blender/intern/cycles/util/util_path.h
Sergey Sharybin 91e0a16f2f Cycles: Use XDG's .cache folder for cached kernels
Basically just moves cached kernels from ~/.config/blender/BLENDER_VERSION to
~/.cache/cycles/kernels. This has following benefits:

- Follows XDG specification more closely,
  not as if it's totally crucial or measurable by users, but still nice.

- Prevents unexpected sizes of config folder, makes disk space used in more
  predictable for users way.

- Allows to share kernels across multiple Blender versions,
  which makes it easier debugging at the times close to release.

- "Copy Previous Settings" operator will no longer be copying possibly
  gigabytes of cached kernels, which used to lead to really nast disk usage
  and annoying delays of copying settings.

- In the future we can have some smart logic to clear old unused cached
  kernels.

Currently only done for Linux and OSX. Windows still follows old "cache"
folder logic, but it's not really important for now because we don't
support kernel compilation on this platform yet.

Reviewers: dingto, juicyfruit, brecht

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D2197
2016-09-12 09:39:05 +02:00

78 lines
2.4 KiB
C

/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __UTIL_PATH_H__
#define __UTIL_PATH_H__
/* Utility functions to get paths to files distributed with the program. For
* the standalone apps, paths are relative to the executable, for dynamically
* linked libraries, the path to the library may be set with path_init, which
* then makes all paths relative to that. */
#include <stdio.h>
#include "util_set.h"
#include "util_string.h"
#include "util_types.h"
#include "util_vector.h"
CCL_NAMESPACE_BEGIN
/* program paths */
void path_init(const string& path = "", const string& user_path = "");
string path_get(const string& sub = "");
string path_user_get(const string& sub = "");
string path_cache_get(const string& sub = "");
/* path string manipulation */
string path_filename(const string& path);
string path_dirname(const string& path);
string path_join(const string& dir, const string& file);
string path_escape(const string& path);
bool path_is_relative(const string& path);
/* file info */
size_t path_file_size(const string& path);
bool path_exists(const string& path);
bool path_is_directory(const string& path);
string path_files_md5_hash(const string& dir);
uint64_t path_modified_time(const string& path);
/* directory utility */
void path_create_directories(const string& path);
/* file read/write utilities */
FILE *path_fopen(const string& path, const string& mode);
bool path_write_binary(const string& path, const vector<uint8_t>& binary);
bool path_write_text(const string& path, string& text);
bool path_read_binary(const string& path, vector<uint8_t>& binary);
bool path_read_text(const string& path, string& text);
/* File manipulation. */
bool path_remove(const string& path);
/* source code utility */
string path_source_replace_includes(const string& source, const string& path);
/* cache utility */
void path_cache_clear_except(const string& name, const set<string>& except);
CCL_NAMESPACE_END
#endif