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Common: Switch to the XDG Base Directory Specification for directory selection.

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This allows for easily movable and independent configuration and data directories, using standardized paths.
This commit is contained in:
Emmanuel Gil Peyrot 2015-02-16 03:15:34 +00:00
parent 40d1f9045a
commit 129ad721c1
2 changed files with 69 additions and 10 deletions
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2
src/common/common_paths.h
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@ -25,7 +25,7 @@
#ifdef USER_DIR
#define EMU_DATA_DIR USER_DIR
#else
#define EMU_DATA_DIR ".citra-emu"
#define EMU_DATA_DIR "citra-emu"
#endif
#endif

77
src/common/file_util.cpp
View file

@ -16,7 +16,10 @@
#include <tchar.h>
#else
#include <sys/param.h>
#include <sys/types.h>
#include <dirent.h>
#include <pwd.h>
#include <unistd.h>
#endif
#if defined(__APPLE__)
@ -632,6 +635,55 @@ std::string& GetExeDirectory()
}
return exe_path;
}
#else
/**
* @return The user’s home directory on POSIX systems
*/
static const std::string& GetHomeDirectory() {
static std::string home_path;
if (home_path.empty()) {
const char* envvar = getenv("HOME");
if (envvar) {
home_path = envvar;
} else {
auto pw = getpwuid(getuid());
ASSERT_MSG(pw, "$HOME isn’t defined, and the current user can’t be found in /etc/passwd.");
home_path = pw->pw_dir;
}
}
return home_path;
}
/**
* Follows the XDG Base Directory Specification to get a directory path
* @param envvar The XDG environment variable to get the value from
* @return The directory path
* @sa http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
*/
static const std::string GetUserDirectory(const std::string& envvar) {
const char* directory = getenv(envvar.c_str());
std::string user_dir;
if (directory) {
user_dir = directory;
} else {
std::string subdirectory;
if (envvar == "XDG_DATA_HOME")
subdirectory = DIR_SEP ".local" DIR_SEP "share";
else if (envvar == "XDG_CONFIG_HOME")
subdirectory = DIR_SEP ".config";
else if (envvar == "XDG_CACHE_HOME")
subdirectory = DIR_SEP ".cache";
else
ASSERT_MSG(false, "Unknown XDG variable %s.", envvar.c_str());
user_dir = GetHomeDirectory() + subdirectory;
}
ASSERT_MSG(!user_dir.empty(), "User directory %s musn’t be empty.", envvar.c_str());
ASSERT_MSG(user_dir[0] == '/', "User directory %s must be absolute.", envvar.c_str());
return user_dir;
}
#endif
std::string GetSysDirectory()
@ -661,20 +713,27 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string &new
if (paths[D_USER_IDX].empty())
{
#ifdef _WIN32
paths[D_USER_IDX] = GetExeDirectory() + DIR_SEP USERDATA_DIR DIR_SEP;
paths[D_USER_IDX] = GetExeDirectory() + DIR_SEP USERDATA_DIR DIR_SEP;
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
#else
if (FileUtil::Exists(ROOT_DIR DIR_SEP USERDATA_DIR))
paths[D_USER_IDX] = ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP;
else
paths[D_USER_IDX] = std::string(getenv("HOME") ?
getenv("HOME") : getenv("PWD") ?
getenv("PWD") : "") + DIR_SEP EMU_DATA_DIR DIR_SEP;
if (FileUtil::Exists(ROOT_DIR DIR_SEP USERDATA_DIR)) {
paths[D_USER_IDX] = ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP;
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
} else {
std::string data_dir = GetUserDirectory("XDG_DATA_HOME");
std::string config_dir = GetUserDirectory("XDG_CONFIG_HOME");
std::string cache_dir = GetUserDirectory("XDG_CACHE_HOME");
paths[D_USER_IDX] = data_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
paths[D_CONFIG_IDX] = config_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
paths[D_CACHE_IDX] = cache_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
}
#endif
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_GAMECONFIG_IDX] = paths[D_USER_IDX] + GAMECONFIG_DIR DIR_SEP;
paths[D_MAPS_IDX] = paths[D_USER_IDX] + MAPS_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
paths[D_SDMC_IDX] = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
paths[D_NAND_IDX] = paths[D_USER_IDX] + NAND_DIR DIR_SEP;
paths[D_SYSDATA_IDX] = paths[D_USER_IDX] + SYSDATA_DIR DIR_SEP;