This function returns and internalized dictionary from a package's metadata
plist file as specified by its arguments.
Update all code to use it where appropiate.
- There's no need to check rval for prop_dictionary_get_*, we are sure the
objects are there at prop_dictionary_set_* time.
- Avoid two chdir(2) calls per INSTALL/REMOVE run.
- Avoid using access(2) to check for existence of INSTALL/REMOVE scripts,
just try to run the executable directly and check for ENOENT.
This new target 'find-files' can be used to find which installed
package(s) own a file. Exact matches like "/bin/mount" or patterns
like "/usr/lib/libb[ao]b\*" can be specified.
Includes the following change:
* When replacing a package that is going to be updated in the transaction
do not remove it, just overwrite its files and continue. The updated
package will find that old files didn't match the SHA256 hash and will
skip them. This solves the issue of new package updates requiring new
dependencies with files that were previously stored in the old version.
For example gtk+-2.20 containing gdk-pixbuf, and gtk+-2.22 requiring
gdk-pixbuf externally.
* libxbps: improved xbps_get_file_hash() to mmap(2) rather than read(2)
the file we have to process. With mmap'ed files the hash can be
processed 5x faster than before, or even more in some cases.
* libxbps: switch to OpenSSL SHA256 implementation and remove the one
previously used. It's faster and OpenSSL is required for libfetch so
there is not point in using it.
Changes included in this set:
* Added strlcat() and strlcpy() from OpenBSD, always use them if the
system does not have them built in.
* Changed an array of PATH_MAX size allocated in the stack, to a dynamically
allocated buffer from heap. This should reduce memory usage a bit.
* Simplify code that implemented a homegrown realpath(3) implementation,
simply use realpath(3).
* If compiler supports -fstack-protector, build all code with
-D_FORTIFY_SOURCE=2 and --param ssp-buffer-size=1 so that all
buffers are protected.
