Dexpreopt soong modules inside soong
Port the dexpreopt logic from Make to the dexpreopt package in Soong,
and use it to dexpreopt Soong modules. The same package is also
compiled into the dexpreopt_gen binary to generate dexpreopt scripts
for Make modules.
Bug: 119412419
Bug: 120273280
Test: no differences to dexpreopt outputs on aosp_sailfish system/,
only expected changes to dexpreopt outputs on system_other
(.vdex files for privileged Soong modules no longer incorrectly
contain .dex contents).
Change-Id: Ib67e2febf9ed921f06e8a86b9ec945c80dff35eb
diff --git a/dexpreopt/script.go b/dexpreopt/script.go
new file mode 100644
index 0000000..fd4cf82
--- /dev/null
+++ b/dexpreopt/script.go
@@ -0,0 +1,173 @@
+// Copyright 2018 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 dexpreopt
+
+import (
+ "fmt"
+ "sort"
+ "strings"
+)
+
+type Install struct {
+ From, To string
+}
+
+type Rule struct {
+ commands []*Command
+ installs []Install
+}
+
+func (r *Rule) Install(from, to string) {
+ r.installs = append(r.installs, Install{from, to})
+}
+
+func (r *Rule) Command() *Command {
+ command := &Command{}
+ r.commands = append(r.commands, command)
+ return command
+}
+
+func (r *Rule) Inputs() []string {
+ outputs := r.outputSet()
+
+ inputs := make(map[string]bool)
+ for _, c := range r.commands {
+ for _, input := range c.inputs {
+ if !outputs[input] {
+ inputs[input] = true
+ }
+ }
+ }
+
+ var inputList []string
+ for input := range inputs {
+ inputList = append(inputList, input)
+ }
+ sort.Strings(inputList)
+
+ return inputList
+}
+
+func (r *Rule) outputSet() map[string]bool {
+ outputs := make(map[string]bool)
+ for _, c := range r.commands {
+ for _, output := range c.outputs {
+ outputs[output] = true
+ }
+ }
+ return outputs
+}
+
+func (r *Rule) Outputs() []string {
+ outputs := r.outputSet()
+
+ var outputList []string
+ for output := range outputs {
+ outputList = append(outputList, output)
+ }
+ sort.Strings(outputList)
+ return outputList
+}
+
+func (r *Rule) Installs() []Install {
+ return append([]Install(nil), r.installs...)
+}
+
+func (r *Rule) Tools() []string {
+ var tools []string
+ for _, c := range r.commands {
+ tools = append(tools, c.tools...)
+ }
+ return tools
+}
+
+func (r *Rule) Commands() []string {
+ var commands []string
+ for _, c := range r.commands {
+ commands = append(commands, string(c.buf))
+ }
+ return commands
+}
+
+type Command struct {
+ buf []byte
+ inputs []string
+ outputs []string
+ tools []string
+}
+
+func (c *Command) Text(text string) *Command {
+ if len(c.buf) > 0 {
+ c.buf = append(c.buf, ' ')
+ }
+ c.buf = append(c.buf, text...)
+ return c
+}
+
+func (c *Command) Textf(format string, a ...interface{}) *Command {
+ return c.Text(fmt.Sprintf(format, a...))
+}
+
+func (c *Command) Flag(flag string) *Command {
+ return c.Text(flag)
+}
+
+func (c *Command) FlagWithArg(flag, arg string) *Command {
+ return c.Text(flag + arg)
+}
+
+func (c *Command) FlagWithList(flag string, list []string, sep string) *Command {
+ return c.Text(flag + strings.Join(list, sep))
+}
+
+func (c *Command) Tool(path string) *Command {
+ c.tools = append(c.tools, path)
+ return c.Text(path)
+}
+
+func (c *Command) Input(path string) *Command {
+ c.inputs = append(c.inputs, path)
+ return c.Text(path)
+}
+
+func (c *Command) Implicit(path string) *Command {
+ c.inputs = append(c.inputs, path)
+ return c
+}
+
+func (c *Command) Output(path string) *Command {
+ c.outputs = append(c.outputs, path)
+ return c.Text(path)
+}
+
+func (c *Command) ImplicitOutput(path string) *Command {
+ c.outputs = append(c.outputs, path)
+ return c
+}
+
+func (c *Command) FlagWithInput(flag, path string) *Command {
+ c.inputs = append(c.inputs, path)
+ return c.Text(flag + path)
+}
+
+func (c *Command) FlagWithInputList(flag string, paths []string, sep string) *Command {
+ c.inputs = append(c.inputs, paths...)
+ return c.FlagWithList(flag, paths, sep)
+}
+
+func (c *Command) FlagWithOutput(flag, path string) *Command {
+ c.outputs = append(c.outputs, path)
+ return c.Text(flag + path)
+}