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core: dump neighbour cache directories (from old OpenCV versions)

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- use '3.4.x' cache name for current maintenance series (there are no serious changes between releases)
- message is shown only once during creation of new cache directory
- use OPENCV_CACHE_SHOW_CLEANUP_MESSAGE=0 to hide this warning
This commit is contained in:
Alexander Alekhin 2018-08-06 18:48:25 +03:00
parent ac4a6aad15
commit 9eaa583bfb
1 changed files with 26 additions and 1 deletions
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27
modules/core/src/utils/filesystem.cpp
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@ -469,7 +469,32 @@ cv::String getCacheDirectory(const char* sub_directory_name, const char* configu
{ {
if (utils::fs::isDirectory(default_cache_path)) if (utils::fs::isDirectory(default_cache_path))
{ {
default_cache_path = utils::fs::join(default_cache_path, utils::fs::join("opencv", CV_VERSION)); cv::String default_cache_path_base = utils::fs::join(default_cache_path, "opencv");
default_cache_path = utils::fs::join(default_cache_path_base, "3.4.x" CV_VERSION_STATUS);
if (utils::getConfigurationParameterBool("OPENCV_CACHE_SHOW_CLEANUP_MESSAGE", true)
&& !utils::fs::isDirectory(default_cache_path))
{
std::vector<cv::String> existedCacheDirs;
try
{
utils::fs::glob_relative(default_cache_path_base, "*", existedCacheDirs, false, true);
}
catch (...)
{
// ignore
}
if (!existedCacheDirs.empty())
{
CV_LOG_WARNING(NULL, "Creating new OpenCV cache directory: " << default_cache_path);
CV_LOG_WARNING(NULL, "There are several neighbour directories, probably created by old OpenCV versions.");
CV_LOG_WARNING(NULL, "Feel free to cleanup these unused directories:");
for (size_t i = 0; i < existedCacheDirs.size(); i++)
{
CV_LOG_WARNING(NULL, " - " << existedCacheDirs[i]);
}
CV_LOG_WARNING(NULL, "Note: This message is showed only once.");
}
}
if (sub_directory_name && sub_directory_name[0] != '\0') if (sub_directory_name && sub_directory_name[0] != '\0')
default_cache_path = utils::fs::join(default_cache_path, cv::String(sub_directory_name) + native_separator); default_cache_path = utils::fs::join(default_cache_path, cv::String(sub_directory_name) + native_separator);
if (!utils::fs::createDirectories(default_cache_path)) if (!utils::fs::createDirectories(default_cache_path))