- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC: r287579

Implement pubkey support for the bootstrap

Note that to not interfer with finger print it expects a signature on pkg itself
which is named pkg.txz.pubkeysign

To genrate it:
echo -n "$(sha256 -q pkg.txz)" | openssl dgst -sha256 -sign /thekey \
-binary -out ./pkg.txz.pubkeysig

Note the "echo -n" which prevent signing the '\n' one would get otherwise

PR: 202622

MFC: r273754 (by nwhitehorn)

Use pkg-1.4-style platform identifiers based on MACHINE_ARCH (e.g.
FreeBSD:11:amd64 instead of freebsd:11:x86:64) when bootstrapping pkg.
Thanks to portmgr for providing symlinks so both styles work.

Reviewed by: bapt
MFC after: 3 weeks

MFC: r263648, r264789, r266636

This brings:
- schema validation
- xpath-like interface for ucl objects

Adapt pkg(7) to the new libucl API

MFC r263181:

Fix ASSUME_ALWAYS_YES not being parsed properly from config after UCL conversion.

MFC r263180:

Fix ABI from /usr/local/etc/pkg.conf not being respected.

r262400,r262401,r262418

Sync pkg(7) with head

Implicit include of sys/queue.h instead of relying on gelf.h/libelf.h to bring it
Newer version of gelf.h and libelf.h does not include sys/queue.h anymore

Submitted by: kaiw

MFC r259266:

Fix multi-repository support by properly respecting 'enabled' flag.

This will read the REPOS_DIR env/config setting (default is /etc/pkg
and /usr/local/etc/pkg/repos) and use the last enabled repository.

This can be changed in the environment using a comma-separated list,
or in /usr/local/etc/pkg.conf with JSON array syntax of:
REPOS_DIR: ["/etc/pkg", "/usr/local/etc/pkg/repos"]

Approved by: bapt (mentor)

MFC: r256770,r257142,r257145,r257146,r257147,r257148,
r257149,r257150,r257158,r257159,r257164,r257168,
r257193

- Support checking signature for pkg bootstrap from remote
and for 'pkg add ./pkg.txz'

- Be verbose on where pkg is being bootstrapped from.

- Add support for reading configuration files from /etc/pkg.
For now only /etc/pkg/FreeBSD.conf is supported.

- Add test package signing key fingerprint into /etc/keys/pkg/trusted.

- Disable fingerprint checking by default for now as the official
packages are not yet signed.

Approved by: bapt
Approved by: re (glebius)

MFC r257051:

Add support for using "pkg+http://" for the PACKAGESITE.

pkg 1.2 is adding this support as well. This should help
lessen the confusion on why the default SRV PACKAGESITE
does not load in a browser.

Approved by: bapt
Approved by: re (glebius)

MFC r256450:

Rename libbsdyml to libyaml, make private, and bump
SHLIB_MAJOR to 1.0

Approved by: bapt
Approved by: re (glebius)

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Add support to detect arm vs armv6

There are two different versions of the ARM ABI depending on the
TARGET_ARCH. As these are sligntly different a package built for
one may not work on another. We need to detect which one we are on
by parsing the .ARM.attributes section.

This will only work on the ARM EABI as this section is part of the
ABI definition. As armv6 only supports the ARM EABI this is not a
problem for the oabi.

Older versions of libelf in FreeBSD fail to read the
.ARM.attributes section needed. As armv6 is unsupported on these
versions we can assume we are running on arm.

Submitted by: andrew
Approved by: re (delphij)
Obtained from: pkgng git

Fix detection of arm ABIs

Submitted by: andrew
Obtained from: pkg git

choose in priority the allocated ABI if any to do the ${ABI} substitution in PACKAGESITE

Reviewed by: bdrewery

Add the ability to correctly read pkg.conf is exists.

Only look for boostrap useful options:
- PACKAGESITE
- ABI
- MIRROR_TYPE
- ASSUME_ALWAYS_YES

While here makes PACKAGESITE expand the ${ABI} variable.
Allow to deactivate any SRV record look up (MIRROR_TYPE=none)
Use the same mechanism as for pkgng itself: first get configuration out of
environment variable and fallback on pkg.conf if exists.

Reviewed by: bdrewery