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// Copyright 2018 The Bazel Authors. 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 compile is a thin wrapper around aapt2 to compile android resources.
package compile
import (
"flag"
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
"strings"
"sync"
"src/common/golang/ziputils"
"src/tools/ak/types"
)
var (
// Cmd defines the command to run compile
Cmd = types.Command{
Init: Init,
Run: Run,
Desc: desc,
Flags: []string{
"aapt2",
"in",
"out",
},
}
in string
aapt2 string
out string
initOnce sync.Once
dirPerm os.FileMode = 0755
dirReplacer = strings.NewReplacer("sr-rLatn", "b+sr+Latn", "es-419", "b+es+419")
archiveSuffix = ".zip"
)
// Init initializes compile.
func Init() {
initOnce.Do(func() {
flag.StringVar(&aapt2, "aapt2", "", "Path to the aapt2 binary.")
flag.StringVar(&in, "in", "", "Input res bucket/dir to compile.")
flag.StringVar(&out, "out", "", "The compiled resource archive.")
})
}
func desc() string {
return "Compile android resources directory."
}
// Run is the entry point for compile.
func Run() {
if in == "" || aapt2 == "" || out == "" {
log.Fatal("Flags -in and -aapt2 and -out must be specified.")
}
fi, err := os.Stat(in)
if err != nil {
log.Fatal(err)
}
resDir := in
if !fi.IsDir() {
if strings.HasSuffix(resDir, archiveSuffix) {
// We are dealing with a resource archive.
td, err := ioutil.TempDir("", "-res")
if err != nil {
log.Fatal(err)
}
resDir = filepath.Join(td, "res/")
if err := os.MkdirAll(resDir, dirPerm); err != nil {
log.Fatal(err)
}
if err := ziputils.Unzip(in, td); err != nil {
log.Fatal(err)
}
} else {
// We are compiling a single file, but we need to provide dir.
resDir = filepath.Dir(filepath.Dir(resDir))
}
}
if err := sanitizeDirs(resDir, dirReplacer); err != nil {
log.Fatal(err)
}
cmd := exec.Command(aapt2, []string{"compile", "--legacy", "-o", out, "--dir", resDir}...)
if out, err := cmd.CombinedOutput(); err != nil {
log.Fatalf("error compiling resources for resource directory %s: %v\n%s", resDir, err, string(out))
}
}
// sanitizeDirs renames the directories that aapt is unable to parse
func sanitizeDirs(dir string, r *strings.Replacer) error {
src, err := os.Open(dir)
if err != nil {
return err
}
defer src.Close()
fs, err := src.Readdir(-1)
if err != nil {
return err
}
for _, f := range fs {
if f.Mode().IsDir() {
if qd := r.Replace(f.Name()); qd != f.Name() {
if err := os.Rename(filepath.Join(dir, f.Name()), filepath.Join(dir, qd)); err != nil {
return err
}
}
}
}
return nil
}
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