mirror of
https://github.com/matrix-construct/construct
synced 2024-12-29 08:54:02 +01:00
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_FS_PATH_H
|
|
|
|
// Forward declarations for boost because it is not included here.
|
|
namespace boost::filesystem
|
|
{
|
|
struct path;
|
|
}
|
|
|
|
namespace ircd::fs
|
|
{
|
|
enum class base :uint;
|
|
struct basepath;
|
|
using path_view = vector_view<const string_view>;
|
|
using path_strings = vector_view<const std::string>;
|
|
|
|
extern const size_t NAME_MAX_LEN;
|
|
extern const size_t PATH_MAX_LEN;
|
|
|
|
// convenience tls buffers of appropriate size.
|
|
extern const mutable_buffer path_scratch;
|
|
extern const mutable_buffer name_scratch;
|
|
|
|
filesystem::path _path(std::string);
|
|
filesystem::path _path(const string_view &);
|
|
filesystem::path _path(const path_view &);
|
|
filesystem::path _path(const path_strings &);
|
|
|
|
string_view path(const base &) noexcept;
|
|
string_view path(const mutable_buffer &, const base &, const string_view &);
|
|
string_view path(const mutable_buffer &, const path_view &);
|
|
string_view path(const mutable_buffer &, const path_strings &);
|
|
string_view path(const mutable_buffer &, const filesystem::path &);
|
|
template<class... A> std::string path_string(A&&...);
|
|
|
|
bool is_relative(const string_view &path);
|
|
bool is_absolute(const string_view &path);
|
|
|
|
string_view extension(const mutable_buffer &, const string_view &path, const string_view &replace);
|
|
string_view extension(const mutable_buffer &, const string_view &path);
|
|
string_view relative(const mutable_buffer &, const string_view &root, const string_view &path);
|
|
string_view filename(const mutable_buffer &, const string_view &path);
|
|
string_view parent(const mutable_buffer &, const string_view &path);
|
|
|
|
long pathconf(const string_view &path, const int &arg);
|
|
size_t name_max_len(const string_view &path);
|
|
size_t path_max_len(const string_view &path);
|
|
|
|
string_view cwd(const mutable_buffer &buf);
|
|
std::string cwd();
|
|
}
|
|
|
|
/// A compile-time installation base-path. We have several of these in an
|
|
/// internal array accessible with get(enum base) or make_path(enum base).
|
|
/// These can still be modified at runtime by setting a new platform-dependent
|
|
/// string with set(enum base); do so with care.
|
|
struct ircd::fs::basepath
|
|
{
|
|
string_view name;
|
|
string_view path;
|
|
|
|
static const basepath &get(const base &) noexcept;
|
|
static string_view set(const base &, const string_view &); // (returns old value)
|
|
};
|
|
|
|
/// Index of default paths. Must be aligned with the internal array in fs.cc.
|
|
/// Note that even though the PREFIX is accessible here, custom installations
|
|
/// may use entirely different paths for other components; most installations
|
|
/// use the package-target name as a path component.
|
|
enum class ircd::fs::base
|
|
:uint
|
|
{
|
|
PREFIX, ///< Installation prefix (from ./configure --prefix)
|
|
BIN, ///< Binary directory (e.g. $prefix/bin)
|
|
CONF, ///< Configuration directory (e.g. $prefix/etc)
|
|
DATA, ///< Read-only data directory (e.g. $prefix/share)
|
|
DB, ///< Database directory (e.g. $prefix/var/db)
|
|
LOG, ///< Logfile directory (e.g. $prefix/var/log)
|
|
MODULES, ///< Modules directory (e.g. $prefix/lib/modules)
|
|
|
|
_NUM_
|
|
};
|
|
|
|
template<class... A>
|
|
std::string
|
|
ircd::fs::path_string(A&&... a)
|
|
{
|
|
const size_t &size
|
|
{
|
|
PATH_MAX_LEN | SHRINK_TO_FIT
|
|
};
|
|
|
|
return util::string(size, [&a...]
|
|
(const mutable_buffer &buf)
|
|
{
|
|
return path(buf, std::forward<A>(a)...);
|
|
});
|
|
}
|