Rename common to android
Rename the "common" package to "android", because common is too
generic. Also removes all android.Android naming stutter.
Ran:
gomvpkg -from 'android/soong/common' -to 'android/soong/android'
gorename -from '"android/soong/android".AndroidModuleContext' -to 'ModuleContext'
gorename -from '"android/soong/android".AndroidBaseContext' -to 'BaseContext'
gorename -from '"android/soong/android".AndroidModuleBase' -to 'ModuleBase'
gorename -from '"android/soong/android".AndroidBottomUpMutatorContext' -to 'BottomUpMutatorContext'
gorename -from '"android/soong/android".AndroidTopDownMutatorContext' -to 'TopDownMutatorContext'
gorename -from '"android/soong/android".AndroidModule' -to 'Module'
Change-Id: I3b23590b8ce7c8a1ea1139411d84a53163288da7
diff --git a/android/config.go b/android/config.go
new file mode 100644
index 0000000..8701960
--- /dev/null
+++ b/android/config.go
@@ -0,0 +1,323 @@
+// 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 android
+
+import (
+ "encoding/json"
+ "fmt"
+ "os"
+ "path/filepath"
+ "runtime"
+ "strings"
+ "sync"
+
+ "github.com/google/blueprint/proptools"
+)
+
+var Bool = proptools.Bool
+
+// The configuration file name
+const configFileName = "soong.config"
+const productVariablesFileName = "soong.variables"
+
+// A FileConfigurableOptions contains options which can be configured by the
+// config file. These will be included in the config struct.
+type FileConfigurableOptions struct {
+ Mega_device *bool `json:",omitempty"`
+}
+
+func (f *FileConfigurableOptions) SetDefaultConfig() {
+ *f = FileConfigurableOptions{}
+}
+
+type Config struct {
+ *config
+}
+
+// A config object represents the entire build configuration for Android.
+type config struct {
+ FileConfigurableOptions
+ ProductVariables productVariables
+
+ ConfigFileName string
+ ProductVariablesFileName string
+
+ DeviceArches []Arch
+ HostArches map[HostType][]Arch
+
+ srcDir string // the path of the root source directory
+ buildDir string // the path of the build output directory
+
+ envLock sync.Mutex
+ envDeps map[string]string
+ envFrozen bool
+
+ inMake bool
+}
+
+type jsonConfigurable interface {
+ SetDefaultConfig()
+}
+
+func loadConfig(config *config) error {
+ err := loadFromConfigFile(&config.FileConfigurableOptions, config.ConfigFileName)
+ if err != nil {
+ return err
+ }
+
+ return loadFromConfigFile(&config.ProductVariables, config.ProductVariablesFileName)
+}
+
+// loads configuration options from a JSON file in the cwd.
+func loadFromConfigFile(configurable jsonConfigurable, filename string) error {
+ // Try to open the file
+ configFileReader, err := os.Open(filename)
+ defer configFileReader.Close()
+ if os.IsNotExist(err) {
+ // Need to create a file, so that blueprint & ninja don't get in
+ // a dependency tracking loop.
+ // Make a file-configurable-options with defaults, write it out using
+ // a json writer.
+ configurable.SetDefaultConfig()
+ err = saveToConfigFile(configurable, filename)
+ if err != nil {
+ return err
+ }
+ } else {
+ // Make a decoder for it
+ jsonDecoder := json.NewDecoder(configFileReader)
+ err = jsonDecoder.Decode(configurable)
+ if err != nil {
+ return fmt.Errorf("config file: %s did not parse correctly: "+err.Error(), filename)
+ }
+ }
+
+ // No error
+ return nil
+}
+
+func saveToConfigFile(config jsonConfigurable, filename string) error {
+ data, err := json.MarshalIndent(&config, "", " ")
+ if err != nil {
+ return fmt.Errorf("cannot marshal config data: %s", err.Error())
+ }
+
+ configFileWriter, err := os.Create(filename)
+ if err != nil {
+ return fmt.Errorf("cannot create empty config file %s: %s\n", filename, err.Error())
+ }
+ defer configFileWriter.Close()
+
+ _, err = configFileWriter.Write(data)
+ if err != nil {
+ return fmt.Errorf("default config file: %s could not be written: %s", filename, err.Error())
+ }
+
+ _, err = configFileWriter.WriteString("\n")
+ if err != nil {
+ return fmt.Errorf("default config file: %s could not be written: %s", filename, err.Error())
+ }
+
+ return nil
+}
+
+// New creates a new Config object. The srcDir argument specifies the path to
+// the root source directory. It also loads the config file, if found.
+func NewConfig(srcDir, buildDir string) (Config, error) {
+ // Make a config with default options
+ config := Config{
+ config: &config{
+ ConfigFileName: filepath.Join(buildDir, configFileName),
+ ProductVariablesFileName: filepath.Join(buildDir, productVariablesFileName),
+
+ srcDir: srcDir,
+ buildDir: buildDir,
+ envDeps: make(map[string]string),
+ },
+ }
+
+ // Sanity check the build and source directories. This won't catch strange
+ // configurations with symlinks, but at least checks the obvious cases.
+ absBuildDir, err := filepath.Abs(buildDir)
+ if err != nil {
+ return Config{}, err
+ }
+
+ absSrcDir, err := filepath.Abs(srcDir)
+ if err != nil {
+ return Config{}, err
+ }
+
+ if strings.HasPrefix(absSrcDir, absBuildDir) {
+ return Config{}, fmt.Errorf("Build dir must not contain source directory")
+ }
+
+ // Load any configurable options from the configuration file
+ err = loadConfig(config.config)
+ if err != nil {
+ return Config{}, err
+ }
+
+ inMakeFile := filepath.Join(buildDir, ".soong.in_make")
+ if _, err := os.Stat(inMakeFile); err == nil {
+ config.inMake = true
+ }
+
+ hostArches, deviceArches, err := decodeArchProductVariables(config.ProductVariables)
+ if err != nil {
+ return Config{}, err
+ }
+
+ if Bool(config.Mega_device) {
+ deviceArches, err = decodeMegaDevice()
+ if err != nil {
+ return Config{}, err
+ }
+ }
+
+ config.HostArches = hostArches
+ config.DeviceArches = deviceArches
+
+ return config, nil
+}
+
+func (c *config) RemoveAbandonedFiles() bool {
+ return false
+}
+
+// PrebuiltOS returns the name of the host OS used in prebuilts directories
+func (c *config) PrebuiltOS() string {
+ switch runtime.GOOS {
+ case "linux":
+ return "linux-x86"
+ case "darwin":
+ return "darwin-x86"
+ default:
+ panic("Unknown GOOS")
+ }
+}
+
+// GoRoot returns the path to the root directory of the Go toolchain.
+func (c *config) GoRoot() string {
+ return fmt.Sprintf("%s/prebuilts/go/%s", c.srcDir, c.PrebuiltOS())
+}
+
+func (c *config) CpPreserveSymlinksFlags() string {
+ switch runtime.GOOS {
+ case "darwin":
+ return "-R"
+ case "linux":
+ return "-d"
+ default:
+ return ""
+ }
+}
+
+func (c *config) Getenv(key string) string {
+ var val string
+ var exists bool
+ c.envLock.Lock()
+ if val, exists = c.envDeps[key]; !exists {
+ if c.envFrozen {
+ panic("Cannot access new environment variables after envdeps are frozen")
+ }
+ val = os.Getenv(key)
+ c.envDeps[key] = val
+ }
+ c.envLock.Unlock()
+ return val
+}
+
+func (c *config) EnvDeps() map[string]string {
+ c.envLock.Lock()
+ c.envFrozen = true
+ c.envLock.Unlock()
+ return c.envDeps
+}
+
+func (c *config) EmbeddedInMake() bool {
+ return c.inMake
+}
+
+// DeviceName returns the name of the current device target
+// TODO: take an AndroidModuleContext to select the device name for multi-device builds
+func (c *config) DeviceName() string {
+ return *c.ProductVariables.DeviceName
+}
+
+func (c *config) DeviceUsesClang() bool {
+ if c.ProductVariables.DeviceUsesClang != nil {
+ return *c.ProductVariables.DeviceUsesClang
+ }
+ return true
+}
+
+func (c *config) ResourceOverlays() []SourcePath {
+ return nil
+}
+
+func (c *config) PlatformVersion() string {
+ return "M"
+}
+
+func (c *config) PlatformSdkVersion() string {
+ return "22"
+}
+
+func (c *config) BuildNumber() string {
+ return "000000"
+}
+
+func (c *config) ProductAaptConfig() []string {
+ return []string{"normal", "large", "xlarge", "hdpi", "xhdpi", "xxhdpi"}
+}
+
+func (c *config) ProductAaptPreferredConfig() string {
+ return "xhdpi"
+}
+
+func (c *config) ProductAaptCharacteristics() string {
+ return "nosdcard"
+}
+
+func (c *config) DefaultAppCertificateDir(ctx PathContext) SourcePath {
+ return PathForSource(ctx, "build/target/product/security")
+}
+
+func (c *config) DefaultAppCertificate(ctx PathContext) SourcePath {
+ return c.DefaultAppCertificateDir(ctx).Join(ctx, "testkey")
+}
+
+func (c *config) AllowMissingDependencies() bool {
+ return Bool(c.ProductVariables.Allow_missing_dependencies)
+}
+
+func (c *config) SkipDeviceInstall() bool {
+ return c.EmbeddedInMake() || Bool(c.Mega_device)
+}
+
+func (c *config) SanitizeHost() []string {
+ if c.ProductVariables.SanitizeHost == nil {
+ return nil
+ }
+ return *c.ProductVariables.SanitizeHost
+}
+
+func (c *config) SanitizeDevice() []string {
+ if c.ProductVariables.SanitizeDevice == nil {
+ return nil
+ }
+ return *c.ProductVariables.SanitizeDevice
+}