With xbps-rindex(8) -c/-r being multithreaded, the memory usage was
insanely high in the build server, with peaks of almost 4GB (this depends
on the file size being processed and number of threads).
Process the file in small chunks instead to compute the SHA256 hash.
The repodata archive wasn't group writable, resulting in a new archive
created from scratch if the fd wasn't writable.
repodata archives are now created with 0664 mode, this way its main group
also can write to it.
This effectively checks that all pkgs in a transaction to be installed
or updated, have not unmatched shared libraries, which might happen with
pkgs that had major soname bumps.
This implementation slow downs xbps_transaction_prepare() 2x, due to
the use of xbps_pkgdb_get_pkg_metadata(). A new pkgdb format is required
that adds the pkg shlib-provides objects to pkgdb, avoiding the need
to use xbps_pkgdb_get_pkg_metadata().
- xbps_repo_open() accepts a third argument (bool) to acquire a POSIX file
lock on the repository archive.
- xbps_repo_close() accepts a second argument (bool) to release a POSIX file
lock on the repository archive.
This avoids the issue of multiple xbps-rindex(8) processes being blocked
even for different repositories on the same architecture, resulting in
unnecessary contention.
If a package that is going to be installed or updated contains invalid
dependencies return ENXIO and XBPS_STATE_INVALID_DEP xbps state to clients.
This improves the error messages returned to the clients when such
condition happens.
The system virtualpkg directory set to <rootdir>/usr/share/xbps/virtualpkg.d contains
virtualpkg configuration files (.conf/.vpkg) that can be overrided by the admin
in <rootdir>/etc/xbps/virtualpkg.d bearing the same file name.
This obsoletes the "virtualpkgdir" keyword support from the xbps configuration file.
The system repository directory set to <prefix>/share/xbps/repo.d contains
system repository configuration files (.conf) that can be overrided by the admin
in <sysconfdir>/xbps/repo.d bearing the same file name.
