root/chrome/common/chrome_version_info_posix.cc

DEFINITIONS

1. GetVersionStringModifier
2. GetChannel

// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/common/chrome_version_info.h"

#include "base/strings/string_util.h"
#include "build/build_config.h"

namespace chrome {

// static
std::string VersionInfo::GetVersionStringModifier() {
  char* env = getenv("CHROME_VERSION_EXTRA");
  if (!env) {
    std::string modifier;
#if defined(USE_AURA) && defined(OS_LINUX) && !defined(OS_CHROMEOS)
    modifier = "aura";
#endif
    return modifier;
  }
  std::string modifier(env);

#if defined(GOOGLE_CHROME_BUILD)
  // Only ever return "", "unknown", "dev" or "beta" in a branded build.
  if (modifier == "unstable")  // linux version of "dev"
    modifier = "dev";
  if (modifier == "stable") {
    modifier = "";
  } else if ((modifier == "dev") || (modifier == "beta")) {
    // do nothing.
  } else {
    modifier = "unknown";
  }
#endif

#if defined(USE_AURA) && defined(OS_LINUX) && !defined(OS_CHROMEOS)
  modifier += " aura";
#endif

  return modifier;
}

// static
VersionInfo::Channel VersionInfo::GetChannel() {
#if defined(GOOGLE_CHROME_BUILD)
  std::string channel = GetVersionStringModifier();
  // There might be suffixes after channel name (e.g. "aura"), so match just
  // the beginning of version string modifier.
  if (channel.empty()) {
    return CHANNEL_STABLE;
  } else if (StartsWithASCII(channel, "beta ", true)) {
    return CHANNEL_BETA;
  } else if (StartsWithASCII(channel, "dev ", true)) {
    return CHANNEL_DEV;
  } else if (StartsWithASCII(channel, "canary ", true)) {
    return CHANNEL_CANARY;
  }
#endif

  return CHANNEL_UNKNOWN;
}

}  // namespace chrome