123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120 |
- // Copyright (c) 2012 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.
- // Defines base::PathProviderPosix, default path provider on POSIX OSes that
- // don't have their own base_paths_OS.cc implementation (i.e. all but Mac and
- // Android).
- #include "base/base_paths.h"
- #include <limits.h>
- #include <stddef.h>
- #include <memory>
- #include <ostream>
- #include <string>
- #include "base/environment.h"
- #include "base/files/file_path.h"
- #include "base/files/file_util.h"
- #include "base/logging.h"
- #include "base/nix/xdg_util.h"
- #include "base/notreached.h"
- #include "base/path_service.h"
- #include "base/process/process_metrics.h"
- #include "build/build_config.h"
- #if BUILDFLAG(IS_FREEBSD)
- #include <sys/param.h>
- #include <sys/sysctl.h>
- #elif BUILDFLAG(IS_SOLARIS) || BUILDFLAG(IS_AIX)
- #include <stdlib.h>
- #endif
- namespace base {
- bool PathProviderPosix(int key, FilePath* result) {
- switch (key) {
- case FILE_EXE:
- case FILE_MODULE: { // TODO(evanm): is this correct?
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
- FilePath bin_dir;
- if (!ReadSymbolicLink(FilePath(kProcSelfExe), &bin_dir)) {
- NOTREACHED() << "Unable to resolve " << kProcSelfExe << ".";
- return false;
- }
- *result = bin_dir;
- return true;
- #elif BUILDFLAG(IS_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 BUILDFLAG(IS_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 BUILDFLAG(IS_OPENBSD) || BUILDFLAG(IS_AIX)
- // 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 DIR_SRC_TEST_DATA_ROOT: {
- // Allow passing this in the environment, for more flexibility in build
- // tree configurations (sub-project builds, gyp --output_dir, etc.)
- std::unique_ptr<Environment> env(Environment::Create());
- std::string cr_source_root;
- FilePath path;
- if (env->GetVar("CR_SOURCE_ROOT", &cr_source_root)) {
- path = FilePath(cr_source_root);
- if (PathExists(path)) {
- *result = path;
- return true;
- }
- DLOG(WARNING) << "CR_SOURCE_ROOT is set, but it appears to not "
- << "point to a directory.";
- }
- // On POSIX, unit tests execute two levels deep from the source root.
- // For example: out/{Debug|Release}/net_unittest
- if (PathService::Get(DIR_EXE, &path)) {
- *result = path.DirName().DirName();
- return true;
- }
- DLOG(ERROR) << "Couldn't find your source root. "
- << "Try running from your chromium/src directory.";
- return false;
- }
- case DIR_USER_DESKTOP:
- *result = nix::GetXDGUserDirectory("DESKTOP", "Desktop");
- return true;
- case DIR_CACHE: {
- std::unique_ptr<Environment> env(Environment::Create());
- FilePath cache_dir(
- nix::GetXDGDirectory(env.get(), "XDG_CACHE_HOME", ".cache"));
- *result = cache_dir;
- return true;
- }
- }
- return false;
- }
- } // namespace base
|