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Commit 448a15c8 authored by Adam Lesinski's avatar Adam Lesinski
Browse files

AAPT2: Add a daemon mode 

Gradle and other build tools that need to frequently interact with aapt2
can use the daemon mode to issue regular CLI commands without paying
the process start cost for each invocation.

Test: manual
Change-Id: I543858ed46496278bad643f0dae688c924ec6c3f
parent 668feb25

tools/aapt2/Main.cpp

+92 −36
Original line number Diff line number Diff line
@@ -24,10 +24,16 @@ 
#include <iostream>

#include <vector>



#include "android-base/stringprintf.h"

#include "android-base/utf8.h"

#include "androidfw/StringPiece.h"



#include "Diagnostics.h"

#include "util/Files.h"

#include "util/Util.h"



using ::android::StringPiece;

using ::android::base::StringPrintf;



namespace aapt {
@@ -37,53 +43,103 @@ static const char* sMajorVersion = "2"; 
// Update minor version whenever a feature or flag is added.

static const char* sMinorVersion = "18";



int PrintVersion() {

  std::cerr << "Android Asset Packaging Tool (aapt) " << sMajorVersion << "."

            << sMinorVersion << std::endl;

static void PrintVersion() {

  std::cerr << StringPrintf("Android Asset Packaging Tool (aapt) %s:%s", sMajorVersion,

                            sMinorVersion)

            << std::endl;

}



static void PrintUsage() {

  std::cerr << "\nusage: aapt2 [compile|link|dump|diff|optimize|version] ..." << std::endl;

}



extern int Compile(const std::vector<StringPiece>& args, IDiagnostics* diagnostics);

extern int Link(const std::vector<StringPiece>& args, IDiagnostics* diagnostics);

extern int Dump(const std::vector<StringPiece>& args);

extern int Diff(const std::vector<StringPiece>& args);

extern int Optimize(const std::vector<StringPiece>& args);



static int ExecuteCommand(const StringPiece& command, const std::vector<StringPiece>& args,

                          IDiagnostics* diagnostics) {

  if (command == "compile" || command == "c") {

    return Compile(args, diagnostics);

  } else if (command == "link" || command == "l") {

    return Link(args, diagnostics);

  } else if (command == "dump" || command == "d") {

    return Dump(args);

  } else if (command == "diff") {

    return Diff(args);

  } else if (command == "optimize") {

    return Optimize(args);

  } else if (command == "version") {

    PrintVersion();

    return 0;

  }

  diagnostics->Error(DiagMessage() << "unknown command '" << command << "'");

  return -1;

}



static void RunDaemon(IDiagnostics* diagnostics) {

  std::cout << "Ready" << std::endl;



  // Run in daemon mode. Each line of input from stdin is treated as a command line argument

  // invocation. This means we need to split the line into a vector of args.

  for (std::string line; std::getline(std::cin, line);) {

    const util::Tokenizer tokenizer = util::Tokenize(line, file::sPathSep);

    auto token_iter = tokenizer.begin();

    if (token_iter == tokenizer.end()) {

      diagnostics->Error(DiagMessage() << "no command");

      continue;

    }



    const StringPiece command(*token_iter);

    if (command == "quit") {

      break;

    }



extern int Compile(const std::vector<android::StringPiece>& args, IDiagnostics* diagnostics);

extern int Link(const std::vector<android::StringPiece>& args, IDiagnostics* diagnostics);

extern int Dump(const std::vector<android::StringPiece>& args);

extern int Diff(const std::vector<android::StringPiece>& args);

extern int Optimize(const std::vector<android::StringPiece>& args);

    ++token_iter;



    std::vector<StringPiece> args;

    args.insert(args.end(), token_iter, tokenizer.end());

    ExecuteCommand(command, args, diagnostics);

    std::cout << "Done" << std::endl;

  }



  std::cout << "Exiting daemon" << std::endl;

}



}  // namespace aapt



int MainImpl(int argc, char** argv) {

  if (argc >= 2) {

  if (argc < 2) {

    std::cerr << "no command specified\n";

    aapt::PrintUsage();

    return -1;

  }



  argv += 1;

  argc -= 1;



    std::vector<android::StringPiece> args;

  aapt::StdErrDiagnostics diagnostics;



  // Collect the arguments starting after the program name and command name.

  std::vector<StringPiece> args;

  for (int i = 1; i < argc; i++) {

    args.push_back(argv[i]);

  }



    android::StringPiece command(argv[0]);

    if (command == "compile" || command == "c") {

      aapt::StdErrDiagnostics diagnostics;

      return aapt::Compile(args, &diagnostics);

    } else if (command == "link" || command == "l") {

      aapt::StdErrDiagnostics diagnostics;

      return aapt::Link(args, &diagnostics);

    } else if (command == "dump" || command == "d") {

      return aapt::Dump(args);

    } else if (command == "diff") {

      return aapt::Diff(args);

    } else if (command == "optimize") {

      return aapt::Optimize(args);

    } else if (command == "version") {

      return aapt::PrintVersion();

  const StringPiece command(argv[0]);

  if (command != "daemon" && command != "m") {

    // Single execution.

    const int result = aapt::ExecuteCommand(command, args, &diagnostics);

    if (result < 0) {

      aapt::PrintUsage();

    }

    std::cerr << "unknown command '" << command << "'\n";

  } else {

    std::cerr << "no command specified\n";

    return result;

  }



  std::cerr << "\nusage: aapt2 [compile|link|dump|diff|optimize|version] ..." << std::endl;

  return 1;

  aapt::RunDaemon(&diagnostics);

  return 0;

}



int main(int argc, char** argv) {

tools/aapt2/util/Files.h

+2 −0
Original line number Diff line number Diff line
@@ -34,8 +34,10 @@ namespace file { 


#ifdef _WIN32

constexpr const char sDirSep = '\\';

constexpr const char sPathSep = ';';

#else

constexpr const char sDirSep = '/';

constexpr const char sPathSep = ':';

#endif



enum class FileType {

tools/aapt2/util/Util.h

+12 −2
Original line number Diff line number Diff line
@@ -228,6 +228,12 @@ class Tokenizer { 
 public:

  class iterator {

   public:

    using reference = android::StringPiece&;

    using value_type = android::StringPiece;

    using difference_type = size_t;

    using pointer = android::StringPiece*;

    using iterator_category = std::forward_iterator_tag;



    iterator(const iterator&) = default;

    iterator& operator=(const iterator&) = default;
@@ -250,9 +256,13 @@ class Tokenizer { 


  Tokenizer(const android::StringPiece& str, char sep);



  iterator begin() { return begin_; }

  iterator begin() const {

    return begin_;

  }



  iterator end() { return end_; }

  iterator end() const {

    return end_;

  }



 private:

  const iterator begin_;