* Better git usage in donate-cpu.py to reduce bandwidth and disk usage
Main changes:
* Bump client version
* Move try+retry logic to function try_retry to reduce duplication
* Use exponential backoff for try_retry
* git clone with --depth=1 to reduce bandwidth and disk use
* Use multiple worktree to work with multiple versions, instead of back-and-forth checkouts
* donate-cpu.py fixes for review comments and automated check failures
* Move compile_cppcheck within (if ver == 'main) branch to avoid duplicate compile_cppcheck+compile_version cals
* Use classic format syntax for python 3.5 compatibility
* Fix undefined CalledProcessError detected by pylint
* donate-cpu.py code changes following code review
* Migration existing "cppcheck" directory if available instead of "git clone"
* Logging message tweaks
* Use subprocess' cwd parameter instead of os.chdir() to avoid risk around changing and not restoring the working directory
* Update tools/test-my-pr.py to account for donate_cpu_lib changes
* donate-cpu.py: ensure correct workspace locations with relative --work-path
Sometimes it could happen that SIGSEGV is thrown when Cppcheck is killed
because of a timeout. Then the execution is wrongly handled as a crash
and debugged with gdb instead of marking it as timed out.
This fixes that issue by checking the time out before checking sig_num.
This adds a timeout of 60 minutes for the Cppcheck analysis.
Timed out results do not count as crash but they are uploaded and
marked with "TO!" in the list of the latest results. No "diff" is
generated for timed out results so they do not add wrong entries to
the "Diff report".
In test-my-pr.py the timed out results are listed separately just like
the crashes.
donate-cpu-server.py: Add timeout report
* donate_cpu_lib: Fix python 3 crash if fail to get package
Decoding a string is not allowed in python 3 (in python 2 it works).
If fetching the package fails, assign an empty byte string instead to
avoid crashing.
* Initialize package instead
* openssl.cfg: Add OpenSSL library configuration with tests
Reference: https://www.openssl.org/docs/man1.1.1/man3/
* openssl.cfg: Add some configurations for EVP functions
Add alloc/dealloc configuration for EVP_CIPHER_CTX_new and
EVP_CIPHER_CTX_free.
Add configuration for encryption functions that are used in example code
which is added to the tests.
* libsigc++.cfg: Add configuration for library libsigc++
Reference: https://libsigcplusplus.github.io/libsigcplusplus/
* Make code compatible with libsigc++-2.0 instead of 3.0
Since Version 3.0 C++14 is required which is not (fully) supported in
some older GCC versions.