1d476fcbeb
Bug: 67754178 Test: m -j32 checkbuild && USE_D8=true m -j32 checkbuild Change-Id: If63afc10ceb5e753bbb7f195bb8a895eaef10775
214 lines
8.1 KiB
Go
214 lines
8.1 KiB
Go
// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package android
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import (
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"fmt"
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"strings"
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"github.com/google/blueprint"
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"github.com/google/blueprint/pathtools"
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)
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// AndroidPackageContext is a wrapper for blueprint.PackageContext that adds
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// some android-specific helper functions.
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type AndroidPackageContext struct {
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blueprint.PackageContext
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}
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func NewPackageContext(pkgPath string) AndroidPackageContext {
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return AndroidPackageContext{blueprint.NewPackageContext(pkgPath)}
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}
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// configErrorWrapper can be used with Path functions when a Context is not
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// available. A Config can be provided, and errors are stored as a list for
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// later retrieval.
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//
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// The most common use here will be with VariableFunc, where only a config is
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// provided, and an error should be returned.
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type configErrorWrapper struct {
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pctx AndroidPackageContext
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config Config
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errors []error
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}
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var _ PathContext = &configErrorWrapper{}
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var _ errorfContext = &configErrorWrapper{}
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func (e *configErrorWrapper) Config() interface{} {
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return e.config
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}
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func (e *configErrorWrapper) Errorf(format string, args ...interface{}) {
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e.errors = append(e.errors, fmt.Errorf(format, args...))
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}
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func (e *configErrorWrapper) AddNinjaFileDeps(deps ...string) {
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e.pctx.AddNinjaFileDeps(deps...)
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}
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func (e *configErrorWrapper) Fs() pathtools.FileSystem {
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return nil
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}
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// SourcePathVariable returns a Variable whose value is the source directory
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// appended with the supplied path. It may only be called during a Go package's
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// initialization - either from the init() function or as part of a
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// package-scoped variable's initialization.
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func (p AndroidPackageContext) SourcePathVariable(name, path string) blueprint.Variable {
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return p.VariableFunc(name, func(config interface{}) (string, error) {
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ctx := &configErrorWrapper{p, config.(Config), []error{}}
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p := safePathForSource(ctx, path)
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if len(ctx.errors) > 0 {
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return "", ctx.errors[0]
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}
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return p.String(), nil
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})
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}
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// SourcePathsVariable returns a Variable whose value is the source directory
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// appended with the supplied paths, joined with separator. It may only be
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// called during a Go package's initialization - either from the init()
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// function or as part of a package-scoped variable's initialization.
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func (p AndroidPackageContext) SourcePathsVariable(name, separator string, paths ...string) blueprint.Variable {
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return p.VariableFunc(name, func(config interface{}) (string, error) {
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ctx := &configErrorWrapper{p, config.(Config), []error{}}
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var ret []string
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for _, path := range paths {
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p := safePathForSource(ctx, path)
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if len(ctx.errors) > 0 {
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return "", ctx.errors[0]
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}
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ret = append(ret, p.String())
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}
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return strings.Join(ret, separator), nil
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})
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}
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// SourcePathVariableWithEnvOverride returns a Variable whose value is the source directory
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// appended with the supplied path, or the value of the given environment variable if it is set.
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// The environment variable is not required to point to a path inside the source tree.
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// It may only be called during a Go package's initialization - either from the init() function or
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// as part of a package-scoped variable's initialization.
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func (p AndroidPackageContext) SourcePathVariableWithEnvOverride(name, path, env string) blueprint.Variable {
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return p.VariableFunc(name, func(config interface{}) (string, error) {
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ctx := &configErrorWrapper{p, config.(Config), []error{}}
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p := safePathForSource(ctx, path)
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if len(ctx.errors) > 0 {
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return "", ctx.errors[0]
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}
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return config.(Config).GetenvWithDefault(env, p.String()), nil
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})
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}
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// HostBinVariable returns a Variable whose value is the path to a host tool
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// in the bin directory for host targets. It may only be called during a Go
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// package's initialization - either from the init() function or as part of a
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// package-scoped variable's initialization.
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func (p AndroidPackageContext) HostBinToolVariable(name, path string) blueprint.Variable {
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return p.VariableFunc(name, func(config interface{}) (string, error) {
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po, err := p.HostBinToolPath(config, path)
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if err != nil {
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return "", err
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}
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return po.String(), nil
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})
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}
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func (p AndroidPackageContext) HostBinToolPath(config interface{}, path string) (Path, error) {
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ctx := &configErrorWrapper{p, config.(Config), []error{}}
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pa := PathForOutput(ctx, "host", ctx.config.PrebuiltOS(), "bin", path)
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if len(ctx.errors) > 0 {
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return nil, ctx.errors[0]
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}
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return pa, nil
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}
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// HostJavaToolVariable returns a Variable whose value is the path to a host
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// tool in the frameworks directory for host targets. It may only be called
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// during a Go package's initialization - either from the init() function or as
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// part of a package-scoped variable's initialization.
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func (p AndroidPackageContext) HostJavaToolVariable(name, path string) blueprint.Variable {
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return p.VariableFunc(name, func(config interface{}) (string, error) {
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ctx := &configErrorWrapper{p, config.(Config), []error{}}
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p := PathForOutput(ctx, "host", ctx.config.PrebuiltOS(), "framework", path)
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if len(ctx.errors) > 0 {
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return "", ctx.errors[0]
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}
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return p.String(), nil
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})
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}
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// IntermediatesPathVariable returns a Variable whose value is the intermediate
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// directory appended with the supplied path. It may only be called during a Go
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// package's initialization - either from the init() function or as part of a
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// package-scoped variable's initialization.
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func (p AndroidPackageContext) IntermediatesPathVariable(name, path string) blueprint.Variable {
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return p.VariableFunc(name, func(config interface{}) (string, error) {
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ctx := &configErrorWrapper{p, config.(Config), []error{}}
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p := PathForIntermediates(ctx, path)
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if len(ctx.errors) > 0 {
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return "", ctx.errors[0]
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}
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return p.String(), nil
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})
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}
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// PrefixedExistentPathsForSourcesVariable returns a Variable whose value is the
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// list of present source paths prefixed with the supplied prefix. It may only
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// be called during a Go package's initialization - either from the init()
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// function or as part of a package-scoped variable's initialization.
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func (p AndroidPackageContext) PrefixedExistentPathsForSourcesVariable(
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name, prefix string, paths []string) blueprint.Variable {
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return p.VariableFunc(name, func(config interface{}) (string, error) {
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ctx := &configErrorWrapper{p, config.(Config), []error{}}
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paths := ExistentPathsForSources(ctx, "", paths)
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if len(ctx.errors) > 0 {
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return "", ctx.errors[0]
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}
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return JoinWithPrefix(paths.Strings(), prefix), nil
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})
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}
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type RuleParams struct {
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blueprint.RuleParams
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GomaSupported bool
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}
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// AndroidStaticRule wraps blueprint.StaticRule and provides a default Pool if none is specified
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func (p AndroidPackageContext) AndroidStaticRule(name string, params blueprint.RuleParams,
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argNames ...string) blueprint.Rule {
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return p.AndroidRuleFunc(name, func(interface{}) (blueprint.RuleParams, error) {
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return params, nil
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}, argNames...)
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}
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// AndroidGomaStaticRule wraps blueprint.StaticRule but uses goma's parallelism if goma is enabled
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func (p AndroidPackageContext) AndroidGomaStaticRule(name string, params blueprint.RuleParams,
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argNames ...string) blueprint.Rule {
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return p.StaticRule(name, params, argNames...)
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}
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func (p AndroidPackageContext) AndroidRuleFunc(name string,
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f func(interface{}) (blueprint.RuleParams, error), argNames ...string) blueprint.Rule {
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return p.PackageContext.RuleFunc(name, func(config interface{}) (blueprint.RuleParams, error) {
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params, err := f(config)
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if config.(Config).UseGoma() && params.Pool == nil {
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// When USE_GOMA=true is set and the rule is not supported by goma, restrict jobs to the
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// local parallelism value
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params.Pool = localPool
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}
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return params, err
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}, argNames...)
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}
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