1 files changed, 135 insertions, 0 deletions
diff --git a/base/base_paths_posix.cc b/base/base_paths_posix.cc
new file mode 100644
index 0000000..14d17d6
--- /dev/null
+++ b/base/base_paths_posix.cc
@@ -0,0 +1,135 @@
+// 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 "base/base_paths.h"
+
+#include <ostream>
+#include <string>
+
+#include "build/build_config.h"
+#include "base/environment.h"
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/path_service.h"
+#include "base/nix/xdg_util.h"
+
+#if defined(OS_FREEBSD)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#elif defined(OS_SOLARIS)
+#include <stdlib.h>
+#endif
+
+namespace base {
+
+#if defined(OS_LINUX)
+const char kSelfExe[] = "/proc/self/exe";
+#endif
+
+// The name of this file relative to the source root. This is used for checking
+// that the source checkout is in the correct place.
+static const char kThisSourceFile[] = "base/base_paths_posix.cc";
+
+bool PathProviderPosix(int key, FilePath* result) {
+  FilePath path;
+  switch (key) {
+    case base::FILE_EXE:
+    case base::FILE_MODULE: {  // TODO(evanm): is this correct?
+#if defined(OS_LINUX)
+      FilePath bin_dir;
+      if (!file_util::ReadSymbolicLink(FilePath(kSelfExe), &bin_dir)) {
+        NOTREACHED() << "Unable to resolve " << kSelfExe << ".";
+        return false;
+      }
+      *result = bin_dir;
+      return true;
+#elif defined(OS_FREEBSD)
+      int name[] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
+      char bin_dir[PATH_MAX + 1];
+      size_t length = sizeof(bin_dir);
+      // Upon return, |length| is the number of bytes written to |bin_dir|
+      // including the string terminator.
+      int error = sysctl(name, 4, bin_dir, &length, NULL, 0);
+      if (error < 0 || length <= 1) {
+        NOTREACHED() << "Unable to resolve path.";
+        return false;
+      }
+      *result = FilePath(FilePath::StringType(bin_dir, length - 1));
+      return true;
+#elif defined(OS_SOLARIS)
+      char bin_dir[PATH_MAX + 1];
+      if (realpath(getexecname(), bin_dir) == NULL) {
+        NOTREACHED() << "Unable to resolve " << getexecname() << ".";
+        return false;
+      }
+      *result = FilePath(bin_dir);
+      return true;
+#elif defined(OS_OPENBSD)
+      // There is currently no way to get the executable path on OpenBSD
+      char *cpath;
+      if ((cpath = getenv("CHROME_EXE_PATH")) != NULL)
+        *result = FilePath(cpath);
+      else
+        *result = FilePath("/usr/local/chrome/chrome");
+      return true;
+#endif
+    }
+    case base::DIR_SOURCE_ROOT: {
+      // Allow passing this in the environment, for more flexibility in build
+      // tree configurations (sub-project builds, gyp --output_dir, etc.)
+      scoped_ptr<base::Environment> env(base::Environment::Create());
+      std::string cr_source_root;
+      if (env->GetVar("CR_SOURCE_ROOT", &cr_source_root)) {
+        path = FilePath(cr_source_root);
+        if (file_util::PathExists(path.Append(kThisSourceFile))) {
+          *result = path;
+          return true;
+        } else {
+          DLOG(WARNING) << "CR_SOURCE_ROOT is set, but it appears to not "
+                        << "point to the correct source root directory.";
+        }
+      }
+      // On POSIX, unit tests execute two levels deep from the source root.
+      // For example:  out/{Debug|Release}/net_unittest
+      if (PathService::Get(base::DIR_EXE, &path)) {
+        path = path.DirName().DirName();
+        if (file_util::PathExists(path.Append(kThisSourceFile))) {
+          *result = path;
+          return true;
+        }
+      }
+      // In a case of WebKit-only checkout, executable files are put into
+      // <root of checkout>/out/{Debug|Release}, and we should return
+      // <root of checkout>/Source/WebKit/chromium for DIR_SOURCE_ROOT.
+      if (PathService::Get(base::DIR_EXE, &path)) {
+        path = path.DirName().DirName().Append("Source/WebKit/chromium");
+        if (file_util::PathExists(path.Append(kThisSourceFile))) {
+          *result = path;
+          return true;
+        }
+      }
+      // If that failed (maybe the build output is symlinked to a different
+      // drive) try assuming the current directory is the source root.
+      if (file_util::GetCurrentDirectory(&path) &&
+          file_util::PathExists(path.Append(kThisSourceFile))) {
+        *result = path;
+        return true;
+      }
+      DLOG(ERROR) << "Couldn't find your source root.  "
+                  << "Try running from your chromium/src directory.";
+      return false;
+    }
+    case base::DIR_CACHE:
+      scoped_ptr<base::Environment> env(base::Environment::Create());
+      FilePath cache_dir(base::nix::GetXDGDirectory(env.get(), "XDG_CACHE_HOME",
+                                                    ".cache"));
+      *result = cache_dir;
+      return true;
+  }
+  return false;
+}
+
+}  // namespace base