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Commit 9fa5cefe authored by Elliott Hughes's avatar Elliott Hughes Committed by Gerrit Code Review
Browse files

Merge "Simplify adb LinePrinter newline handling."

parents 98a82573 77f539ab

adb/file_sync_client.cpp

+7 −8
Original line number Diff line number Diff line
@@ -76,6 +76,8 @@ class SyncConnection { 
            ReadOrderlyShutdown(fd);

        }

        adb_close(fd);



        line_printer_.KeepInfoLine();

    }



    bool IsValid() { return fd >= 0; }
@@ -243,8 +245,7 @@ class SyncConnection { 
    }



    void Print(const std::string& s) {

        // TODO: we actually don't want ELIDE; we want "ELIDE if smart, FULL if dumb".

        line_printer_.Print(s, LinePrinter::ELIDE);

        line_printer_.Print(s, LinePrinter::INFO);

    }



    void Printf(const char* fmt, ...) __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 2, 3))) {
@@ -265,7 +266,7 @@ class SyncConnection { 
        android::base::StringAppendV(&s, fmt, ap);

        va_end(ap);



        line_printer_.Print(s, LinePrinter::FULL);

        line_printer_.Print(s, LinePrinter::ERROR);

    }



    void Warning(const char* fmt, ...) __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 2, 3))) {
@@ -276,7 +277,7 @@ class SyncConnection { 
        android::base::StringAppendV(&s, fmt, ap);

        va_end(ap);



        line_printer_.Print(s, LinePrinter::FULL);

        line_printer_.Print(s, LinePrinter::WARNING);

    }



    uint64_t total_bytes;
@@ -664,7 +665,7 @@ static bool copy_local_dir_remote(SyncConnection& sc, std::string lpath, 
        }

    }



    sc.Printf("%s: %d file%s pushed. %d file%s skipped.%s\n", rpath.c_str(),

    sc.Printf("%s: %d file%s pushed. %d file%s skipped.%s", rpath.c_str(),

              pushed, (pushed == 1) ? "" : "s", skipped,

              (skipped == 1) ? "" : "s", sc.TransferRate().c_str());

    return true;
@@ -739,7 +740,6 @@ bool do_sync_push(const std::vector<const char*>& srcs, const char* dst) { 
        success &= sync_send(sc, src_path, dst_path, st.st_mtime, st.st_mode);

    }



    sc.Print("\n");

    return success;

}
@@ -858,7 +858,7 @@ static bool copy_remote_dir_local(SyncConnection& sc, std::string rpath, 
        }

    }



    sc.Printf("%s: %d file%s pulled. %d file%s skipped.%s\n", rpath.c_str(),

    sc.Printf("%s: %d file%s pulled. %d file%s skipped.%s", rpath.c_str(),

              pulled, (pulled == 1) ? "" : "s", skipped,

              (skipped == 1) ? "" : "s", sc.TransferRate().c_str());

    return true;
@@ -967,7 +967,6 @@ bool do_sync_pull(const std::vector<const char*>& srcs, const char* dst, 
        }

    }



    sc.Print("\n");

    return success;

}

adb/line_printer.cpp

+20 −54
Original line number Diff line number Diff line
@@ -43,7 +43,7 @@ string ElideMiddle(const string& str, size_t width) { 
  return result;

}



LinePrinter::LinePrinter() : have_blank_line_(true), console_locked_(false) {

LinePrinter::LinePrinter() : have_blank_line_(true) {

#ifndef _WIN32

  const char* term = getenv("TERM");

  smart_terminal_ = unix_isatty(1) && term && string(term) != "dumb";
@@ -59,20 +59,24 @@ LinePrinter::LinePrinter() : have_blank_line_(true), console_locked_(false) { 
#endif

}



static void Out(const std::string& s) {

  // Avoid printf and C strings, since the actual output might contain null

  // bytes like UTF-16 does (yuck).

  fwrite(s.data(), 1, s.size(), stdout);

}



void LinePrinter::Print(string to_print, LineType type) {

  if (console_locked_) {

    line_buffer_ = to_print;

    line_type_ = type;

  if (!smart_terminal_) {

    Out(to_print);

    return;

  }



  if (smart_terminal_) {

    printf("\r");  // Print over previous line, if any.

  // Print over previous line, if any.

  // On Windows, calling a C library function writing to stdout also handles

  // pausing the executable when the "Pause" key or Ctrl-S is pressed.

  }

  printf("\r");



  if (smart_terminal_ && type == ELIDE) {

  if (type == INFO) {

#ifdef _WIN32

    CONSOLE_SCREEN_BUFFER_INFO csbi;

    GetConsoleScreenBufferInfo(console_, &csbi);
@@ -105,57 +109,19 @@ void LinePrinter::Print(string to_print, LineType type) { 
    if ((ioctl(0, TIOCGWINSZ, &size) == 0) && size.ws_col) {

      to_print = ElideMiddle(to_print, size.ws_col);

    }

    printf("%s", to_print.c_str());

    Out(to_print);

    printf("\x1B[K");  // Clear to end of line.

    fflush(stdout);

#endif



    have_blank_line_ = false;

  } else {

    printf("%s\n", to_print.c_str());

  }

}



void LinePrinter::PrintOrBuffer(const char* data, size_t size) {

  if (console_locked_) {

    output_buffer_.append(data, size);

  } else {

    // Avoid printf and C strings, since the actual output might contain null

    // bytes like UTF-16 does (yuck).

    fwrite(data, 1, size, stdout);

    Out(to_print);

    Out("\n");

    have_blank_line_ = true;

  }

}



void LinePrinter::PrintOnNewLine(const string& to_print) {

  if (console_locked_ && !line_buffer_.empty()) {

    output_buffer_.append(line_buffer_);

    output_buffer_.append(1, '\n');

    line_buffer_.clear();

  }

  if (!have_blank_line_) {

    PrintOrBuffer("\n", 1);

  }

  if (!to_print.empty()) {

    PrintOrBuffer(&to_print[0], to_print.size());

  }

  have_blank_line_ = to_print.empty() || *to_print.rbegin() == '\n';

}



void LinePrinter::SetConsoleLocked(bool locked) {

  if (locked == console_locked_)

    return;



  if (locked)

    PrintOnNewLine("");



  console_locked_ = locked;



  if (!locked) {

    PrintOnNewLine(output_buffer_);

    if (!line_buffer_.empty()) {

      Print(line_buffer_, line_type_);

    }

    output_buffer_.clear();

    line_buffer_.clear();

  }

void LinePrinter::KeepInfoLine() {

  if (!have_blank_line_) Out("\n");

}

adb/line_printer.h

+6 −27
Original line number Diff line number Diff line
@@ -26,20 +26,14 @@ struct LinePrinter { 
  bool is_smart_terminal() const { return smart_terminal_; }

  void set_smart_terminal(bool smart) { smart_terminal_ = smart; }



  enum LineType {

    FULL,

    ELIDE

  };

  /// Overprints the current line. If type is ELIDE, elides to_print to fit on

  /// one line.

  void Print(std::string to_print, LineType type);

  enum LineType { INFO, WARNING, ERROR };



  /// Prints a string on a new line, not overprinting previous output.

  void PrintOnNewLine(const std::string& to_print);

  /// Outputs the given line. INFO output will be overwritten.

  /// WARNING and ERROR appear on a line to themselves.

  void Print(std::string to_print, LineType type);



  /// Lock or unlock the console.  Any output sent to the LinePrinter while the

  /// console is locked will not be printed until it is unlocked.

  void SetConsoleLocked(bool locked);

  /// If there's an INFO line, keep it. If not, do nothing.

  void KeepInfoLine();



 private:

  /// Whether we can do fancy terminal control codes.
@@ -48,24 +42,9 @@ struct LinePrinter { 
  /// Whether the caret is at the beginning of a blank line.

  bool have_blank_line_;



  /// Whether console is locked.

  bool console_locked_;



  /// Buffered current line while console is locked.

  std::string line_buffer_;



  /// Buffered line type while console is locked.

  LineType line_type_;



  /// Buffered console output while console is locked.

  std::string output_buffer_;



#ifdef _WIN32

  void* console_;

#endif



  /// Print the given data to the console, or buffer it if it is locked.

  void PrintOrBuffer(const char *data, size_t size);

};



#endif  // NINJA_LINE_PRINTER_H_