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/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "util_debug.h"
#include "util_md5.h"
#include "util_path.h"
#include "util_string.h"
#include <OpenImageIO/sysutil.h>
OIIO_NAMESPACE_USING
#include <stdio.h>
#include <boost/version.hpp>
#if (BOOST_VERSION < 104400)
# define BOOST_FILESYSTEM_VERSION 2
#endif
#include <boost/filesystem.hpp>
#include <boost/algorithm/string.hpp>
CCL_NAMESPACE_BEGIN
static string cached_path = "";
static string cached_user_path = "";
void path_init(const string& path, const string& user_path)
{
cached_path = path;
cached_user_path = user_path;
}
string path_get(const string& sub)
{
if(cached_path == "")
cached_path = path_dirname(Sysutil::this_program_path());
return path_join(cached_path, sub);
}
string path_user_get(const string& sub)
{
if(cached_user_path == "")
cached_user_path = path_dirname(Sysutil::this_program_path());
return path_join(cached_user_path, sub);
}
string path_filename(const string& path)
{
#if (BOOST_FILESYSTEM_VERSION == 2)
return boost::filesystem::path(path).filename();
#else
return boost::filesystem::path(path).filename().string();
#endif
}
string path_dirname(const string& path)
{
return boost::filesystem::path(path).parent_path().string();
}
string path_join(const string& dir, const string& file)
{
return (boost::filesystem::path(dir) / boost::filesystem::path(file)).string();
}
string path_escape(const string& path)
{
string result = path;
boost::replace_all(result, " ", "\\ ");
return result;
}
bool path_exists(const string& path)
{
return boost::filesystem::exists(path);
}
static void path_files_md5_hash_recursive(MD5Hash& hash, const string& dir)
{
if(boost::filesystem::exists(dir)) {
boost::filesystem::directory_iterator it(dir), it_end;
for(; it != it_end; it++) {
if(boost::filesystem::is_directory(it->status())) {
path_files_md5_hash_recursive(hash, it->path().string());
}
else {
string filepath = it->path().string();
hash.append((const uint8_t*)filepath.c_str(), filepath.size());
hash.append_file(filepath);
}
}
}
}
string path_files_md5_hash(const string& dir)
{
/* computes md5 hash of all files in the directory */
MD5Hash hash;
path_files_md5_hash_recursive(hash, dir);
return hash.get_hex();
}
void path_create_directories(const string& path)
{
boost::filesystem::create_directories(path_dirname(path));
}
bool path_write_binary(const string& path, const vector<uint8_t>& binary)
{
path_create_directories(path);
/* write binary file from memory */
FILE *f = fopen(path.c_str(), "wb");
if(!f)
return false;
if(binary.size() > 0)
fwrite(&binary[0], sizeof(uint8_t), binary.size(), f);
fclose(f);
return true;
}
bool path_read_binary(const string& path, vector<uint8_t>& binary)
{
binary.resize(boost::filesystem::file_size(path));
/* read binary file into memory */
FILE *f = fopen(path.c_str(), "rb");
if(!f)
return false;
if(binary.size() == 0) {
fclose(f);
return false;
}
if(fread(&binary[0], sizeof(uint8_t), binary.size(), f) != binary.size()) {
fclose(f);
return false;
}
fclose(f);
return true;
}
bool path_read_text(const string& path, string& text)
{
vector<uint8_t> binary;
if(!path_exists(path) || !path_read_binary(path, binary))
return false;
const char *str = (const char*)&binary[0];
size_t size = binary.size();
text = string(str, size);
return true;
}
uint64_t path_modified_time(const string& path)
{
if(boost::filesystem::exists(path))
return (uint64_t)boost::filesystem::last_write_time(path);
return 0;
}
string path_source_replace_includes(const string& source_, const string& path)
{
/* our own little c preprocessor that replaces #includes with the file
* contents, to work around issue of opencl drivers not supporting
* include paths with spaces in them */
string source = source_;
const string include = "#include \"";
size_t n, pos = 0;
while((n = source.find(include, pos)) != string::npos) {
size_t n_start = n + include.size();
size_t n_end = source.find("\"", n_start);
string filename = source.substr(n_start, n_end - n_start);
string text, filepath = path_join(path, filename);
if(path_read_text(filepath, text)) {
text = path_source_replace_includes(text, path_dirname(filepath));
source.replace(n, n_end + 1 - n, "\n" + text + "\n");
}
else
pos = n_end;
}
return source;
}
CCL_NAMESPACE_END
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