platform_build_soong/common/paths.go
Colin Cross 68f55102da Support dependencies on environment variables
Ninja can't depend on environment variables, so modifying build
behavior based on environment variables requires coordinating
between the soong script that invokes ninja and the soong_build
manifest generator.

Allow any module to call Config.Getenv to get the contents of an
environment variable while registering a dependency on it.
After all modules have been processed write out the state of
all used environment variables to a JSON file called
.soong.environment.  During the next build the soong script
will use the soong_env tool to compare the contents of
.soong.environment to the current environment, and force a
build manifest regeneration by deleting the .soong.environment
file if any variables have changed.

Change-Id: Id0d81933a857bc2fc1cd7a393a3c6cec73dc4824
2015-03-26 14:13:49 -07:00

78 lines
2.7 KiB
Go

// Copyright 2015 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 common
import (
"path/filepath"
"github.com/google/blueprint"
)
// ModuleOutDir returns the path to the module-specific output directory.
func ModuleOutDir(ctx AndroidModuleContext) string {
return filepath.Join(".intermediates", ctx.ModuleDir(), ctx.ModuleName(), ctx.ModuleSubDir())
}
// ModuleSrcDir returns the path of the directory that all source file paths are
// specified relative to.
func ModuleSrcDir(ctx blueprint.ModuleContext) string {
config := ctx.Config().(Config)
return filepath.Join(config.SrcDir(), ctx.ModuleDir())
}
// ModuleBinDir returns the path to the module- and architecture-specific binary
// output directory.
func ModuleBinDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "bin")
}
// ModuleLibDir returns the path to the module- and architecture-specific
// library output directory.
func ModuleLibDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "lib")
}
// ModuleGenDir returns the module directory for generated files
// path.
func ModuleGenDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "gen")
}
// ModuleObjDir returns the module- and architecture-specific object directory
// path.
func ModuleObjDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "obj")
}
// ModuleGoPackageDir returns the module-specific package root directory path.
// This directory is where the final package .a files are output and where
// dependent modules search for this package via -I arguments.
func ModuleGoPackageDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "pkg")
}
// ModuleIncludeDir returns the module-specific public include directory path.
func ModuleIncludeDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "include")
}
// ModuleProtoDir returns the module-specific public proto include directory path.
func ModuleProtoDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "proto")
}
func ModuleJSCompiledDir(ctx AndroidModuleContext) string {
return filepath.Join(ModuleOutDir(ctx), "js")
}