[bug] Bugs in runtime_deployer

[valgur]

Describe the bug

Keeping the bug report info from #16527.

The runtime_deployer from #15382 is a very good addition to Conan, but the implementation currently has some defects:

• Only *.so files (e.g. libz.so) are copied, but not *.so.* (e.g. libz.so.1 and libz.so.1.3.1).
• shutil.copy2(..., follow_symlinks=symlinks) should be shutil.copy2(..., follow_symlinks=not symlinks).

How to reproduce it

No response

[johan-boule]

Another issue is that runtime_deploy does not keep any tree structure.
For example, the openssl package has lib/engines-3/capi.so.
Deployers should keep these trees intact.

I considered trying full_deploy instead and post-processing its output to merge all the packages together into one single tree, something like mv full_deploy/host/*/*/*/*/lib*/* lib64/ mv full_deploy/host/*/*/*/*/bin/* bin/

But there's also mystery with full_deploy, it doesn't seem to deploy the runtime libs:

$ ls full_deploy/host/*/*/*/*/lib/
full_deploy/host/benchmark/1.8.4/Release/x86_64/lib/:
full_deploy/host/bzip2/1.0.8/Release/x86_64/lib/:
full_deploy/host/fmt/10.2.1/Release/x86_64/lib/:
full_deploy/host/gtest/1.14.0/Release/x86_64/lib/:
full_deploy/host/libcurl/8.8.0/Release/x86_64/lib/:
full_deploy/host/libpq/15.5/Release/x86_64/lib/:
full_deploy/host/ocilib/4.7.4/Release/x86_64/lib/:
full_deploy/host/openssl/3.2.2/Release/x86_64/lib/:
cmake
full_deploy/host/oracle-instant-client/19.5.0/Release/x86_64/lib/:
full_deploy/host/pcre2/10.42/Release/x86_64/lib/:
full_deploy/host/poco/1.13.3/Release/x86_64/lib/:
full_deploy/host/pugixml/1.14/Release/x86_64/lib/:
full_deploy/host/spdlog/1.14.1/Release/x86_64/lib/:
full_deploy/host/xerces-c/3.2.5/Release/x86_64/lib/:
full_deploy/host/zlib/1.3.1/Release/x86_64/lib/:

This might be the same bug.
If we look at poco's package tree for example, it contains lib files all in this form:

libPocoCrypto.so -> libPocoCrypto.so.103
libPocoCrypto.so.103

So, all regular files are *.so.* and all symlinks are *.so
Maybe the deployer takes *.so BUT ignores symlinks ?