GitLab

ref #3027

Acked-by: Natanael Copa <ncopa@alpinelinux.org>

no need to muldiv all the time, just pass the current amount of bytes
done, and let callbacks use that directly.

Otherwise we end up using wrong uid/gid mappings when doing install
to alternate system root. Fixes #434.

the uid and gid are used in other places than just changing file
ownership on extraction.

Seems like recent eglibc requires that you include sys/stat.h

Take the uid/gid from passwd and group.

turns out the logic does not work with overlays as expected due
to busybox symlinks being unmanaged. remove the useless option.

otherwise we always extract the file as .apk-new and the database
side just overwrites.

to never ever overwrite a while in the filesystem the user knows
about. it gives the impression of extraction succeeding even though
nothing was done. this is inteded to be used only for bootstrapping
with overlay.

ability embed description information to repository indexes
(e.g. repository name and version) and show it via "apk version -I".

and take checksums for symlinks too.

We need the define for uint16

this way we never change cwd, and relative filenames are always
parsed consistently. this also helps filename construction in many
places. this patch also changes '--root' to override location of
all configuration to be in the new root. previously it depended
on the file which one was used.

apparently it needs to have both PROT_READ and PROT_WRITE. and
it needs to be MAP_SHARED for the writing to be effective. oh,
and the data needs to be preallocated with ftruncate; otherwise,
one gets SIGBUS.

and force checksumming only when unpacking archive. otherwise
it's extra computation for nothing.

otherwise bad things happens. avoid this be checking end of
stream at the beginning of read.

Otherwise will link(2) fail since it does not exist.

- extract everything as .apk-new and overwrite only after data
  has been checksummed
- url construction fixes (to work with simple http servers)
- end of gunzip stream fixed
- remove oneshot digesting flag for now as it's usage was broken

prefer index in the new format as signed .tar.gz.

to speed up apk installation avoid calculating checksums.

change the index generation to do old index, or the new style index
where package identity is sha1 of control block and it's contained
within an .tar.gz to allow signing in future.

this also convers scripts file to a tar archive.

snprintf is dog slow. make the blob stuff have some helper functions
so we can use them in code paths that are executed often.

some fixes on index reading code too.

in future we want to checksum on gzip boundary basis, not the
full file.