93 lines
3.2 KiB
Go
93 lines
3.2 KiB
Go
|
// Copyright 2023 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 etc
|
||
|
|
|
||
|
|
import (
|
||
|
|
"android/soong/android"
|
||
|
|
"path/filepath"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
RegisterInstallSymlinkBuildComponents(android.InitRegistrationContext)
|
||
|
|
}
|
||
|
|
|
||
|
|
func RegisterInstallSymlinkBuildComponents(ctx android.RegistrationContext) {
|
||
|
|
ctx.RegisterModuleType("install_symlink", InstallSymlinkFactory)
|
||
|
|
}
|
||
|
|
|
||
|
|
// install_symlink can be used to install an symlink with an arbitrary target to an arbitrary path
|
||
|
|
// on the device.
|
||
|
|
func InstallSymlinkFactory() android.Module {
|
||
|
|
module := &InstallSymlink{}
|
||
|
|
module.AddProperties(&module.properties)
|
||
|
|
android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
|
||
|
|
return module
|
||
|
|
}
|
||
|
|
|
||
|
|
type InstallSymlinkProperties struct {
|
||
|
|
// Where to install this symlink, relative to the partition it's installed on.
|
||
|
|
// Which partition it's installed on can be controlled by the vendor, system_ext, ramdisk, etc.
|
||
|
|
// properties.
|
||
|
|
Installed_location string
|
||
|
|
// The target of the symlink, aka where the symlink points.
|
||
|
|
Symlink_target string
|
||
|
|
}
|
||
|
|
|
||
|
|
type InstallSymlink struct {
|
||
|
|
android.ModuleBase
|
||
|
|
properties InstallSymlinkProperties
|
||
|
|
|
||
|
|
output android.Path
|
||
|
|
installedPath android.InstallPath
|
||
|
|
}
|
||
|
|
|
||
|
|
func (m *InstallSymlink) GenerateAndroidBuildActions(ctx android.ModuleContext) {
|
||
|
|
if filepath.Clean(m.properties.Symlink_target) != m.properties.Symlink_target {
|
||
|
|
ctx.PropertyErrorf("symlink_target", "Should be a clean filepath")
|
||
|
|
return
|
||
|
|
}
|
||
|
|
if filepath.Clean(m.properties.Installed_location) != m.properties.Installed_location {
|
||
|
|
ctx.PropertyErrorf("installed_location", "Should be a clean filepath")
|
||
|
|
return
|
||
|
|
}
|
||
|
|
if strings.HasPrefix(m.properties.Installed_location, "../") || strings.HasPrefix(m.properties.Installed_location, "/") {
|
||
|
|
ctx.PropertyErrorf("installed_location", "Should not start with / or ../")
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
out := android.PathForModuleOut(ctx, "out.txt")
|
||
|
|
android.WriteFileRuleVerbatim(ctx, out, "")
|
||
|
|
m.output = out
|
||
|
|
|
||
|
|
name := filepath.Base(m.properties.Installed_location)
|
||
|
|
installDir := android.PathForModuleInstall(ctx, filepath.Dir(m.properties.Installed_location))
|
||
|
|
m.installedPath = ctx.InstallAbsoluteSymlink(installDir, name, m.properties.Symlink_target)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (m *InstallSymlink) AndroidMkEntries() []android.AndroidMkEntries {
|
||
|
|
return []android.AndroidMkEntries{{
|
||
|
|
Class: "FAKE",
|
||
|
|
// Need at least one output file in order for this to take effect.
|
||
|
|
OutputFile: android.OptionalPathForPath(m.output),
|
||
|
|
Include: "$(BUILD_PHONY_PACKAGE)",
|
||
|
|
ExtraEntries: []android.AndroidMkExtraEntriesFunc{
|
||
|
|
func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
|
||
|
|
entries.AddStrings("LOCAL_SOONG_INSTALL_SYMLINKS", m.installedPath.String())
|
||
|
|
},
|
||
|
|
},
|
||
|
|
}}
|
||
|
|
}
|