LabelList
|
|
Linux LabelList
|
|
LinuxBionic LabelList
|
|
Windows LabelList
|
|
}
|
|
|
|
// LabelListAttribute is used to represent a list of Bazel labels as an
|
|
// attribute.
|
|
type LabelListAttribute struct {
|
|
// The non-arch specific attribute label list Value. Required.
|
|
Value LabelList
|
|
|
|
// The arch-specific attribute label list values. Optional. If used, these
|
|
// are generated in a select statement and appended to the non-arch specific
|
|
// label list Value.
|
|
ArchValues labelListArchValues
|
|
|
|
// The os-specific attribute label list values. Optional. If used, these
|
|
// are generated in a select statement and appended to the non-os specific
|
|
// label list Value.
|
|
OsValues labelListOsValues
|
|
}
|
|
|
|
// MakeLabelListAttribute initializes a LabelListAttribute with the non-arch specific value.
|
|
func MakeLabelListAttribute(value LabelList) LabelListAttribute {
|
|
return LabelListAttribute{Value: UniqueBazelLabelList(value)}
|
|
}
|
|
|
|
// HasArchSpecificValues returns true if the attribute contains
|
|
// architecture-specific label_list values.
|
|
func (attrs LabelListAttribute) HasConfigurableValues() bool {
|
|
for arch := range PlatformArchMap {
|
|
if len(attrs.GetValueForArch(arch).Includes) > 0 {
|
|
return true
|
|
}
|
|
}
|
|
|
|
for os := range PlatformOsMap {
|
|
if len(attrs.GetValueForOS(os).Includes) > 0 {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (attrs *LabelListAttribute) archValuePtrs() map[string]*LabelList {
|
|
return map[string]*LabelList{
|
|
ARCH_X86: &attrs.ArchValues.X86,
|
|
ARCH_X86_64: &attrs.ArchValues.X86_64,
|
|
ARCH_ARM: &attrs.ArchValues.Arm,
|
|
ARCH_ARM64: &attrs.ArchValues.Arm64,
|
|
}
|
|
}
|
|
|
|
// GetValueForArch returns the label_list attribute value for an architecture.
|
|
func (attrs *LabelListAttribute) GetValueForArch(arch string) LabelList {
|
|
var v *LabelList
|
|
if v = attrs.archValuePtrs()[arch]; v == nil {
|
|
panic(fmt.Errorf("Unknown arch: %s", arch))
|
|
}
|
|
return *v
|
|
}
|
|
|
|
// SetValueForArch sets the label_list attribute value for an architecture.
|
|
func (attrs *LabelListAttribute) SetValueForArch(arch string, value LabelList) {
|
|
var v *LabelList
|
|
if v = attrs.archValuePtrs()[arch]; v == nil {
|
|
panic(fmt.Errorf("Unknown arch: %s", arch))
|
|
}
|
|
*v = value
|
|
}
|
|
|
|
func (attrs *LabelListAttribute) osValuePtrs() map[string]*LabelList {
|
|
return map[string]*LabelList{
|
|
OS_ANDROID: &attrs.OsValues.Android,
|
|
OS_DARWIN: &attrs.OsValues.Darwin,
|
|
OS_FUCHSIA: &attrs.OsValues.Fuchsia,
|
|
OS_LINUX: &attrs.OsValues.Linux,
|
|
OS_LINUX_BIONIC: &attrs.OsValues.LinuxBionic,
|
|
OS_WINDOWS: &attrs.OsValues.Windows,
|
|
}
|
|
}
|
|
|
|
// GetValueForOS returns the label_list attribute value for an OS target.
|
|
func (attrs *LabelListAttribute) GetValueForOS(os string) LabelList {
|
|
var v *LabelList
|
|
if v = attrs.osValuePtrs()[os]; v == nil {
|
|
panic(fmt.Errorf("Unknown os: %s", os))
|
|
}
|
|
return *v
|
|
}
|
|
|
|
// SetValueForArch sets the label_list attribute value for an OS target.
|
|
func (attrs *LabelListAttribute) SetValueForOS(os string, value LabelList) {
|
|
var v *LabelList
|
|
if v = attrs.osValuePtrs()[os]; v == nil {
|
|
panic(fmt.Errorf("Unknown os: %s", os))
|
|
}
|
|
*v = value
|
|
}
|
|
|
|
// StringListAttribute corresponds to the string_list Bazel attribute type with
|
|
// support for additional metadata, like configurations.
|
|
type StringListAttribute struct {
|
|
// The base value of the string list attribute.
|
|
Value []string
|
|
|
|
// The arch-specific attribute string list values. Optional. If used, these
|
|
// are generated in a select statement and appended to the non-arch specific
|
|
// label list Value.
|
|
ArchValues stringListArchValues
|
|
|
|
// The os-specific attribute string list values. Optional. If used, these
|
|
// are generated in a select statement and appended to the non-os specific
|
|
// label list Value.
|
|
OsValues stringListOsValues
|
|
}
|
|
|
|
// MakeStringListAttribute initializes a StringListAttribute with the non-arch specific value.
|
|
func MakeStringListAttribute(value []string) StringListAttribute {
|
|
// NOTE: These strings are not necessarily unique or sorted.
|
|
return StringListAttribute{Value: value}
|
|
}
|
|
|
|
// Arch-specific string_list typed Bazel attribute values. This should correspond
|
|
// to the types of architectures supported for compilation in arch.go.
|
|
type stringListArchValues struct {
|
|
X86 []string
|
|
X86_64 []string
|
|
Arm []string
|
|
Arm64 []string
|
|
Common []string
|
|
}
|
|
|
|
type stringListOsValues struct {
|
|
Android []string
|
|
Darwin []string
|
|
Fuchsia []string
|
|
Linux []string
|
|
LinuxBionic []string
|
|
Windows []string
|
|
}
|
|
|
|
// HasConfigurableValues returns true if the attribute contains
|
|
// architecture-specific string_list values.
|
|
func (attrs StringListAttribute) HasConfigurableValues() bool {
|
|
for arch := range PlatformArchMap {
|
|
if len(attrs.GetValueForArch(arch)) > 0 {
|
|
return true
|
|
}
|
|
}
|
|
|
|
for os := range PlatformOsMap {
|
|
if len(attrs.GetValueForOS(os)) > 0 {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (attrs *StringListAttribute) archValuePtrs() map[string]*[]string {
|
|
return map[string]*[]string{
|
|
ARCH_X86: &attrs.ArchValues.X86,
|
|
ARCH_X86_64: &attrs.ArchValues.X86_64,
|
|
ARCH_ARM: &attrs.ArchValues.Arm,
|
|
ARCH_ARM64: &attrs.ArchValues.Arm64,
|
|
}
|
|
}
|
|
|
|
// GetValueForArch returns the string_list attribute value for an architecture.
|
|
func (attrs *StringListAttribute) GetValueForArch(arch string) []string {
|
|
var v *[]string
|
|
if v = attrs.archValuePtrs()[arch]; v == nil {
|
|
panic(fmt.Errorf("Unknown arch: %s", arch))
|
|
}
|
|
return *v
|
|
}
|
|
|
|
// SetValueForArch sets the string_list attribute value for an architecture.
|
|
func (attrs *StringListAttribute) SetValueForArch(arch string, value []string) {
|
|
var v *[]string
|
|
if v = attrs.archValuePtrs()[arch]; v == nil {
|
|
panic(fmt.Errorf("Unknown arch: %s", arch))
|
|
}
|
|
*v = value
|
|
}
|
|
|
|
func (attrs *StringListAttribute) osValuePtrs() map[string]*[]string {
|
|
return map[string]*[]string{
|
|
OS_ANDROID: &attrs.OsValues.Android,
|
|
OS_DARWIN: &attrs.OsValues.Darwin,
|
|
OS_FUCHSIA: &attrs.OsValues.Fuchsia,
|
|
OS_LINUX: &attrs.OsValues.Linux,
|
|
OS_LINUX_BIONIC: &attrs.OsValues.LinuxBionic,
|
|
OS_WINDOWS: &attrs.OsValues.Windows,
|
|
}
|
|
}
|
|
|
|
// GetValueForOS returns the string_list attribute value for an OS target.
|
|
func (attrs *StringListAttribute) GetValueForOS(os string) []string {
|
|
var v *[]string
|
|
if v = attrs.osValuePtrs()[os]; v == nil {
|
|
panic(fmt.Errorf("Unknown os: %s", os))
|
|
}
|
|
return *v
|
|
}
|
|
|
|
// SetValueForArch sets the string_list attribute value for an OS target.
|
|
func (attrs *StringListAttribute) SetValueForOS(os string, value []string) {
|
|
var v *[]string
|
|
if v = attrs.osValuePtrs()[os]; v == nil {
|
|
panic(fmt.Errorf("Unknown os: %s", os))
|
|
}
|
|
*v = value
|
|
}
|
|
|
|
// TryVariableSubstitution, replace string substitution formatting within each string in slice with
|
|
// Starlark string.format compatible tag for productVariable.
|
|
func TryVariableSubstitutions(slice []string, productVariable string) ([]string, bool) {
|
|
ret := make([]string, 0, len(slice))
|
|
changesMade := false
|
|
for _, s := range slice {
|
|
newS, changed := TryVariableSubstitution(s, productVariable)
|
|
ret = append(ret, newS)
|
|
changesMade = changesMade || changed
|
|
}
|
|
return ret, changesMade
|
|
}
|
|
|
|
// TryVariableSubstitution, replace string substitution formatting within s with Starlark
|
|
// string.format compatible tag for productVariable.
|
|
func TryVariableSubstitution(s string, productVariable string) (string, bool) {
|
|
sub := productVariableSubstitutionPattern.ReplaceAllString(s, "{"+productVariable+"}")
|
|
return sub, s != sub
|
|
}
|